mysqld.cc 290 KB
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/* Copyright (C) 2000-2003 MySQL AB
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   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include "mysql_priv.h"
#include <m_ctype.h>
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#include <my_dir.h>
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#include "slave.h"
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#include "sql_repl.h"
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#include "rpl_filter.h"
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#include "repl_failsafe.h"
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#include "stacktrace.h"
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#include "mysqld_suffix.h"
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#include "mysys_err.h"
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#include "ha_myisam.h"
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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#define OPT_INNODB_DEFAULT 1
#else
#define OPT_INNODB_DEFAULT 0
#endif
#define OPT_BDB_DEFAULT 0
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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#define OPT_NDBCLUSTER_DEFAULT 0
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#if defined(NOT_ENOUGH_TESTED) \
  && defined(NDB_SHM_TRANSPORTER) && MYSQL_VERSION_ID >= 50000
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#define OPT_NDB_SHM_DEFAULT 1
#else
#define OPT_NDB_SHM_DEFAULT 0
#endif
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#else
#define OPT_NDBCLUSTER_DEFAULT 0
#endif

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#include <thr_alarm.h>
#include <ft_global.h>
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#include <errmsg.h>
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#include "sp_rcontext.h"
#include "sp_cache.h"
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#define mysqld_charset &my_charset_latin1
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#ifndef DBUG_OFF
#define ONE_THREAD
#endif

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#ifdef HAVE_purify
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#define IF_PURIFY(A,B) (A)
#else
#define IF_PURIFY(A,B) (B)
#endif

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/* stack traces are only supported on linux intel */
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#if defined(__linux__)  && defined(__i386__) && defined(USE_PSTACK)
#define	HAVE_STACK_TRACE_ON_SEGV
#include "../pstack/pstack.h"
char pstack_file_name[80];
#endif /* __linux__ */

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/* We have HAVE_purify below as this speeds up the shutdown of MySQL */

#if defined(HAVE_DEC_3_2_THREADS) || defined(SIGNALS_DONT_BREAK_READ) || defined(HAVE_purify) && defined(__linux__)
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#define HAVE_CLOSE_SERVER_SOCK 1
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#endif
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extern "C" {					// Because of SCO 3.2V4.2
#include <errno.h>
#include <sys/stat.h>
#ifndef __GNU_LIBRARY__
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#define __GNU_LIBRARY__				// Skip warnings in getopt.h
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#endif
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#include <my_getopt.h>
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#ifdef HAVE_SYSENT_H
#include <sysent.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>				// For getpwent
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
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#include <my_net.h>
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#if defined(OS2)
#  include <sys/un.h>
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#elif !defined(__WIN__)
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#  ifndef __NETWARE__
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#include <sys/resource.h>
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#  endif /* __NETWARE__ */
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#ifdef HAVE_SYS_UN_H
#  include <sys/un.h>
#endif
#include <netdb.h>
#ifdef HAVE_SELECT_H
#  include <select.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#include <sys/utsname.h>
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#endif /* __WIN__ */
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#ifdef HAVE_LIBWRAP
#include <tcpd.h>
#include <syslog.h>
#ifdef NEED_SYS_SYSLOG_H
#include <sys/syslog.h>
#endif /* NEED_SYS_SYSLOG_H */
int allow_severity = LOG_INFO;
int deny_severity = LOG_WARNING;
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#endif /* HAVE_LIBWRAP */

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#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif

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#ifdef __NETWARE__
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#define zVOLSTATE_ACTIVE 6
#define zVOLSTATE_DEACTIVE 2
#define zVOLSTATE_MAINTENANCE 3

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#include <nks/netware.h>
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#include <nks/vm.h>
#include <library.h>
#include <monitor.h>
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#include <zOmni.h>                              //For NEB
#include <neb.h>                                //For NEB
#include <nebpub.h>                             //For NEB
#include <zEvent.h>                             //For NSS event structures
#include <zPublics.h>

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static void *neb_consumer_id= NULL;             //For storing NEB consumer id
static char datavolname[256]= {0};
static VolumeID_t datavolid;
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static event_handle_t eh;
static Report_t ref;
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static void *refneb= NULL;
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my_bool event_flag= FALSE;
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static int volumeid= -1;
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  /* NEB event callback */
unsigned long neb_event_callback(struct EventBlock *eblock);
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static void registerwithneb();
static void getvolumename();
static void getvolumeID(BYTE *volumeName);
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#endif /* __NETWARE__ */
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#ifdef _AIX41
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int initgroups(const char *,unsigned int);
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#endif

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#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H)
#include <ieeefp.h>
#ifdef HAVE_FP_EXCEPT				// Fix type conflict
typedef fp_except fp_except_t;
#endif

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  /* We can't handle floating point exceptions with threads, so disable
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     this on freebsd
  */

inline void reset_floating_point_exceptions()
{
  /* Don't fall for overflow, underflow,divide-by-zero or loss of precision */
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#if defined(__i386__)
  fpsetmask(~(FP_X_INV | FP_X_DNML | FP_X_OFL | FP_X_UFL | FP_X_DZ |
	      FP_X_IMP));
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#else
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 fpsetmask(~(FP_X_INV |             FP_X_OFL | FP_X_UFL | FP_X_DZ |
	     FP_X_IMP));
#endif
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}
#else
#define reset_floating_point_exceptions()
#endif /* __FreeBSD__ && HAVE_IEEEFP_H */

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} /* cplusplus */

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#if defined(HAVE_LINUXTHREADS)
#define THR_KILL_SIGNAL SIGINT
#else
#define THR_KILL_SIGNAL SIGUSR2		// Can't use this with LinuxThreads
#endif
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#define MYSQL_KILL_SIGNAL SIGTERM
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#ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R
#include <sys/types.h>
#else
#include <my_pthread.h>			// For thr_setconcurency()
#endif

#ifdef SOLARIS
extern "C" int gethostname(char *name, int namelen);
#endif

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/* Constants */
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const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"};
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static const char *sql_mode_names[]=
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{
  "REAL_AS_FLOAT", "PIPES_AS_CONCAT", "ANSI_QUOTES", "IGNORE_SPACE",
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  "?", "ONLY_FULL_GROUP_BY", "NO_UNSIGNED_SUBTRACTION",
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  "NO_DIR_IN_CREATE",
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  "POSTGRESQL", "ORACLE", "MSSQL", "DB2", "MAXDB", "NO_KEY_OPTIONS",
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  "NO_TABLE_OPTIONS", "NO_FIELD_OPTIONS", "MYSQL323", "MYSQL40", "ANSI",
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  "NO_AUTO_VALUE_ON_ZERO", "NO_BACKSLASH_ESCAPES", "STRICT_TRANS_TABLES",
  "STRICT_ALL_TABLES",
  "NO_ZERO_IN_DATE", "NO_ZERO_DATE", "ALLOW_INVALID_DATES",
  "ERROR_FOR_DIVISION_BY_ZERO",
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  "TRADITIONAL", "NO_AUTO_CREATE_USER", "HIGH_NOT_PRECEDENCE",
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  "NO_ENGINE_SUBSTITUTION",
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  NullS
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};
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static const unsigned int sql_mode_names_len[]=
{
  /*REAL_AS_FLOAT*/               13,
  /*PIPES_AS_CONCAT*/             15,
  /*ANSI_QUOTES*/                 11,
  /*IGNORE_SPACE*/                12,
  /*?*/                           1,
  /*ONLY_FULL_GROUP_BY*/          18,
  /*NO_UNSIGNED_SUBTRACTION*/     23,
  /*NO_DIR_IN_CREATE*/            16,
  /*POSTGRESQL*/                  10,
  /*ORACLE*/                      6,
  /*MSSQL*/                       5,
  /*DB2*/                         3,
  /*MAXDB*/                       5,
  /*NO_KEY_OPTIONS*/              14,
  /*NO_TABLE_OPTIONS*/            16,
  /*NO_FIELD_OPTIONS*/            16,
  /*MYSQL323*/                    8,
  /*MYSQL40*/                     7,
  /*ANSI*/                        4,
  /*NO_AUTO_VALUE_ON_ZERO*/       21,
  /*NO_BACKSLASH_ESCAPES*/        20,
  /*STRICT_TRANS_TABLES*/         19,
  /*STRICT_ALL_TABLES*/           17,
  /*NO_ZERO_IN_DATE*/             15,
  /*NO_ZERO_DATE*/                12,
  /*ALLOW_INVALID_DATES*/         19,
  /*ERROR_FOR_DIVISION_BY_ZERO*/  26,
  /*TRADITIONAL*/                 11,
  /*NO_AUTO_CREATE_USER*/         19,
  /*HIGH_NOT_PRECEDENCE*/         19,
  /*NO_ENGINE_SUBSTITUTION*/      22
};
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TYPELIB sql_mode_typelib= { array_elements(sql_mode_names)-1,"",
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			    sql_mode_names,
                            (unsigned int *)sql_mode_names_len };
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static const char *tc_heuristic_recover_names[]=
{
  "COMMIT", "ROLLBACK", NullS
};
static TYPELIB tc_heuristic_recover_typelib=
{
  array_elements(tc_heuristic_recover_names)-1,"",
  tc_heuristic_recover_names, NULL
};
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const char *first_keyword= "first", *binary_keyword= "BINARY";
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const char *my_localhost= "localhost", *delayed_user= "DELAYED";
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#if SIZEOF_OFF_T > 4 && defined(BIG_TABLES)
#define GET_HA_ROWS GET_ULL
#else
#define GET_HA_ROWS GET_ULONG
#endif

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bool opt_large_files= sizeof(my_off_t) > 4;
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/*
  Used with --help for detailed option
*/
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static my_bool opt_help= 0, opt_verbose= 0;
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arg_cmp_func Arg_comparator::comparator_matrix[5][2] =
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{{&Arg_comparator::compare_string,     &Arg_comparator::compare_e_string},
 {&Arg_comparator::compare_real,       &Arg_comparator::compare_e_real},
 {&Arg_comparator::compare_int_signed, &Arg_comparator::compare_e_int},
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 {&Arg_comparator::compare_row,        &Arg_comparator::compare_e_row},
 {&Arg_comparator::compare_decimal,    &Arg_comparator::compare_e_decimal}};
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/* static variables */

static bool lower_case_table_names_used= 0;
static bool volatile select_thread_in_use, signal_thread_in_use;
static bool volatile ready_to_exit;
static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0;
static my_bool opt_bdb, opt_isam, opt_ndbcluster;
static my_bool opt_short_log_format= 0;
static my_bool opt_log_queries_not_using_indexes= 0;
static uint kill_cached_threads, wake_thread;
static ulong killed_threads, thread_created;
static ulong max_used_connections;
static ulong my_bind_addr;			/* the address we bind to */
static volatile ulong cached_thread_count= 0;
static const char *sql_mode_str= "OFF";
static char *mysqld_user, *mysqld_chroot, *log_error_file_ptr;
static char *opt_init_slave, *language_ptr, *opt_init_connect;
static char *default_character_set_name;
static char *my_bind_addr_str;
static char *default_collation_name;
static char mysql_data_home_buff[2];
static struct passwd *user_info;
static I_List<THD> thread_cache;

static pthread_cond_t COND_thread_cache, COND_flush_thread_cache;

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#ifdef WITH_BERKELEY_STORAGE_ENGINE
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static my_bool opt_sync_bdb_logs;
#endif
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/* Global variables */
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bool opt_log, opt_update_log, opt_bin_log, opt_slow_log;
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bool opt_error_log= IF_WIN(1,0);
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bool opt_disable_networking=0, opt_skip_show_db=0;
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my_bool opt_character_set_client_handshake= 1;
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bool server_id_supplied = 0;
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bool opt_endinfo,using_udf_functions;
my_bool locked_in_memory;
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bool opt_using_transactions, using_update_log;
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bool volatile abort_loop;
bool volatile shutdown_in_progress, grant_option;
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my_bool opt_skip_slave_start = 0; // If set, slave is not autostarted
my_bool opt_reckless_slave = 0;
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my_bool opt_enable_named_pipe= 0;
my_bool opt_local_infile, opt_slave_compressed_protocol;
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my_bool opt_safe_user_create = 0, opt_no_mix_types = 0;
my_bool opt_show_slave_auth_info, opt_sql_bin_update = 0;
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my_bool opt_log_slave_updates= 0;
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my_bool	opt_innodb;
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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extern SHOW_VAR innodb_status_variables[];
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extern uint innobase_init_flags, innobase_lock_type;
extern uint innobase_flush_log_at_trx_commit;
extern ulong innobase_cache_size, innobase_fast_shutdown;
extern ulong innobase_large_page_size;
extern char *innobase_home, *innobase_tmpdir, *innobase_logdir;
extern long innobase_lock_scan_time;
extern long innobase_mirrored_log_groups, innobase_log_files_in_group;
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extern longlong innobase_log_file_size;
extern long innobase_log_buffer_size;
extern longlong innobase_buffer_pool_size;
extern long innobase_additional_mem_pool_size;
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extern long innobase_buffer_pool_awe_mem_mb;
extern long innobase_file_io_threads, innobase_lock_wait_timeout;
extern long innobase_force_recovery;
extern long innobase_open_files;
extern char *innobase_data_home_dir, *innobase_data_file_path;
extern char *innobase_log_group_home_dir, *innobase_log_arch_dir;
extern char *innobase_unix_file_flush_method;
/* The following variables have to be my_bool for SHOW VARIABLES to work */
extern my_bool innobase_log_archive,
               innobase_use_doublewrite,
               innobase_use_checksums,
               innobase_use_large_pages,
               innobase_use_native_aio,
               innobase_file_per_table, innobase_locks_unsafe_for_binlog,
               innobase_create_status_file;
extern my_bool innobase_very_fast_shutdown; /* set this to 1 just before
                                            calling innobase_end() if you want
                                            InnoDB to shut down without
                                            flushing the buffer pool: this
                                            is equivalent to a 'crash' */
extern "C" {
extern ulong srv_max_buf_pool_modified_pct;
extern ulong srv_max_purge_lag;
extern ulong srv_auto_extend_increment;
extern ulong srv_n_spin_wait_rounds;
extern ulong srv_n_free_tickets_to_enter;
extern ulong srv_thread_sleep_delay;
extern ulong srv_thread_concurrency;
extern ulong srv_commit_concurrency;
}
#endif
#ifdef WITH_BERKELEY_STORAGE_ENGINE
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#ifndef HAVE_U_INT32_T
typedef unsigned int  u_int32_t;
#endif
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extern const u_int32_t bdb_DB_TXN_NOSYNC, bdb_DB_RECOVER, bdb_DB_PRIVATE,
                       bdb_DB_DIRECT_DB, bdb_DB_DIRECT_LOG;
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extern bool berkeley_shared_data;
extern u_int32_t berkeley_init_flags,berkeley_env_flags, berkeley_lock_type,
                 berkeley_lock_types[];
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extern ulong berkeley_max_lock, berkeley_log_buffer_size;
extern ulonglong berkeley_cache_size;
extern ulong berkeley_region_size, berkeley_cache_parts;
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extern char *berkeley_home, *berkeley_tmpdir, *berkeley_logdir;
extern long berkeley_lock_scan_time;
extern TYPELIB berkeley_lock_typelib;
#endif
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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const char *opt_ndbcluster_connectstring= 0;
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const char *opt_ndb_connectstring= 0;
char opt_ndb_constrbuf[1024];
unsigned opt_ndb_constrbuf_len= 0;
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my_bool	opt_ndb_shm, opt_ndb_optimized_node_selection;
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ulong opt_ndb_cache_check_time;
const char *opt_ndb_mgmd;
ulong opt_ndb_nodeid;
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extern SHOW_VAR ndb_status_variables[];
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extern const char *ndb_distribution_names[];
extern TYPELIB ndb_distribution_typelib;
extern const char *opt_ndb_distribution;
extern enum ndb_distribution opt_ndb_distribution_id;
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#endif
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my_bool opt_readonly, use_temp_pool, relay_log_purge;
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my_bool opt_sync_frm, opt_allow_suspicious_udfs;
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my_bool opt_secure_auth= 0;
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my_bool opt_log_slow_admin_statements= 0;
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my_bool lower_case_file_system= 0;
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my_bool opt_large_pages= 0;
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my_bool opt_myisam_use_mmap= 0;
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uint    opt_large_page_size= 0;
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my_bool opt_old_style_user_limits= 0, trust_function_creators= 0;
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/*
  True if there is at least one per-hour limit for some user, so we should
  check them before each query (and possibly reset counters when hour is
  changed). False otherwise.
*/
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volatile bool mqh_used = 0;
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my_bool opt_noacl;
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my_bool sp_automatic_privileges= 1;
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#ifdef HAVE_ROW_BASED_REPLICATION
/*
  This variable below serves as an optimization for (opt_binlog_format ==
  BF_ROW) as we need to do this test for every row. Stmt-based is default.
*/
my_bool binlog_row_based= FALSE;
ulong opt_binlog_rows_event_max_size;
const char *binlog_format_names[]= {"STATEMENT", "ROW", NullS};
/*
  Note that BF_UNSPECIFIED is last, after the end of binlog_format_names: it
  has no corresponding cell in this array. We use this value to be able to
  know if the user has explicitely specified a binlog format (then we require
  also --log-bin) or not (then we fall back to statement-based).
*/
enum binlog_format { BF_STMT= 0, BF_ROW= 1, BF_UNSPECIFIED= 2 };
#else
const my_bool binlog_row_based= FALSE;
const char *binlog_format_names[]= {"STATEMENT", NullS};
enum binlog_format { BF_STMT= 0, BF_UNSPECIFIED= 2 };
#endif

TYPELIB binlog_format_typelib=
  { array_elements(binlog_format_names)-1,"",
    binlog_format_names, NULL };
const char *opt_binlog_format= 0;
enum binlog_format opt_binlog_format_id= BF_UNSPECIFIED;

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#ifdef HAVE_INITGROUPS
static bool calling_initgroups= FALSE; /* Used in SIGSEGV handler. */
#endif
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uint mysqld_port, test_flags, select_errors, dropping_tables, ha_open_options;
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uint mysqld_port_timeout;
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uint delay_key_write_options, protocol_version;
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uint lower_case_table_names;
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uint tc_heuristic_recover= 0;
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uint volatile thread_count, thread_running;
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ulonglong thd_startup_options;
ulong back_log, connect_timeout, concurrency, server_id;
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ulong table_cache_size, table_def_size;
ulong thread_stack, what_to_log;
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ulong query_buff_size, slow_launch_time, slave_open_temp_tables;
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ulong open_files_limit, max_binlog_size, max_relay_log_size;
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ulong slave_net_timeout, slave_trans_retries;
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ulong thread_cache_size=0, binlog_cache_size=0, max_binlog_cache_size=0;
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ulong query_cache_size=0;
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ulong refresh_version, flush_version;	/* Increments on each reload */
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query_id_t query_id;
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ulong aborted_threads, aborted_connects;
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ulong delayed_insert_timeout, delayed_insert_limit, delayed_queue_size;
ulong delayed_insert_threads, delayed_insert_writes, delayed_rows_in_use;
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ulong delayed_insert_errors,flush_time;
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ulong specialflag=0;
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ulong binlog_cache_use= 0, binlog_cache_disk_use= 0;
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ulong max_connections, max_connect_errors;
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uint  max_user_connections= 0;
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ulong thread_id=1L,current_pid;
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ulong slow_launch_threads = 0, sync_binlog_period;
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ulong expire_logs_days = 0;
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ulong rpl_recovery_rank=0;

double log_10[32];			/* 10 potences */
time_t start_time;
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char mysql_home[FN_REFLEN], pidfile_name[FN_REFLEN], system_time_zone[30];
char *default_tz_name;
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char log_error_file[FN_REFLEN], glob_hostname[FN_REFLEN];
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char mysql_real_data_home[FN_REFLEN],
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     language[FN_REFLEN], reg_ext[FN_EXTLEN], mysql_charsets_dir[FN_REFLEN],
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     *opt_init_file, *opt_tc_log_file,
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     def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
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uint reg_ext_length;
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const key_map key_map_empty(0);
key_map key_map_full(0);                        // Will be initialized later

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const char *opt_date_time_formats[3];
519

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char *mysql_data_home= mysql_real_data_home;
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char server_version[SERVER_VERSION_LENGTH];
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char *mysqld_unix_port, *opt_mysql_tmpdir;
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const char **errmesg;			/* Error messages */
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const char *myisam_recover_options_str="OFF";
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const char *myisam_stats_method_str="nulls_unequal";
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/* name of reference on left espression in rewritten IN subquery */
const char *in_left_expr_name= "<left expr>";
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/* name of additional condition */
const char *in_additional_cond= "<IN COND>";
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my_decimal decimal_zero;
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/* classes for comparation parsing/processing */
Eq_creator eq_creator;
Ne_creator ne_creator;
Gt_creator gt_creator;
Lt_creator lt_creator;
Ge_creator ge_creator;
Le_creator le_creator;

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FILE *bootstrap_file;
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int bootstrap_error;
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FILE *stderror_file=0;
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I_List<THD> threads;
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I_List<NAMED_LIST> key_caches;
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Rpl_filter* rpl_filter;
Rpl_filter* binlog_filter;
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struct system_variables global_system_variables;
struct system_variables max_system_variables;
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struct system_status_var global_status_var;
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MY_TMPDIR mysql_tmpdir_list;
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MY_BITMAP temp_pool;
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CHARSET_INFO *system_charset_info, *files_charset_info ;
CHARSET_INFO *national_charset_info, *table_alias_charset;

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SHOW_COMP_OPTION have_row_based_replication;
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SHOW_COMP_OPTION have_raid, have_openssl, have_symlink, have_query_cache;
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SHOW_COMP_OPTION have_geometry, have_rtree_keys;
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SHOW_COMP_OPTION have_crypt, have_compress;

/* Thread specific variables */
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pthread_key(MEM_ROOT**,THR_MALLOC);
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pthread_key(THD*, THR_THD);
pthread_mutex_t LOCK_mysql_create_db, LOCK_Acl, LOCK_open, LOCK_thread_count,
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		LOCK_mapped_file, LOCK_status, LOCK_global_read_lock,
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		LOCK_error_log, LOCK_uuid_generator,
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		LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create,
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		LOCK_crypt, LOCK_bytes_sent, LOCK_bytes_received,
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	        LOCK_global_system_variables,
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		LOCK_user_conn, LOCK_slave_list, LOCK_active_mi;
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#ifdef HAVE_OPENSSL
pthread_mutex_t LOCK_des_key_file;
#endif
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rw_lock_t	LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
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pthread_cond_t COND_refresh,COND_thread_count;
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pthread_t signal_thread;
pthread_attr_t connection_attrib;
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pthread_mutex_t  LOCK_server_started;
pthread_cond_t  COND_server_started;

int mysqld_server_started= 0;
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File_parser_dummy_hook file_parser_dummy_hook;

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/* replication parameters, if master_host is not NULL, we are a slave */
uint master_port= MYSQL_PORT, master_connect_retry = 60;
uint report_port= MYSQL_PORT;
ulong master_retry_count=0;
char *master_user, *master_password, *master_host, *master_info_file;
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char *relay_log_info_file, *report_user, *report_password, *report_host;
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char *opt_relay_logname = 0, *opt_relaylog_index_name=0;
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my_bool master_ssl;
char *master_ssl_key, *master_ssl_cert;
char *master_ssl_ca, *master_ssl_capath, *master_ssl_cipher;
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/* Static variables */

static bool kill_in_progress, segfaulted;
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static my_bool opt_do_pstack, opt_bootstrap, opt_myisam_log;
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static int cleanup_done;
static ulong opt_specialflag, opt_myisam_block_size;
static char *opt_logname, *opt_update_logname, *opt_binlog_index_name;
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static char *opt_slow_logname, *opt_tc_heuristic_recover;
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static char *mysql_home_ptr, *pidfile_name_ptr;
static char **defaults_argv;
static char *opt_bin_logname;

static my_socket unix_sock,ip_sock;
static pthread_t select_thread;
struct rand_struct sql_rand; // used by sql_class.cc:THD::THD()

/* OS specific variables */

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#ifdef __WIN__
#undef	 getpid
#include <process.h>
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static pthread_cond_t COND_handler_count;
static uint handler_count;
static bool start_mode=0, use_opt_args;
static int opt_argc;
static char **opt_argv;

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#if !defined(EMBEDDED_LIBRARY)
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static HANDLE hEventShutdown;
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static char shutdown_event_name[40];
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#include "nt_servc.h"
static	 NTService  Service;	      // Service object for WinNT
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#endif /* EMBEDDED_LIBRARY */
#endif /* __WIN__ */

#ifdef __NT__
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static char pipe_name[512];
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static SECURITY_ATTRIBUTES saPipeSecurity;
static SECURITY_DESCRIPTOR sdPipeDescriptor;
static HANDLE hPipe = INVALID_HANDLE_VALUE;
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#endif
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#ifdef OS2
pthread_cond_t eventShutdown;
#endif

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#ifndef EMBEDDED_LIBRARY
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bool mysqld_embedded=0;
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#else
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bool mysqld_embedded=1;
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#endif

#ifndef DBUG_OFF
static const char* default_dbug_option;
#endif
#ifdef HAVE_LIBWRAP
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const char *libwrapName= NULL;
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#endif
#ifdef HAVE_QUERY_CACHE
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static ulong query_cache_limit= 0;
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ulong query_cache_min_res_unit= QUERY_CACHE_MIN_RESULT_DATA_SIZE;
Query_cache query_cache;
#endif
#ifdef HAVE_SMEM
char *shared_memory_base_name= default_shared_memory_base_name;
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my_bool opt_enable_shared_memory;
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HANDLE smem_event_connect_request= 0;
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#endif

#include "sslopt-vars.h"
#ifdef HAVE_OPENSSL
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#include <openssl/crypto.h>
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#ifndef HAVE_YASSL
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typedef struct CRYPTO_dynlock_value
{
  rw_lock_t lock;
} openssl_lock_t;

static openssl_lock_t *openssl_stdlocks;
static openssl_lock_t *openssl_dynlock_create(const char *, int);
static void openssl_dynlock_destroy(openssl_lock_t *, const char *, int);
static void openssl_lock_function(int, int, const char *, int);
static void openssl_lock(int, openssl_lock_t *, const char *, int);
static unsigned long openssl_id_function();
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#endif
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char *des_key_file;
struct st_VioSSLAcceptorFd *ssl_acceptor_fd;
#endif /* HAVE_OPENSSL */


/* Function declarations */

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static void start_signal_handler(void);
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pthread_handler_t signal_hand(void *arg);
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static void mysql_init_variables(void);
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static void get_options(int argc,char **argv);
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static void set_server_version(void);
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static int init_thread_environment();
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static char *get_relative_path(const char *path);
static void fix_paths(void);
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pthread_handler_t handle_connections_sockets(void *arg);
pthread_handler_t kill_server_thread(void *arg);
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static void bootstrap(FILE *file);
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static void close_server_sock();
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static bool read_init_file(char *file_name);
#ifdef __NT__
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pthread_handler_t handle_connections_namedpipes(void *arg);
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#endif
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#ifdef HAVE_SMEM
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pthread_handler_t handle_connections_shared_memory(void *arg);
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#endif
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pthread_handler_t handle_slave(void *arg);
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static ulong find_bit_type(const char *x, TYPELIB *bit_lib);
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static void clean_up(bool print_message);
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static void clean_up_mutexes(void);
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static void wait_for_signal_thread_to_end(void);
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static int test_if_case_insensitive(const char *dir_name);
static void create_pid_file();
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#ifndef EMBEDDED_LIBRARY
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/****************************************************************************
** Code to end mysqld
****************************************************************************/

static void close_connections(void)
{
#ifdef EXTRA_DEBUG
  int count=0;
#endif
  DBUG_ENTER("close_connections");

  /* Clear thread cache */
  kill_cached_threads++;
  flush_thread_cache();

  /* kill flush thread */
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  (void) pthread_mutex_lock(&LOCK_manager);
  if (manager_thread_in_use)
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  {
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    DBUG_PRINT("quit",("killing manager thread: 0x%lx",manager_thread));
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   (void) pthread_cond_signal(&COND_manager);
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  }
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  (void) pthread_mutex_unlock(&LOCK_manager);
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  /* kill connection thread */
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#if !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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  DBUG_PRINT("quit",("waiting for select thread: 0x%lx",select_thread));
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  (void) pthread_mutex_lock(&LOCK_thread_count);

  while (select_thread_in_use)
  {
    struct timespec abstime;
    int error;
    LINT_INIT(error);
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    DBUG_PRINT("info",("Waiting for select thread"));
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#ifndef DONT_USE_THR_ALARM
    if (pthread_kill(select_thread,THR_CLIENT_ALARM))
      break;					// allready dead
#endif
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    set_timespec(abstime, 2);
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    for (uint tmp=0 ; tmp < 10 && select_thread_in_use; tmp++)
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    {
      error=pthread_cond_timedwait(&COND_thread_count,&LOCK_thread_count,
				   &abstime);
      if (error != EINTR)
	break;
    }
#ifdef EXTRA_DEBUG
    if (error != 0 && !count++)
      sql_print_error("Got error %d from pthread_cond_timedwait",error);
#endif
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    close_server_sock();
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  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);
#endif /* __WIN__ */


  /* Abort listening to new connections */
  DBUG_PRINT("quit",("Closing sockets"));
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  if (!opt_disable_networking )
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  {
    if (ip_sock != INVALID_SOCKET)
    {
      (void) shutdown(ip_sock,2);
      (void) closesocket(ip_sock);
      ip_sock= INVALID_SOCKET;
    }
  }
#ifdef __NT__
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  if (hPipe != INVALID_HANDLE_VALUE && opt_enable_named_pipe)
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  {
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    HANDLE temp;
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    DBUG_PRINT("quit", ("Closing named pipes") );
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    /* Create connection to the handle named pipe handler to break the loop */
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    if ((temp = CreateFile(pipe_name,
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			   GENERIC_READ | GENERIC_WRITE,
			   0,
			   NULL,
			   OPEN_EXISTING,
			   0,
			   NULL )) != INVALID_HANDLE_VALUE)
    {
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      WaitNamedPipe(pipe_name, 1000);
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      DWORD dwMode = PIPE_READMODE_BYTE | PIPE_WAIT;
      SetNamedPipeHandleState(temp, &dwMode, NULL, NULL);
      CancelIo(temp);
      DisconnectNamedPipe(temp);
      CloseHandle(temp);
    }
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  }
#endif
#ifdef HAVE_SYS_UN_H
  if (unix_sock != INVALID_SOCKET)
  {
    (void) shutdown(unix_sock,2);
    (void) closesocket(unix_sock);
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    (void) unlink(mysqld_unix_port);
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    unix_sock= INVALID_SOCKET;
  }
#endif
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  end_thr_alarm(0);			 // Abort old alarms.
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  /*
    First signal all threads that it's time to die
    This will give the threads some time to gracefully abort their
    statements and inform their clients that the server is about to die.
  */
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  THD *tmp;
  (void) pthread_mutex_lock(&LOCK_thread_count); // For unlink from list

  I_List_iterator<THD> it(threads);
  while ((tmp=it++))
  {
    DBUG_PRINT("quit",("Informing thread %ld that it's time to die",
		       tmp->thread_id));
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    /* We skip slave threads on this first loop through. */
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    if (tmp->slave_thread)
      continue;
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    tmp->killed= THD::KILL_CONNECTION;
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    if (tmp->mysys_var)
    {
      tmp->mysys_var->abort=1;
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      pthread_mutex_lock(&tmp->mysys_var->mutex);
      if (tmp->mysys_var->current_cond)
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      {
	pthread_mutex_lock(tmp->mysys_var->current_mutex);
	pthread_cond_broadcast(tmp->mysys_var->current_cond);
	pthread_mutex_unlock(tmp->mysys_var->current_mutex);
      }
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      pthread_mutex_unlock(&tmp->mysys_var->mutex);
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    }
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count); // For unlink from list

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  end_slave();

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  if (thread_count)
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    sleep(2);					// Give threads time to die
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  /*
    Force remaining threads to die by closing the connection to the client
    This will ensure that threads that are waiting for a command from the
    client on a blocking read call are aborted.
  */
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  for (;;)
  {
    DBUG_PRINT("quit",("Locking LOCK_thread_count"));
    (void) pthread_mutex_lock(&LOCK_thread_count); // For unlink from list
    if (!(tmp=threads.get()))
    {
      DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
      (void) pthread_mutex_unlock(&LOCK_thread_count);
      break;
    }
#ifndef __bsdi__				// Bug in BSDI kernel
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    if (tmp->vio_ok())
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    {
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      if (global_system_variables.log_warnings)
        sql_print_warning(ER(ER_FORCING_CLOSE),my_progname,
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                          tmp->thread_id,
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                          (tmp->main_security_ctx.user ?
                           tmp->main_security_ctx.user : ""));
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      close_connection(tmp,0,0);
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    }
#endif
    DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
    (void) pthread_mutex_unlock(&LOCK_thread_count);
  }
  /* All threads has now been aborted */
  DBUG_PRINT("quit",("Waiting for threads to die (count=%u)",thread_count));
  (void) pthread_mutex_lock(&LOCK_thread_count);
  while (thread_count)
  {
    (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);

  DBUG_PRINT("quit",("close_connections thread"));
  DBUG_VOID_RETURN;
}
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#endif /*EMBEDDED_LIBRARY*/
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static void close_server_sock()
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{
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#ifdef HAVE_CLOSE_SERVER_SOCK
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  DBUG_ENTER("close_server_sock");
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  my_socket tmp_sock;
  tmp_sock=ip_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
    ip_sock=INVALID_SOCKET;
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    DBUG_PRINT("info",("calling shutdown on TCP/IP socket"));
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    VOID(shutdown(tmp_sock,2));
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#if defined(__NETWARE__)
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    /*
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      The following code is disabled for normal systems as it causes MySQL
      to hang on AIX 4.3 during shutdown
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    */
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    DBUG_PRINT("info",("calling closesocket on TCP/IP socket"));
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    VOID(closesocket(tmp_sock));
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#endif
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  }
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  tmp_sock=unix_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
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    unix_sock=INVALID_SOCKET;
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    DBUG_PRINT("info",("calling shutdown on unix socket"));
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    VOID(shutdown(tmp_sock,2));
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#if defined(__NETWARE__)
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    /*
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      The following code is disabled for normal systems as it may cause MySQL
      to hang on AIX 4.3 during shutdown
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    */
    DBUG_PRINT("info",("calling closesocket on unix/IP socket"));
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    VOID(closesocket(tmp_sock));
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#endif
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    VOID(unlink(mysqld_unix_port));
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  }
  DBUG_VOID_RETURN;
#endif
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}
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void kill_mysql(void)
{
  DBUG_ENTER("kill_mysql");

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#ifdef SIGNALS_DONT_BREAK_READ
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  abort_loop=1;					// Break connection loops
  close_server_sock();				// Force accept to wake up
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#endif
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#if defined(__WIN__)
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#if !defined(EMBEDDED_LIBRARY)
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  {
    if (!SetEvent(hEventShutdown))
    {
      DBUG_PRINT("error",("Got error: %ld from SetEvent",GetLastError()));
    }
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    /*
      or:
      HANDLE hEvent=OpenEvent(0, FALSE, "MySqlShutdown");
      SetEvent(hEventShutdown);
      CloseHandle(hEvent);
    */
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  }
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#endif
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#elif defined(OS2)
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  pthread_cond_signal(&eventShutdown);		// post semaphore
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#elif defined(HAVE_PTHREAD_KILL)
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  if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL))
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  {
    DBUG_PRINT("error",("Got error %d from pthread_kill",errno)); /* purecov: inspected */
  }
#elif !defined(SIGNALS_DONT_BREAK_READ)
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  kill(current_pid, MYSQL_KILL_SIGNAL);
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#endif
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  DBUG_PRINT("quit",("After pthread_kill"));
  shutdown_in_progress=1;			// Safety if kill didn't work
#ifdef SIGNALS_DONT_BREAK_READ
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  if (!kill_in_progress)
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  {
    pthread_t tmp;
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    abort_loop=1;
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    if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
			   (void*) 0))
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      sql_print_error("Can't create thread to kill server");
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  }
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#endif
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  DBUG_VOID_RETURN;
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}

	/* Force server down. kill all connections and threads and exit */

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#if defined(OS2) || defined(__NETWARE__)
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extern "C" void kill_server(int sig_ptr)
1004
#define RETURN_FROM_KILL_SERVER DBUG_VOID_RETURN
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#elif !defined(__WIN__)
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static void *kill_server(void *sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_RETURN(0)
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#else
static void __cdecl kill_server(int sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_VOID_RETURN
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#endif
{
  DBUG_ENTER("kill_server");
1014
#ifndef EMBEDDED_LIBRARY
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  int sig=(int) (long) sig_ptr;			// This is passed a int
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  // if there is a signal during the kill in progress, ignore the other
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  if (kill_in_progress)				// Safety
    RETURN_FROM_KILL_SERVER;
  kill_in_progress=TRUE;
  abort_loop=1;					// This should be set
1021
  my_sigset(sig,SIG_IGN);
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  if (sig == MYSQL_KILL_SIGNAL || sig == 0)
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    sql_print_information(ER(ER_NORMAL_SHUTDOWN),my_progname);
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  else
    sql_print_error(ER(ER_GOT_SIGNAL),my_progname,sig); /* purecov: inspected */

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#if defined(HAVE_SMEM) && defined(__WIN__)    
  /*    
   Send event to smem_event_connect_request for aborting    
   */    
  if (!SetEvent(smem_event_connect_request))    
  {      
	  DBUG_PRINT("error",
		("Got error: %ld from SetEvent of smem_event_connect_request",
		 GetLastError()));    
  }
#endif  
  
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#if defined(__NETWARE__) || (defined(USE_ONE_SIGNAL_HAND) && !defined(__WIN__) && !defined(OS2))
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  my_thread_init();				// If this is a new thread
#endif
  close_connections();
  if (sig != MYSQL_KILL_SIGNAL && sig != 0)
    unireg_abort(1);				/* purecov: inspected */
  else
1046
    unireg_end();
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#ifdef __NETWARE__
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  if (!event_flag)
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    pthread_join(select_thread, NULL);		// wait for main thread
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#endif /* __NETWARE__ */
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  pthread_exit(0);				/* purecov: deadcode */
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#endif /* EMBEDDED_LIBRARY */
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  RETURN_FROM_KILL_SERVER;
}


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#if defined(USE_ONE_SIGNAL_HAND) || (defined(__NETWARE__) && defined(SIGNALS_DONT_BREAK_READ))
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pthread_handler_t kill_server_thread(void *arg __attribute__((unused)))
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{
  my_thread_init();				// Initialize new thread
  kill_server(0);
  my_thread_end();				// Normally never reached
  return 0;
}
#endif

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extern "C" sig_handler print_signal_warning(int sig)
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{
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  if (!DBUG_IN_USE)
  {
    if (global_system_variables.log_warnings)
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      sql_print_warning("Got signal %d from thread %d",
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		      sig,my_thread_id());
  }
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#ifdef DONT_REMEMBER_SIGNAL
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  my_sigset(sig,print_signal_warning);		/* int. thread system calls */
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#endif
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#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
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  if (sig == SIGALRM)
    alarm(2);					/* reschedule alarm */
#endif
}

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/*
  cleanup all memory and end program nicely
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  SYNOPSIS
    unireg_end()

  NOTES
    This function never returns.
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    If SIGNALS_DONT_BREAK_READ is defined, this function is called
    by the main thread. To get MySQL to shut down nicely in this case
    (Mac OS X) we have to call exit() instead if pthread_exit().
*/
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#ifndef EMBEDDED_LIBRARY
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void unireg_end(void)
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{
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  clean_up(1);
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  my_thread_end();
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#if defined(SIGNALS_DONT_BREAK_READ) && !defined(__NETWARE__)
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  exit(0);
#else
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  pthread_exit(0);				// Exit is in main thread
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#endif
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}

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extern "C" void unireg_abort(int exit_code)
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{
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  DBUG_ENTER("unireg_abort");
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  if (exit_code)
    sql_print_error("Aborting\n");
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  clean_up(exit_code || !opt_bootstrap); /* purecov: inspected */
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  DBUG_PRINT("quit",("done with cleanup in unireg_abort"));
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  wait_for_signal_thread_to_end();
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  clean_up_mutexes();
  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
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  exit(exit_code); /* purecov: inspected */
}
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#endif
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void clean_up(bool print_message)
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{
  DBUG_PRINT("exit",("clean_up"));
  if (cleanup_done++)
    return; /* purecov: inspected */
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  mysql_log.cleanup();
  mysql_slow_log.cleanup();
  mysql_bin_log.cleanup();

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#ifdef HAVE_REPLICATION
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  if (use_slave_mask)
    bitmap_free(&slave_error_mask);
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#endif
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  my_tz_free();
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  my_dbopt_free();
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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  acl_free(1);
  grant_free();
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#endif
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  query_cache_destroy();
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  table_cache_free();
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  table_def_free();
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  hostname_cache_free();
  item_user_lock_free();
  lex_free();				/* Free some memory */
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  set_var_free();
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  free_charsets();
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  (void) ha_panic(HA_PANIC_CLOSE);	/* close all tables and logs */
1157
#ifdef HAVE_DLOPEN
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  if (!opt_noacl)
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  {
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    udf_free();
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  }
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#endif
  plugin_free();
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  if (tc_log)
    tc_log->close();
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  xid_cache_free();
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  delete_elements(&key_caches, (void (*)(const char*, gptr)) free_key_cache);
  multi_keycache_free();
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  free_status_vars();
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  end_thr_alarm(1);			/* Free allocated memory */
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#ifdef USE_RAID
  end_raid();
#endif
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  my_free_open_file_info();
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  my_free((char*) global_system_variables.date_format,
	  MYF(MY_ALLOW_ZERO_PTR));
  my_free((char*) global_system_variables.time_format,
	  MYF(MY_ALLOW_ZERO_PTR));
  my_free((char*) global_system_variables.datetime_format,
	  MYF(MY_ALLOW_ZERO_PTR));
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  if (defaults_argv)
    free_defaults(defaults_argv);
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  my_free(sys_init_connect.value, MYF(MY_ALLOW_ZERO_PTR));
  my_free(sys_init_slave.value, MYF(MY_ALLOW_ZERO_PTR));
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  free_tmpdir(&mysql_tmpdir_list);
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#ifdef HAVE_REPLICATION
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  my_free(slave_load_tmpdir,MYF(MY_ALLOW_ZERO_PTR));
1188
#endif
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  x_free(opt_bin_logname);
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  x_free(opt_relay_logname);
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  bitmap_free(&temp_pool);
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  free_max_user_conn();
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#ifdef HAVE_REPLICATION
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  end_slave_list();
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#endif
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  delete binlog_filter;
  delete rpl_filter;
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#ifdef HAVE_OPENSSL
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  if (ssl_acceptor_fd)
    my_free((gptr) ssl_acceptor_fd, MYF(MY_ALLOW_ZERO_PTR));
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#endif /* HAVE_OPENSSL */
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#ifdef USE_REGEX
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  my_regex_end();
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#endif
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  if (print_message && errmesg)
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    sql_print_information(ER(ER_SHUTDOWN_COMPLETE),my_progname);
1208
#if !defined(EMBEDDED_LIBRARY)
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  if (!opt_bootstrap)
    (void) my_delete(pidfile_name,MYF(0));	// This may not always exist
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#endif
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  finish_client_errs();
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  my_free((gptr) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST),
          MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR));
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  DBUG_PRINT("quit", ("Error messages freed"));
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  /* Tell main we are ready */
  (void) pthread_mutex_lock(&LOCK_thread_count);
1218
  DBUG_PRINT("quit", ("got thread count lock"));
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  ready_to_exit=1;
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  /* do the broadcast inside the lock to ensure that my_end() is not called */
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  (void) pthread_cond_broadcast(&COND_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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  /*
    The following lines may never be executed as the main thread may have
    killed us
  */
1227
  DBUG_PRINT("quit", ("done with cleanup"));
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} /* clean_up */


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/*
  This is mainly needed when running with purify, but it's still nice to
  know that all child threads have died when mysqld exits
*/

static void wait_for_signal_thread_to_end()
{
#ifndef __NETWARE__
  uint i;
  /*
    Wait up to 10 seconds for signal thread to die. We use this mainly to
    avoid getting warnings that my_thread_end has not been called
  */
  for (i= 0 ; i < 100 && signal_thread_in_use; i++)
  {
    if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL))
      break;
    my_sleep(100);				// Give it time to die
  }
#endif
}


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static void clean_up_mutexes()
{
  (void) pthread_mutex_destroy(&LOCK_mysql_create_db);
  (void) pthread_mutex_destroy(&LOCK_Acl);
1258
  (void) rwlock_destroy(&LOCK_grant);
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  (void) pthread_mutex_destroy(&LOCK_open);
  (void) pthread_mutex_destroy(&LOCK_thread_count);
  (void) pthread_mutex_destroy(&LOCK_mapped_file);
  (void) pthread_mutex_destroy(&LOCK_status);
  (void) pthread_mutex_destroy(&LOCK_error_log);
  (void) pthread_mutex_destroy(&LOCK_delayed_insert);
  (void) pthread_mutex_destroy(&LOCK_delayed_status);
  (void) pthread_mutex_destroy(&LOCK_delayed_create);
  (void) pthread_mutex_destroy(&LOCK_manager);
  (void) pthread_mutex_destroy(&LOCK_crypt);
  (void) pthread_mutex_destroy(&LOCK_bytes_sent);
  (void) pthread_mutex_destroy(&LOCK_bytes_received);
  (void) pthread_mutex_destroy(&LOCK_user_conn);
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#ifdef HAVE_OPENSSL
  (void) pthread_mutex_destroy(&LOCK_des_key_file);
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#ifndef HAVE_YASSL
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  for (int i= 0; i < CRYPTO_num_locks(); ++i)
    (void) rwlock_destroy(&openssl_stdlocks[i].lock);
  OPENSSL_free(openssl_stdlocks);
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#endif
#endif
1280
#ifdef HAVE_REPLICATION
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  (void) pthread_mutex_destroy(&LOCK_rpl_status);
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  (void) pthread_cond_destroy(&COND_rpl_status);
#endif
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  (void) pthread_mutex_destroy(&LOCK_active_mi);
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  (void) rwlock_destroy(&LOCK_sys_init_connect);
  (void) rwlock_destroy(&LOCK_sys_init_slave);
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  (void) pthread_mutex_destroy(&LOCK_global_system_variables);
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  (void) pthread_mutex_destroy(&LOCK_global_read_lock);
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  (void) pthread_mutex_destroy(&LOCK_uuid_generator);
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  (void) pthread_cond_destroy(&COND_thread_count);
  (void) pthread_cond_destroy(&COND_refresh);
  (void) pthread_cond_destroy(&COND_thread_cache);
  (void) pthread_cond_destroy(&COND_flush_thread_cache);
  (void) pthread_cond_destroy(&COND_manager);
}
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/****************************************************************************
** Init IP and UNIX socket
****************************************************************************/

static void set_ports()
{
  char	*env;
1304
  if (!mysqld_port && !opt_disable_networking)
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  {					// Get port if not from commandline
    struct  servent *serv_ptr;
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    mysqld_port= MYSQL_PORT;
    if ((serv_ptr= getservbyname("mysql", "tcp")))
      mysqld_port= ntohs((u_short) serv_ptr->s_port); /* purecov: inspected */
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    if ((env = getenv("MYSQL_TCP_PORT")))
1311
      mysqld_port= (uint) atoi(env);		/* purecov: inspected */
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  }
1313
  if (!mysqld_unix_port)
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  {
#ifdef __WIN__
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    mysqld_unix_port= (char*) MYSQL_NAMEDPIPE;
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#else
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    mysqld_unix_port= (char*) MYSQL_UNIX_ADDR;
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#endif
    if ((env = getenv("MYSQL_UNIX_PORT")))
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      mysqld_unix_port= env;			/* purecov: inspected */
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  }
}

1325
#ifndef EMBEDDED_LIBRARY
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/* Change to run as another user if started with --user */

1328
static struct passwd *check_user(const char *user)
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{
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#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
1331
  struct passwd *user_info;
1332
  uid_t user_id= geteuid();
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  // Don't bother if we aren't superuser
1335
  if (user_id)
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  {
    if (user)
1338
    {
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      // Don't give a warning, if real user is same as given with --user
      user_info= getpwnam(user);
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      if ((!user_info || user_id != user_info->pw_uid) &&
	  global_system_variables.log_warnings)
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        sql_print_warning(
                    "One can only use the --user switch if running as root\n");
1345
    }
1346
    return NULL;
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  }
1348
  if (!user)
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  {
    if (!opt_bootstrap)
    {
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      sql_print_error("Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n");
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      unireg_abort(1);
    }
1355
    return NULL;
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  }
  if (!strcmp(user,"root"))
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    return NULL;                        // Avoid problem with dynamic libraries
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1360
  if (!(user_info= getpwnam(user)))
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  {
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    // Allow a numeric uid to be used
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    const char *pos;
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    for (pos= user; my_isdigit(mysqld_charset,*pos); pos++) ;
    if (*pos)                                   // Not numeric id
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      goto err;
    if (!(user_info= getpwuid(atoi(user))))
      goto err;
    else
      return user_info;
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  }
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  else
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    return user_info;

err:
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  sql_print_error("Fatal error: Can't change to run as user '%s' ;  Please check that the user exists!\n",user);
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  unireg_abort(1);
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#endif
  return NULL;
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}

static void set_user(const char *user, struct passwd *user_info)
{
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
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  DBUG_ASSERT(user_info != 0);
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#ifdef HAVE_INITGROUPS
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  /*
    We can get a SIGSEGV when calling initgroups() on some systems when NSS
    is configured to use LDAP and the server is statically linked.  We set
    calling_initgroups as a flag to the SIGSEGV handler that is then used to
    output a specific message to help the user resolve this problem.
  */
  calling_initgroups= TRUE;
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  initgroups((char*) user, user_info->pw_gid);
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  calling_initgroups= FALSE;
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#endif
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  if (setgid(user_info->pw_gid) == -1)
  {
    sql_perror("setgid");
    unireg_abort(1);
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  }
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  if (setuid(user_info->pw_uid) == -1)
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  {
    sql_perror("setuid");
    unireg_abort(1);
  }
#endif
}

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static void set_effective_user(struct passwd *user_info)
{
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
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  DBUG_ASSERT(user_info != 0);
1415
  if (setregid((gid_t)-1, user_info->pw_gid) == -1)
1416
  {
1417
    sql_perror("setregid");
1418
    unireg_abort(1);
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  }
1420
  if (setreuid((uid_t)-1, user_info->pw_uid) == -1)
1421
  {
1422
    sql_perror("setreuid");
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    unireg_abort(1);
  }
#endif
}


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/* Change root user if started with  --chroot */

static void set_root(const char *path)
{
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#if !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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  if (chroot(path) == -1)
  {
    sql_perror("chroot");
    unireg_abort(1);
  }
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  my_setwd("/", MYF(0));
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#endif
}

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static void network_init(void)
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{
  struct sockaddr_in	IPaddr;
#ifdef HAVE_SYS_UN_H
  struct sockaddr_un	UNIXaddr;
#endif
  int	arg=1;
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  int   ret;
  uint  waited;
  uint  this_wait;
  uint  retry;
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  DBUG_ENTER("network_init");
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  LINT_INIT(ret);
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  set_ports();

1459
  if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap)
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  {
1461
    DBUG_PRINT("general",("IP Socket is %d",mysqld_port));
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    ip_sock = socket(AF_INET, SOCK_STREAM, 0);
    if (ip_sock == INVALID_SOCKET)
    {
      DBUG_PRINT("error",("Got error: %d from socket()",socket_errno));
      sql_perror(ER(ER_IPSOCK_ERROR));		/* purecov: tested */
      unireg_abort(1);				/* purecov: tested */
    }
    bzero((char*) &IPaddr, sizeof(IPaddr));
    IPaddr.sin_family = AF_INET;
    IPaddr.sin_addr.s_addr = my_bind_addr;
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    IPaddr.sin_port = (unsigned short) htons((unsigned short) mysqld_port);
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#ifndef __WIN__
    /*
      We should not use SO_REUSEADDR on windows as this would enable a
      user to open two mysqld servers with the same TCP/IP port.
    */
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    (void) setsockopt(ip_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,sizeof(arg));
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#endif /* __WIN__ */
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    /*
      Sometimes the port is not released fast enough when stopping and
      restarting the server. This happens quite often with the test suite
      on busy Linux systems. Retry to bind the address at these intervals:
      Sleep intervals: 1, 2, 4,  6,  9, 13, 17, 22, ...
      Retry at second: 1, 3, 7, 13, 22, 35, 52, 74, ...
      Limit the sequence by mysqld_port_timeout (set --port-open-timeout=#).
    */
    for (waited= 0, retry= 1; ; retry++, waited+= this_wait)
    {
      if (((ret= bind(ip_sock, my_reinterpret_cast(struct sockaddr *) (&IPaddr),
                      sizeof(IPaddr))) >= 0) ||
          (socket_errno != EADDRINUSE) ||
          (waited >= mysqld_port_timeout))
        break;
      sql_print_information("Retrying bind on TCP/IP port %u", mysqld_port);
      this_wait= retry * retry / 3 + 1;
      sleep(this_wait);
    }
    if (ret < 0)
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    {
      DBUG_PRINT("error",("Got error: %d from bind",socket_errno));
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      sql_perror("Can't start server: Bind on TCP/IP port");
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      sql_print_error("Do you already have another mysqld server running on port: %d ?",mysqld_port);
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      unireg_abort(1);
    }
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    if (listen(ip_sock,(int) back_log) < 0)
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    {
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      sql_perror("Can't start server: listen() on TCP/IP port");
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      sql_print_error("listen() on TCP/IP failed with error %d",
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		      socket_errno);
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      unireg_abort(1);
    }
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  }
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#ifdef __NT__
  /* create named pipe */
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  if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap &&
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      opt_enable_named_pipe)
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  {
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    pipe_name[sizeof(pipe_name)-1]= 0;		/* Safety if too long string */
    strxnmov(pipe_name, sizeof(pipe_name)-1, "\\\\.\\pipe\\",
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	     mysqld_unix_port, NullS);
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    bzero((char*) &saPipeSecurity, sizeof(saPipeSecurity));
    bzero((char*) &sdPipeDescriptor, sizeof(sdPipeDescriptor));
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    if (!InitializeSecurityDescriptor(&sdPipeDescriptor,
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				      SECURITY_DESCRIPTOR_REVISION))
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    {
      sql_perror("Can't start server : Initialize security descriptor");
      unireg_abort(1);
    }
    if (!SetSecurityDescriptorDacl(&sdPipeDescriptor, TRUE, NULL, FALSE))
    {
      sql_perror("Can't start server : Set security descriptor");
      unireg_abort(1);
    }
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    saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES);
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    saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor;
    saPipeSecurity.bInheritHandle = FALSE;
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    if ((hPipe= CreateNamedPipe(pipe_name,
				PIPE_ACCESS_DUPLEX,
				PIPE_TYPE_BYTE |
				PIPE_READMODE_BYTE |
				PIPE_WAIT,
				PIPE_UNLIMITED_INSTANCES,
				(int) global_system_variables.net_buffer_length,
				(int) global_system_variables.net_buffer_length,
				NMPWAIT_USE_DEFAULT_WAIT,
				&saPipeSecurity)) == INVALID_HANDLE_VALUE)
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      {
	LPVOID lpMsgBuf;
	int error=GetLastError();
	FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
		      FORMAT_MESSAGE_FROM_SYSTEM,
		      NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		      (LPTSTR) &lpMsgBuf, 0, NULL );
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	MessageBox(NULL, (LPTSTR) lpMsgBuf, "Error from CreateNamedPipe",
		    MB_OK|MB_ICONINFORMATION);
	LocalFree(lpMsgBuf);
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	unireg_abort(1);
      }
  }
#endif

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#if defined(HAVE_SYS_UN_H)
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  /*
  ** Create the UNIX socket
  */
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  if (mysqld_unix_port[0] && !opt_bootstrap)
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  {
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    DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port));
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    if (strlen(mysqld_unix_port) > (sizeof(UNIXaddr.sun_path) - 1))
    {
      sql_print_error("The socket file path is too long (> %d): %s",
                    sizeof(UNIXaddr.sun_path) - 1, mysqld_unix_port);
      unireg_abort(1);
    }
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    if ((unix_sock= socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
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    {
      sql_perror("Can't start server : UNIX Socket "); /* purecov: inspected */
      unireg_abort(1);				/* purecov: inspected */
    }
    bzero((char*) &UNIXaddr, sizeof(UNIXaddr));
    UNIXaddr.sun_family = AF_UNIX;
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    strmov(UNIXaddr.sun_path, mysqld_unix_port);
    (void) unlink(mysqld_unix_port);
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    (void) setsockopt(unix_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,
		      sizeof(arg));
    umask(0);
    if (bind(unix_sock, my_reinterpret_cast(struct sockaddr *) (&UNIXaddr),
	     sizeof(UNIXaddr)) < 0)
    {
      sql_perror("Can't start server : Bind on unix socket"); /* purecov: tested */
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      sql_print_error("Do you already have another mysqld server running on socket: %s ?",mysqld_unix_port);
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      unireg_abort(1);					/* purecov: tested */
    }
    umask(((~my_umask) & 0666));
#if defined(S_IFSOCK) && defined(SECURE_SOCKETS)
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    (void) chmod(mysqld_unix_port,S_IFSOCK);	/* Fix solaris 2.6 bug */
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#endif
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    if (listen(unix_sock,(int) back_log) < 0)
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      sql_print_warning("listen() on Unix socket failed with error %d",
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		      socket_errno);
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  }
#endif
  DBUG_PRINT("info",("server started"));
  DBUG_VOID_RETURN;
}

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#endif /*!EMBEDDED_LIBRARY*/
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void yyerror(const char *s)
{
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  THD *thd=current_thd;
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  char *yytext= (char*) thd->lex->tok_start;
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  /* "parse error" changed into "syntax error" between bison 1.75 and 1.875 */
  if (strcmp(s,"parse error") == 0 || strcmp(s,"syntax error") == 0)
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    s=ER(ER_SYNTAX_ERROR);
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  my_printf_error(ER_PARSE_ERROR,  ER(ER_PARSE_ERROR), MYF(0), s,
                  (yytext ? (char*) yytext : ""),
                  thd->lex->yylineno);
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}

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#ifndef EMBEDDED_LIBRARY
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/*
  Close a connection

  SYNOPSIS
    close_connection()
    thd		Thread handle
    errcode	Error code to print to console
    lock	1 if we have have to lock LOCK_thread_count

  NOTES
    For the connection that is doing shutdown, this is called twice
*/

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void close_connection(THD *thd, uint errcode, bool lock)
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{
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  st_vio *vio;
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  DBUG_ENTER("close_connection");
  DBUG_PRINT("enter",("fd: %s  error: '%s'",
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		      thd->net.vio ? vio_description(thd->net.vio) :
		      "(not connected)",
		      errcode ? ER(errcode) : ""));
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  if (lock)
    (void) pthread_mutex_lock(&LOCK_thread_count);
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  thd->killed= THD::KILL_CONNECTION;
  if ((vio= thd->net.vio) != 0)
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  {
    if (errcode)
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      net_send_error(thd, errcode, ER(errcode)); /* purecov: inspected */
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    vio_close(vio);			/* vio is freed in delete thd */
  }
  if (lock)
    (void) pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_VOID_RETURN;
}
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#endif /* EMBEDDED_LIBRARY */

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	/* Called when a thread is aborted */
	/* ARGSUSED */

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extern "C" sig_handler end_thread_signal(int sig __attribute__((unused)))
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{
  THD *thd=current_thd;
  DBUG_ENTER("end_thread_signal");
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  if (thd && ! thd->bootstrap)
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  {
    statistic_increment(killed_threads, &LOCK_status);
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    end_thread(thd,0);
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  }
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  DBUG_VOID_RETURN;				/* purecov: deadcode */
}


void end_thread(THD *thd, bool put_in_cache)
{
  DBUG_ENTER("end_thread");
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  thd->cleanup();
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  (void) pthread_mutex_lock(&LOCK_thread_count);
  thread_count--;
  delete thd;
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  if (put_in_cache && cached_thread_count < thread_cache_size &&
      ! abort_loop && !kill_cached_threads)
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  {
    /* Don't kill the thread, just put it in cache for reuse */
    DBUG_PRINT("info", ("Adding thread to cache"))
    cached_thread_count++;
    while (!abort_loop && ! wake_thread && ! kill_cached_threads)
      (void) pthread_cond_wait(&COND_thread_cache, &LOCK_thread_count);
    cached_thread_count--;
    if (kill_cached_threads)
      pthread_cond_signal(&COND_flush_thread_cache);
    if (wake_thread)
    {
      wake_thread--;
      thd=thread_cache.get();
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      thd->real_id=pthread_self();
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      thd->thread_stack= (char *) &thd;
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      (void) thd->store_globals();
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      thd->thr_create_time= time(NULL);
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      threads.append(thd);
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      pthread_mutex_unlock(&LOCK_thread_count);
      DBUG_VOID_RETURN;
    }
  }

  DBUG_PRINT("info", ("sending a broadcast"))

  /* Tell main we are ready */
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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  /* It's safe to broadcast outside a lock (COND... is not deleted here) */
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  (void) pthread_cond_broadcast(&COND_thread_count);
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  DBUG_PRINT("info", ("unlocked thread_count mutex"))
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#ifdef ONE_THREAD
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  if (!(test_flags & TEST_NO_THREADS))	// For debugging under Linux
#endif
  {
    my_thread_end();
    pthread_exit(0);
  }
  DBUG_VOID_RETURN;
}


/* Start a cached thread. LOCK_thread_count is locked on entry */

static void start_cached_thread(THD *thd)
{
  thread_cache.append(thd);
  wake_thread++;
  thread_count++;
  pthread_cond_signal(&COND_thread_cache);
}


void flush_thread_cache()
{
  (void) pthread_mutex_lock(&LOCK_thread_count);
  kill_cached_threads++;
  while (cached_thread_count)
  {
    pthread_cond_broadcast(&COND_thread_cache);
    pthread_cond_wait(&COND_flush_thread_cache,&LOCK_thread_count);
  }
  kill_cached_threads--;
  (void) pthread_mutex_unlock(&LOCK_thread_count);
}


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/*
  Aborts a thread nicely. Commes here on SIGPIPE
  TODO: One should have to fix that thr_alarm know about this
  thread too.
*/
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#ifdef THREAD_SPECIFIC_SIGPIPE
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extern "C" sig_handler abort_thread(int sig __attribute__((unused)))
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{
  THD *thd=current_thd;
  DBUG_ENTER("abort_thread");
  if (thd)
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    thd->killed= THD::KILL_CONNECTION;
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  DBUG_VOID_RETURN;
}
#endif

/******************************************************************************
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  Setup a signal thread with handles all signals.
  Because Linux doesn't support schemas use a mutex to check that
  the signal thread is ready before continuing
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******************************************************************************/

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#if defined(__WIN__) || defined(OS2)
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static void init_signals(void)
{
  int signals[] = {SIGINT,SIGILL,SIGFPE,SIGSEGV,SIGTERM,SIGABRT } ;
  for (uint i=0 ; i < sizeof(signals)/sizeof(int) ; i++)
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    signal(signals[i], kill_server) ;
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#if defined(__WIN__)
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  signal(SIGBREAK,SIG_IGN);	//ignore SIGBREAK for NT
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#else
  signal(SIGBREAK, kill_server);
#endif
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}

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static void start_signal_handler(void)
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{
  // Save vm id of this process
  if (!opt_bootstrap)
    create_pid_file();
}
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static void check_data_home(const char *path)
{}
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#elif defined(__NETWARE__)

// down server event callback
void mysql_down_server_cb(void *, void *)
{
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  event_flag= TRUE;
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  kill_server(0);
}

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// destroy callback resources
void mysql_cb_destroy(void *)
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{
  UnRegisterEventNotification(eh);  // cleanup down event notification
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  NX_UNWRAP_INTERFACE(ref);
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  /* Deregister NSS volume deactivation event */
  NX_UNWRAP_INTERFACE(refneb);
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  if (neb_consumer_id)
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    UnRegisterConsumer(neb_consumer_id, NULL);
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}

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// initialize callbacks
void mysql_cb_init()
{
  // register for down server event
  void *handle = getnlmhandle();
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  rtag_t rt= AllocateResourceTag(handle, "MySQL Down Server Callback",
                                 EventSignature);
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  NX_WRAP_INTERFACE((void *)mysql_down_server_cb, 2, (void **)&ref);
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  eh= RegisterForEventNotification(rt, EVENT_PRE_DOWN_SERVER,
                                   EVENT_PRIORITY_APPLICATION,
                                   NULL, ref, NULL);

  /*
    Register for volume deactivation event
    Wrap the callback function, as it is called by non-LibC thread
  */
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  (void *) NX_WRAP_INTERFACE(neb_event_callback, 1, &refneb);
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  registerwithneb();

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  NXVmRegisterExitHandler(mysql_cb_destroy, NULL);  // clean-up
}

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/* To get the name of the NetWare volume having MySQL data folder */
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static void getvolumename()
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{
  char *p;
  /*
    We assume that data path is already set.
    If not it won't come here. Terminate after volume name
  */
  if ((p= strchr(mysql_real_data_home, ':')))
    strmake(datavolname, mysql_real_data_home,
            (uint) (p - mysql_real_data_home));
}


/*
  Registering with NEB for NSS Volume Deactivation event
*/

1868
static void registerwithneb()
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{

  ConsumerRegistrationInfo reg_info;
    
  /* Clear NEB registration structure */
  bzero((char*) &reg_info, sizeof(struct ConsumerRegistrationInfo));

  /* Fill the NEB consumer information structure */
  reg_info.CRIVersion= 1;  	            // NEB version
  /* NEB Consumer name */
  reg_info.CRIConsumerName= (BYTE *) "MySQL Database Server";
  /* Event of interest */
  reg_info.CRIEventName= (BYTE *) "NSS.ChangeVolState.Enter";
  reg_info.CRIUserParameter= NULL;	    // Consumer Info
  reg_info.CRIEventFlags= 0;	            // Event flags
  /* Consumer NLM handle */
  reg_info.CRIOwnerID= (LoadDefinitionStructure *)getnlmhandle();
  reg_info.CRIConsumerESR= NULL;	    // No consumer ESR required
  reg_info.CRISecurityToken= 0;	            // No security token for the event
  reg_info.CRIConsumerFlags= 0;             // SMP_ENABLED_BIT;	
  reg_info.CRIFilterName= 0;	            // No event filtering
  reg_info.CRIFilterDataLength= 0;          // No filtering data
  reg_info.CRIFilterData= 0;	            // No filtering data
  /* Callback function for the event */
  (void *)reg_info.CRIConsumerCallback= (void *) refneb;
  reg_info.CRIOrder= 0;	                    // Event callback order
  reg_info.CRIConsumerType= CHECK_CONSUMER; // Consumer type

  /* Register for the event with NEB */
  if (RegisterConsumer(&reg_info))
  {
    consoleprintf("Failed to register for NSS Volume Deactivation event \n");
    return;
  }
  /* This ID is required for deregistration */
  neb_consumer_id= reg_info.CRIConsumerID;

  /* Get MySQL data volume name, stored in global variable datavolname */
  getvolumename();

  /*
    Get the NSS volume ID of the MySQL Data volume.
    Volume ID is stored in a global variable
  */
  getvolumeID((BYTE*) datavolname);	
}


/*
  Callback for NSS Volume Deactivation event
*/
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ulong neb_event_callback(struct EventBlock *eblock)
{
  EventChangeVolStateEnter_s *voldata;
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  extern bool nw_panic;

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  voldata= (EventChangeVolStateEnter_s *)eblock->EBEventData;

  /* Deactivation of a volume */
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  if ((voldata->oldState == zVOLSTATE_ACTIVE &&
       voldata->newState == zVOLSTATE_DEACTIVE ||
       voldata->newState == zVOLSTATE_MAINTENANCE))
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  {
    /*
      Ensure that we bring down MySQL server only for MySQL data
      volume deactivation
    */
    if (!memcmp(&voldata->volID, &datavolid, sizeof(VolumeID_t)))
    {
      consoleprintf("MySQL data volume is deactivated, shutting down MySQL Server \n");
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      event_flag= TRUE;
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      nw_panic = TRUE;
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      event_flag= TRUE;
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      kill_server(0);
    }
  }
  return 0;
}


/*
  Function to get NSS volume ID of the MySQL data
*/

#define ADMIN_VOL_PATH					"_ADMIN:/Volumes/"

1956
static void getvolumeID(BYTE *volumeName)
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{
  char path[zMAX_FULL_NAME];
  Key_t rootKey= 0, fileKey= 0;
  QUAD getInfoMask;
  zInfo_s info;
  STATUS status;

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  /* Get the root key */
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  if ((status= zRootKey(0, &rootKey)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed to get root key, status: %d\n.", (int) status);
    goto exit;
  }

  /*
    Get the file key. This is the key to the volume object in the
    NSS admin volumes directory.
  */

  strxmov(path, (const char *) ADMIN_VOL_PATH, (const char *) volumeName,
          NullS);
  if ((status= zOpen(rootKey, zNSS_TASK, zNSPACE_LONG|zMODE_UTF8, 
                     (BYTE *) path, zRR_READ_ACCESS, &fileKey)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed to get file, status: %d\n.", (int) status);
    goto exit;
  }

  getInfoMask= zGET_IDS | zGET_VOLUME_INFO ;
  if ((status= zGetInfo(fileKey, getInfoMask, sizeof(info), 
                        zINFO_VERSION_A, &info)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed in zGetInfo, status: %d\n.", (int) status);
    goto exit;
  }

  /* Copy the data to global variable */
  datavolid.timeLow= info.vol.volumeID.timeLow;
  datavolid.timeMid= info.vol.volumeID.timeMid;
  datavolid.timeHighAndVersion= info.vol.volumeID.timeHighAndVersion;
  datavolid.clockSeqHighAndReserved= info.vol.volumeID.clockSeqHighAndReserved;
  datavolid.clockSeqLow= info.vol.volumeID.clockSeqLow;
  /* This is guranteed to be 6-byte length (but sizeof() would be better) */
  memcpy(datavolid.node, info.vol.volumeID.node, (unsigned int) 6);
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exit:
  if (rootKey)
    zClose(rootKey);
  if (fileKey)
    zClose(fileKey);
}


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static void init_signals(void)
{
  int signals[] = {SIGINT,SIGILL,SIGFPE,SIGSEGV,SIGTERM,SIGABRT};

  for (uint i=0 ; i < sizeof(signals)/sizeof(int) ; i++)
    signal(signals[i], kill_server);
  mysql_cb_init();  // initialize callbacks

2018
}
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static void start_signal_handler(void)
{
  // Save vm id of this process
  if (!opt_bootstrap)
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    create_pid_file();
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  // no signal handler
}


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/*
  Warn if the data is on a Traditional volume

  NOTE
    Already done by mysqld_safe
*/
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static void check_data_home(const char *path)
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{
}

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#elif defined(__EMX__)
static void sig_reload(int signo)
{
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 // Flush everything
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  bool not_used;
  reload_acl_and_cache((THD*) 0,REFRESH_LOG, (TABLE_LIST*) 0, &not_used);
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  signal(signo, SIG_ACK);
}

static void sig_kill(int signo)
{
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  if (!kill_in_progress)
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  {
    abort_loop=1;				// mark abort for threads
    kill_server((void*) signo);
  }
  signal(signo, SIG_ACK);
}

static void init_signals(void)
{
  signal(SIGQUIT, sig_kill);
  signal(SIGKILL, sig_kill);
  signal(SIGTERM, sig_kill);
  signal(SIGINT,  sig_kill);
  signal(SIGHUP,  sig_reload);	// Flush everything
  signal(SIGALRM, SIG_IGN);
  signal(SIGBREAK,SIG_IGN);
  signal_thread = pthread_self();
}
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static void start_signal_handler(void)
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{}
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static void check_data_home(const char *path)
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{}
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#else /* if ! __WIN__ && ! __EMX__ */
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#ifdef HAVE_LINUXTHREADS
#define UNSAFE_DEFAULT_LINUX_THREADS 200
2081
#endif
2082

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extern "C" sig_handler handle_segfault(int sig)
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{
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  THD *thd=current_thd;
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  /*
    Strictly speaking, one needs a mutex here
    but since we have got SIGSEGV already, things are a mess
    so not having the mutex is not as bad as possibly using a buggy
    mutex - so we keep things simple
  */
2092
  if (segfaulted)
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  {
    fprintf(stderr, "Fatal signal %d while backtracing\n", sig);
    exit(1);
  }
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  segfaulted = 1;
2099
  fprintf(stderr,"\
2100
mysqld got signal %d;\n\
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This could be because you hit a bug. It is also possible that this binary\n\
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or one of the libraries it was linked against is corrupt, improperly built,\n\
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or misconfigured. This error can also be caused by malfunctioning hardware.\n",
	  sig);
  fprintf(stderr, "\
We will try our best to scrape up some info that will hopefully help diagnose\n\
the problem, but since we have already crashed, something is definitely wrong\n\
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and this may fail.\n\n");
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  fprintf(stderr, "key_buffer_size=%lu\n", 
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          (ulong) dflt_key_cache->key_cache_mem_size);
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  fprintf(stderr, "read_buffer_size=%ld\n", (long) global_system_variables.read_buff_size);
  fprintf(stderr, "max_used_connections=%lu\n", max_used_connections);
  fprintf(stderr, "max_connections=%lu\n", max_connections);
  fprintf(stderr, "threads_connected=%u\n", thread_count);
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  fprintf(stderr, "It is possible that mysqld could use up to \n\
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = %lu K\n\
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bytes of memory\n", ((ulong) dflt_key_cache->key_cache_mem_size +
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		     (global_system_variables.read_buff_size +
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		      global_system_variables.sortbuff_size) *
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		     max_connections)/ 1024);
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  fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n");
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#if defined(HAVE_LINUXTHREADS)
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  if (sizeof(char*) == 4 && thread_count > UNSAFE_DEFAULT_LINUX_THREADS)
  {
    fprintf(stderr, "\
You seem to be running 32-bit Linux and have %d concurrent connections.\n\
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If you have not changed STACK_SIZE in LinuxThreads and built the binary \n\
yourself, LinuxThreads is quite likely to steal a part of the global heap for\n\
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the thread stack. Please read http://www.mysql.com/doc/en/Linux.html\n\n",
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	    thread_count);
  }
#endif /* HAVE_LINUXTHREADS */
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#ifdef HAVE_STACKTRACE
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  if (!(test_flags & TEST_NO_STACKTRACE))
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  {
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    fprintf(stderr,"thd=%p\n",thd);
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    print_stacktrace(thd ? (gptr) thd->thread_stack : (gptr) 0,
		     thread_stack);
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  }
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  if (thd)
  {
    fprintf(stderr, "Trying to get some variables.\n\
Some pointers may be invalid and cause the dump to abort...\n");
    safe_print_str("thd->query", thd->query, 1024);
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    fprintf(stderr, "thd->thread_id=%lu\n", (ulong) thd->thread_id);
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  }
  fprintf(stderr, "\
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The manual page at http://www.mysql.com/doc/en/Crashing.html contains\n\
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information that should help you find out what is causing the crash.\n");
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  fflush(stderr);
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#endif /* HAVE_STACKTRACE */

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#ifdef HAVE_INITGROUPS
  if (calling_initgroups)
    fprintf(stderr, "\n\
This crash occured while the server was calling initgroups(). This is\n\
often due to the use of a mysqld that is statically linked against glibc\n\
and configured to use LDAP in /etc/nsswitch.conf. You will need to either\n\
upgrade to a version of glibc that does not have this problem (2.3.4 or\n\
later when used with nscd), disable LDAP in your nsswitch.conf, or use a\n\
mysqld that is not statically linked.\n");
#endif

2166
 if (test_flags & TEST_CORE_ON_SIGNAL)
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 {
   fprintf(stderr, "Writing a core file\n");
   fflush(stderr);
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   write_core(sig);
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 }
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 exit(1);
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}

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#ifndef SA_RESETHAND
#define SA_RESETHAND 0
#endif
#ifndef SA_NODEFER
#define SA_NODEFER 0
#endif
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static void init_signals(void)
{
  sigset_t set;
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  struct sigaction sa;
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  DBUG_ENTER("init_signals");

2188
  if (test_flags & TEST_SIGINT)
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    my_sigset(THR_KILL_SIGNAL,end_thread_signal);
  my_sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called!
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  if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
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  {
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    sa.sa_flags = SA_RESETHAND | SA_NODEFER;
    sigemptyset(&sa.sa_mask);
    sigprocmask(SIG_SETMASK,&sa.sa_mask,NULL);

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    init_stacktrace();
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#if defined(__amiga__)
    sa.sa_handler=(void(*)())handle_segfault;
#else
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    sa.sa_handler=handle_segfault;
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#endif
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    sigaction(SIGSEGV, &sa, NULL);
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    sigaction(SIGABRT, &sa, NULL);
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#ifdef SIGBUS
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    sigaction(SIGBUS, &sa, NULL);
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#endif
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    sigaction(SIGILL, &sa, NULL);
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    sigaction(SIGFPE, &sa, NULL);
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  }
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#ifdef HAVE_GETRLIMIT
  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    /* Change limits so that we will get a core file */
2217
    STRUCT_RLIMIT rl;
2218
    rl.rlim_cur = rl.rlim_max = RLIM_INFINITY;
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    if (setrlimit(RLIMIT_CORE, &rl) && global_system_variables.log_warnings)
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      sql_print_warning("setrlimit could not change the size of core files to 'infinity';  We may not be able to generate a core file on signals");
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  }
#endif
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  (void) sigemptyset(&set);
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  my_sigset(SIGPIPE,SIG_IGN);
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  sigaddset(&set,SIGPIPE);
  sigaddset(&set,SIGINT);
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#ifndef IGNORE_SIGHUP_SIGQUIT
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  sigaddset(&set,SIGQUIT);
  sigaddset(&set,SIGHUP);
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#endif
  sigaddset(&set,SIGTERM);
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  /* Fix signals if blocked by parents (can happen on Mac OS X) */
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  sigemptyset(&sa.sa_mask);
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  sa.sa_flags = 0;
  sa.sa_handler = print_signal_warning;
  sigaction(SIGTERM, &sa, (struct sigaction*) 0);
  sa.sa_flags = 0;
  sa.sa_handler = print_signal_warning;
  sigaction(SIGHUP, &sa, (struct sigaction*) 0);
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#ifdef SIGTSTP
  sigaddset(&set,SIGTSTP);
#endif
  sigaddset(&set,THR_SERVER_ALARM);
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  if (test_flags & TEST_SIGINT)
    sigdelset(&set,THR_KILL_SIGNAL);		// May be SIGINT
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  sigdelset(&set,THR_CLIENT_ALARM);		// For alarms
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  sigprocmask(SIG_SETMASK,&set,NULL);
  pthread_sigmask(SIG_SETMASK,&set,NULL);
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  DBUG_VOID_RETURN;
}


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#ifndef EMBEDDED_LIBRARY
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static void start_signal_handler(void)
{
  int error;
  pthread_attr_t thr_attr;
  DBUG_ENTER("start_signal_handler");
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  (void) pthread_attr_init(&thr_attr);
#if !defined(HAVE_DEC_3_2_THREADS)
  pthread_attr_setscope(&thr_attr,PTHREAD_SCOPE_SYSTEM);
  (void) pthread_attr_setdetachstate(&thr_attr,PTHREAD_CREATE_DETACHED);
  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_attr_setprio(&thr_attr,INTERRUPT_PRIOR);
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#if defined(__ia64__) || defined(__ia64)
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  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
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  pthread_attr_setstacksize(&thr_attr,thread_stack*2);
#else
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  pthread_attr_setstacksize(&thr_attr,thread_stack);
2275
#endif
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#endif

  (void) pthread_mutex_lock(&LOCK_thread_count);
  if ((error=pthread_create(&signal_thread,&thr_attr,signal_hand,0)))
  {
    sql_print_error("Can't create interrupt-thread (error %d, errno: %d)",
		    error,errno);
    exit(1);
  }
  (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
  pthread_mutex_unlock(&LOCK_thread_count);

  (void) pthread_attr_destroy(&thr_attr);
  DBUG_VOID_RETURN;
}


2293
/* This threads handles all signals and alarms */
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/* ARGSUSED */
2296
pthread_handler_t signal_hand(void *arg __attribute__((unused)))
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{
  sigset_t set;
  int sig;
  my_thread_init();				// Init new thread
  DBUG_ENTER("signal_hand");
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  signal_thread_in_use= 1;

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  /*
    Setup alarm handler
2306 2307
    This should actually be '+ max_number_of_slaves' instead of +10,
    but the +10 should be quite safe.
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  */
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  init_thr_alarm(max_connections +
		 global_system_variables.max_insert_delayed_threads + 10);
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#if SIGINT != THR_KILL_SIGNAL
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  if (test_flags & TEST_SIGINT)
  {
    (void) sigemptyset(&set);			// Setup up SIGINT for debug
    (void) sigaddset(&set,SIGINT);		// For debugging
    (void) pthread_sigmask(SIG_UNBLOCK,&set,NULL);
  }
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#endif
  (void) sigemptyset(&set);			// Setup up SIGINT for debug
#ifdef USE_ONE_SIGNAL_HAND
  (void) sigaddset(&set,THR_SERVER_ALARM);	// For alarms
#endif
2323
#ifndef IGNORE_SIGHUP_SIGQUIT
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  (void) sigaddset(&set,SIGQUIT);
#if THR_CLIENT_ALARM != SIGHUP
  (void) sigaddset(&set,SIGHUP);
#endif
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#endif
  (void) sigaddset(&set,SIGTERM);
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  (void) sigaddset(&set,SIGTSTP);

  /* Save pid to this process (or thread on Linux) */
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  if (!opt_bootstrap)
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    create_pid_file();

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#ifdef HAVE_STACK_TRACE_ON_SEGV
  if (opt_do_pstack)
  {
    sprintf(pstack_file_name,"mysqld-%lu-%%d-%%d.backtrace", (ulong)getpid());
    pstack_install_segv_action(pstack_file_name);
  }
#endif /* HAVE_STACK_TRACE_ON_SEGV */
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  /*
    signal to start_signal_handler that we are ready
    This works by waiting for start_signal_handler to free mutex,
    after which we signal it that we are ready.
    At this pointer there is no other threads running, so there
    should not be any other pthread_cond_signal() calls.
  */
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  (void) pthread_mutex_lock(&LOCK_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
2353
  (void) pthread_cond_broadcast(&COND_thread_count);
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  (void) pthread_sigmask(SIG_BLOCK,&set,NULL);
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  for (;;)
  {
    int error;					// Used when debugging
    if (shutdown_in_progress && !abort_loop)
    {
2361
      sig= SIGTERM;
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      error=0;
    }
    else
      while ((error=my_sigwait(&set,&sig)) == EINTR) ;
    if (cleanup_done)
2367
    {
2368
      DBUG_PRINT("quit",("signal_handler: calling my_thread_end()"));
2369
      my_thread_end();
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      signal_thread_in_use= 0;
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      pthread_exit(0);				// Safety
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    }
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    switch (sig) {
    case SIGTERM:
    case SIGQUIT:
    case SIGKILL:
#ifdef EXTRA_DEBUG
2378
      sql_print_information("Got signal %d to shutdown mysqld",sig);
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#endif
      DBUG_PRINT("info",("Got signal: %d  abort_loop: %d",sig,abort_loop));
      if (!abort_loop)
      {
	abort_loop=1;				// mark abort for threads
#ifdef USE_ONE_SIGNAL_HAND
	pthread_t tmp;
	if (!(opt_specialflag & SPECIAL_NO_PRIOR))
	  my_pthread_attr_setprio(&connection_attrib,INTERRUPT_PRIOR);
	if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
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			   (void*) &sig))
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	  sql_print_error("Can't create thread to kill server");
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#else
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	kill_server((void*) sig);	// MIT THREAD has a alarm thread
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#endif
      }
      break;
    case SIGHUP:
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      if (!abort_loop)
      {
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        bool not_used;
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	mysql_print_status();		// Print some debug info
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	reload_acl_and_cache((THD*) 0,
			     (REFRESH_LOG | REFRESH_TABLES | REFRESH_FAST |
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			      REFRESH_GRANT |
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			      REFRESH_THREADS | REFRESH_HOSTS),
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			     (TABLE_LIST*) 0, &not_used); // Flush logs
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      }
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      break;
#ifdef USE_ONE_SIGNAL_HAND
    case THR_SERVER_ALARM:
      process_alarm(sig);			// Trigger alarms.
      break;
#endif
    default:
#ifdef EXTRA_DEBUG
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      sql_print_warning("Got signal: %d  error: %d",sig,error); /* purecov: tested */
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#endif
      break;					/* purecov: tested */
    }
  }
  return(0);					/* purecov: deadcode */
}
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#endif /*!EMBEDDED_LIBRARY*/
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static void check_data_home(const char *path)
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{}
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#endif	/* __WIN__*/


/*
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  All global error messages are sent here where the first one is stored
  for the client
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*/


/* ARGSUSED */
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static int my_message_sql(uint error, const char *str, myf MyFlags)
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{
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  THD *thd;
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  DBUG_ENTER("my_message_sql");
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  DBUG_PRINT("error", ("error: %u  message: '%s'", error, str));
  /*
    Put here following assertion when situation with EE_* error codes
    will be fixed
    DBUG_ASSERT(error != 0);
  */
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  if ((thd= current_thd))
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  {
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    if (thd->spcont &&
        thd->spcont->find_handler(error, MYSQL_ERROR::WARN_LEVEL_ERROR))
    {
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      if (! thd->spcont->found_handler_here())
        thd->net.report_error= 1; /* Make "select" abort correctly */ 
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      DBUG_RETURN(0);
    }

    thd->query_error=  1; // needed to catch query errors during replication

    if (!thd->no_warnings_for_error)
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, error, str);
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    /*
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      thd->lex->current_select == 0 if lex structure is not inited
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      (not query command (COM_QUERY))
    */
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    if (thd->lex->current_select &&
	thd->lex->current_select->no_error && !thd->is_fatal_error)
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    {
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      DBUG_PRINT("error", ("Error converted to warning: current_select: no_error %d  fatal_error: %d",
                           (thd->lex->current_select ?
                            thd->lex->current_select->no_error : 0),
                           (int) thd->is_fatal_error));
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    }
    else
    {
      NET *net= &thd->net;
      net->report_error= 1;
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#ifndef EMBEDDED_LIBRARY  /* TODO query cache in embedded library*/
      query_cache_abort(net);
#endif
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      if (!net->last_error[0])			// Return only first message
      {
	strmake(net->last_error, str, sizeof(net->last_error)-1);
	net->last_errno= error ? error : ER_UNKNOWN_ERROR;
      }
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    }
  }
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  if (!thd || MyFlags & ME_NOREFRESH)
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    sql_print_error("%s: %s",my_progname,str); /* purecov: inspected */
  DBUG_RETURN(0);
}

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static void *my_str_malloc_mysqld(size_t size)
{
  return my_malloc(size, MYF(MY_FAE));
}


static void my_str_free_mysqld(void *ptr)
{
  my_free((gptr)ptr, MYF(MY_FAE));
}


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#ifdef __WIN__

struct utsname
{
  char nodename[FN_REFLEN];
};

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int uname(struct utsname *a)
{
  return -1;
}


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pthread_handler_t handle_shutdown(void *arg)
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{
  MSG msg;
  my_thread_init();

  /* this call should create the message queue for this thread */
  PeekMessage(&msg, NULL, 1, 65534,PM_NOREMOVE);
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#if !defined(EMBEDDED_LIBRARY)
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  if (WaitForSingleObject(hEventShutdown,INFINITE)==WAIT_OBJECT_0)
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#endif /* EMBEDDED_LIBRARY */
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     kill_server(MYSQL_KILL_SIGNAL);
  return 0;
}

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int STDCALL handle_kill(ulong ctrl_type)
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{
  if (ctrl_type == CTRL_CLOSE_EVENT ||
      ctrl_type == CTRL_SHUTDOWN_EVENT)
  {
    kill_server(MYSQL_KILL_SIGNAL);
    return TRUE;
  }
  return FALSE;
}
#endif

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#ifdef OS2
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pthread_handler_t handle_shutdown(void *arg)
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{
  my_thread_init();

  // wait semaphore
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  pthread_cond_wait(&eventShutdown, NULL);
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  // close semaphore and kill server
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  pthread_cond_destroy(&eventShutdown);
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  /*
    Exit main loop on main thread, so kill will be done from
    main thread (this is thread 2)
  */
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  abort_loop = 1;

  // unblock select()
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  so_cancel(ip_sock);
  so_cancel(unix_sock);
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  return 0;
}
#endif

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static const char *load_default_groups[]= {
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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"mysql_cluster",
#endif
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"mysqld","server", MYSQL_BASE_VERSION, 0, 0};

#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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static const int load_default_groups_sz=
sizeof(load_default_groups)/sizeof(load_default_groups[0]);
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#endif
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/*
  Initialize one of the global date/time format variables

  SYNOPSIS
    init_global_datetime_format()
    format_type		What kind of format should be supported
    var_ptr		Pointer to variable that should be updated
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  NOTES
    The default value is taken from either opt_date_time_formats[] or
    the ISO format (ANSI SQL)

  RETURN
    0 ok
    1 error
*/

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static bool init_global_datetime_format(timestamp_type format_type,
                                        DATE_TIME_FORMAT **var_ptr)
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{
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  /* Get command line option */
  const char *str= opt_date_time_formats[format_type];
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  if (!str)					// No specified format
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  {
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    str= get_date_time_format_str(&known_date_time_formats[ISO_FORMAT],
				  format_type);
    /*
      Set the "command line" option to point to the generated string so
      that we can set global formats back to default
    */
    opt_date_time_formats[format_type]= str;
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  }
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  if (!(*var_ptr= date_time_format_make(format_type, str, strlen(str))))
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  {
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    fprintf(stderr, "Wrong date/time format specifier: %s\n", str);
    return 1;
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  }
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  return 0;
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}


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static int init_common_variables(const char *conf_file_name, int argc,
				 char **argv, const char **groups)
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{
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  umask(((~my_umask) & 0666));
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  my_decimal_set_zero(&decimal_zero); // set decimal_zero constant;
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  tzset();			// Set tzname

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  max_system_variables.pseudo_thread_id= (ulong)~0;
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  start_time=time((time_t*) 0);
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  if (init_thread_environment())
    return 1;
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  mysql_init_variables();
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#ifdef OS2
  {
    // fix timezone for daylight saving
    struct tm *ts = localtime(&start_time);
    if (ts->tm_isdst > 0)
      _timezone -= 3600;
  }
#endif
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#ifdef HAVE_TZNAME
  {
    struct tm tm_tmp;
    localtime_r(&start_time,&tm_tmp);
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    strmake(system_time_zone, tzname[tm_tmp.tm_isdst != 0 ? 1 : 0],
            sizeof(system_time_zone)-1);

 }
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#endif
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  /*
    We set SYSTEM time zone as reasonable default and 
    also for failure of my_tz_init() and bootstrap mode.
    If user explicitly set time zone with --default-time-zone
    option we will change this value in my_tz_init().
  */
  global_system_variables.time_zone= my_tz_SYSTEM;
  
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  /*
    Init mutexes for the global MYSQL_LOG objects.
    As safe_mutex depends on what MY_INIT() does, we can't init the mutexes of
    global MYSQL_LOGs in their constructors, because then they would be inited
    before MY_INIT(). So we do it here.
  */
  mysql_log.init_pthread_objects();
  mysql_slow_log.init_pthread_objects();
  mysql_bin_log.init_pthread_objects();
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  if (gethostname(glob_hostname,sizeof(glob_hostname)-4) < 0)
    strmov(glob_hostname,"mysql");
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  strmake(pidfile_name, glob_hostname, sizeof(pidfile_name)-5);
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  strmov(fn_ext(pidfile_name),".pid");		// Add proper extension
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  /*
    Add server status variables to the dynamic list of
    status variables that is shown by SHOW STATUS.
    Later, in plugin_init, plugin_load, and mysql_install_plugin
    new entries could be added to that list.
  */
  if (add_status_vars(status_vars))
    return 1; // an error was already reported

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  if (plugin_init())
  {
    sql_print_error("Failed to init plugins.");
    return 1;
  }

  if (ha_register_builtin_plugins())
  {
    sql_print_error("Failed to register built-in storage engines.");
    return 1;
  }

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  load_defaults(conf_file_name, groups, &argc, &argv);
  defaults_argv=argv;
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  get_options(argc,argv);
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  set_server_version();

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  DBUG_PRINT("info",("%s  Ver %s for %s on %s\n",my_progname,
		     server_version, SYSTEM_TYPE,MACHINE_TYPE));

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#ifdef HAVE_LARGE_PAGES
  /* Initialize large page size */
  if (opt_large_pages && (opt_large_page_size= my_get_large_page_size()))
  {
      my_use_large_pages= 1;
      my_large_page_size= opt_large_page_size;
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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      innobase_use_large_pages= 1;
      innobase_large_page_size= opt_large_page_size;
#endif
  }
#endif /* HAVE_LARGE_PAGES */

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  /* connections and databases needs lots of files */
  {
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    uint files, wanted_files;

    wanted_files= 10+(uint) max(max_connections*5,
				 max_connections+table_cache_size*2);
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    set_if_bigger(wanted_files, open_files_limit);
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    files= my_set_max_open_files(wanted_files);

    if (files < wanted_files)
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    {
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      if (!open_files_limit)
      {
	max_connections=	(ulong) min((files-10),max_connections);
	table_cache_size= (ulong) max((files-10-max_connections)/2,64);
	DBUG_PRINT("warning",
		   ("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
		    files, max_connections, table_cache_size));
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	if (global_system_variables.log_warnings)
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	  sql_print_warning("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
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			files, max_connections, table_cache_size);
      }
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      else if (global_system_variables.log_warnings)
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	sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, wanted_files);
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    }
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    open_files_limit= files;
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  }
  unireg_init(opt_specialflag); /* Set up extern variabels */
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  if (init_errmessage())	/* Read error messages from file */
    return 1;
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  init_client_errs();
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  lex_init();
  item_init();
  set_var_init();
  mysys_uses_curses=0;
#ifdef USE_REGEX
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  my_regex_init(&my_charset_latin1);
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#endif
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  if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
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						    MY_CS_PRIMARY,
						    MYF(MY_WME))))
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    return 1;
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  if (default_collation_name)
  {
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    CHARSET_INFO *default_collation;
    default_collation= get_charset_by_name(default_collation_name, MYF(0));
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    if (!default_collation)
    {
      sql_print_error(ER(ER_UNKNOWN_COLLATION), default_collation_name);
      return 1;
    }
    if (!my_charset_same(default_charset_info, default_collation))
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    {
      sql_print_error(ER(ER_COLLATION_CHARSET_MISMATCH),
		      default_collation_name,
		      default_charset_info->csname);
      return 1;
    }
    default_charset_info= default_collation;
  }
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  /* Set collactions that depends on the default collation */
  global_system_variables.collation_server=	 default_charset_info;
  global_system_variables.collation_database=	 default_charset_info;
  global_system_variables.collation_connection=  default_charset_info;
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  global_system_variables.character_set_results= default_charset_info;
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  global_system_variables.character_set_client= default_charset_info;
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  global_system_variables.collation_connection= default_charset_info;
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  sys_init_connect.value_length= 0;
  if ((sys_init_connect.value= opt_init_connect))
    sys_init_connect.value_length= strlen(opt_init_connect);
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  else
    sys_init_connect.value=my_strdup("",MYF(0));
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  sys_init_slave.value_length= 0;
  if ((sys_init_slave.value= opt_init_slave))
    sys_init_slave.value_length= strlen(opt_init_slave);
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  else
    sys_init_slave.value=my_strdup("",MYF(0));
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  if (use_temp_pool && bitmap_init(&temp_pool,0,1024,1))
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    return 1;
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  if (my_dbopt_init())
    return 1;

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  /*
    Ensure that lower_case_table_names is set on system where we have case
    insensitive names.  If this is not done the users MyISAM tables will
    get corrupted if accesses with names of different case.
  */
  DBUG_PRINT("info", ("lower_case_table_names: %d", lower_case_table_names));
  if (!lower_case_table_names &&
      (lower_case_file_system=
       (test_if_case_insensitive(mysql_real_data_home) == 1)))
  {
    if (lower_case_table_names_used)
    {
      if (global_system_variables.log_warnings)
	sql_print_warning("\
You have forced lower_case_table_names to 0 through a command-line \
option, even though your file system '%s' is case insensitive.  This means \
that you can corrupt a MyISAM table by accessing it with different cases. \
You should consider changing lower_case_table_names to 1 or 2",
			mysql_real_data_home);
    }
    else
    {
      if (global_system_variables.log_warnings)
	sql_print_warning("Setting lower_case_table_names=2 because file system for %s is case insensitive", mysql_real_data_home);
      lower_case_table_names= 2;
    }
  }
  else if (lower_case_table_names == 2 &&
           !(lower_case_file_system=
             (test_if_case_insensitive(mysql_real_data_home) == 1)))
  {
    if (global_system_variables.log_warnings)
      sql_print_warning("lower_case_table_names was set to 2, even though your "
                        "the file system '%s' is case sensitive.  Now setting "
                        "lower_case_table_names to 0 to avoid future problems.",
			mysql_real_data_home);
    lower_case_table_names= 0;
  }

  /* Reset table_alias_charset, now that lower_case_table_names is set. */
  table_alias_charset= (lower_case_table_names ?
			files_charset_info :
			&my_charset_bin);

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  return 0;
}
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static int init_thread_environment()
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{
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  (void) pthread_mutex_init(&LOCK_mysql_create_db,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_Acl,MY_MUTEX_INIT_SLOW);
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  (void) pthread_mutex_init(&LOCK_open, NULL);
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  (void) pthread_mutex_init(&LOCK_thread_count,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_mapped_file,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_status,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_error_log,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_insert,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_status,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_create,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_manager,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_crypt,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_bytes_sent,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_bytes_received,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_user_conn, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_active_mi, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_global_system_variables, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_global_read_lock, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_uuid_generator, MY_MUTEX_INIT_FAST);
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#ifdef HAVE_OPENSSL
  (void) pthread_mutex_init(&LOCK_des_key_file,MY_MUTEX_INIT_FAST);
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#ifndef HAVE_YASSL
  openssl_stdlocks= (openssl_lock_t*) OPENSSL_malloc(CRYPTO_num_locks() *
                                                     sizeof(openssl_lock_t));
  for (int i= 0; i < CRYPTO_num_locks(); ++i)
    (void) my_rwlock_init(&openssl_stdlocks[i].lock, NULL); 
  CRYPTO_set_dynlock_create_callback(openssl_dynlock_create);
  CRYPTO_set_dynlock_destroy_callback(openssl_dynlock_destroy);
  CRYPTO_set_dynlock_lock_callback(openssl_lock);
  CRYPTO_set_locking_callback(openssl_lock_function);
  CRYPTO_set_id_callback(openssl_id_function);
#endif
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#endif
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  (void) my_rwlock_init(&LOCK_sys_init_connect, NULL);
  (void) my_rwlock_init(&LOCK_sys_init_slave, NULL);
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  (void) my_rwlock_init(&LOCK_grant, NULL);
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  (void) pthread_cond_init(&COND_thread_count,NULL);
  (void) pthread_cond_init(&COND_refresh,NULL);
  (void) pthread_cond_init(&COND_thread_cache,NULL);
  (void) pthread_cond_init(&COND_flush_thread_cache,NULL);
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  (void) pthread_cond_init(&COND_manager,NULL);
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#ifdef HAVE_REPLICATION
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  (void) pthread_mutex_init(&LOCK_rpl_status, MY_MUTEX_INIT_FAST);
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  (void) pthread_cond_init(&COND_rpl_status, NULL);
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#endif
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  (void) pthread_mutex_init(&LOCK_server_started, MY_MUTEX_INIT_FAST);
  (void) pthread_cond_init(&COND_server_started,NULL);
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  sp_cache_init();
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  /* Parameter for threads created for connections */
  (void) pthread_attr_init(&connection_attrib);
  (void) pthread_attr_setdetachstate(&connection_attrib,
				     PTHREAD_CREATE_DETACHED);
  pthread_attr_setscope(&connection_attrib, PTHREAD_SCOPE_SYSTEM);
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  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_attr_setprio(&connection_attrib,WAIT_PRIOR);
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  if (pthread_key_create(&THR_THD,NULL) ||
      pthread_key_create(&THR_MALLOC,NULL))
  {
    sql_print_error("Can't create thread-keys");
    return 1;
  }
  return 0;
}

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#if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL)
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static unsigned long openssl_id_function()
{ 
  return (unsigned long) pthread_self();
} 


static openssl_lock_t *openssl_dynlock_create(const char *file, int line)
{ 
  openssl_lock_t *lock= new openssl_lock_t;
  my_rwlock_init(&lock->lock, NULL);
  return lock;
}


static void openssl_dynlock_destroy(openssl_lock_t *lock, const char *file, 
				    int line)
{
  rwlock_destroy(&lock->lock);
  delete lock;
}


static void openssl_lock_function(int mode, int n, const char *file, int line)
{
  if (n < 0 || n > CRYPTO_num_locks())
  {
    /* Lock number out of bounds. */
    sql_print_error("Fatal: OpenSSL interface problem (n = %d)", n);
    abort();
  }
  openssl_lock(mode, &openssl_stdlocks[n], file, line);
}


static void openssl_lock(int mode, openssl_lock_t *lock, const char *file, 
			 int line)
{
  int err;
  char const *what;

  switch (mode) {
  case CRYPTO_LOCK|CRYPTO_READ:
    what = "read lock";
    err = rw_rdlock(&lock->lock);
    break;
  case CRYPTO_LOCK|CRYPTO_WRITE:
    what = "write lock";
    err = rw_wrlock(&lock->lock);
    break;
  case CRYPTO_UNLOCK|CRYPTO_READ:
  case CRYPTO_UNLOCK|CRYPTO_WRITE:
    what = "unlock";
    err = rw_unlock(&lock->lock);
    break;
  default:
    /* Unknown locking mode. */
    sql_print_error("Fatal: OpenSSL interface problem (mode=0x%x)", mode);
    abort();
  }
  if (err) 
  {
    sql_print_error("Fatal: can't %s OpenSSL %s lock", what);
    abort();
  }
}
#endif /* HAVE_OPENSSL */


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static void init_ssl()
{
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#ifdef HAVE_OPENSSL
  if (opt_use_ssl)
  {
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    /* having ssl_acceptor_fd != 0 signals the use of SSL */
    ssl_acceptor_fd= new_VioSSLAcceptorFd(opt_ssl_key, opt_ssl_cert,
					  opt_ssl_ca, opt_ssl_capath,
					  opt_ssl_cipher);
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    DBUG_PRINT("info",("ssl_acceptor_fd: 0x%lx", (long) ssl_acceptor_fd));
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    if (!ssl_acceptor_fd)
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    {
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      opt_use_ssl = 0;
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      have_openssl= SHOW_OPTION_DISABLED;
    }
  }
  else
  {
    have_openssl= SHOW_OPTION_DISABLED;
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  }
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  if (des_key_file)
    load_des_key_file(des_key_file);
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#endif /* HAVE_OPENSSL */
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}
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3017

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static int init_server_components()
{
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  DBUG_ENTER("init_server_components");
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  /*
    We need to call each of these following functions to ensure that
    all things are initialized so that unireg_abort() doesn't fail
  */
  if (table_cache_init() | table_def_init() | hostname_cache_init())
3026
    unireg_abort(1);
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  query_cache_result_size_limit(query_cache_limit);
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  query_cache_set_min_res_unit(query_cache_min_res_unit);
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  query_cache_init();
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  query_cache_resize(query_cache_size);
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  randominit(&sql_rand,(ulong) start_time,(ulong) start_time/2);
  reset_floating_point_exceptions();
  init_thr_lock();
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#ifdef HAVE_REPLICATION
3036
  init_slave_list();
3037
#endif
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  /* Setup log files */
  if (opt_log)
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    mysql_log.open_query_log(opt_logname);
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  if (opt_update_log)
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  {
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    /*
      Update log is removed since 5.0. But we still accept the option.
      The idea is if the user already uses the binlog and the update log,
      we completely ignore any option/variable related to the update log, like
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      if the update log did not exist. But if the user uses only the update
      log, then we translate everything into binlog for him (with warnings).
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      Implementation of the above :
      - If mysqld is started with --log-update and --log-bin,
      ignore --log-update (print a warning), push a warning when SQL_LOG_UPDATE
      is used, and turn off --sql-bin-update-same.
      This will completely ignore SQL_LOG_UPDATE
      - If mysqld is started with --log-update only,
      change it to --log-bin (with the filename passed to log-update,
      plus '-bin') (print a warning), push a warning when SQL_LOG_UPDATE is
      used, and turn on --sql-bin-update-same.
      This will translate SQL_LOG_UPDATE to SQL_LOG_BIN.

      Note that we tell the user that --sql-bin-update-same is deprecated and
      does nothing, and we don't take into account if he used this option or
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      not; but internally we give this variable a value to have the behaviour
      we want (i.e. have SQL_LOG_UPDATE influence SQL_LOG_BIN or not).
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      As sql-bin-update-same, log-update and log-bin cannot be changed by the
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      user after starting the server (they are not variables), the user will
      not later interfere with the settings we do here.
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    */
    if (opt_bin_log)
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    {
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      opt_sql_bin_update= 0;
      sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log.");
    }
    else
    {
      opt_sql_bin_update= 1;
      opt_bin_log= 1;
      if (opt_update_logname)
      {
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        /* as opt_bin_log==0, no need to free opt_bin_logname */
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        if (!(opt_bin_logname= my_strdup(opt_update_logname, MYF(MY_WME))))
          exit(EXIT_OUT_OF_MEMORY);
        sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log. Now starting MySQL \
with --log-bin='%s' instead.",opt_bin_logname);
      }
      else
        sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log. Now starting MySQL \
with --log-bin instead.");
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    }
3092
  }
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  if (opt_log_slave_updates && !opt_bin_log)
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  {
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    sql_print_warning("You need to use --log-bin to make "
                      "--log-slave-updates work.");
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    unireg_abort(1);
  }

  if (!opt_bin_log && (opt_binlog_format_id != BF_UNSPECIFIED))
  {
    sql_print_warning("You need to use --log-bin to make "
                      "--binlog-format work.");
    unireg_abort(1);
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  }
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  if (opt_binlog_format_id == BF_UNSPECIFIED)
  {
    /*
      We use statement-based by default, but could change this to be row-based
      if this is a cluster build (i.e. have_ndbcluster is true)...
    */
    opt_binlog_format_id= BF_STMT;
  }
#ifdef HAVE_ROW_BASED_REPLICATION
  if (opt_binlog_format_id == BF_ROW) 
  {
    binlog_row_based= TRUE;
    /*
      Row-based binlogging turns on InnoDB unsafe locking, because the locks
      are not needed when using row-based binlogging. In fact
      innodb-locks-unsafe-for-binlog is unsafe only for stmt-based, it's
      safe for row-based.
    */
#ifdef HAVE_INNOBASE_DB
    innobase_locks_unsafe_for_binlog= TRUE;
#endif
    /* Trust stored function creators because they can do no harm */
    trust_function_creators= 1;
  }
#endif
  /* Check that we have not let the format to unspecified at this point */
  DBUG_ASSERT((uint)opt_binlog_format_id <=
              array_elements(binlog_format_names)-1);
  opt_binlog_format= binlog_format_names[opt_binlog_format_id];
3135

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  if (opt_slow_log)
    mysql_slow_log.open_slow_log(opt_slow_logname);

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#ifdef HAVE_REPLICATION
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  if (opt_log_slave_updates && replicate_same_server_id)
  {
    sql_print_error("\
3143
using --replicate-same-server-id in conjunction with \
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--log-slave-updates is impossible, it would lead to infinite loops in this \
server.");
    unireg_abort(1);
  }
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#endif
3149 3150

  if (opt_error_log)
3151
  {
3152
    if (!log_error_file_ptr[0])
3153 3154
      fn_format(log_error_file, glob_hostname, mysql_data_home, ".err",
                MY_REPLACE_EXT); /* replace '.<domain>' by '.err', bug#4997 */
3155 3156 3157 3158 3159
    else
      fn_format(log_error_file, log_error_file_ptr, mysql_data_home, ".err",
		MY_UNPACK_FILENAME | MY_SAFE_PATH);
    if (!log_error_file[0])
      opt_error_log= 1;				// Too long file name
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    else
    {
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#ifndef EMBEDDED_LIBRARY
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      if (freopen(log_error_file, "a+", stdout))
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#endif
3165
	stderror_file= freopen(log_error_file, "a+", stderr);
3166
    }
3167
  }
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  if (opt_bin_log)
3170
  {
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    char buf[FN_REFLEN];
    const char *ln;
    ln= mysql_bin_log.generate_name(opt_bin_logname, "-bin", 1, buf);
    if (!opt_bin_logname && !opt_binlog_index_name)
3175 3176
    {
      /*
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        User didn't give us info to name the binlog index file.
        Picking `hostname`-bin.index like did in 4.x, causes replication to
        fail if the hostname is changed later. So, we would like to instead
        require a name. But as we don't want to break many existing setups, we
        only give warning, not error.
3182
      */
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      sql_print_warning("No argument was provided to --log-bin, and "
                        "--log-bin-index was not used; so replication "
                        "may break when this MySQL server acts as a "
                        "master and has his hostname changed!! Please "
                        "use '--log-bin=%s' to avoid this problem.", ln);
3188
    }
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    if (ln == buf)
3190
    {
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      my_free(opt_bin_logname, MYF(MY_ALLOW_ZERO_PTR));
      opt_bin_logname=my_strdup(buf, MYF(0));
3193
    }
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    if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln))
    {
      unireg_abort(1);
    }

    /*
      Used to specify which type of lock we need to use for queries of type
      INSERT ... SELECT. This will change when we have row level logging.
    */
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    using_update_log=1;
3204 3205
  }

3206 3207 3208 3209 3210
  if (xid_cache_init())
  {
    sql_print_error("Out of memory");
    unireg_abort(1);
  }
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  if (ha_init())
  {
    sql_print_error("Can't init databases");
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    unireg_abort(1);
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  }
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  /*
    Check that the default storage engine is actually available.
  */
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  if (!ha_storage_engine_is_enabled(global_system_variables.table_type))
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  {
    if (!opt_bootstrap)
    {
      sql_print_error("Default storage engine (%s) is not available",
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                      global_system_variables.table_type->name);
3226 3227
      unireg_abort(1);
    }
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    global_system_variables.table_type= &myisam_hton;
3229 3230
  }

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  tc_log= (total_ha_2pc > 1 ? (opt_bin_log  ?
                               (TC_LOG *) &mysql_bin_log :
                               (TC_LOG *) &tc_log_mmap) :
           (TC_LOG *) &tc_log_dummy);
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  if (tc_log->open(opt_bin_logname))
  {
    sql_print_error("Can't init tc log");
    unireg_abort(1);
  }

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  if (ha_recover(0))
  {
    unireg_abort(1);
  }

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  if (opt_bin_log && mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0,
                                        WRITE_CACHE, 0, max_binlog_size, 0))
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    unireg_abort(1);
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#ifdef HAVE_REPLICATION
  if (opt_bin_log && expire_logs_days)
3253
  {
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    long purge_time= time(0) - expire_logs_days*24*60*60;
    if (purge_time >= 0)
      mysql_bin_log.purge_logs_before_date(purge_time);
3257
  }
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#endif

  if (opt_myisam_log)
    (void) mi_log(1);
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3263 3264
  /* call ha_init_key_cache() on all key caches to init them */
  process_key_caches(&ha_init_key_cache);
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#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY)
3267
  if (locked_in_memory && !getuid())
3268
  {
3269
    if (setreuid((uid_t)-1, 0) == -1)
3270
    {                        // this should never happen
3271
      sql_perror("setreuid");
3272 3273
      unireg_abort(1);
    }
3274 3275
    if (mlockall(MCL_CURRENT))
    {
3276
      if (global_system_variables.log_warnings)
3277
	sql_print_warning("Failed to lock memory. Errno: %d\n",errno);
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      locked_in_memory= 0;
3279
    }
3280 3281
    if (user_info)
      set_user(mysqld_user, user_info);
3282
  }
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  else
3284
#endif
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    locked_in_memory=0;
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3287
  ft_init_stopwords();
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  init_max_user_conn();
3290
  init_update_queries();
3291
  DBUG_RETURN(0);
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}
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3294

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static void create_maintenance_thread()
{
  if (
3298
#ifdef WITH_BERKELEY_STORAGE_ENGINE
3299
      (have_berkeley_db == SHOW_OPTION_YES) ||
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#endif
      (flush_time && flush_time != ~(ulong) 0L))
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  {
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    pthread_t hThread;
    if (pthread_create(&hThread,&connection_attrib,handle_manager,0))
3305
      sql_print_warning("Can't create thread to manage maintenance");
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  }
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}

3309

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static void create_shutdown_thread()
{
3312
#if !defined(EMBEDDED_LIBRARY)
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#ifdef __WIN__
3314 3315 3316
  hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
3317
    sql_print_warning("Can't create thread to handle shutdown requests");
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3319 3320
  // On "Stop Service" we have to do regular shutdown
  Service.SetShutdownEvent(hEventShutdown);
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#endif
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#ifdef OS2
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  pthread_cond_init(&eventShutdown, NULL);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
3326
    sql_print_warning("Can't create thread to handle shutdown requests");
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#endif
3328
#endif // EMBEDDED_LIBRARY 
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}
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3331 3332 3333

#if defined(__NT__) || defined(HAVE_SMEM)
static void handle_connections_methods()
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{
3335 3336 3337
  pthread_t hThread;
  DBUG_ENTER("handle_connections_methods");
#ifdef __NT__
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  if (hPipe == INVALID_HANDLE_VALUE &&
3339 3340
      (!have_tcpip || opt_disable_networking) &&
      !opt_enable_shared_memory)
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  {
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    sql_print_error("TCP/IP, --shared-memory, or --named-pipe should be configured on NT OS");
3343
    unireg_abort(1);				// Will not return
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  }
3345 3346 3347 3348 3349 3350 3351
#endif

  pthread_mutex_lock(&LOCK_thread_count);
  (void) pthread_cond_init(&COND_handler_count,NULL);
  handler_count=0;
#ifdef __NT__
  if (hPipe != INVALID_HANDLE_VALUE)
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  {
3353 3354 3355
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_namedpipes, 0))
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    {
3357
      sql_print_warning("Can't create thread to handle named pipes");
3358 3359 3360 3361 3362 3363 3364 3365 3366 3367
      handler_count--;
    }
  }
#endif /* __NT__ */
  if (have_tcpip && !opt_disable_networking)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_sockets, 0))
    {
3368
      sql_print_warning("Can't create thread to handle TCP/IP");
3369 3370 3371 3372 3373 3374 3375 3376 3377 3378
      handler_count--;
    }
  }
#ifdef HAVE_SMEM
  if (opt_enable_shared_memory)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_shared_memory, 0))
    {
3379
      sql_print_warning("Can't create thread to handle shared memory");
3380
      handler_count--;
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    }
  }
3383
#endif 
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3385 3386 3387 3388 3389
  while (handler_count > 0)
    pthread_cond_wait(&COND_handler_count,&LOCK_thread_count);
  pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_VOID_RETURN;
}
3390 3391 3392 3393 3394 3395 3396 3397 3398 3399

void decrement_handler_count()
{
  pthread_mutex_lock(&LOCK_thread_count);
  handler_count--;
  pthread_mutex_unlock(&LOCK_thread_count);
  pthread_cond_signal(&COND_handler_count);
}
#else
#define decrement_handler_count()
3400 3401 3402
#endif /* defined(__NT__) || defined(HAVE_SMEM) */


3403
#ifndef EMBEDDED_LIBRARY
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#ifdef __WIN__
int win_main(int argc, char **argv)
#else
int main(int argc, char **argv)
#endif
{
  DEBUGGER_OFF;

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  rpl_filter= new Rpl_filter;
  binlog_filter= new Rpl_filter;
3414 3415 3416 3417 3418 3419
  if (!rpl_filter || !binlog_filter) 
  {
    sql_perror("Could not allocate replication and binlog filters");
    exit(1);
  }

3420 3421
  MY_INIT(argv[0]);		// init my_sys library & pthreads

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#ifdef _CUSTOMSTARTUPCONFIG_
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  if (_cust_check_startup())
  {
    / * _cust_check_startup will report startup failure error * /
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    exit(1);
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  }
#endif
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3430
#ifdef	__WIN__
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  /*
    Before performing any socket operation (like retrieving hostname
    in init_common_variables we have to call WSAStartup
  */
3435 3436 3437 3438
  {
    WSADATA WsaData;
    if (SOCKET_ERROR == WSAStartup (0x0101, &WsaData))
    {
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      /* errors are not read yet, so we use english text here */
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      my_message(ER_WSAS_FAILED, "WSAStartup Failed", MYF(0));
      unireg_abort(1);
    }
  }
#endif /* __WIN__ */

3446 3447 3448
  if (init_common_variables(MYSQL_CONFIG_NAME,
			    argc, argv, load_default_groups))
    unireg_abort(1);				// Will do exit
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  init_signals();
  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_setprio(pthread_self(),CONNECT_PRIOR);
3453
#if defined(__ia64__) || defined(__ia64)
3454 3455 3456 3457
  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
3458 3459
  pthread_attr_setstacksize(&connection_attrib,thread_stack*2);
#else
3460
  pthread_attr_setstacksize(&connection_attrib,thread_stack);
3461
#endif
3462 3463 3464 3465 3466
#ifdef HAVE_PTHREAD_ATTR_GETSTACKSIZE
  {
    /* Retrieve used stack size;  Needed for checking stack overflows */
    size_t stack_size= 0;
    pthread_attr_getstacksize(&connection_attrib, &stack_size);
3467 3468 3469
#if defined(__ia64__) || defined(__ia64)
    stack_size/= 2;
#endif
3470 3471 3472 3473
    /* We must check if stack_size = 0 as Solaris 2.9 can return 0 here */
    if (stack_size && stack_size < thread_stack)
    {
      if (global_system_variables.log_warnings)
3474
	sql_print_warning("Asked for %ld thread stack, but got %ld",
3475 3476 3477 3478
			  thread_stack, stack_size);
#if defined(__ia64__) || defined(__ia64)
      thread_stack= stack_size*2;
#else
3479
      thread_stack= stack_size;
3480
#endif
3481 3482 3483
    }
  }
#endif
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3485
  (void) thr_setconcurrency(concurrency);	// 10 by default
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3487 3488
  select_thread=pthread_self();
  select_thread_in_use=1;
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  init_ssl();

#ifdef HAVE_LIBWRAP
  libwrapName= my_progname+dirname_length(my_progname);
  openlog(libwrapName, LOG_PID, LOG_AUTH);
#endif

  /*
    We have enough space for fiddling with the argv, continue
  */
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  check_data_home(mysql_real_data_home);
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  if (my_setwd(mysql_real_data_home,MYF(MY_WME)))
    unireg_abort(1);				/* purecov: inspected */
  mysql_data_home= mysql_data_home_buff;
  mysql_data_home[0]=FN_CURLIB;		// all paths are relative from here
  mysql_data_home[1]=0;
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  if ((user_info= check_user(mysqld_user)))
  {
#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
    if (locked_in_memory) // getuid() == 0 here
      set_effective_user(user_info);
    else
#endif
      set_user(mysqld_user, user_info);
  }

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  if (opt_bin_log && !server_id)
  {
    server_id= !master_host ? 1 : 2;
#ifdef EXTRA_DEBUG
3520
    switch (server_id) {
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    case 1:
3522 3523
      sql_print_warning("\
You have enabled the binary log, but you haven't set server-id to \
3524 3525
a non-zero value: we force server id to 1; updates will be logged to the \
binary log, but connections from slaves will not be accepted.");
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3526 3527
      break;
    case 2:
3528 3529
      sql_print_warning("\
You should set server-id to a non-0 value if master_host is set; \
3530
we force server id to 2, but this MySQL server will not act as a slave.");
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      break;
    }
3533
#endif
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  }

  if (init_server_components())
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    unireg_abort(1);
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  network_init();

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#ifdef __WIN__
  if (!opt_console)
  {
3544 3545
    freopen(log_error_file,"a+",stdout);
    freopen(log_error_file,"a+",stderr);
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    FreeConsole();				// Remove window
3547
  }
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#endif

3550 3551 3552 3553 3554 3555
  /*
   Initialize my_str_malloc() and my_str_free()
  */
  my_str_malloc= &my_str_malloc_mysqld;
  my_str_free= &my_str_free_mysqld;

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  /*
    init signals & alarm
    After this we can't quit by a simple unireg_abort
  */
3560
  error_handler_hook= my_message_sql;
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  start_signal_handler();				// Creates pidfile
3562
  if (acl_init(opt_noacl) ||
3563
      my_tz_init((THD *)0, default_tz_name, opt_bootstrap))
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  {
    abort_loop=1;
    select_thread_in_use=0;
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#ifndef __NETWARE__
    (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL);
#endif /* __NETWARE__ */
3570

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    if (!opt_bootstrap)
      (void) my_delete(pidfile_name,MYF(MY_WME));	// Not needed anymore
3573

3574
    if (unix_sock != INVALID_SOCKET)
3575
      unlink(mysqld_unix_port);
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    exit(1);
  }
  if (!opt_noacl)
3579
    (void) grant_init();
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  if (!opt_noacl)
3582
  {
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    plugin_load();
3584
#ifdef HAVE_DLOPEN
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    udf_init();
#endif
3587
  }
3588
  init_status_vars();
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  if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
    opt_skip_slave_start= 1;
3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601
  /*
    init_slave() must be called after the thread keys are created.
    Some parts of the code (e.g. SHOW STATUS LIKE 'slave_running' and other
    places) assume that active_mi != 0, so let's fail if it's 0 (out of
    memory); a message has already been printed.
  */
  if (init_slave() && !active_mi)
  {
    end_thr_alarm(1);				// Don't allow alarms
    unireg_abort(1);
  }
3602

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  if (opt_bootstrap)
  {
3605
    select_thread_in_use= 0;                    // Allow 'kill' to work
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    bootstrap(stdin);
3607
    end_thr_alarm(1);				// Don't allow alarms
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    unireg_abort(bootstrap_error ? 1 : 0);
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  }
  if (opt_init_file)
  {
    if (read_init_file(opt_init_file))
    {
3614
      end_thr_alarm(1);				// Don't allow alarms
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      unireg_abort(1);
    }
  }
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  create_shutdown_thread();
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  create_maintenance_thread();

3622
  sql_print_information(ER(ER_STARTUP),my_progname,server_version,
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                        ((unix_sock == INVALID_SOCKET) ? (char*) ""
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                                                       : mysqld_unix_port),
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                         mysqld_port,
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                         MYSQL_COMPILATION_COMMENT);
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  // Signal threads waiting for server to be started
  mysqld_server_started= 1;
  pthread_cond_signal(&COND_server_started);

3632 3633
#if defined(__NT__) || defined(HAVE_SMEM)
  handle_connections_methods();
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#else
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#ifdef __WIN__
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  if (!have_tcpip || opt_disable_networking)
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  {
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    sql_print_error("TCP/IP unavailable or disabled with --skip-networking; no available interfaces");
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    unireg_abort(1);
  }
#endif
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  handle_connections_sockets(0);
#endif /* __NT__ */

  /* (void) pthread_attr_destroy(&connection_attrib); */
3646
  
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  DBUG_PRINT("quit",("Exiting main thread"));

#ifndef __WIN__
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#ifdef EXTRA_DEBUG2
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  sql_print_error("Before Lock_thread_count");
#endif
  (void) pthread_mutex_lock(&LOCK_thread_count);
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  DBUG_PRINT("quit", ("Got thread_count mutex"));
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  select_thread_in_use=0;			// For close_connections
  (void) pthread_mutex_unlock(&LOCK_thread_count);
3657
  (void) pthread_cond_broadcast(&COND_thread_count);
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#ifdef EXTRA_DEBUG2
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  sql_print_error("After lock_thread_count");
#endif
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#endif /* __WIN__ */
3662

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  /* Wait until cleanup is done */
  (void) pthread_mutex_lock(&LOCK_thread_count);
  while (!ready_to_exit)
    pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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3668 3669

#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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  if (Service.IsNT() && start_mode)
    Service.Stop();
  else
  {
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    Service.SetShutdownEvent(0);
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    if (hEventShutdown)
      CloseHandle(hEventShutdown);
  }
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#endif
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  clean_up(1);
3680
  wait_for_signal_thread_to_end();
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  clean_up_mutexes();
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  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
3683
 
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  exit(0);
  return(0);					/* purecov: deadcode */
}

3688
#endif /* EMBEDDED_LIBRARY */
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3691 3692 3693 3694 3695
/****************************************************************************
  Main and thread entry function for Win32
  (all this is needed only to run mysqld as a service on WinNT)
****************************************************************************/

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#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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3697 3698
int mysql_service(void *p)
{
3699 3700 3701 3702
  if (use_opt_args)
    win_main(opt_argc, opt_argv);
  else
    win_main(Service.my_argc, Service.my_argv);
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  return 0;
}

3706 3707 3708 3709 3710 3711 3712 3713

/* Quote string if it contains space, else copy */

static char *add_quoted_string(char *to, const char *from, char *to_end)
{
  uint length= (uint) (to_end-to);

  if (!strchr(from, ' '))
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    return strmake(to, from, length-1);
  return strxnmov(to, length-1, "\"", from, "\"", NullS);
3716 3717 3718
}


3719 3720 3721 3722 3723
/*
  Handle basic handling of services, like installation and removal

  SYNOPSIS
    default_service_handling()
3724
    argv		Pointer to argument list
3725 3726 3727
    servicename		Internal name of service
    displayname		Display name of service (in taskbar ?)
    file_path		Path to this program
3728
    startup_option	Startup option to mysqld
3729 3730 3731 3732 3733 3734

  RETURN VALUES
    0		option handled
    1		Could not handle option
 */

3735 3736 3737 3738 3739
static bool
default_service_handling(char **argv,
			 const char *servicename,
			 const char *displayname,
			 const char *file_path,
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			 const char *extra_opt,
			 const char *account_name)
3742
{
3743
  char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end;
3744
  end= path_and_service + sizeof(path_and_service)-3;
3745 3746 3747 3748 3749 3750 3751 3752 3753

  /* We have to quote filename if it contains spaces */
  pos= add_quoted_string(path_and_service, file_path, end);
  if (*extra_opt)
  {
    /* Add (possible quoted) option after file_path */
    *pos++= ' ';
    pos= add_quoted_string(pos, extra_opt, end);
  }
3754 3755
  /* We must have servicename last */
  *pos++= ' ';
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  (void) add_quoted_string(pos, servicename, end);
3757

3758 3759
  if (Service.got_service_option(argv, "install"))
  {
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3760 3761
    Service.Install(1, servicename, displayname, path_and_service,
                    account_name);
3762 3763 3764 3765
    return 0;
  }
  if (Service.got_service_option(argv, "install-manual"))
  {
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    Service.Install(0, servicename, displayname, path_and_service,
                    account_name);
3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778
    return 0;
  }
  if (Service.got_service_option(argv, "remove"))
  {
    Service.Remove(servicename);
    return 0;
  }
  return 1;
}


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int main(int argc, char **argv)
{
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  /*
    When several instances are running on the same machine, we
    need to have an  unique  named  hEventShudown  through the
    application PID e.g.: MySQLShutdown1890; MySQLShutdown2342
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3785
  */
3786
  int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name,
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3787 3788
                                                  "MySQLShutdown"), 10);

3789 3790 3791
  /* Must be initialized early for comparison of service name */
  system_charset_info= &my_charset_utf8_general_ci;

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  if (Service.GetOS())	/* true NT family */
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  {
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    char file_path[FN_REFLEN];
3795
    my_path(file_path, argv[0], "");		      /* Find name in path */
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    fn_format(file_path,argv[0],file_path,"",
	      MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_RESOLVE_SYMLINKS);
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3798

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    if (argc == 2)
3800
    {
3801
      if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME,
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3802
				   file_path, "", NULL))
3803
	return 0;
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      if (Service.IsService(argv[1]))        /* Start an optional service */
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      {
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3806 3807 3808 3809 3810 3811
	/*
	  Only add the service name to the groups read from the config file
	  if it's not "MySQL". (The default service name should be 'mysqld'
	  but we started a bad tradition by calling it MySQL from the start
	  and we are now stuck with it.
	*/
3812
	if (my_strcasecmp(system_charset_info, argv[1],"mysql"))
3813
	  load_default_groups[load_default_groups_sz-2]= argv[1];
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3814
        start_mode= 1;
3815
        Service.Init(argv[1], mysql_service);
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3816 3817 3818 3819
        return 0;
      }
    }
    else if (argc == 3) /* install or remove any optional service */
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    {
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3821 3822
      if (!default_service_handling(argv, argv[2], argv[2], file_path, "",
                                    NULL))
3823 3824
	return 0;
      if (Service.IsService(argv[2]))
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3825
      {
3826 3827 3828 3829
	/*
	  mysqld was started as
	  mysqld --defaults-file=my_path\my.ini service-name
	*/
3830
	use_opt_args=1;
3831
	opt_argc= 2;				// Skip service-name
3832 3833
	opt_argv=argv;
	start_mode= 1;
3834
	if (my_strcasecmp(system_charset_info, argv[2],"mysql"))
3835
	  load_default_groups[load_default_groups_sz-2]= argv[2];
3836
	Service.Init(argv[2], mysql_service);
3837
	return 0;
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3838 3839
      }
    }
unknown's avatar
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3840
    else if (argc == 4 || argc == 5)
3841 3842
    {
      /*
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3843 3844 3845 3846 3847
        This may seem strange, because we handle --local-service while
        preserving 4.1's behavior of allowing any one other argument that is
        passed to the service on startup. (The assumption is that this is
        --defaults-file=file, but that was not enforced in 4.1, so we don't
        enforce it here.)
3848
      */
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3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863
      const char *extra_opt= NullS;
      const char *account_name = NullS;
      int index;
      for (index = 3; index < argc; index++)
      {
        if (!strcmp(argv[index], "--local-service"))
          account_name= "NT AUTHORITY\\LocalService";
        else
          extra_opt= argv[index];
      }

      if (argc == 4 || account_name)
        if (!default_service_handling(argv, argv[2], argv[2], file_path,
                                      extra_opt, account_name))
          return 0;
3864
    }
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3865
    else if (argc == 1 && Service.IsService(MYSQL_SERVICENAME))
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3866
    {
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      /* start the default service */
      start_mode= 1;
      Service.Init(MYSQL_SERVICENAME, mysql_service);
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3870 3871 3872
      return 0;
    }
  }
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  /* Start as standalone server */
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3874 3875 3876 3877 3878 3879 3880 3881
  Service.my_argc=argc;
  Service.my_argv=argv;
  mysql_service(NULL);
  return 0;
}
#endif


3882 3883 3884 3885
/*
  Execute all commands from a file. Used by the mysql_install_db script to
  create MySQL privilege tables without having to start a full MySQL server.
*/
3886

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3887
static void bootstrap(FILE *file)
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{
3889
  DBUG_ENTER("bootstrap");
3890

3891
  THD *thd= new THD;
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  thd->bootstrap=1;
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3893
  my_net_init(&thd->net,(st_vio*) 0);
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  thd->max_client_packet_length= thd->net.max_packet;
3895
  thd->security_ctx->master_access= ~(ulong)0;
3896
  thd->thread_id=thread_id++;
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3897
  thread_count++;
3898 3899

  bootstrap_file=file;
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#ifndef EMBEDDED_LIBRARY			// TODO:  Enable this
3901 3902 3903
  if (pthread_create(&thd->real_id,&connection_attrib,handle_bootstrap,
		     (void*) thd))
  {
3904
    sql_print_warning("Can't create thread to handle bootstrap");
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3905 3906
    bootstrap_error=-1;
    DBUG_VOID_RETURN;
3907 3908 3909 3910 3911 3912 3913 3914 3915
  }
  /* Wait for thread to die */
  (void) pthread_mutex_lock(&LOCK_thread_count);
  while (thread_count)
  {
    (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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3916 3917 3918 3919 3920
#else
  thd->mysql= 0;
  handle_bootstrap((void *)thd);
#endif

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3921
  DBUG_VOID_RETURN;
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3922 3923
}

3924

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static bool read_init_file(char *file_name)
{
  FILE *file;
  DBUG_ENTER("read_init_file");
  DBUG_PRINT("enter",("name: %s",file_name));
  if (!(file=my_fopen(file_name,O_RDONLY,MYF(MY_WME))))
    return(1);
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3932
  bootstrap(file);
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  (void) my_fclose(file,MYF(MY_WME));
  return 0;
}


3938
#ifndef EMBEDDED_LIBRARY
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static void create_new_thread(THD *thd)
{
  DBUG_ENTER("create_new_thread");

  NET *net=&thd->net;				// For easy ref
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  net->read_timeout = (uint) connect_timeout;
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  if (protocol_version > 9)
    net->return_errno=1;

  /* don't allow too many connections */
  if (thread_count - delayed_insert_threads >= max_connections+1 || abort_loop)
  {
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3951
    DBUG_PRINT("error",("Too many connections"));
3952
    close_connection(thd, ER_CON_COUNT_ERROR, 1);
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3953 3954 3955
    delete thd;
    DBUG_VOID_RETURN;
  }
3956
  pthread_mutex_lock(&LOCK_thread_count);
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3957
  thd->thread_id=thread_id++;
3958

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  thd->real_id=pthread_self();			// Keep purify happy

  /* Start a new thread to handle connection */
3962
#ifdef ONE_THREAD
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  if (test_flags & TEST_NO_THREADS)		// For debugging under Linux
  {
    thread_cache_size=0;			// Safety
    thread_count++;
    threads.append(thd);
    thd->real_id=pthread_self();
    (void) pthread_mutex_unlock(&LOCK_thread_count);
    handle_one_connection((void*) thd);
  }
  else
#endif
  {
    if (cached_thread_count > wake_thread)
    {
      start_cached_thread(thd);
    }
    else
    {
      int error;
      thread_count++;
3983
      thread_created++;
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      threads.append(thd);
3985 3986
      if (thread_count-delayed_insert_threads > max_used_connections)
        max_used_connections=thread_count-delayed_insert_threads;
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      DBUG_PRINT("info",(("creating thread %d"), thd->thread_id));
      thd->connect_time = time(NULL);
      if ((error=pthread_create(&thd->real_id,&connection_attrib,
				handle_one_connection,
				(void*) thd)))
      {
	DBUG_PRINT("error",
		   ("Can't create thread to handle request (error %d)",
		    error));
	thread_count--;
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	thd->killed= THD::KILL_CONNECTION;			// Safety
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	(void) pthread_mutex_unlock(&LOCK_thread_count);
3999
	statistic_increment(aborted_connects,&LOCK_status);
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4000
	net_printf_error(thd, ER_CANT_CREATE_THREAD, error);
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	(void) pthread_mutex_lock(&LOCK_thread_count);
4002
	close_connection(thd,0,0);
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4003 4004 4005 4006 4007
	delete thd;
	(void) pthread_mutex_unlock(&LOCK_thread_count);
	DBUG_VOID_RETURN;
      }
    }
4008 4009
    (void) pthread_mutex_unlock(&LOCK_thread_count);

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4010
  }
4011
  DBUG_PRINT("info",("Thread created"));
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  DBUG_VOID_RETURN;
}
4014 4015
#endif /* EMBEDDED_LIBRARY */

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#ifdef SIGNALS_DONT_BREAK_READ
inline void kill_broken_server()
{
  /* hack to get around signals ignored in syscalls for problem OS's */
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4021 4022 4023 4024
  if (
#if !defined(__NETWARE__)
      unix_sock == INVALID_SOCKET ||
#endif
4025
      (!opt_disable_networking && ip_sock == INVALID_SOCKET))
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4026 4027
  {
    select_thread_in_use = 0;
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    /* The following call will never return */
    kill_server(IF_NETWARE(MYSQL_KILL_SIGNAL, (void*) MYSQL_KILL_SIGNAL));
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  }
}
#define MAYBE_BROKEN_SYSCALL kill_broken_server();
#else
#define MAYBE_BROKEN_SYSCALL
#endif
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	/* Handle new connections and spawn new process to handle them */

4039
#ifndef EMBEDDED_LIBRARY
4040
pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused)))
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{
  my_socket sock,new_sock;
  uint error_count=0;
  uint max_used_connection= (uint) (max(ip_sock,unix_sock)+1);
  fd_set readFDs,clientFDs;
  THD *thd;
  struct sockaddr_in cAddr;
  int ip_flags=0,socket_flags=0,flags;
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  st_vio *vio_tmp;
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  DBUG_ENTER("handle_connections_sockets");

  LINT_INIT(new_sock);

  (void) my_pthread_getprio(pthread_self());		// For debugging

  FD_ZERO(&clientFDs);
  if (ip_sock != INVALID_SOCKET)
  {
    FD_SET(ip_sock,&clientFDs);
#ifdef HAVE_FCNTL
    ip_flags = fcntl(ip_sock, F_GETFL, 0);
#endif
  }
#ifdef HAVE_SYS_UN_H
  FD_SET(unix_sock,&clientFDs);
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#ifdef HAVE_FCNTL
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  socket_flags=fcntl(unix_sock, F_GETFL, 0);
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#endif
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#endif

  DBUG_PRINT("general",("Waiting for connections."));
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  MAYBE_BROKEN_SYSCALL;
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  while (!abort_loop)
  {
    readFDs=clientFDs;
4076
#ifdef HPUX10
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    if (select(max_used_connection,(int*) &readFDs,0,0,0) < 0)
      continue;
#else
    if (select((int) max_used_connection,&readFDs,0,0,0) < 0)
    {
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      if (socket_errno != SOCKET_EINTR)
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      {
	if (!select_errors++ && !abort_loop)	/* purecov: inspected */
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	  sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */
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      }
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      MAYBE_BROKEN_SYSCALL
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      continue;
    }
4090
#endif	/* HPUX10 */
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    if (abort_loop)
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    {
      MAYBE_BROKEN_SYSCALL;
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      break;
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    }
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4097
    /* Is this a new connection request ? */
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#ifdef HAVE_SYS_UN_H
    if (FD_ISSET(unix_sock,&readFDs))
    {
      sock = unix_sock;
      flags= socket_flags;
    }
    else
#endif
    {
      sock = ip_sock;
      flags= ip_flags;
    }

#if !defined(NO_FCNTL_NONBLOCK)
    if (!(test_flags & TEST_BLOCKING))
    {
#if defined(O_NONBLOCK)
      fcntl(sock, F_SETFL, flags | O_NONBLOCK);
#elif defined(O_NDELAY)
      fcntl(sock, F_SETFL, flags | O_NDELAY);
#endif
    }
#endif /* NO_FCNTL_NONBLOCK */
    for (uint retry=0; retry < MAX_ACCEPT_RETRY; retry++)
    {
      size_socket length=sizeof(struct sockaddr_in);
      new_sock = accept(sock, my_reinterpret_cast(struct sockaddr *) (&cAddr),
			&length);
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#ifdef __NETWARE__ 
      // TODO: temporary fix, waiting for TCP/IP fix - DEFECT000303149
      if ((new_sock == INVALID_SOCKET) && (socket_errno == EINVAL))
      {
        kill_server(SIGTERM);
      }
#endif
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      if (new_sock != INVALID_SOCKET ||
	  (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN))
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	break;
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      MAYBE_BROKEN_SYSCALL;
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#if !defined(NO_FCNTL_NONBLOCK)
      if (!(test_flags & TEST_BLOCKING))
      {
	if (retry == MAX_ACCEPT_RETRY - 1)
	  fcntl(sock, F_SETFL, flags);		// Try without O_NONBLOCK
      }
#endif
    }
#if !defined(NO_FCNTL_NONBLOCK)
    if (!(test_flags & TEST_BLOCKING))
      fcntl(sock, F_SETFL, flags);
#endif
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    if (new_sock == INVALID_SOCKET)
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    {
      if ((error_count++ & 255) == 0)		// This can happen often
	sql_perror("Error in accept");
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      MAYBE_BROKEN_SYSCALL;
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      if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE)
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	sleep(1);				// Give other threads some time
      continue;
    }

#ifdef HAVE_LIBWRAP
    {
      if (sock == ip_sock)
      {
	struct request_info req;
	signal(SIGCHLD, SIG_DFL);
	request_init(&req, RQ_DAEMON, libwrapName, RQ_FILE, new_sock, NULL);
4166 4167
	fromhost(&req);
	if (!hosts_access(&req))
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	{
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	  /*
	    This may be stupid but refuse() includes an exit(0)
	    which we surely don't want...
	    clean_exit() - same stupid thing ...
	  */
4174
	  syslog(deny_severity, "refused connect from %s",
4175
		 eval_client(&req));
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	  /*
	    C++ sucks (the gibberish in front just translates the supplied
	    sink function pointer in the req structure from a void (*sink)();
	    to a void(*sink)(int) if you omit the cast, the C++ compiler
	    will cry...
	  */
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	  if (req.sink)
	    ((void (*)(int))req.sink)(req.fd);

4186
	  (void) shutdown(new_sock,2);
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	  (void) closesocket(new_sock);
	  continue;
	}
      }
    }
#endif /* HAVE_LIBWRAP */

    {
      size_socket dummyLen;
      struct sockaddr dummy;
      dummyLen = sizeof(struct sockaddr);
      if (getsockname(new_sock,&dummy, &dummyLen) < 0)
      {
	sql_perror("Error on new connection socket");
	(void) shutdown(new_sock,2);
	(void) closesocket(new_sock);
	continue;
      }
    }

    /*
    ** Don't allow too many connections
    */

    if (!(thd= new THD))
    {
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      (void) shutdown(new_sock,2);
      VOID(closesocket(new_sock));
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      continue;
    }
    if (!(vio_tmp=vio_new(new_sock,
4218
			  sock == unix_sock ? VIO_TYPE_SOCKET :
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			  VIO_TYPE_TCPIP,
4220
			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
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	my_net_init(&thd->net,vio_tmp))
    {
      if (vio_tmp)
	vio_delete(vio_tmp);
      else
      {
	(void) shutdown(new_sock,2);
	(void) closesocket(new_sock);
      }
      delete thd;
      continue;
    }
    if (sock == unix_sock)
4234
      thd->security_ctx->host=(char*) my_localhost;
4235 4236 4237 4238 4239 4240
#ifdef __WIN__
    /* Set default wait_timeout */
    ulong wait_timeout= global_system_variables.net_wait_timeout * 1000;
    (void) setsockopt(new_sock, SOL_SOCKET, SO_RCVTIMEO, (char*)&wait_timeout,
                    sizeof(wait_timeout));
#endif
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    create_new_thread(thd);
  }

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#ifdef OS2
  // kill server must be invoked from thread 1!
  kill_server(MYSQL_KILL_SIGNAL);
#endif
4248
  decrement_handler_count();
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  DBUG_RETURN(0);
}


#ifdef __NT__
4254
pthread_handler_t handle_connections_namedpipes(void *arg)
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{
  HANDLE hConnectedPipe;
  BOOL fConnected;
  THD *thd;
  my_thread_init();
  DBUG_ENTER("handle_connections_namedpipes");
  (void) my_pthread_getprio(pthread_self());		// For debugging

  DBUG_PRINT("general",("Waiting for named pipe connections."));
  while (!abort_loop)
  {
    /* wait for named pipe connection */
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    fConnected = ConnectNamedPipe(hPipe, NULL);
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    if (abort_loop)
      break;
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    if (!fConnected)
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      fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
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4272
    if (!fConnected)
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    {
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      CloseHandle(hPipe);
      if ((hPipe= CreateNamedPipe(pipe_name,
                                  PIPE_ACCESS_DUPLEX,
                                  PIPE_TYPE_BYTE |
                                  PIPE_READMODE_BYTE |
                                  PIPE_WAIT,
                                  PIPE_UNLIMITED_INSTANCES,
                                  (int) global_system_variables.
                                  net_buffer_length,
                                  (int) global_system_variables.
                                  net_buffer_length,
                                  NMPWAIT_USE_DEFAULT_WAIT,
                                  &saPipeSecurity)) ==
	  INVALID_HANDLE_VALUE)
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      {
	sql_perror("Can't create new named pipe!");
	break;					// Abort
      }
    }
    hConnectedPipe = hPipe;
    /* create new pipe for new connection */
4295
    if ((hPipe = CreateNamedPipe(pipe_name,
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				 PIPE_ACCESS_DUPLEX,
				 PIPE_TYPE_BYTE |
				 PIPE_READMODE_BYTE |
				 PIPE_WAIT,
				 PIPE_UNLIMITED_INSTANCES,
4301 4302
				 (int) global_system_variables.net_buffer_length,
				 (int) global_system_variables.net_buffer_length,
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				 NMPWAIT_USE_DEFAULT_WAIT,
				 &saPipeSecurity)) ==
	INVALID_HANDLE_VALUE)
    {
      sql_perror("Can't create new named pipe!");
      hPipe=hConnectedPipe;
      continue;					// We have to try again
    }

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4312
    if (!(thd = new THD))
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    {
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      DisconnectNamedPipe(hConnectedPipe);
      CloseHandle(hConnectedPipe);
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      continue;
    }
    if (!(thd->net.vio = vio_new_win32pipe(hConnectedPipe)) ||
	my_net_init(&thd->net, thd->net.vio))
    {
4321
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
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      delete thd;
      continue;
    }
4325 4326
    /* Host is unknown */
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0));
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    create_new_thread(thd);
  }

4330
  decrement_handler_count();
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  DBUG_RETURN(0);
}
#endif /* __NT__ */

4335

4336
/*
4337 4338 4339
  Thread of shared memory's service

  SYNOPSIS
4340
    handle_connections_shared_memory()
4341 4342
    arg                              Arguments of thread
*/
4343

4344
#ifdef HAVE_SMEM
4345
pthread_handler_t handle_connections_shared_memory(void *arg)
4346
{
4347 4348
  /* file-mapping object, use for create shared memory */
  HANDLE handle_connect_file_map= 0;
4349
  char  *handle_connect_map= 0;                 // pointer on shared memory
4350 4351 4352
  HANDLE event_connect_answer= 0;
  ulong smem_buffer_length= shared_memory_buffer_length + 4;
  ulong connect_number= 1;
4353 4354 4355
  char tmp[63];
  char *suffix_pos;
  char connect_number_char[22], *p;
4356
  const char *errmsg= 0;
4357
  SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0;
4358 4359 4360 4361
  my_thread_init();
  DBUG_ENTER("handle_connections_shared_memorys");
  DBUG_PRINT("general",("Waiting for allocated shared memory."));

4362 4363 4364 4365 4366 4367 4368 4369
  if (my_security_attr_create(&sa_event, &errmsg,
                              GENERIC_ALL, SYNCHRONIZE | EVENT_MODIFY_STATE))
    goto error;

  if (my_security_attr_create(&sa_mapping, &errmsg,
                             GENERIC_ALL, FILE_MAP_READ | FILE_MAP_WRITE))
    goto error;

4370 4371 4372 4373 4374 4375 4376
  /*
    The name of event and file-mapping events create agree next rule:
      shared_memory_base_name+unique_part
    Where:
      shared_memory_base_name is unique value for each server
      unique_part is unique value for each object (events and file-mapping)
  */
4377
  suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS);
4378
  strmov(suffix_pos, "CONNECT_REQUEST");
4379 4380
  if ((smem_event_connect_request= CreateEvent(sa_event,
                                               FALSE, FALSE, tmp)) == 0)
4381
  {
4382
    errmsg= "Could not create request event";
4383 4384
    goto error;
  }
4385
  strmov(suffix_pos, "CONNECT_ANSWER");
4386
  if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4387
  {
4388
    errmsg="Could not create answer event";
4389 4390
    goto error;
  }
4391
  strmov(suffix_pos, "CONNECT_DATA");
4392 4393 4394
  if ((handle_connect_file_map=
       CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                         PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0)
4395
  {
4396
    errmsg= "Could not create file mapping";
4397 4398
    goto error;
  }
4399 4400 4401
  if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map,
						  FILE_MAP_WRITE,0,0,
						  sizeof(DWORD))) == 0)
4402
  {
4403
    errmsg= "Could not create shared memory service";
4404 4405 4406 4407 4408
    goto error;
  }

  while (!abort_loop)
  {
4409
    /* Wait a request from client */
4410
    WaitForSingleObject(smem_event_connect_request,INFINITE);
4411

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    /*
       it can be after shutdown command
    */
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    if (abort_loop)
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      goto error;
4417

4418 4419 4420 4421 4422 4423
    HANDLE handle_client_file_map= 0;
    char  *handle_client_map= 0;
    HANDLE event_client_wrote= 0;
    HANDLE event_client_read= 0;    // for transfer data server <-> client
    HANDLE event_server_wrote= 0;
    HANDLE event_server_read= 0;
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    HANDLE event_conn_closed= 0;
4425
    THD *thd= 0;
4426

4427
    p= int10_to_str(connect_number, connect_number_char, 10);
4428 4429 4430 4431 4432 4433 4434 4435 4436 4437
    /*
      The name of event and file-mapping events create agree next rule:
        shared_memory_base_name+unique_part+number_of_connection
        Where:
	  shared_memory_base_name is uniquel value for each server
	  unique_part is unique value for each object (events and file-mapping)
	  number_of_connection is connection-number between server and client
    */
    suffix_pos= strxmov(tmp,shared_memory_base_name,"_",connect_number_char,
			 "_",NullS);
4438
    strmov(suffix_pos, "DATA");
4439 4440 4441
    if ((handle_client_file_map=
         CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                           PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0)
4442
    {
4443
      errmsg= "Could not create file mapping";
4444 4445
      goto errorconn;
    }
4446 4447 4448
    if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map,
						  FILE_MAP_WRITE,0,0,
						  smem_buffer_length)) == 0)
4449
    {
4450
      errmsg= "Could not create memory map";
4451 4452 4453
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_WROTE");
4454
    if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4455
    {
4456
      errmsg= "Could not create client write event";
4457 4458 4459
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_READ");
4460
    if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4461
    {
4462
      errmsg= "Could not create client read event";
4463 4464 4465
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_READ");
4466
    if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4467
    {
4468
      errmsg= "Could not create server read event";
4469 4470 4471
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_WROTE");
4472 4473
    if ((event_server_wrote= CreateEvent(sa_event,
                                         FALSE, FALSE, tmp)) == 0)
4474
    {
4475
      errmsg= "Could not create server write event";
4476 4477
      goto errorconn;
    }
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    strmov(suffix_pos, "CONNECTION_CLOSED");
4479 4480
    if ((event_conn_closed= CreateEvent(sa_event,
                                        TRUE, FALSE, tmp)) == 0)
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    {
      errmsg= "Could not create closed connection event";
      goto errorconn;
    }
4485
    if (abort_loop)
4486
      goto errorconn;
4487 4488 4489
    if (!(thd= new THD))
      goto errorconn;
    /* Send number of connection to client */
4490
    int4store(handle_connect_map, connect_number);
4491
    if (!SetEvent(event_connect_answer))
4492
    {
4493
      errmsg= "Could not send answer event";
4494 4495
      goto errorconn;
    }
4496
    /* Set event that client should receive data */
4497 4498
    if (!SetEvent(event_client_read))
    {
4499
      errmsg= "Could not set client to read mode";
4500 4501
      goto errorconn;
    }
4502
    if (!(thd->net.vio= vio_new_win32shared_memory(&thd->net,
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4503 4504 4505 4506 4507 4508
                                                   handle_client_file_map,
                                                   handle_client_map,
                                                   event_client_wrote,
                                                   event_client_read,
                                                   event_server_wrote,
                                                   event_server_read,
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                                                   event_conn_closed)) ||
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                        my_net_init(&thd->net, thd->net.vio))
4511
    {
4512
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
4513 4514
      errmsg= 0;
      goto errorconn;
4515
    }
4516
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */
4517
    create_new_thread(thd);
4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529
    connect_number++;
    continue;

errorconn:
    /* Could not form connection;  Free used handlers/memort and retry */
    if (errmsg)
    {
      char buff[180];
      strxmov(buff, "Can't create shared memory connection: ", errmsg, ".",
	      NullS);
      sql_perror(buff);
    }
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4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543
    if (handle_client_file_map) 
      CloseHandle(handle_client_file_map);
    if (handle_client_map)
      UnmapViewOfFile(handle_client_map);
    if (event_server_wrote)
      CloseHandle(event_server_wrote);
    if (event_server_read)
      CloseHandle(event_server_read);
    if (event_client_wrote)
      CloseHandle(event_client_wrote);
    if (event_client_read)
      CloseHandle(event_client_read);
    if (event_conn_closed)
      CloseHandle(event_conn_closed);
4544
    delete thd;
4545
  }
4546 4547

  /* End shared memory handling */
4548
error:
4549 4550 4551 4552 4553 4554
  if (errmsg)
  {
    char buff[180];
    strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS);
    sql_perror(buff);
  }
4555 4556
  my_security_attr_free(sa_event);
  my_security_attr_free(sa_mapping);
4557 4558 4559
  if (handle_connect_map)	UnmapViewOfFile(handle_connect_map);
  if (handle_connect_file_map)	CloseHandle(handle_connect_file_map);
  if (event_connect_answer)	CloseHandle(event_connect_answer);
4560
  if (smem_event_connect_request) CloseHandle(smem_event_connect_request);
4561 4562

  decrement_handler_count();
4563 4564 4565
  DBUG_RETURN(0);
}
#endif /* HAVE_SMEM */
4566
#endif /* EMBEDDED_LIBRARY */
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4567

4568 4569 4570

/****************************************************************************
  Handle start options
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******************************************************************************/

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enum options_mysqld
4574
{
4575 4576 4577
  OPT_ISAM_LOG=256,            OPT_SKIP_NEW, 
  OPT_SKIP_GRANT,              OPT_SKIP_LOCK, 
  OPT_ENABLE_LOCK,             OPT_USE_LOCKING,
4578 4579
  OPT_SOCKET,                  OPT_UPDATE_LOG,
  OPT_BIN_LOG,                 OPT_SKIP_RESOLVE,
4580 4581
  OPT_SKIP_NETWORKING,         OPT_BIN_LOG_INDEX,
  OPT_BIND_ADDRESS,            OPT_PID_FILE,
4582
  OPT_SKIP_PRIOR,              OPT_BIG_TABLES,
4583 4584
  OPT_STANDALONE,              OPT_ONE_THREAD,
  OPT_CONSOLE,                 OPT_LOW_PRIORITY_UPDATES,
4585
  OPT_SKIP_HOST_CACHE,         OPT_SHORT_LOG_FORMAT,
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  OPT_FLUSH,                   OPT_SAFE,
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  OPT_BOOTSTRAP,               OPT_SKIP_SHOW_DB,
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  OPT_STORAGE_ENGINE,          OPT_INIT_FILE,
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  OPT_DELAY_KEY_WRITE_ALL,     OPT_SLOW_QUERY_LOG,
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  OPT_DELAY_KEY_WRITE,	       OPT_CHARSETS_DIR,
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  OPT_BDB_HOME,                OPT_BDB_LOG,
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  OPT_BDB_TMP,                 OPT_BDB_SYNC,
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  OPT_BDB_LOCK,                OPT_BDB,
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  OPT_BDB_NO_RECOVER,          OPT_BDB_SHARED,
  OPT_BDB_DATA_DIRECT,         OPT_BDB_LOG_DIRECT,
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  OPT_MASTER_HOST,             OPT_MASTER_USER,
  OPT_MASTER_PASSWORD,         OPT_MASTER_PORT,
  OPT_MASTER_INFO_FILE,        OPT_MASTER_CONNECT_RETRY,
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  OPT_MASTER_RETRY_COUNT,      OPT_LOG_TC, OPT_LOG_TC_SIZE,
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  OPT_MASTER_SSL,              OPT_MASTER_SSL_KEY,
  OPT_MASTER_SSL_CERT,         OPT_MASTER_SSL_CAPATH,
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  OPT_MASTER_SSL_CIPHER,       OPT_MASTER_SSL_CA,
4603
  OPT_SQL_BIN_UPDATE_SAME,     OPT_REPLICATE_DO_DB,
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  OPT_REPLICATE_IGNORE_DB,     OPT_LOG_SLAVE_UPDATES,
  OPT_BINLOG_DO_DB,            OPT_BINLOG_IGNORE_DB,
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  OPT_BINLOG_FORMAT,
#ifndef DBUG_OFF
  OPT_BINLOG_SHOW_XID,
#endif
#ifdef HAVE_ROW_BASED_REPLICATION
  OPT_BINLOG_ROWS_EVENT_MAX_SIZE, 
#endif
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  OPT_WANT_CORE,               OPT_CONCURRENT_INSERT,
  OPT_MEMLOCK,                 OPT_MYISAM_RECOVER,
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  OPT_REPLICATE_REWRITE_DB,    OPT_SERVER_ID,
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  OPT_SKIP_SLAVE_START,        OPT_SKIP_INNOBASE,
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  OPT_SAFEMALLOC_MEM_LIMIT,    OPT_REPLICATE_DO_TABLE,
  OPT_REPLICATE_IGNORE_TABLE,  OPT_REPLICATE_WILD_DO_TABLE,
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  OPT_REPLICATE_WILD_IGNORE_TABLE, OPT_REPLICATE_SAME_SERVER_ID,
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  OPT_DISCONNECT_SLAVE_EVENT_COUNT, OPT_TC_HEURISTIC_RECOVER,
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  OPT_ABORT_SLAVE_EVENT_COUNT,
  OPT_INNODB_DATA_HOME_DIR,
  OPT_INNODB_DATA_FILE_PATH,
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  OPT_INNODB_LOG_GROUP_HOME_DIR,
  OPT_INNODB_LOG_ARCH_DIR,
  OPT_INNODB_LOG_ARCHIVE,
  OPT_INNODB_FLUSH_LOG_AT_TRX_COMMIT,
  OPT_INNODB_FLUSH_METHOD,
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  OPT_INNODB_DOUBLEWRITE,
  OPT_INNODB_CHECKSUMS,
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  OPT_INNODB_FAST_SHUTDOWN,
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  OPT_INNODB_FILE_PER_TABLE, OPT_CRASH_BINLOG_INNODB,
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  OPT_INNODB_LOCKS_UNSAFE_FOR_BINLOG,
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  OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
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  OPT_SAFE_SHOW_DB, OPT_INNODB_SAFE_BINLOG,
4636
  OPT_INNODB, OPT_ISAM,
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  OPT_ENGINE_CONDITION_PUSHDOWN,
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  OPT_NDBCLUSTER, OPT_NDB_CONNECTSTRING, OPT_NDB_USE_EXACT_COUNT,
  OPT_NDB_FORCE_SEND, OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
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  OPT_NDB_SHM, OPT_NDB_OPTIMIZED_NODE_SELECTION, OPT_NDB_CACHE_CHECK_TIME,
  OPT_NDB_MGMD, OPT_NDB_NODEID,
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  OPT_NDB_DISTRIBUTION,
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  OPT_NDB_INDEX_STAT_ENABLE,
  OPT_NDB_INDEX_STAT_CACHE_ENTRIES, OPT_NDB_INDEX_STAT_UPDATE_FREQ,
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  OPT_SKIP_SAFEMALLOC,
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  OPT_TEMP_POOL, OPT_TX_ISOLATION, OPT_COMPLETION_TYPE,
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  OPT_SKIP_STACK_TRACE, OPT_SKIP_SYMLINKS,
  OPT_MAX_BINLOG_DUMP_EVENTS, OPT_SPORADIC_BINLOG_DUMP_FAIL,
  OPT_SAFE_USER_CREATE, OPT_SQL_MODE,
  OPT_HAVE_NAMED_PIPE,
  OPT_DO_PSTACK, OPT_REPORT_HOST,
  OPT_REPORT_USER, OPT_REPORT_PASSWORD, OPT_REPORT_PORT,
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  OPT_SHOW_SLAVE_AUTH_INFO,
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  OPT_SLAVE_LOAD_TMPDIR, OPT_NO_MIX_TYPE,
  OPT_RPL_RECOVERY_RANK,OPT_INIT_RPL_ROLE,
  OPT_RELAY_LOG, OPT_RELAY_LOG_INDEX, OPT_RELAY_LOG_INFO_FILE,
  OPT_SLAVE_SKIP_ERRORS, OPT_DES_KEY_FILE, OPT_LOCAL_INFILE,
  OPT_SSL_SSL, OPT_SSL_KEY, OPT_SSL_CERT, OPT_SSL_CA,
  OPT_SSL_CAPATH, OPT_SSL_CIPHER,
  OPT_BACK_LOG, OPT_BINLOG_CACHE_SIZE,
  OPT_CONNECT_TIMEOUT, OPT_DELAYED_INSERT_TIMEOUT,
  OPT_DELAYED_INSERT_LIMIT, OPT_DELAYED_QUEUE_SIZE,
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  OPT_FLUSH_TIME, OPT_FT_MIN_WORD_LEN, OPT_FT_BOOLEAN_SYNTAX,
4664
  OPT_FT_MAX_WORD_LEN, OPT_FT_QUERY_EXPANSION_LIMIT, OPT_FT_STOPWORD_FILE,
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  OPT_INTERACTIVE_TIMEOUT, OPT_JOIN_BUFF_SIZE,
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  OPT_KEY_BUFFER_SIZE, OPT_KEY_CACHE_BLOCK_SIZE,
  OPT_KEY_CACHE_DIVISION_LIMIT, OPT_KEY_CACHE_AGE_THRESHOLD,
  OPT_LONG_QUERY_TIME,
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  OPT_LOWER_CASE_TABLE_NAMES, OPT_MAX_ALLOWED_PACKET,
  OPT_MAX_BINLOG_CACHE_SIZE, OPT_MAX_BINLOG_SIZE,
  OPT_MAX_CONNECTIONS, OPT_MAX_CONNECT_ERRORS,
  OPT_MAX_DELAYED_THREADS, OPT_MAX_HEP_TABLE_SIZE,
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  OPT_MAX_JOIN_SIZE, OPT_MAX_RELAY_LOG_SIZE, OPT_MAX_SORT_LENGTH, 
  OPT_MAX_SEEKS_FOR_KEY, OPT_MAX_TMP_TABLES, OPT_MAX_USER_CONNECTIONS,
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  OPT_MAX_LENGTH_FOR_SORT_DATA,
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  OPT_MAX_WRITE_LOCK_COUNT, OPT_BULK_INSERT_BUFFER_SIZE,
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  OPT_MAX_ERROR_COUNT, OPT_MULTI_RANGE_COUNT, OPT_MYISAM_DATA_POINTER_SIZE,
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  OPT_MYISAM_BLOCK_SIZE, OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
  OPT_MYISAM_MAX_SORT_FILE_SIZE, OPT_MYISAM_SORT_BUFFER_SIZE,
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  OPT_MYISAM_USE_MMAP,
4681
  OPT_MYISAM_STATS_METHOD,
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  OPT_NET_BUFFER_LENGTH, OPT_NET_RETRY_COUNT,
  OPT_NET_READ_TIMEOUT, OPT_NET_WRITE_TIMEOUT,
4684
  OPT_OPEN_FILES_LIMIT,
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  OPT_PRELOAD_BUFFER_SIZE,
4686
  OPT_QUERY_CACHE_LIMIT, OPT_QUERY_CACHE_MIN_RES_UNIT, OPT_QUERY_CACHE_SIZE,
4687
  OPT_QUERY_CACHE_TYPE, OPT_QUERY_CACHE_WLOCK_INVALIDATE, OPT_RECORD_BUFFER,
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  OPT_RECORD_RND_BUFFER, OPT_DIV_PRECINCREMENT, OPT_RELAY_LOG_SPACE_LIMIT,
  OPT_RELAY_LOG_PURGE,
4690
  OPT_SLAVE_NET_TIMEOUT, OPT_SLAVE_COMPRESSED_PROTOCOL, OPT_SLOW_LAUNCH_TIME,
4691
  OPT_SLAVE_TRANS_RETRIES, OPT_READONLY, OPT_DEBUGGING,
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  OPT_SORT_BUFFER, OPT_TABLE_OPEN_CACHE, OPT_TABLE_DEF_CACHE,
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  OPT_THREAD_CONCURRENCY, OPT_THREAD_CACHE_SIZE,
  OPT_TMP_TABLE_SIZE, OPT_THREAD_STACK,
4695
  OPT_WAIT_TIMEOUT, OPT_MYISAM_REPAIR_THREADS,
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  OPT_INNODB_MIRRORED_LOG_GROUPS,
  OPT_INNODB_LOG_FILES_IN_GROUP,
  OPT_INNODB_LOG_FILE_SIZE,
  OPT_INNODB_LOG_BUFFER_SIZE,
  OPT_INNODB_BUFFER_POOL_SIZE,
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  OPT_INNODB_BUFFER_POOL_AWE_MEM_MB,
4702
  OPT_INNODB_ADDITIONAL_MEM_POOL_SIZE,
4703
  OPT_INNODB_MAX_PURGE_LAG,
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  OPT_INNODB_FILE_IO_THREADS,
  OPT_INNODB_LOCK_WAIT_TIMEOUT,
  OPT_INNODB_THREAD_CONCURRENCY,
  OPT_INNODB_FORCE_RECOVERY,
4708
  OPT_INNODB_STATUS_FILE,
4709
  OPT_INNODB_MAX_DIRTY_PAGES_PCT,
4710
  OPT_INNODB_TABLE_LOCKS,
4711
  OPT_INNODB_SUPPORT_XA,
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  OPT_INNODB_OPEN_FILES,
4713
  OPT_INNODB_AUTOEXTEND_INCREMENT,
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  OPT_INNODB_SYNC_SPIN_LOOPS,
  OPT_INNODB_CONCURRENCY_TICKETS,
  OPT_INNODB_THREAD_SLEEP_DELAY,
4717
  OPT_BDB_CACHE_SIZE,
4718
  OPT_BDB_CACHE_PARTS,
4719
  OPT_BDB_LOG_BUFFER_SIZE,
4720
  OPT_BDB_MAX_LOCK,
4721
  OPT_BDB_REGION_SIZE,
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  OPT_ERROR_LOG_FILE,
4723
  OPT_DEFAULT_WEEK_FORMAT,
4724
  OPT_RANGE_ALLOC_BLOCK_SIZE, OPT_ALLOW_SUSPICIOUS_UDFS,
4725
  OPT_QUERY_ALLOC_BLOCK_SIZE, OPT_QUERY_PREALLOC_SIZE,
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  OPT_TRANS_ALLOC_BLOCK_SIZE, OPT_TRANS_PREALLOC_SIZE,
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  OPT_SYNC_FRM, OPT_SYNC_BINLOG,
  OPT_SYNC_REPLICATION,
  OPT_SYNC_REPLICATION_SLAVE_ID,
  OPT_SYNC_REPLICATION_TIMEOUT,
  OPT_BDB_NOSYNC,
4732
  OPT_ENABLE_SHARED_MEMORY,
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  OPT_SHARED_MEMORY_BASE_NAME,
4734
  OPT_OLD_PASSWORDS,
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  OPT_OLD_ALTER_TABLE,
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  OPT_EXPIRE_LOGS_DAYS,
4737
  OPT_GROUP_CONCAT_MAX_LEN,
4738
  OPT_DEFAULT_COLLATION,
4739
  OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
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  OPT_INIT_CONNECT,
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  OPT_INIT_SLAVE,
4742
  OPT_SECURE_AUTH,
4743 4744
  OPT_DATE_FORMAT,
  OPT_TIME_FORMAT,
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  OPT_DATETIME_FORMAT,
4746
  OPT_LOG_QUERIES_NOT_USING_INDEXES,
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  OPT_DEFAULT_TIME_ZONE,
  OPT_OPTIMIZER_SEARCH_DEPTH,
  OPT_OPTIMIZER_PRUNE_LEVEL,
  OPT_UPDATABLE_VIEWS_WITH_LIMIT,
  OPT_SP_AUTOMATIC_PRIVILEGES,
4752
  OPT_MAX_SP_RECURSION_DEPTH,
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  OPT_AUTO_INCREMENT, OPT_AUTO_INCREMENT_OFFSET,
  OPT_ENABLE_LARGE_PAGES,
  OPT_TIMED_MUTEXES,
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  OPT_OLD_STYLE_USER_LIMITS,
4757
  OPT_LOG_SLOW_ADMIN_STATEMENTS,
4758
  OPT_TABLE_LOCK_WAIT_TIMEOUT,
4759
  OPT_PLUGIN_DIR,
4760
  OPT_PORT_OPEN_TIMEOUT
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};
4762

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#define LONG_TIMEOUT ((ulong) 3600L*24L*365L)

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struct my_option my_long_options[] =
4767
{
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  {"help", '?', "Display this help and exit.", 
   (gptr*) &opt_help, (gptr*) &opt_help, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
   0, 0},
#ifdef HAVE_REPLICATION
  {"abort-slave-event-count", OPT_ABORT_SLAVE_EVENT_COUNT,
   "Option used by mysql-test for debugging and testing of replication.",
   (gptr*) &abort_slave_event_count,  (gptr*) &abort_slave_event_count,
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif /* HAVE_REPLICATION */
4777
  {"ansi", 'a', "Use ANSI SQL syntax instead of MySQL syntax. This mode will also set transaction isolation level 'serializable'.", 0, 0, 0,
4778
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
4779
  {"allow-suspicious-udfs", OPT_ALLOW_SUSPICIOUS_UDFS,
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   "Allows use of UDFs consisting of only one symbol xxx() "
   "without corresponding xxx_init() or xxx_deinit(). That also means "
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   "that one can load any function from any library, for example exit() "
   "from libc.so",
   (gptr*) &opt_allow_suspicious_udfs, (gptr*) &opt_allow_suspicious_udfs,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"auto-increment-increment", OPT_AUTO_INCREMENT,
   "Auto-increment columns are incremented by this",
   (gptr*) &global_system_variables.auto_increment_increment,
   (gptr*) &max_system_variables.auto_increment_increment, 0, GET_ULONG,
   OPT_ARG, 1, 1, 65535, 0, 1, 0 },
  {"auto-increment-offset", OPT_AUTO_INCREMENT_OFFSET,
   "Offset added to Auto-increment columns. Used when auto-increment-increment != 1",
   (gptr*) &global_system_variables.auto_increment_offset,
   (gptr*) &max_system_variables.auto_increment_offset, 0, GET_ULONG, OPT_ARG,
   1, 1, 65535, 0, 1, 0 },
  {"automatic-sp-privileges", OPT_SP_AUTOMATIC_PRIVILEGES,
   "Creating and dropping stored procedures alters ACLs. Disable with --skip-automatic-sp-privileges.",
   (gptr*) &sp_automatic_privileges, (gptr*) &sp_automatic_privileges,
   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"basedir", 'b',
   "Path to installation directory. All paths are usually resolved relative to this.",
   (gptr*) &mysql_home_ptr, (gptr*) &mysql_home_ptr, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
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  {"bdb", OPT_BDB, "Enable Berkeley DB (if this version of MySQL supports it). \
Disable with --skip-bdb (will save memory).",
4806
   (gptr*) &opt_bdb, (gptr*) &opt_bdb, 0, GET_BOOL, NO_ARG, OPT_BDB_DEFAULT, 0, 0,
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   0, 0, 0},
4808
#ifdef WITH_BERKELEY_STORAGE_ENGINE
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  {"bdb-data-direct", OPT_BDB_DATA_DIRECT,
   "Turn off system buffering of BDB database files to avoid double caching.",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"bdb-home", OPT_BDB_HOME, "Berkeley home directory.", (gptr*) &berkeley_home,
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   (gptr*) &berkeley_home, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"bdb-lock-detect", OPT_BDB_LOCK,
4815
   "Berkeley lock detect (DEFAULT, OLDEST, RANDOM or YOUNGEST, # sec).",
4816
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"bdb-log-direct", OPT_BDB_LOG_DIRECT,
   "Turn off system buffering of BDB log files to avoid double caching.",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"bdb-logdir", OPT_BDB_LOG, "Berkeley DB log file directory.",
   (gptr*) &berkeley_logdir, (gptr*) &berkeley_logdir, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
4823
  {"bdb-no-recover", OPT_BDB_NO_RECOVER,
4824
   "Don't try to recover Berkeley DB tables on start.", 0, 0, 0, GET_NO_ARG,
4825
   NO_ARG, 0, 0, 0, 0, 0, 0},
4826
  {"bdb-no-sync", OPT_BDB_NOSYNC,
4827
   "This option is deprecated, use --skip-sync-bdb-logs instead",
4828
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
4829
  {"bdb-shared-data", OPT_BDB_SHARED,
4830
   "Start Berkeley DB in multi-process mode.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0,
4831
   0, 0, 0, 0, 0},
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  {"bdb-tmpdir", OPT_BDB_TMP, "Berkeley DB tempfile name.",
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   (gptr*) &berkeley_tmpdir, (gptr*) &berkeley_tmpdir, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
4835
#endif /* WITH_BERKELEY_STORAGE_ENGINE */
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  {"big-tables", OPT_BIG_TABLES,
4837
   "Allow big result sets by saving all temporary sets on file (Solves most 'table full' errors).",
4838
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"bind-address", OPT_BIND_ADDRESS, "IP address to bind to.",
   (gptr*) &my_bind_addr_str, (gptr*) &my_bind_addr_str, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"binlog-format", OPT_BINLOG_FORMAT,
#ifdef HAVE_ROW_BASED_REPLICATION
   "Tell the master the form of binary logging to use: either 'row' for "
   "row-based binary logging (which automatically turns on "
   "innodb_locks_unsafe_for_binlog as it is safe in this case), or "
   "'statement' for statement-based logging. ",
#else
   "Tell the master the form of binary logging to use: this release build "
   "supports only statement-based binary logging, so only 'statement' is "
   "a legal value; MySQL-Max release builds support row-based binary logging "
   "in addition.",
#endif
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },   
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  {"binlog-do-db", OPT_BINLOG_DO_DB,
   "Tells the master it should log updates for the specified database, and exclude all others not explicitly mentioned.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"binlog-ignore-db", OPT_BINLOG_IGNORE_DB,
4859
   "Tells the master that updates to the given database should not be logged tothe binary log.",
4860
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#if !defined(DBUG_OFF) && !defined(MYSQL_CLIENT)
  {"binlog-show-xid", OPT_BINLOG_SHOW_XID,
   "Option used by mysql-test for debugging and testing: "
   "do not display the XID in SHOW BINLOG EVENTS; "
   "may be removed in future versions",
   (gptr*) &Xid_log_event::show_xid, (gptr*) &Xid_log_event::show_xid,
   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
#endif
#ifdef HAVE_ROW_BASED_REPLICATION
  {"binlog-row-event-max-size", OPT_BINLOG_ROWS_EVENT_MAX_SIZE,
   "The maximum size of a row-based binary log event in bytes. Rows will be "
   "grouped into events smaller than this size if possible. "
   "The value has to be a multiple of 256.",
   (gptr*) &opt_binlog_rows_event_max_size, 
   (gptr*) &opt_binlog_rows_event_max_size, 0, 
   GET_ULONG, REQUIRED_ARG, 
   /* def_value */ 1024, /* min_value */  256, /* max_value */ ULONG_MAX, 
   /* sub_size */     0, /* block_size */ 256, 
   /* app_type */ 0
  },
#endif
4882
  {"bootstrap", OPT_BOOTSTRAP, "Used by mysql installation scripts.", 0, 0, 0,
4883
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
4884
  {"character-set-client-handshake", OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
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   "Don't ignore client side character set value sent during handshake.",
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   (gptr*) &opt_character_set_client_handshake,
   (gptr*) &opt_character_set_client_handshake,
    0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"character-set-server", 'C', "Set the default character set.",
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   (gptr*) &default_character_set_name, (gptr*) &default_character_set_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"character-sets-dir", OPT_CHARSETS_DIR,
   "Directory where character sets are.", (gptr*) &charsets_dir,
   (gptr*) &charsets_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"chroot", 'r', "Chroot mysqld daemon during startup.",
   (gptr*) &mysqld_chroot, (gptr*) &mysqld_chroot, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
  {"collation-server", OPT_DEFAULT_COLLATION, "Set the default collation.",
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   (gptr*) &default_collation_name, (gptr*) &default_collation_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"completion-type", OPT_COMPLETION_TYPE, "Default completion type.",
   (gptr*) &global_system_variables.completion_type,
   (gptr*) &max_system_variables.completion_type, 0, GET_ULONG,
   REQUIRED_ARG, 0, 0, 2, 0, 1, 0},
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  {"concurrent-insert", OPT_CONCURRENT_INSERT,
4906
   "Use concurrent insert with MyISAM. Disable with --concurrent-insert=0",
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   (gptr*) &myisam_concurrent_insert, (gptr*) &myisam_concurrent_insert,
4908
   0, GET_LONG, OPT_ARG, 1, 0, 2, 0, 0, 0},
4909
  {"console", OPT_CONSOLE, "Write error output on screen; Don't remove the console window on windows.",
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   (gptr*) &opt_console, (gptr*) &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0,
   0, 0, 0},
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  {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"datadir", 'h', "Path to the database root.", (gptr*) &mysql_data_home,
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   (gptr*) &mysql_data_home, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#ifndef DBUG_OFF
  {"debug", '#', "Debug log.", (gptr*) &default_dbug_option,
   (gptr*) &default_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"default-character-set", 'C', "Set the default character set (deprecated option, use --character-set-server instead).",
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   (gptr*) &default_character_set_name, (gptr*) &default_character_set_name,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"default-collation", OPT_DEFAULT_COLLATION, "Set the default collation (deprecated option, use --collation-server instead).",
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   (gptr*) &default_collation_name, (gptr*) &default_collation_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"default-storage-engine", OPT_STORAGE_ENGINE,
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   "Set the default storage engine (table type) for tables.", 0, 0,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"default-table-type", OPT_STORAGE_ENGINE,
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   "(deprecated) Use --default-storage-engine.", 0, 0,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"default-time-zone", OPT_DEFAULT_TIME_ZONE, "Set the default time zone.",
   (gptr*) &default_tz_name, (gptr*) &default_tz_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"delay-key-write", OPT_DELAY_KEY_WRITE, "Type of DELAY_KEY_WRITE.",
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   0,0,0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
  {"delay-key-write-for-all-tables", OPT_DELAY_KEY_WRITE_ALL,
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   "Don't flush key buffers between writes for any MyISAM table (Deprecated option, use --delay-key-write=all instead).",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_OPENSSL
  {"des-key-file", OPT_DES_KEY_FILE,
   "Load keys for des_encrypt() and des_encrypt from given file.",
   (gptr*) &des_key_file, (gptr*) &des_key_file, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
#endif /* HAVE_OPENSSL */
#ifdef HAVE_REPLICATION
  {"disconnect-slave-event-count", OPT_DISCONNECT_SLAVE_EVENT_COUNT,
   "Option used by mysql-test for debugging and testing of replication.",
   (gptr*) &disconnect_slave_event_count,
   (gptr*) &disconnect_slave_event_count, 0, GET_INT, REQUIRED_ARG, 0, 0, 0,
   0, 0, 0},
#endif /* HAVE_REPLICATION */
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  {"enable-locking", OPT_ENABLE_LOCK,
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   "Deprecated option, use --external-locking instead.",
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   (gptr*) &opt_external_locking, (gptr*) &opt_external_locking,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef __NT__
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  {"enable-named-pipe", OPT_HAVE_NAMED_PIPE, "Enable the named pipe (NT).",
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   (gptr*) &opt_enable_named_pipe, (gptr*) &opt_enable_named_pipe, 0, GET_BOOL,
   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"enable-pstack", OPT_DO_PSTACK, "Print a symbolic stack trace on failure.",
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   (gptr*) &opt_do_pstack, (gptr*) &opt_do_pstack, 0, GET_BOOL, NO_ARG, 0, 0,
   0, 0, 0, 0},
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  {"engine-condition-pushdown",
   OPT_ENGINE_CONDITION_PUSHDOWN,
   "Push supported query conditions to the storage engine.",
   (gptr*) &global_system_variables.engine_condition_pushdown,
   (gptr*) &global_system_variables.engine_condition_pushdown,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"exit-info", 'T', "Used for debugging;  Use at your own risk!", 0, 0, 0,
   GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"external-locking", OPT_USE_LOCKING, "Use system (external) locking.  With this option enabled you can run myisamchk to test (not repair) tables while the MySQL server is running.",
   (gptr*) &opt_external_locking, (gptr*) &opt_external_locking,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"flush", OPT_FLUSH, "Flush tables to disk between SQL commands.", 0, 0, 0,
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   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  /* We must always support the next option to make scripts like mysqltest
     easier to do */
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  {"gdb", OPT_DEBUGGING,
   "Set up signals usable for debugging",
   (gptr*) &opt_debugging, (gptr*) &opt_debugging,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_LARGE_PAGES
  {"large-pages", OPT_ENABLE_LARGE_PAGES, "Enable support for large pages. \
Disable with --skip-large-pages.",
   (gptr*) &opt_large_pages, (gptr*) &opt_large_pages, 0, GET_BOOL, NO_ARG, 0, 0, 0,
   0, 0, 0},
#endif
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  {"init-connect", OPT_INIT_CONNECT, "Command(s) that are executed for each new connection",
   (gptr*) &opt_init_connect, (gptr*) &opt_init_connect, 0, GET_STR_ALLOC,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"init-file", OPT_INIT_FILE, "Read SQL commands from this file at startup.",
   (gptr*) &opt_init_file, (gptr*) &opt_init_file, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
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  {"init-rpl-role", OPT_INIT_RPL_ROLE, "Set the replication role.", 0, 0, 0,
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   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"init-slave", OPT_INIT_SLAVE, "Command(s) that are executed when a slave connects to this master",
   (gptr*) &opt_init_slave, (gptr*) &opt_init_slave, 0, GET_STR_ALLOC,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"innodb", OPT_INNODB, "Enable InnoDB (if this version of MySQL supports it). \
Disable with --skip-innodb (will save memory).",
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   (gptr*) &opt_innodb, (gptr*) &opt_innodb, 0, GET_BOOL, NO_ARG, OPT_INNODB_DEFAULT, 0, 0,
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   0, 0, 0},
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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  {"innodb_checksums", OPT_INNODB_CHECKSUMS, "Enable InnoDB checksums validation (enabled by default). \
Disable with --skip-innodb-checksums.", (gptr*) &innobase_use_checksums,
   (gptr*) &innobase_use_checksums, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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#endif
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  {"innodb_data_file_path", OPT_INNODB_DATA_FILE_PATH,
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   "Path to individual files and their sizes.",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
5014
  {"innodb_data_home_dir", OPT_INNODB_DATA_HOME_DIR,
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   "The common part for InnoDB table spaces.", (gptr*) &innobase_data_home_dir,
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   (gptr*) &innobase_data_home_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0,
   0},
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  {"innodb_doublewrite", OPT_INNODB_DOUBLEWRITE, "Enable InnoDB doublewrite buffer (enabled by default). \
Disable with --skip-innodb-doublewrite.", (gptr*) &innobase_use_doublewrite,
   (gptr*) &innobase_use_doublewrite, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"innodb_fast_shutdown", OPT_INNODB_FAST_SHUTDOWN,
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   "Speeds up the shutdown process of the InnoDB storage engine. Possible "
   "values are 0, 1 (faster)"
   /*
     NetWare can't close unclosed files, can't automatically kill remaining
     threads, etc, so on this OS we disable the crash-like InnoDB shutdown.
   */
#ifndef __NETWARE__
   " or 2 (fastest - crash-like)"
#endif
   ".",
   (gptr*) &innobase_fast_shutdown,
   (gptr*) &innobase_fast_shutdown, 0, GET_ULONG, OPT_ARG, 1, 0,
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   IF_NETWARE(1,2), 0, 0, 0},
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  {"innodb_file_per_table", OPT_INNODB_FILE_PER_TABLE,
   "Stores each InnoDB table to an .ibd file in the database dir.",
   (gptr*) &innobase_file_per_table,
   (gptr*) &innobase_file_per_table, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"innodb_flush_log_at_trx_commit", OPT_INNODB_FLUSH_LOG_AT_TRX_COMMIT,
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   "Set to 0 (write and flush once per second), 1 (write and flush at each commit) or 2 (write at commit, flush once per second).",
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   (gptr*) &innobase_flush_log_at_trx_commit,
   (gptr*) &innobase_flush_log_at_trx_commit,
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   0, GET_UINT, OPT_ARG,  1, 0, 2, 0, 0, 0},
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  {"innodb_flush_method", OPT_INNODB_FLUSH_METHOD,
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   "With which method to flush data.", (gptr*) &innobase_unix_file_flush_method,
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   (gptr*) &innobase_unix_file_flush_method, 0, GET_STR, REQUIRED_ARG, 0, 0, 0,
   0, 0, 0},
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  {"innodb_locks_unsafe_for_binlog", OPT_INNODB_LOCKS_UNSAFE_FOR_BINLOG,
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   "Force InnoDB not to use next-key locking, to use only row-level locking."
   " This is unsafe if you are using statement-based binary logging, and safe"
   " if you are using row-based binary logging.",
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   (gptr*) &innobase_locks_unsafe_for_binlog,
   (gptr*) &innobase_locks_unsafe_for_binlog, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"innodb_log_arch_dir", OPT_INNODB_LOG_ARCH_DIR,
   "Where full logs should be archived.", (gptr*) &innobase_log_arch_dir,
   (gptr*) &innobase_log_arch_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"innodb_log_archive", OPT_INNODB_LOG_ARCHIVE,
   "Set to 1 if you want to have logs archived.", 0, 0, 0, GET_LONG, OPT_ARG,
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   0, 0, 0, 0, 0, 0},
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  {"innodb_log_group_home_dir", OPT_INNODB_LOG_GROUP_HOME_DIR,
   "Path to InnoDB log files.", (gptr*) &innobase_log_group_home_dir,
   (gptr*) &innobase_log_group_home_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0,
   0, 0},
  {"innodb_max_dirty_pages_pct", OPT_INNODB_MAX_DIRTY_PAGES_PCT,
   "Percentage of dirty pages allowed in bufferpool.", (gptr*) &srv_max_buf_pool_modified_pct,
   (gptr*) &srv_max_buf_pool_modified_pct, 0, GET_ULONG, REQUIRED_ARG, 90, 0, 100, 0, 0, 0},
5067
  {"innodb_max_purge_lag", OPT_INNODB_MAX_PURGE_LAG,
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   "Desired maximum length of the purge queue (0 = no limit)",
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   (gptr*) &srv_max_purge_lag,
   (gptr*) &srv_max_purge_lag, 0, GET_LONG, REQUIRED_ARG, 0, 0, ~0L,
   0, 1L, 0},
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  {"innodb_status_file", OPT_INNODB_STATUS_FILE,
   "Enable SHOW INNODB STATUS output in the innodb_status.<pid> file",
   (gptr*) &innobase_create_status_file, (gptr*) &innobase_create_status_file,
   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
5076
  {"innodb_table_locks", OPT_INNODB_TABLE_LOCKS,
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   "Enable InnoDB locking in LOCK TABLES",
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   (gptr*) &global_system_variables.innodb_table_locks,
   (gptr*) &global_system_variables.innodb_table_locks,
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   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"innodb_support_xa", OPT_INNODB_SUPPORT_XA,
   "Enable InnoDB support for the XA two-phase commit",
   (gptr*) &global_system_variables.innodb_support_xa,
   (gptr*) &global_system_variables.innodb_support_xa,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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#endif /* End WITH_INNOBASE_STORAGE_ENGINE */
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  {"isam", OPT_ISAM, "Obsolete. ISAM storage engine is no longer supported.",
   (gptr*) &opt_isam, (gptr*) &opt_isam, 0, GET_BOOL, NO_ARG, 0, 0, 0,
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   0, 0, 0},
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   {"language", 'L',
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   "Client error messages in given language. May be given as a full path.",
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   (gptr*) &language_ptr, (gptr*) &language_ptr, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
  {"local-infile", OPT_LOCAL_INFILE,
5095
   "Enable/disable LOAD DATA LOCAL INFILE (takes values 1|0).",
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   (gptr*) &opt_local_infile,
   (gptr*) &opt_local_infile, 0, GET_BOOL, OPT_ARG,
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   1, 0, 0, 0, 0, 0},
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  {"log", 'l', "Log connections and queries to file.", (gptr*) &opt_logname,
   (gptr*) &opt_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
5101
  {"log-bin", OPT_BIN_LOG,
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   "Log update queries in binary format. Optional (but strongly recommended "
   "to avoid replication problems if server's hostname changes) argument "
   "should be the chosen location for the binary log files.",
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   (gptr*) &opt_bin_logname, (gptr*) &opt_bin_logname, 0, GET_STR_ALLOC,
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   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-bin-index", OPT_BIN_LOG_INDEX,
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   "File that holds the names for last binary log files.",
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   (gptr*) &opt_binlog_index_name, (gptr*) &opt_binlog_index_name, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef TO_BE_REMOVED_IN_5_1_OR_6_0
  /*
    In 5.0.6 we introduced the below option, then in 5.0.16 we renamed it to
    log-bin-trust-function-creators but kept also the old name for
    compatibility; the behaviour was also changed to apply only to functions
    (and triggers). In a future release this old name could be removed.
  */
  {"log-bin-trust-routine-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
   "(deprecated) Use log-bin-trust-function-creators.",
   (gptr*) &trust_function_creators, (gptr*) &trust_function_creators, 0,
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  /*
    This option starts with "log-bin" to emphasize that it is specific of
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    binary logging.
5126
  */
5127
  {"log-bin-trust-function-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
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   "If equal to 0 (the default), then when --log-bin is used, creation of "
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   "a function is allowed only to users having the SUPER privilege and only "
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   "if this function may not break binary logging."
#ifdef HAVE_ROW_BASED_REPLICATION
   " If using --binlog-format=row, the security issues do not exist and the "
   "binary logging cannot break so this option is automatically set to 1."
#endif
   ,(gptr*) &trust_function_creators, (gptr*) &trust_function_creators, 0,
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   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-error", OPT_ERROR_LOG_FILE, "Error log file.",
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   (gptr*) &log_error_file_ptr, (gptr*) &log_error_file_ptr, 0, GET_STR,
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.",
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   (gptr*) &myisam_log_filename, (gptr*) &myisam_log_filename, 0, GET_STR,
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-long-format", '0',
   "Log some extra information to update log. Please note that this option is deprecated; see --log-short-format option.", 
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"log-queries-not-using-indexes", OPT_LOG_QUERIES_NOT_USING_INDEXES,
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   "Log queries that are executed without benefit of any index to the slow log if it is open.",
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   (gptr*) &opt_log_queries_not_using_indexes, (gptr*) &opt_log_queries_not_using_indexes,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-short-format", OPT_SHORT_LOG_FORMAT,
   "Don't log extra information to update and slow-query logs.",
   (gptr*) &opt_short_log_format, (gptr*) &opt_short_log_format,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5154
  {"log-slave-updates", OPT_LOG_SLAVE_UPDATES,
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   "Tells the slave to log the updates from the slave thread to the binary log. You will need to turn it on if you plan to daisy-chain the slaves.",
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   (gptr*) &opt_log_slave_updates, (gptr*) &opt_log_slave_updates, 0, GET_BOOL,
   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-slow-admin-statements", OPT_LOG_SLOW_ADMIN_STATEMENTS,
   "Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to the slow log if it is open.",
   (gptr*) &opt_log_slow_admin_statements,
   (gptr*) &opt_log_slow_admin_statements,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-slow-queries", OPT_SLOW_QUERY_LOG,
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    "Log slow queries to this log file. Defaults logging to hostname-slow.log file. Must be enabled to activate other slow log options.",
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   (gptr*) &opt_slow_logname, (gptr*) &opt_slow_logname, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
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  {"log-tc", OPT_LOG_TC,
   "Path to transaction coordinator log (used for transactions that affect "
   "more than one storage engine, when binary log is disabled)",
   (gptr*) &opt_tc_log_file, (gptr*) &opt_tc_log_file, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_MMAP
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  {"log-tc-size", OPT_LOG_TC_SIZE, "Size of transaction coordinator log.",
   (gptr*) &opt_tc_log_size, (gptr*) &opt_tc_log_size, 0, GET_ULONG,
   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, ~0L, 0, TC_LOG_PAGE_SIZE, 0},
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#endif
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  {"log-update", OPT_UPDATE_LOG,
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   "The update log is deprecated since version 5.0, is replaced by the binary \
log and this option justs turns on --log-bin instead.",
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   (gptr*) &opt_update_logname, (gptr*) &opt_update_logname, 0, GET_STR,
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-warnings", 'W', "Log some not critical warnings to the log file.",
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   (gptr*) &global_system_variables.log_warnings,
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   (gptr*) &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, 0,
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   0, 0, 0},
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  {"low-priority-updates", OPT_LOW_PRIORITY_UPDATES,
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   "INSERT/DELETE/UPDATE has lower priority than selects.",
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   (gptr*) &global_system_variables.low_priority_updates,
   (gptr*) &max_system_variables.low_priority_updates,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"master-connect-retry", OPT_MASTER_CONNECT_RETRY,
   "The number of seconds the slave thread will sleep before retrying to connect to the master in case the master goes down or the connection is lost.",
   (gptr*) &master_connect_retry, (gptr*) &master_connect_retry, 0, GET_UINT,
   REQUIRED_ARG, 60, 0, 0, 0, 0, 0},
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  {"master-host", OPT_MASTER_HOST,
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   "Master hostname or IP address for replication. If not set, the slave thread will not be started. Note that the setting of master-host will be ignored if there exists a valid master.info file.",
   (gptr*) &master_host, (gptr*) &master_host, 0, GET_STR, REQUIRED_ARG, 0, 0,
   0, 0, 0, 0},
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  {"master-info-file", OPT_MASTER_INFO_FILE,
   "The location and name of the file that remembers the master and where the I/O replication \
thread is in the master's binlogs.",
   (gptr*) &master_info_file, (gptr*) &master_info_file, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"master-password", OPT_MASTER_PASSWORD,
   "The password the slave thread will authenticate with when connecting to the master. If not set, an empty password is assumed.The value in master.info will take precedence if it can be read.",
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   (gptr*)&master_password, (gptr*)&master_password, 0,
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"master-port", OPT_MASTER_PORT,
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   "The port the master is listening on. If not set, the compiled setting of MYSQL_PORT is assumed. If you have not tinkered with configure options, this should be 3306. The value in master.info will take precedence if it can be read.",
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   (gptr*) &master_port, (gptr*) &master_port, 0, GET_UINT, REQUIRED_ARG,
   MYSQL_PORT, 0, 0, 0, 0, 0},
  {"master-retry-count", OPT_MASTER_RETRY_COUNT,
   "The number of tries the slave will make to connect to the master before giving up.",
   (gptr*) &master_retry_count, (gptr*) &master_retry_count, 0, GET_ULONG,
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   REQUIRED_ARG, 3600*24, 0, 0, 0, 0, 0},
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  {"master-ssl", OPT_MASTER_SSL,
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   "Enable the slave to connect to the master using SSL.",
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   (gptr*) &master_ssl, (gptr*) &master_ssl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
   0, 0},
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  {"master-ssl-ca", OPT_MASTER_SSL_CA,
   "Master SSL CA file. Only applies if you have enabled master-ssl.",
   (gptr*) &master_ssl_ca, (gptr*) &master_ssl_ca, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
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  {"master-ssl-capath", OPT_MASTER_SSL_CAPATH,
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   "Master SSL CA path. Only applies if you have enabled master-ssl.",
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   (gptr*) &master_ssl_capath, (gptr*) &master_ssl_capath, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
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  {"master-ssl-cert", OPT_MASTER_SSL_CERT,
   "Master SSL certificate file name. Only applies if you have enabled \
master-ssl",
   (gptr*) &master_ssl_cert, (gptr*) &master_ssl_cert, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
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  {"master-ssl-cipher", OPT_MASTER_SSL_CIPHER,
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   "Master SSL cipher. Only applies if you have enabled master-ssl.",
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   (gptr*) &master_ssl_cipher, (gptr*) &master_ssl_capath, 0, GET_STR, OPT_ARG,
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   0, 0, 0, 0, 0, 0},
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  {"master-ssl-key", OPT_MASTER_SSL_KEY,
   "Master SSL keyfile name. Only applies if you have enabled master-ssl.",
   (gptr*) &master_ssl_key, (gptr*) &master_ssl_key, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
  {"master-user", OPT_MASTER_USER,
   "The username the slave thread will use for authentication when connecting to the master. The user must have FILE privilege. If the master user is not set, user test is assumed. The value in master.info will take precedence if it can be read.",
   (gptr*) &master_user, (gptr*) &master_user, 0, GET_STR, REQUIRED_ARG, 0, 0,
   0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
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  {"max-binlog-dump-events", OPT_MAX_BINLOG_DUMP_EVENTS,
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   "Option used by mysql-test for debugging and testing of replication.",
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   (gptr*) &max_binlog_dump_events, (gptr*) &max_binlog_dump_events, 0,
   GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#endif /* HAVE_REPLICATION */
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  {"memlock", OPT_MEMLOCK, "Lock mysqld in memory.", (gptr*) &locked_in_memory,
   (gptr*) &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"myisam-recover", OPT_MYISAM_RECOVER,
   "Syntax: myisam-recover[=option[,option...]], where option can be DEFAULT, BACKUP, FORCE or QUICK.",
   (gptr*) &myisam_recover_options_str, (gptr*) &myisam_recover_options_str, 0,
   GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
  {"ndbcluster", OPT_NDBCLUSTER, "Enable NDB Cluster (if this version of MySQL supports it). \
Disable with --skip-ndbcluster (will save memory).",
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   (gptr*) &opt_ndbcluster, (gptr*) &opt_ndbcluster, 0, GET_BOOL, NO_ARG,
   OPT_NDBCLUSTER_DEFAULT, 0, 0, 0, 0, 0},
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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  {"ndb-connectstring", OPT_NDB_CONNECTSTRING,
   "Connect string for ndbcluster.",
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   (gptr*) &opt_ndb_connectstring,
   (gptr*) &opt_ndb_connectstring,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"ndb-mgmd-host", OPT_NDB_MGMD,
   "Set host and port for ndb_mgmd. Syntax: hostname[:port]",
   (gptr*) &opt_ndb_mgmd,
   (gptr*) &opt_ndb_mgmd,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-nodeid", OPT_NDB_NODEID,
   "Nodeid for this mysqlserver in the cluster.",
   (gptr*) &opt_ndb_nodeid,
   (gptr*) &opt_ndb_nodeid,
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-autoincrement-prefetch-sz", OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
   "Specify number of autoincrement values that are prefetched.",
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   (gptr*) &global_system_variables.ndb_autoincrement_prefetch_sz,
   (gptr*) &global_system_variables.ndb_autoincrement_prefetch_sz,
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   0, GET_ULONG, REQUIRED_ARG, 32, 1, 256, 0, 0, 0},
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  {"ndb-distribution", OPT_NDB_DISTRIBUTION,
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   "Default distribution for new tables in ndb",
   (gptr*) &opt_ndb_distribution,
   (gptr*) &opt_ndb_distribution,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-force-send", OPT_NDB_FORCE_SEND,
   "Force send of buffers to ndb immediately without waiting for "
   "other threads.",
   (gptr*) &global_system_variables.ndb_force_send,
   (gptr*) &global_system_variables.ndb_force_send,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb_force_send", OPT_NDB_FORCE_SEND,
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   "same as --ndb-force-send.",
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   (gptr*) &global_system_variables.ndb_force_send,
   (gptr*) &global_system_variables.ndb_force_send,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb-use-exact-count", OPT_NDB_USE_EXACT_COUNT,
   "Use exact records count during query planning and for fast "
   "select count(*), disable for faster queries.",
   (gptr*) &global_system_variables.ndb_use_exact_count,
   (gptr*) &global_system_variables.ndb_use_exact_count,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb_use_exact_count", OPT_NDB_USE_EXACT_COUNT,
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   "same as --ndb-use-exact-count.",
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   (gptr*) &global_system_variables.ndb_use_exact_count,
   (gptr*) &global_system_variables.ndb_use_exact_count,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb-shm", OPT_NDB_SHM,
   "Use shared memory connections when available.",
   (gptr*) &opt_ndb_shm,
   (gptr*) &opt_ndb_shm,
   0, GET_BOOL, OPT_ARG, OPT_NDB_SHM_DEFAULT, 0, 0, 0, 0, 0},
  {"ndb-optimized-node-selection", OPT_NDB_OPTIMIZED_NODE_SELECTION,
   "Select nodes for transactions in a more optimal way.",
   (gptr*) &opt_ndb_optimized_node_selection,
   (gptr*) &opt_ndb_optimized_node_selection,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  { "ndb-cache-check-time", OPT_NDB_CACHE_CHECK_TIME,
    "A dedicated thread is created to, at the given millisecons interval, invalidate the query cache if another MySQL server in the cluster has changed the data in the database.",
    (gptr*) &opt_ndb_cache_check_time, (gptr*) &opt_ndb_cache_check_time, 0, GET_ULONG, REQUIRED_ARG,
    0, 0, LONG_TIMEOUT, 0, 1, 0},
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  {"ndb-index-stat-enable", OPT_NDB_INDEX_STAT_ENABLE,
   "Use ndb index statistics in query optimization.",
   (gptr*) &global_system_variables.ndb_index_stat_enable,
   (gptr*) &max_system_variables.ndb_index_stat_enable,
   0, GET_BOOL, OPT_ARG, 1, 0, 1, 0, 0, 0},
  {"ndb-index-stat-cache-entries", OPT_NDB_INDEX_STAT_CACHE_ENTRIES,
   "Number of start/end keys to store in statistics memory cache."
    " Zero means no cache and forces query of db nodes always.",
   (gptr*) &global_system_variables.ndb_index_stat_cache_entries,
   (gptr*) &max_system_variables.ndb_index_stat_cache_entries,
   0, GET_ULONG, OPT_ARG, 32, 0, ~0L, 0, 0, 0},
  {"ndb-index-stat-update-freq", OPT_NDB_INDEX_STAT_UPDATE_FREQ,
   "How often, in the long run, to query db nodes instead of statistics cache."
   " For example 20 means every 20th time.",
   (gptr*) &global_system_variables.ndb_index_stat_update_freq,
   (gptr*) &max_system_variables.ndb_index_stat_update_freq,
   0, GET_ULONG, OPT_ARG, 20, 0, ~0L, 0, 0, 0},
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#endif
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  {"new", 'n', "Use very new possible 'unsafe' functions.",
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   (gptr*) &global_system_variables.new_mode,
   (gptr*) &max_system_variables.new_mode,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef NOT_YET
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  {"no-mix-table-types", OPT_NO_MIX_TYPE, "Don't allow commands with uses two different table types.",
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   (gptr*) &opt_no_mix_types, (gptr*) &opt_no_mix_types, 0, GET_BOOL, NO_ARG,
   0, 0, 0, 0, 0, 0},
#endif
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  {"old-alter-table", OPT_OLD_ALTER_TABLE,
   "Use old, non-optimized alter table.",
   (gptr*) &global_system_variables.old_alter_table,
   (gptr*) &max_system_variables.old_alter_table, 0, GET_BOOL, NO_ARG,
   0, 0, 0, 0, 0, 0},
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  {"old-passwords", OPT_OLD_PASSWORDS, "Use old password encryption method (needed for 4.0 and older clients).",
   (gptr*) &global_system_variables.old_passwords,
   (gptr*) &max_system_variables.old_passwords, 0, GET_BOOL, NO_ARG,
   0, 0, 0, 0, 0, 0},
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#ifdef ONE_THREAD
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  {"one-thread", OPT_ONE_THREAD,
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   "Only use one thread (for debugging under Linux).", 0, 0, 0, GET_NO_ARG,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"old-style-user-limits", OPT_OLD_STYLE_USER_LIMITS,
   "Enable old-style user limits (before 5.0.3 user resources were counted per each user+host vs. per account)",
   (gptr*) &opt_old_style_user_limits, (gptr*) &opt_old_style_user_limits,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"pid-file", OPT_PID_FILE, "Pid file used by safe_mysqld.",
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   (gptr*) &pidfile_name_ptr, (gptr*) &pidfile_name_ptr, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"port", 'P', "Port number to use for connection.", (gptr*) &mysqld_port,
   (gptr*) &mysqld_port, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"port-open-timeout", OPT_PORT_OPEN_TIMEOUT,
   "Maximum time in seconds to wait for the port to become free. "
   "(Default: no wait)", (gptr*) &mysqld_port_timeout,
   (gptr*) &mysqld_port_timeout, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"relay-log", OPT_RELAY_LOG,
   "The location and name to use for relay logs.",
   (gptr*) &opt_relay_logname, (gptr*) &opt_relay_logname, 0,
   GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"relay-log-index", OPT_RELAY_LOG_INDEX,
   "The location and name to use for the file that keeps a list of the last \
relay logs.",
   (gptr*) &opt_relaylog_index_name, (gptr*) &opt_relaylog_index_name, 0,
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"relay-log-info-file", OPT_RELAY_LOG_INFO_FILE,
   "The location and name of the file that remembers where the SQL replication \
thread is in the relay logs.",
   (gptr*) &relay_log_info_file, (gptr*) &relay_log_info_file, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"replicate-do-db", OPT_REPLICATE_DO_DB,
   "Tells the slave thread to restrict replication to the specified database. To specify more than one database, use the directive multiple times, once for each database. Note that this will only work if you do not use cross-database queries such as UPDATE some_db.some_table SET foo='bar' while having selected a different or no database. If you need cross database updates to work, make sure you have 3.23.28 or later, and use replicate-wild-do-table=db_name.%.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-do-table", OPT_REPLICATE_DO_TABLE,
   "Tells the slave thread to restrict replication to the specified table. To specify more than one table, use the directive multiple times, once for each table. This will work for cross-database updates, in contrast to replicate-do-db.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-ignore-db", OPT_REPLICATE_IGNORE_DB,
   "Tells the slave thread to not replicate to the specified database. To specify more than one database to ignore, use the directive multiple times, once for each database. This option will not work if you use cross database updates. If you need cross database updates to work, make sure you have 3.23.28 or later, and use replicate-wild-ignore-table=db_name.%. ",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-ignore-table", OPT_REPLICATE_IGNORE_TABLE,
   "Tells the slave thread to not replicate to the specified table. To specify more than one table to ignore, use the directive multiple times, once for each table. This will work for cross-datbase updates, in contrast to replicate-ignore-db.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-rewrite-db", OPT_REPLICATE_REWRITE_DB,
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   "Updates to a database with a different name than the original. Example: replicate-rewrite-db=master_db_name->slave_db_name.",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"replicate-wild-do-table", OPT_REPLICATE_WILD_DO_TABLE,
   "Tells the slave thread to restrict replication to the tables that match the specified wildcard pattern. To specify more than one table, use the directive multiple times, once for each table. This will work for cross-database updates. Example: replicate-wild-do-table=foo%.bar% will replicate only updates to tables in all databases that start with foo and whose table names start with bar.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-wild-ignore-table", OPT_REPLICATE_WILD_IGNORE_TABLE,
   "Tells the slave thread to not replicate to the tables that match the given wildcard pattern. To specify more than one table to ignore, use the directive multiple times, once for each table. This will work for cross-database updates. Example: replicate-wild-ignore-table=foo%.bar% will not do updates to tables in databases that start with foo and whose table names start with bar.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
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  {"replicate-same-server-id", OPT_REPLICATE_SAME_SERVER_ID,
   "In replication, if set to 1, do not skip events having our server id. \
Default value is 0 (to break infinite loops in circular replication). \
Can't be set to 1 if --log-slave-updates is used.",
   (gptr*) &replicate_same_server_id,
   (gptr*) &replicate_same_server_id,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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  // In replication, we may need to tell the other servers how to connect
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  {"report-host", OPT_REPORT_HOST,
   "Hostname or IP of the slave to be reported to to the master during slave registration. Will appear in the output of SHOW SLAVE HOSTS. Leave unset if you do not want the slave to register itself with the master. Note that it is not sufficient for the master to simply read the IP of the slave off the socket once the slave connects. Due to NAT and other routing issues, that IP may not be valid for connecting to the slave from the master or other hosts.",
   (gptr*) &report_host, (gptr*) &report_host, 0, GET_STR, REQUIRED_ARG, 0, 0,
   0, 0, 0, 0},
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  {"report-password", OPT_REPORT_PASSWORD, "Undocumented.",
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   (gptr*) &report_password, (gptr*) &report_password, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"report-port", OPT_REPORT_PORT,
   "Port for connecting to slave reported to the master during slave registration. Set it only if the slave is listening on a non-default port or if you have a special tunnel from the master or other clients to the slave. If not sure, leave this option unset.",
   (gptr*) &report_port, (gptr*) &report_port, 0, GET_UINT, REQUIRED_ARG,
   MYSQL_PORT, 0, 0, 0, 0, 0},
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  {"report-user", OPT_REPORT_USER, "Undocumented.", (gptr*) &report_user,
   (gptr*) &report_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"rpl-recovery-rank", OPT_RPL_RECOVERY_RANK, "Undocumented.",
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   (gptr*) &rpl_recovery_rank, (gptr*) &rpl_recovery_rank, 0, GET_ULONG,
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   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"safe-mode", OPT_SAFE, "Skip some optimize stages (for testing).",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef TO_BE_DELETED
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  {"safe-show-database", OPT_SAFE_SHOW_DB,
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   "Deprecated option; use GRANT SHOW DATABASES instead...",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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  {"safe-user-create", OPT_SAFE_USER_CREATE,
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   "Don't allow new user creation by the user who has no write privileges to the mysql.user table.",
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   (gptr*) &opt_safe_user_create, (gptr*) &opt_safe_user_create, 0, GET_BOOL,
   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"safemalloc-mem-limit", OPT_SAFEMALLOC_MEM_LIMIT,
   "Simulate memory shortage when compiled with the --with-debug=full option.",
   0, 0, 0, GET_ULL, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"secure-auth", OPT_SECURE_AUTH, "Disallow authentication for accounts that have old (pre-4.1) passwords.",
   (gptr*) &opt_secure_auth, (gptr*) &opt_secure_auth, 0, GET_BOOL, NO_ARG,
   my_bool(0), 0, 0, 0, 0, 0},
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  {"server-id",	OPT_SERVER_ID,
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   "Uniquely identifies the server instance in the community of replication partners.",
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   (gptr*) &server_id, (gptr*) &server_id, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 0,
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   0, 0, 0},
  {"set-variable", 'O',
   "Change the value of a variable. Please note that this option is deprecated;you can set variables directly with --variable-name=value.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_SMEM
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  {"shared-memory", OPT_ENABLE_SHARED_MEMORY,
   "Enable the shared memory.",(gptr*) &opt_enable_shared_memory, (gptr*) &opt_enable_shared_memory,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
#ifdef HAVE_SMEM
  {"shared-memory-base-name",OPT_SHARED_MEMORY_BASE_NAME,
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   "Base name of shared memory.", (gptr*) &shared_memory_base_name, (gptr*) &shared_memory_base_name,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"show-slave-auth-info", OPT_SHOW_SLAVE_AUTH_INFO,
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   "Show user and password in SHOW SLAVE HOSTS on this master",
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   (gptr*) &opt_show_slave_auth_info, (gptr*) &opt_show_slave_auth_info, 0,
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-grant-tables", OPT_SKIP_GRANT,
   "Start without grant tables. This gives all users FULL ACCESS to all tables!",
   (gptr*) &opt_noacl, (gptr*) &opt_noacl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
   0},
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  {"skip-host-cache", OPT_SKIP_HOST_CACHE, "Don't cache host names.", 0, 0, 0,
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"skip-locking", OPT_SKIP_LOCK,
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   "Deprecated option, use --skip-external-locking instead.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-name-resolve", OPT_SKIP_RESOLVE,
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   "Don't resolve hostnames. All hostnames are IP's or 'localhost'.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-networking", OPT_SKIP_NETWORKING,
   "Don't allow connection with TCP/IP.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0,
   0, 0, 0},
  {"skip-new", OPT_SKIP_NEW, "Don't use new, possible wrong routines.",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef DBUG_OFF
#ifdef SAFEMALLOC
  {"skip-safemalloc", OPT_SKIP_SAFEMALLOC,
   "Don't use the memory allocation checking.", 0, 0, 0, GET_NO_ARG, NO_ARG,
   0, 0, 0, 0, 0, 0},
#endif
#endif
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  {"skip-show-database", OPT_SKIP_SHOW_DB,
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   "Don't allow 'SHOW DATABASE' commands.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
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   0, 0, 0, 0},
  {"skip-slave-start", OPT_SKIP_SLAVE_START,
   "If set, slave is not autostarted.", (gptr*) &opt_skip_slave_start,
   (gptr*) &opt_skip_slave_start, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-stack-trace", OPT_SKIP_STACK_TRACE,
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   "Don't print a stack trace on failure.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
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   0, 0, 0, 0},
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  {"skip-symlink", OPT_SKIP_SYMLINKS, "Don't allow symlinking of tables. Deprecated option.  Use --skip-symbolic-links instead.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-thread-priority", OPT_SKIP_PRIOR,
   "Don't give threads different priorities.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0,
   0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
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  {"slave-load-tmpdir", OPT_SLAVE_LOAD_TMPDIR,
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   "The location where the slave should put its temporary files when \
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replicating a LOAD DATA INFILE command.",
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   (gptr*) &slave_load_tmpdir, (gptr*) &slave_load_tmpdir, 0, GET_STR_ALLOC,
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   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"slave-skip-errors", OPT_SLAVE_SKIP_ERRORS,
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   "Tells the slave thread to continue replication when a query returns an error from the provided list.",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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  {"socket", OPT_SOCKET, "Socket file to use for connection.",
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   (gptr*) &mysqld_unix_port, (gptr*) &mysqld_unix_port, 0, GET_STR,
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   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
  {"sporadic-binlog-dump-fail", OPT_SPORADIC_BINLOG_DUMP_FAIL,
   "Option used by mysql-test for debugging and testing of replication.",
   (gptr*) &opt_sporadic_binlog_dump_fail,
   (gptr*) &opt_sporadic_binlog_dump_fail, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
   0},
#endif /* HAVE_REPLICATION */
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  {"sql-bin-update-same", OPT_SQL_BIN_UPDATE_SAME,
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   "The update log is deprecated since version 5.0, is replaced by the binary \
log and this option does nothing anymore.",
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   0, 0, 0, GET_DISABLED, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"sql-mode", OPT_SQL_MODE,
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   "Syntax: sql-mode=option[,option[,option...]] where option can be one of: REAL_AS_FLOAT, PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, ONLY_FULL_GROUP_BY, NO_UNSIGNED_SUBTRACTION.",
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   (gptr*) &sql_mode_str, (gptr*) &sql_mode_str, 0, GET_STR, REQUIRED_ARG, 0,
   0, 0, 0, 0, 0},
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#ifdef HAVE_OPENSSL
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#include "sslopt-longopts.h"
#endif
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#ifdef __WIN__
  {"standalone", OPT_STANDALONE,
  "Dummy option to start as a standalone program (NT).", 0, 0, 0, GET_NO_ARG,
   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
  {"symbolic-links", 's', "Enable symbolic link support.",
   (gptr*) &my_use_symdir, (gptr*) &my_use_symdir, 0, GET_BOOL, NO_ARG,
   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
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  {"tc-heuristic-recover", OPT_TC_HEURISTIC_RECOVER,
   "Decision to use in heuristic recover process. Possible values are COMMIT or ROLLBACK",
   (gptr*) &opt_tc_heuristic_recover, (gptr*) &opt_tc_heuristic_recover,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"temp-pool", OPT_TEMP_POOL,
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   "Using this option will cause most temporary files created to use a small set of names, rather than a unique name for each new file.",
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   (gptr*) &use_temp_pool, (gptr*) &use_temp_pool, 0, GET_BOOL, NO_ARG, 1,
   0, 0, 0, 0, 0},
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  {"timed_mutexes", OPT_TIMED_MUTEXES,
   "Specify whether to time mutexes (only InnoDB mutexes are currently supported)",
   (gptr*) &timed_mutexes, (gptr*) &timed_mutexes, 0, GET_BOOL, NO_ARG, 0, 
    0, 0, 0, 0, 0},
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  {"tmpdir", 't',
   "Path for temporary files. Several paths may be specified, separated by a "
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#if defined(__WIN__) || defined(OS2) || defined(__NETWARE__)
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   "semicolon (;)"
#else
   "colon (:)"
#endif
   ", in this case they are used in a round-robin fashion.",
   (gptr*) &opt_mysql_tmpdir,
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   (gptr*) &opt_mysql_tmpdir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"transaction-isolation", OPT_TX_ISOLATION,
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   "Default transaction isolation level.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0,
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   0, 0, 0, 0, 0},
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  {"use-symbolic-links", 's', "Enable symbolic link support. Deprecated option; use --symbolic-links instead.",
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   (gptr*) &my_use_symdir, (gptr*) &my_use_symdir, 0, GET_BOOL, NO_ARG,
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   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
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  {"user", 'u', "Run mysqld daemon as user.", 0, 0, 0, GET_STR, REQUIRED_ARG,
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   0, 0, 0, 0, 0, 0},
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  {"verbose", 'v', "Used with --help option for detailed help",
   (gptr*) &opt_verbose, (gptr*) &opt_verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
   0, 0},
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  {"version", 'V', "Output version information and exit.", 0, 0, 0, GET_NO_ARG,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"warnings", 'W', "Deprecated; use --log-warnings instead.",
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   (gptr*) &global_system_variables.log_warnings,
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   (gptr*) &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, ~0L,
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   0, 0, 0},
  { "back_log", OPT_BACK_LOG,
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    "The number of outstanding connection requests MySQL can have. This comes into play when the main MySQL thread gets very many connection requests in a very short time.",
    (gptr*) &back_log, (gptr*) &back_log, 0, GET_ULONG,
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    REQUIRED_ARG, 50, 1, 65535, 0, 1, 0 },
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#ifdef WITH_BERKELEY_STORAGE_ENGINE
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  { "bdb_cache_parts", OPT_BDB_CACHE_PARTS,
    "Number of parts to use for BDB cache.",
    (gptr*) &berkeley_cache_parts, (gptr*) &berkeley_cache_parts, 0, GET_ULONG,
    REQUIRED_ARG, 1, 1, 1024, 0, 1, 0},
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  { "bdb_cache_size", OPT_BDB_CACHE_SIZE,
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    "The buffer that is allocated to cache index and rows for BDB tables.",
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    (gptr*) &berkeley_cache_size, (gptr*) &berkeley_cache_size, 0, GET_ULL,
    REQUIRED_ARG, KEY_CACHE_SIZE, 20*1024, (ulonglong) ~0, 0, IO_SIZE, 0},
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  /* QQ: The following should be removed soon! (bdb_max_lock preferred) */
  {"bdb_lock_max", OPT_BDB_MAX_LOCK, "Synonym for bdb_max_lock.",
   (gptr*) &berkeley_max_lock, (gptr*) &berkeley_max_lock, 0, GET_ULONG,
   REQUIRED_ARG, 10000, 0, (long) ~0, 0, 1, 0},
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  {"bdb_log_buffer_size", OPT_BDB_LOG_BUFFER_SIZE,
   "The buffer that is allocated to cache index and rows for BDB tables.",
   (gptr*) &berkeley_log_buffer_size, (gptr*) &berkeley_log_buffer_size, 0,
   GET_ULONG, REQUIRED_ARG, 0, 256*1024L, ~0L, 0, 1024, 0},
  {"bdb_max_lock", OPT_BDB_MAX_LOCK,
   "The maximum number of locks you can have active on a BDB table.",
   (gptr*) &berkeley_max_lock, (gptr*) &berkeley_max_lock, 0, GET_ULONG,
   REQUIRED_ARG, 10000, 0, (long) ~0, 0, 1, 0},
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  {"bdb_region_size", OPT_BDB_REGION_SIZE,
    "The size of the underlying logging area of the Berkeley DB environment.",
    (gptr*) &berkeley_region_size, (gptr*) &berkeley_region_size, 0, GET_ULONG,
    OPT_ARG, 60*1024L, 60*1024L, (long) ~0, 0, 1, 0},
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#endif /* WITH_BERKELEY_STORAGE_ENGINE */
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  {"binlog_cache_size", OPT_BINLOG_CACHE_SIZE,
   "The size of the cache to hold the SQL statements for the binary log during a transaction. If you often use big, multi-statement transactions you can increase this to get more performance.",
   (gptr*) &binlog_cache_size, (gptr*) &binlog_cache_size, 0, GET_ULONG,
   REQUIRED_ARG, 32*1024L, IO_SIZE, ~0L, 0, IO_SIZE, 0},
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  {"bulk_insert_buffer_size", OPT_BULK_INSERT_BUFFER_SIZE,
   "Size of tree cache used in bulk insert optimisation. Note that this is a limit per thread!",
   (gptr*) &global_system_variables.bulk_insert_buff_size,
   (gptr*) &max_system_variables.bulk_insert_buff_size,
   0, GET_ULONG, REQUIRED_ARG, 8192*1024, 0, ~0L, 0, 1, 0},
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  {"connect_timeout", OPT_CONNECT_TIMEOUT,
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   "The number of seconds the mysqld server is waiting for a connect packet before responding with 'Bad handshake'.",
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    (gptr*) &connect_timeout, (gptr*) &connect_timeout,
   0, GET_ULONG, REQUIRED_ARG, CONNECT_TIMEOUT, 2, LONG_TIMEOUT, 0, 1, 0 },
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  { "date_format", OPT_DATE_FORMAT,
    "The DATE format (For future).",
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATE],
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATE],
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  { "datetime_format", OPT_DATETIME_FORMAT,
    "The DATETIME/TIMESTAMP format (for future).",
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME],
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME],
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  { "default_week_format", OPT_DEFAULT_WEEK_FORMAT,
    "The default week format used by WEEK() functions.",
    (gptr*) &global_system_variables.default_week_format,
    (gptr*) &max_system_variables.default_week_format,
    0, GET_ULONG, REQUIRED_ARG, 0, 0, 7L, 0, 1, 0},
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  {"delayed_insert_limit", OPT_DELAYED_INSERT_LIMIT,
   "After inserting delayed_insert_limit rows, the INSERT DELAYED handler will check if there are any SELECT statements pending. If so, it allows these to execute before continuing.",
    (gptr*) &delayed_insert_limit, (gptr*) &delayed_insert_limit, 0, GET_ULONG,
    REQUIRED_ARG, DELAYED_LIMIT, 1, ~0L, 0, 1, 0},
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  {"delayed_insert_timeout", OPT_DELAYED_INSERT_TIMEOUT,
   "How long a INSERT DELAYED thread should wait for INSERT statements before terminating.",
   (gptr*) &delayed_insert_timeout, (gptr*) &delayed_insert_timeout, 0,
   GET_ULONG, REQUIRED_ARG, DELAYED_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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  { "delayed_queue_size", OPT_DELAYED_QUEUE_SIZE,
    "What size queue (in rows) should be allocated for handling INSERT DELAYED. If the queue becomes full, any client that does INSERT DELAYED will wait until there is room in the queue again.",
    (gptr*) &delayed_queue_size, (gptr*) &delayed_queue_size, 0, GET_ULONG,
    REQUIRED_ARG, DELAYED_QUEUE_SIZE, 1, ~0L, 0, 1, 0},
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  {"expire_logs_days", OPT_EXPIRE_LOGS_DAYS,
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   "If non-zero, binary logs will be purged after expire_logs_days "
   "days; possible purges happen at startup and at binary log rotation.",
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   (gptr*) &expire_logs_days,
   (gptr*) &expire_logs_days, 0, GET_ULONG,
   REQUIRED_ARG, 0, 0, 99, 0, 1, 0},
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  { "flush_time", OPT_FLUSH_TIME,
    "A dedicated thread is created to flush all tables at the given interval.",
    (gptr*) &flush_time, (gptr*) &flush_time, 0, GET_ULONG, REQUIRED_ARG,
    FLUSH_TIME, 0, LONG_TIMEOUT, 0, 1, 0},
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  { "ft_boolean_syntax", OPT_FT_BOOLEAN_SYNTAX,
    "List of operators for MATCH ... AGAINST ( ... IN BOOLEAN MODE)",
    0, 0, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  { "ft_max_word_len", OPT_FT_MAX_WORD_LEN,
    "The maximum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable.",
    (gptr*) &ft_max_word_len, (gptr*) &ft_max_word_len, 0, GET_ULONG,
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    REQUIRED_ARG, HA_FT_MAXCHARLEN, 10, HA_FT_MAXCHARLEN, 0, 1, 0},
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  { "ft_min_word_len", OPT_FT_MIN_WORD_LEN,
    "The minimum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable.",
    (gptr*) &ft_min_word_len, (gptr*) &ft_min_word_len, 0, GET_ULONG,
    REQUIRED_ARG, 4, 1, HA_FT_MAXCHARLEN, 0, 1, 0},
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  { "ft_query_expansion_limit", OPT_FT_QUERY_EXPANSION_LIMIT,
    "Number of best matches to use for query expansion",
    (gptr*) &ft_query_expansion_limit, (gptr*) &ft_query_expansion_limit, 0, GET_ULONG,
    REQUIRED_ARG, 20, 0, 1000, 0, 1, 0},
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  { "ft_stopword_file", OPT_FT_STOPWORD_FILE,
    "Use stopwords from this file instead of built-in list.",
    (gptr*) &ft_stopword_file, (gptr*) &ft_stopword_file, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  { "group_concat_max_len", OPT_GROUP_CONCAT_MAX_LEN,
    "The maximum length of the result of function  group_concat.",
    (gptr*) &global_system_variables.group_concat_max_len,
    (gptr*) &max_system_variables.group_concat_max_len, 0, GET_ULONG,
    REQUIRED_ARG, 1024, 4, (long) ~0, 0, 1, 0},
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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  {"innodb_additional_mem_pool_size", OPT_INNODB_ADDITIONAL_MEM_POOL_SIZE,
   "Size of a memory pool InnoDB uses to store data dictionary information and other internal data structures.",
   (gptr*) &innobase_additional_mem_pool_size,
   (gptr*) &innobase_additional_mem_pool_size, 0, GET_LONG, REQUIRED_ARG,
   1*1024*1024L, 512*1024L, ~0L, 0, 1024, 0},
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  {"innodb_autoextend_increment", OPT_INNODB_AUTOEXTEND_INCREMENT,
   "Data file autoextend increment in megabytes",
   (gptr*) &srv_auto_extend_increment,
   (gptr*) &srv_auto_extend_increment,
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   0, GET_LONG, REQUIRED_ARG, 8L, 1L, 1000L, 0, 1L, 0},
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  {"innodb_buffer_pool_awe_mem_mb", OPT_INNODB_BUFFER_POOL_AWE_MEM_MB,
   "If Windows AWE is used, the size of InnoDB buffer pool allocated from the AWE memory.",
   (gptr*) &innobase_buffer_pool_awe_mem_mb, (gptr*) &innobase_buffer_pool_awe_mem_mb, 0,
   GET_LONG, REQUIRED_ARG, 0, 0, 63000, 0, 1, 0},
  {"innodb_buffer_pool_size", OPT_INNODB_BUFFER_POOL_SIZE,
   "The size of the memory buffer InnoDB uses to cache data and indexes of its tables.",
   (gptr*) &innobase_buffer_pool_size, (gptr*) &innobase_buffer_pool_size, 0,
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   GET_LL, REQUIRED_ARG, 8*1024*1024L, 1024*1024L, LONGLONG_MAX, 0,
   1024*1024L, 0},
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  {"innodb_concurrency_tickets", OPT_INNODB_CONCURRENCY_TICKETS,
   "Number of times a thread is allowed to enter InnoDB within the same \
    SQL query after it has once got the ticket",
   (gptr*) &srv_n_free_tickets_to_enter,
   (gptr*) &srv_n_free_tickets_to_enter,
   0, GET_LONG, REQUIRED_ARG, 500L, 1L, ~0L, 0, 1L, 0},
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  {"innodb_file_io_threads", OPT_INNODB_FILE_IO_THREADS,
   "Number of file I/O threads in InnoDB.", (gptr*) &innobase_file_io_threads,
   (gptr*) &innobase_file_io_threads, 0, GET_LONG, REQUIRED_ARG, 4, 4, 64, 0,
   1, 0},
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  {"innodb_force_recovery", OPT_INNODB_FORCE_RECOVERY,
   "Helps to save your data in case the disk image of the database becomes corrupt.",
   (gptr*) &innobase_force_recovery, (gptr*) &innobase_force_recovery, 0,
   GET_LONG, REQUIRED_ARG, 0, 0, 6, 0, 1, 0},
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  {"innodb_lock_wait_timeout", OPT_INNODB_LOCK_WAIT_TIMEOUT,
   "Timeout in seconds an InnoDB transaction may wait for a lock before being rolled back.",
   (gptr*) &innobase_lock_wait_timeout, (gptr*) &innobase_lock_wait_timeout,
   0, GET_LONG, REQUIRED_ARG, 50, 1, 1024 * 1024 * 1024, 0, 1, 0},
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  {"innodb_log_buffer_size", OPT_INNODB_LOG_BUFFER_SIZE,
   "The size of the buffer which InnoDB uses to write log to the log files on disk.",
   (gptr*) &innobase_log_buffer_size, (gptr*) &innobase_log_buffer_size, 0,
   GET_LONG, REQUIRED_ARG, 1024*1024L, 256*1024L, ~0L, 0, 1024, 0},
  {"innodb_log_file_size", OPT_INNODB_LOG_FILE_SIZE,
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   "Size of each log file in a log group.",
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   (gptr*) &innobase_log_file_size, (gptr*) &innobase_log_file_size, 0,
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   GET_LL, REQUIRED_ARG, 5*1024*1024L, 1*1024*1024L, LONGLONG_MAX, 0,
   1024*1024L, 0},
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  {"innodb_log_files_in_group", OPT_INNODB_LOG_FILES_IN_GROUP,
   "Number of log files in the log group. InnoDB writes to the files in a circular fashion. Value 3 is recommended here.",
   (gptr*) &innobase_log_files_in_group, (gptr*) &innobase_log_files_in_group,
   0, GET_LONG, REQUIRED_ARG, 2, 2, 100, 0, 1, 0},
  {"innodb_mirrored_log_groups", OPT_INNODB_MIRRORED_LOG_GROUPS,
   "Number of identical copies of log groups we keep for the database. Currently this should be set to 1.",
   (gptr*) &innobase_mirrored_log_groups,
   (gptr*) &innobase_mirrored_log_groups, 0, GET_LONG, REQUIRED_ARG, 1, 1, 10,
   0, 1, 0},
  {"innodb_open_files", OPT_INNODB_OPEN_FILES,
   "How many files at the maximum InnoDB keeps open at the same time.",
   (gptr*) &innobase_open_files, (gptr*) &innobase_open_files, 0,
   GET_LONG, REQUIRED_ARG, 300L, 10L, ~0L, 0, 1L, 0},
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  {"innodb_sync_spin_loops", OPT_INNODB_SYNC_SPIN_LOOPS,
   "Count of spin-loop rounds in InnoDB mutexes",
   (gptr*) &srv_n_spin_wait_rounds,
   (gptr*) &srv_n_spin_wait_rounds,
   0, GET_LONG, REQUIRED_ARG, 20L, 0L, ~0L, 0, 1L, 0},
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  {"innodb_thread_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
   "Helps in performance tuning in heavily concurrent environments.",
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   (gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency,
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   0, GET_LONG, REQUIRED_ARG, 20, 1, 1000, 0, 1, 0},
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  {"innodb_commit_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
   "Helps in performance tuning in heavily concurrent environments.",
   (gptr*) &srv_commit_concurrency, (gptr*) &srv_commit_concurrency,
   0, GET_LONG, REQUIRED_ARG, 0, 0, 1000, 0, 1, 0},
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  {"innodb_thread_sleep_delay", OPT_INNODB_THREAD_SLEEP_DELAY,
   "Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0"
    " disable a sleep",
   (gptr*) &srv_thread_sleep_delay,
   (gptr*) &srv_thread_sleep_delay,
   0, GET_LONG, REQUIRED_ARG, 10000L, 0L, ~0L, 0, 1L, 0},
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#endif /* WITH_INNOBASE_STORAGE_ENGINE */
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  {"interactive_timeout", OPT_INTERACTIVE_TIMEOUT,
   "The number of seconds the server waits for activity on an interactive connection before closing it.",
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   (gptr*) &global_system_variables.net_interactive_timeout,
   (gptr*) &max_system_variables.net_interactive_timeout, 0,
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   GET_ULONG, REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
  {"join_buffer_size", OPT_JOIN_BUFF_SIZE,
   "The size of the buffer that is used for full joins.",
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   (gptr*) &global_system_variables.join_buff_size,
   (gptr*) &max_system_variables.join_buff_size, 0, GET_ULONG,
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   REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD,
   IO_SIZE, 0},
  {"key_buffer_size", OPT_KEY_BUFFER_SIZE,
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   "The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford; 64M on a 256M machine that mainly runs MySQL is quite common.",
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   (gptr*) &dflt_key_cache_var.param_buff_size,
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   (gptr*) 0,
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   0, (GET_ULL | GET_ASK_ADDR),
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   REQUIRED_ARG, KEY_CACHE_SIZE, MALLOC_OVERHEAD, ~(ulong) 0, MALLOC_OVERHEAD,
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   IO_SIZE, 0},
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  {"key_cache_age_threshold", OPT_KEY_CACHE_AGE_THRESHOLD,
   "This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache",
   (gptr*) &dflt_key_cache_var.param_age_threshold,
   (gptr*) 0,
   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG, 
   300, 100, ~0L, 0, 100, 0},
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  {"key_cache_block_size", OPT_KEY_CACHE_BLOCK_SIZE,
   "The default size of key cache blocks",
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   (gptr*) &dflt_key_cache_var.param_block_size,
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   (gptr*) 0,
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   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG,
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   KEY_CACHE_BLOCK_SIZE , 512, 1024*16, MALLOC_OVERHEAD, 512, 0},
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  {"key_cache_division_limit", OPT_KEY_CACHE_DIVISION_LIMIT,
   "The minimum percentage of warm blocks in key cache",
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   (gptr*) &dflt_key_cache_var.param_division_limit,
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   (gptr*) 0,
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   0, (GET_ULONG | GET_ASK_ADDR) , REQUIRED_ARG, 100,
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   1, 100, 0, 1, 0},
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  {"long_query_time", OPT_LONG_QUERY_TIME,
   "Log all queries that have taken more than long_query_time seconds to execute to file.",
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   (gptr*) &global_system_variables.long_query_time,
   (gptr*) &max_system_variables.long_query_time, 0, GET_ULONG,
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   REQUIRED_ARG, 10, 1, LONG_TIMEOUT, 0, 1, 0},
  {"lower_case_table_names", OPT_LOWER_CASE_TABLE_NAMES,
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   "If set to 1 table names are stored in lowercase on disk and table names will be case-insensitive.  Should be set to 2 if you are using a case insensitive file system",
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   (gptr*) &lower_case_table_names,
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   (gptr*) &lower_case_table_names, 0, GET_UINT, OPT_ARG,
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#ifdef FN_NO_CASE_SENCE
    1
#else
    0
#endif
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   , 0, 2, 0, 1, 0},
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  {"max_allowed_packet", OPT_MAX_ALLOWED_PACKET,
   "Max packetlength to send/receive from to server.",
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   (gptr*) &global_system_variables.max_allowed_packet,
   (gptr*) &max_system_variables.max_allowed_packet, 0, GET_ULONG,
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   REQUIRED_ARG, 1024*1024L, 1024, 1024L*1024L*1024L, MALLOC_OVERHEAD, 1024, 0},
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  {"max_binlog_cache_size", OPT_MAX_BINLOG_CACHE_SIZE,
   "Can be used to restrict the total size used to cache a multi-transaction query.",
   (gptr*) &max_binlog_cache_size, (gptr*) &max_binlog_cache_size, 0,
   GET_ULONG, REQUIRED_ARG, ~0L, IO_SIZE, ~0L, 0, IO_SIZE, 0},
  {"max_binlog_size", OPT_MAX_BINLOG_SIZE,
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   "Binary log will be rotated automatically when the size exceeds this \
value. Will also apply to relay logs if max_relay_log_size is 0. \
The minimum value for this variable is 4096.",
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   (gptr*) &max_binlog_size, (gptr*) &max_binlog_size, 0, GET_ULONG,
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   REQUIRED_ARG, 1024*1024L*1024L, IO_SIZE, 1024*1024L*1024L, 0, IO_SIZE, 0},
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  {"max_connect_errors", OPT_MAX_CONNECT_ERRORS,
   "If there is more than this number of interrupted connections from a host this host will be blocked from further connections.",
   (gptr*) &max_connect_errors, (gptr*) &max_connect_errors, 0, GET_ULONG,
    REQUIRED_ARG, MAX_CONNECT_ERRORS, 1, ~0L, 0, 1, 0},
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  {"max_connections", OPT_MAX_CONNECTIONS,
   "The number of simultaneous clients allowed.", (gptr*) &max_connections,
   (gptr*) &max_connections, 0, GET_ULONG, REQUIRED_ARG, 100, 1, 16384, 0, 1,
   0},
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  {"max_delayed_threads", OPT_MAX_DELAYED_THREADS,
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   "Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero, which means INSERT DELAYED is not used.",
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   (gptr*) &global_system_variables.max_insert_delayed_threads,
   (gptr*) &max_system_variables.max_insert_delayed_threads,
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   0, GET_ULONG, REQUIRED_ARG, 20, 0, 16384, 0, 1, 0},
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  {"max_error_count", OPT_MAX_ERROR_COUNT,
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   "Max number of errors/warnings to store for a statement.",
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   (gptr*) &global_system_variables.max_error_count,
   (gptr*) &max_system_variables.max_error_count,
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   0, GET_ULONG, REQUIRED_ARG, DEFAULT_ERROR_COUNT, 0, 65535, 0, 1, 0},
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  {"max_heap_table_size", OPT_MAX_HEP_TABLE_SIZE,
   "Don't allow creation of heap tables bigger than this.",
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   (gptr*) &global_system_variables.max_heap_table_size,
   (gptr*) &max_system_variables.max_heap_table_size, 0, GET_ULONG,
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   REQUIRED_ARG, 16*1024*1024L, 16384, ~0L, MALLOC_OVERHEAD, 1024, 0},
  {"max_join_size", OPT_MAX_JOIN_SIZE,
   "Joins that are probably going to read more than max_join_size records return an error.",
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   (gptr*) &global_system_variables.max_join_size,
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   (gptr*) &max_system_variables.max_join_size, 0, GET_HA_ROWS, REQUIRED_ARG,
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   ~0L, 1, ~0L, 0, 1, 0},
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   {"max_length_for_sort_data", OPT_MAX_LENGTH_FOR_SORT_DATA,
5872
    "Max number of bytes in sorted records.",
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    (gptr*) &global_system_variables.max_length_for_sort_data,
    (gptr*) &max_system_variables.max_length_for_sort_data, 0, GET_ULONG,
    REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0},
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  {"max_relay_log_size", OPT_MAX_RELAY_LOG_SIZE,
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   "If non-zero: relay log will be rotated automatically when the size exceeds this value; if zero (the default): when the size exceeds max_binlog_size. 0 excepted, the minimum value for this variable is 4096.",
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   (gptr*) &max_relay_log_size, (gptr*) &max_relay_log_size, 0, GET_ULONG,
   REQUIRED_ARG, 0L, 0L, 1024*1024L*1024L, 0, IO_SIZE, 0},
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  { "max_seeks_for_key", OPT_MAX_SEEKS_FOR_KEY,
    "Limit assumed max number of seeks when looking up rows based on a key",
    (gptr*) &global_system_variables.max_seeks_for_key,
    (gptr*) &max_system_variables.max_seeks_for_key, 0, GET_ULONG,
    REQUIRED_ARG, ~0L, 1, ~0L, 0, 1, 0 },
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  {"max_sort_length", OPT_MAX_SORT_LENGTH,
   "The number of bytes to use when sorting BLOB or TEXT values (only the first max_sort_length bytes of each value are used; the rest are ignored).",
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   (gptr*) &global_system_variables.max_sort_length,
   (gptr*) &max_system_variables.max_sort_length, 0, GET_ULONG,
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   REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0},
  {"max_tmp_tables", OPT_MAX_TMP_TABLES,
   "Maximum number of temporary tables a client can keep open at a time.",
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   (gptr*) &global_system_variables.max_tmp_tables,
   (gptr*) &max_system_variables.max_tmp_tables, 0, GET_ULONG,
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   REQUIRED_ARG, 32, 1, ~0L, 0, 1, 0},
  {"max_user_connections", OPT_MAX_USER_CONNECTIONS,
   "The maximum number of active connections for a single user (0 = no limit).",
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   (gptr*) &max_user_connections, (gptr*) &max_user_connections, 0, GET_UINT,
   REQUIRED_ARG, 0, 1, ~0, 0, 1, 0},
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  {"max_write_lock_count", OPT_MAX_WRITE_LOCK_COUNT,
   "After this many write locks, allow some read locks to run in between.",
   (gptr*) &max_write_lock_count, (gptr*) &max_write_lock_count, 0, GET_ULONG,
   REQUIRED_ARG, ~0L, 1, ~0L, 0, 1, 0},
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  {"multi_range_count", OPT_MULTI_RANGE_COUNT,
   "Number of key ranges to request at once.",
   (gptr*) &global_system_variables.multi_range_count,
   (gptr*) &max_system_variables.multi_range_count, 0,
   GET_ULONG, REQUIRED_ARG, 256, 1, ~0L, 0, 1, 0},
5908
  {"myisam_block_size", OPT_MYISAM_BLOCK_SIZE,
5909
   "Block size to be used for MyISAM index pages.",
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   (gptr*) &opt_myisam_block_size,
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   (gptr*) &opt_myisam_block_size, 0, GET_ULONG, REQUIRED_ARG,
   MI_KEY_BLOCK_LENGTH, MI_MIN_KEY_BLOCK_LENGTH, MI_MAX_KEY_BLOCK_LENGTH,
   0, MI_MIN_KEY_BLOCK_LENGTH, 0},
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  {"myisam_data_pointer_size", OPT_MYISAM_DATA_POINTER_SIZE,
   "Default pointer size to be used for MyISAM tables.",
   (gptr*) &myisam_data_pointer_size,
   (gptr*) &myisam_data_pointer_size, 0, GET_ULONG, REQUIRED_ARG,
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   6, 2, 7, 0, 1, 0},
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  {"myisam_max_extra_sort_file_size", OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
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   "Deprecated option",
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   (gptr*) &global_system_variables.myisam_max_extra_sort_file_size,
   (gptr*) &max_system_variables.myisam_max_extra_sort_file_size,
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   0, GET_ULL, REQUIRED_ARG, (ulonglong) MI_MAX_TEMP_LENGTH,
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   0, (ulonglong) MAX_FILE_SIZE, 0, 1, 0},
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  {"myisam_max_sort_file_size", OPT_MYISAM_MAX_SORT_FILE_SIZE,
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   "Don't use the fast sort index method to created index if the temporary file would get bigger than this.",
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   (gptr*) &global_system_variables.myisam_max_sort_file_size,
   (gptr*) &max_system_variables.myisam_max_sort_file_size, 0,
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   GET_ULL, REQUIRED_ARG, (longlong) LONG_MAX, 0, (ulonglong) MAX_FILE_SIZE,
   0, 1024*1024, 0},
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  {"myisam_repair_threads", OPT_MYISAM_REPAIR_THREADS,
   "Number of threads to use when repairing MyISAM tables. The value of 1 disables parallel repair.",
   (gptr*) &global_system_variables.myisam_repair_threads,
   (gptr*) &max_system_variables.myisam_repair_threads, 0,
   GET_ULONG, REQUIRED_ARG, 1, 1, ~0L, 0, 1, 0},
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  {"myisam_sort_buffer_size", OPT_MYISAM_SORT_BUFFER_SIZE,
   "The buffer that is allocated when sorting the index when doing a REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE.",
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   (gptr*) &global_system_variables.myisam_sort_buff_size,
   (gptr*) &max_system_variables.myisam_sort_buff_size, 0,
5940
   GET_ULONG, REQUIRED_ARG, 8192*1024, 4, ~0L, 0, 1, 0},
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  {"myisam_use_mmap", OPT_MYISAM_USE_MMAP,
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   "Use memory mapping for reading and writing MyISAM tables",
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   (gptr*) &opt_myisam_use_mmap,
   (gptr*) &opt_myisam_use_mmap, 0, GET_BOOL, NO_ARG, 0, 
    0, 0, 0, 0, 0},
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  {"myisam_stats_method", OPT_MYISAM_STATS_METHOD,
   "Specifies how MyISAM index statistics collection code should threat NULLs. "
5948 5949
   "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), "
   "\"nulls_equal\" (emulate 4.0 behavior), and \"nulls_ignored\".",
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   (gptr*) &myisam_stats_method_str, (gptr*) &myisam_stats_method_str, 0,
    GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5952
  {"net_buffer_length", OPT_NET_BUFFER_LENGTH,
5953
   "Buffer length for TCP/IP and socket communication.",
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   (gptr*) &global_system_variables.net_buffer_length,
   (gptr*) &max_system_variables.net_buffer_length, 0, GET_ULONG,
   REQUIRED_ARG, 16384, 1024, 1024*1024L, 0, 1024, 0},
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  {"net_read_timeout", OPT_NET_READ_TIMEOUT,
   "Number of seconds to wait for more data from a connection before aborting the read.",
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   (gptr*) &global_system_variables.net_read_timeout,
   (gptr*) &max_system_variables.net_read_timeout, 0, GET_ULONG,
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   REQUIRED_ARG, NET_READ_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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  {"net_retry_count", OPT_NET_RETRY_COUNT,
   "If a read on a communication port is interrupted, retry this many times before giving up.",
   (gptr*) &global_system_variables.net_retry_count,
   (gptr*) &max_system_variables.net_retry_count,0,
   GET_ULONG, REQUIRED_ARG, MYSQLD_NET_RETRY_COUNT, 1, ~0L, 0, 1, 0},
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  {"net_write_timeout", OPT_NET_WRITE_TIMEOUT,
   "Number of seconds to wait for a block to be written to a connection  before aborting the write.",
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   (gptr*) &global_system_variables.net_write_timeout,
   (gptr*) &max_system_variables.net_write_timeout, 0, GET_ULONG,
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   REQUIRED_ARG, NET_WRITE_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
  {"open_files_limit", OPT_OPEN_FILES_LIMIT,
   "If this is not 0, then mysqld will use this value to reserve file descriptors to use with setrlimit(). If this value is 0 then mysqld will reserve max_connections*5 or max_connections + table_cache*2 (whichever is larger) number of files.",
   (gptr*) &open_files_limit, (gptr*) &open_files_limit, 0, GET_ULONG,
5975
   REQUIRED_ARG, 0, 0, OS_FILE_LIMIT, 0, 1, 0},
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  {"optimizer_prune_level", OPT_OPTIMIZER_PRUNE_LEVEL,
   "Controls the heuristic(s) applied during query optimization to prune less-promising partial plans from the optimizer search space. Meaning: 0 - do not apply any heuristic, thus perform exhaustive search; 1 - prune plans based on number of retrieved rows.",
   (gptr*) &global_system_variables.optimizer_prune_level,
   (gptr*) &max_system_variables.optimizer_prune_level,
   0, GET_ULONG, OPT_ARG, 1, 0, 1, 0, 1, 0},
  {"optimizer_search_depth", OPT_OPTIMIZER_SEARCH_DEPTH,
   "Maximum depth of search performed by the query optimizer. Values larger than the number of relations in a query result in better query plans, but take longer to compile a query. Smaller values than the number of tables in a relation result in faster optimization, but may produce very bad query plans. If set to 0, the system will automatically pick a reasonable value; if set to MAX_TABLES+2, the optimizer will switch to the original find_best (used for testing/comparison).",
   (gptr*) &global_system_variables.optimizer_search_depth,
   (gptr*) &max_system_variables.optimizer_search_depth,
   0, GET_ULONG, OPT_ARG, MAX_TABLES+1, 0, MAX_TABLES+2, 0, 1, 0},
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  {"plugin_dir", OPT_PLUGIN_DIR,
   "Directory for plugins.",
   (gptr*) &opt_plugin_dir_ptr, (gptr*) &opt_plugin_dir_ptr, 0,
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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   {"preload_buffer_size", OPT_PRELOAD_BUFFER_SIZE,
    "The size of the buffer that is allocated when preloading indexes",
    (gptr*) &global_system_variables.preload_buff_size,
    (gptr*) &max_system_variables.preload_buff_size, 0, GET_ULONG,
    REQUIRED_ARG, 32*1024L, 1024, 1024*1024*1024L, 0, 1, 0},
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  {"query_alloc_block_size", OPT_QUERY_ALLOC_BLOCK_SIZE,
   "Allocation block size for query parsing and execution",
   (gptr*) &global_system_variables.query_alloc_block_size,
   (gptr*) &max_system_variables.query_alloc_block_size, 0, GET_ULONG,
   REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ~0L, 0, 1024, 0},
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#ifdef HAVE_QUERY_CACHE
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  {"query_cache_limit", OPT_QUERY_CACHE_LIMIT,
   "Don't cache results that are bigger than this.",
   (gptr*) &query_cache_limit, (gptr*) &query_cache_limit, 0, GET_ULONG,
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   REQUIRED_ARG, 1024*1024L, 0, (longlong) ULONG_MAX, 0, 1, 0},
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  {"query_cache_min_res_unit", OPT_QUERY_CACHE_MIN_RES_UNIT,
   "minimal size of unit in wich space for results is allocated (last unit will be trimed after writing all result data.",
   (gptr*) &query_cache_min_res_unit, (gptr*) &query_cache_min_res_unit,
   0, GET_ULONG, REQUIRED_ARG, QUERY_CACHE_MIN_RESULT_DATA_SIZE,
   0, (longlong) ULONG_MAX, 0, 1, 0},
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#endif /*HAVE_QUERY_CACHE*/
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  {"query_cache_size", OPT_QUERY_CACHE_SIZE,
   "The memory allocated to store results from old queries.",
   (gptr*) &query_cache_size, (gptr*) &query_cache_size, 0, GET_ULONG,
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   REQUIRED_ARG, 0, 0, (longlong) ULONG_MAX, 0, 1024, 0},
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#ifdef HAVE_QUERY_CACHE
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  {"query_cache_type", OPT_QUERY_CACHE_TYPE,
6017
   "0 = OFF = Don't cache or retrieve results. 1 = ON = Cache all results except SELECT SQL_NO_CACHE ... queries. 2 = DEMAND = Cache only SELECT SQL_CACHE ... queries.",
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   (gptr*) &global_system_variables.query_cache_type,
   (gptr*) &max_system_variables.query_cache_type,
   0, GET_ULONG, REQUIRED_ARG, 1, 0, 2, 0, 1, 0},
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  {"query_cache_wlock_invalidate", OPT_QUERY_CACHE_WLOCK_INVALIDATE,
   "Invalidate queries in query cache on LOCK for write",
   (gptr*) &global_system_variables.query_cache_wlock_invalidate,
   (gptr*) &max_system_variables.query_cache_wlock_invalidate,
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
#endif /*HAVE_QUERY_CACHE*/
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  {"query_prealloc_size", OPT_QUERY_PREALLOC_SIZE,
   "Persistent buffer for query parsing and execution",
   (gptr*) &global_system_variables.query_prealloc_size,
   (gptr*) &max_system_variables.query_prealloc_size, 0, GET_ULONG,
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   REQUIRED_ARG, QUERY_ALLOC_PREALLOC_SIZE, QUERY_ALLOC_PREALLOC_SIZE,
   ~0L, 0, 1024, 0},
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  {"range_alloc_block_size", OPT_RANGE_ALLOC_BLOCK_SIZE,
   "Allocation block size for storing ranges during optimization",
   (gptr*) &global_system_variables.range_alloc_block_size,
   (gptr*) &max_system_variables.range_alloc_block_size, 0, GET_ULONG,
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   REQUIRED_ARG, RANGE_ALLOC_BLOCK_SIZE, 4096, ~0L, 0, 1024, 0},
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  {"read_buffer_size", OPT_RECORD_BUFFER,
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   "Each thread that does a sequential scan allocates a buffer of this size for each table it scans. If you do many sequential scans, you may want to increase this value.",
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   (gptr*) &global_system_variables.read_buff_size,
   (gptr*) &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG,
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   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE, 0},
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  {"read_only", OPT_READONLY,
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   "Make all non-temporary tables read-only, with the exception for replication (slave) threads and users with the SUPER privilege",
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   (gptr*) &opt_readonly,
   (gptr*) &opt_readonly,
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
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  {"read_rnd_buffer_size", OPT_RECORD_RND_BUFFER,
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   "When reading rows in sorted order after a sort, the rows are read through this buffer to avoid a disk seeks. If not set, then it's set to the value of record_buffer.",
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   (gptr*) &global_system_variables.read_rnd_buff_size,
   (gptr*) &max_system_variables.read_rnd_buff_size, 0,
   GET_ULONG, REQUIRED_ARG, 256*1024L, IO_SIZE*2+MALLOC_OVERHEAD,
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   ~0L, MALLOC_OVERHEAD, IO_SIZE, 0},
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  {"div_precision_increment", OPT_DIV_PRECINCREMENT,
   "Precision of the result of '/' operator will be increased on that value.",
   (gptr*) &global_system_variables.div_precincrement,
   (gptr*) &max_system_variables.div_precincrement, 0, GET_ULONG,
   REQUIRED_ARG, 4, 0, DECIMAL_MAX_SCALE, 0, 0, 0},
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  {"record_buffer", OPT_RECORD_BUFFER,
   "Alias for read_buffer_size",
   (gptr*) &global_system_variables.read_buff_size,
   (gptr*) &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG,
   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE, 0},
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  {"max_sp_recursion_depth", OPT_MAX_SP_RECURSION_DEPTH,
   "Maximum stored procedure recursion depth. (discussed with docs).",
   (gptr*) &global_system_variables.max_sp_recursion_depth,
   (gptr*) &max_system_variables.max_sp_recursion_depth, 0, GET_ULONG,
   OPT_ARG, 0, 0, 255, 0, 1, 0 },
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#ifdef HAVE_REPLICATION
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  {"relay_log_purge", OPT_RELAY_LOG_PURGE,
   "0 = do not purge relay logs. 1 = purge them as soon as they are no more needed.",
   (gptr*) &relay_log_purge,
   (gptr*) &relay_log_purge, 0, GET_BOOL, NO_ARG,
   1, 0, 1, 0, 1, 0},
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  {"relay_log_space_limit", OPT_RELAY_LOG_SPACE_LIMIT,
6076
   "Maximum space to use for all relay logs.",
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   (gptr*) &relay_log_space_limit,
   (gptr*) &relay_log_space_limit, 0, GET_ULL, REQUIRED_ARG, 0L, 0L,
6079
   (longlong) ULONG_MAX, 0, 1, 0},
6080
  {"slave_compressed_protocol", OPT_SLAVE_COMPRESSED_PROTOCOL,
6081
   "Use compression on master/slave protocol.",
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   (gptr*) &opt_slave_compressed_protocol,
   (gptr*) &opt_slave_compressed_protocol,
6084
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
6085
  {"slave_net_timeout", OPT_SLAVE_NET_TIMEOUT,
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   "Number of seconds to wait for more data from a master/slave connection before aborting the read.",
   (gptr*) &slave_net_timeout, (gptr*) &slave_net_timeout, 0,
6088
   GET_ULONG, REQUIRED_ARG, SLAVE_NET_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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  {"slave_transaction_retries", OPT_SLAVE_TRANS_RETRIES,
   "Number of times the slave SQL thread will retry a transaction in case "
   "it failed with a deadlock or elapsed lock wait timeout, "
   "before giving up and stopping.",
   (gptr*) &slave_trans_retries, (gptr*) &slave_trans_retries, 0,
6094
   GET_ULONG, REQUIRED_ARG, 10L, 0L, (longlong) ULONG_MAX, 0, 1, 0},
6095
#endif /* HAVE_REPLICATION */
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  {"slow_launch_time", OPT_SLOW_LAUNCH_TIME,
   "If creating the thread takes longer than this value (in seconds), the Slow_launch_threads counter will be incremented.",
   (gptr*) &slow_launch_time, (gptr*) &slow_launch_time, 0, GET_ULONG,
   REQUIRED_ARG, 2L, 0L, LONG_TIMEOUT, 0, 1, 0},
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6100
  {"sort_buffer_size", OPT_SORT_BUFFER,
6101
   "Each thread that needs to do a sort allocates a buffer of this size.",
6102 6103
   (gptr*) &global_system_variables.sortbuff_size,
   (gptr*) &max_system_variables.sortbuff_size, 0, GET_ULONG, REQUIRED_ARG,
6104 6105
   MAX_SORT_MEMORY, MIN_SORT_MEMORY+MALLOC_OVERHEAD*2, ~0L, MALLOC_OVERHEAD,
   1, 0},
6106
#ifdef WITH_BERKELEY_STORAGE_ENGINE
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6107
  {"sync-bdb-logs", OPT_BDB_SYNC,
6108
   "Synchronously flush Berkeley DB logs. Enabled by default",
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   (gptr*) &opt_sync_bdb_logs, (gptr*) &opt_sync_bdb_logs, 0, GET_BOOL,
   NO_ARG, 1, 0, 0, 0, 0, 0},
6111
#endif /* WITH_BERKELEY_STORAGE_ENGINE */
6112
  {"sync-binlog", OPT_SYNC_BINLOG,
6113 6114 6115
   "Synchronously flush binary log to disk after every #th event. "
   "Use 0 (default) to disable synchronous flushing.",
   (gptr*) &sync_binlog_period, (gptr*) &sync_binlog_period, 0, GET_ULONG,
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6116
   REQUIRED_ARG, 0, 0, ~0L, 0, 1, 0},
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  {"sync-frm", OPT_SYNC_FRM, "Sync .frm to disk on create. Enabled by default.",
   (gptr*) &opt_sync_frm, (gptr*) &opt_sync_frm, 0, GET_BOOL, NO_ARG, 1, 0,
   0, 0, 0, 0},
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6120
#ifdef HAVE_REPLICATION
6121
  {"sync-replication", OPT_SYNC_REPLICATION,
6122
   "Enable synchronous replication.",
6123 6124 6125 6126
   (gptr*) &global_system_variables.sync_replication,
   (gptr*) &global_system_variables.sync_replication,
   0, GET_ULONG, REQUIRED_ARG, 0, 0, 1, 0, 1, 0},
  {"sync-replication-slave-id", OPT_SYNC_REPLICATION_SLAVE_ID,
6127
   "Synchronous replication is wished for this slave.",
6128 6129 6130 6131
   (gptr*) &global_system_variables.sync_replication_slave_id,
   (gptr*) &global_system_variables.sync_replication_slave_id,
   0, GET_ULONG, REQUIRED_ARG, 0, 0, ~0L, 0, 1, 0},
  {"sync-replication-timeout", OPT_SYNC_REPLICATION_TIMEOUT,
6132
   "Synchronous replication timeout.",
6133 6134 6135
   (gptr*) &global_system_variables.sync_replication_timeout,
   (gptr*) &global_system_variables.sync_replication_timeout,
   0, GET_ULONG, REQUIRED_ARG, 10, 0, ~0L, 0, 1, 0},
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6136
#endif /* HAVE_REPLICATION */
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6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6150 6151
  {"table_cache", OPT_TABLE_OPEN_CACHE,
   "Deprecated; use --table_open_cache instead.",
   (gptr*) &table_cache_size, (gptr*) &table_cache_size, 0, GET_ULONG,
   REQUIRED_ARG, 64, 1, 512*1024L, 0, 1, 0},
  {"table_definition_cache", OPT_TABLE_DEF_CACHE,
   "The number of cached table definitions.",
   (gptr*) &table_def_size, (gptr*) &table_def_size,
   0, GET_ULONG, REQUIRED_ARG, 128, 1, 512*1024L, 0, 1, 0},
  {"table_open_cache", OPT_TABLE_OPEN_CACHE,
   "The number of cached open tables.",
   (gptr*) &table_cache_size, (gptr*) &table_cache_size,
   0, GET_ULONG, REQUIRED_ARG, 64, 1, 512*1024L, 0, 1, 0},
  {"table_lock_wait_timeout", OPT_TABLE_LOCK_WAIT_TIMEOUT,
   "Timeout in seconds to wait for a table level lock before returning an "
   "error. Used only if the connection has active cursors.",
6152 6153
   (gptr*) &table_lock_wait_timeout, (gptr*) &table_lock_wait_timeout,
   0, GET_ULONG, REQUIRED_ARG, 50, 1, 1024 * 1024 * 1024, 0, 1, 0},
6154 6155 6156 6157
  {"thread_cache_size", OPT_THREAD_CACHE_SIZE,
   "How many threads we should keep in a cache for reuse.",
   (gptr*) &thread_cache_size, (gptr*) &thread_cache_size, 0, GET_ULONG,
   REQUIRED_ARG, 0, 0, 16384, 0, 1, 0},
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6158 6159 6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170
  {"thread_concurrency", OPT_THREAD_CONCURRENCY,
   "Permits the application to give the threads system a hint for the desired number of threads that should be run at the same time.",
   (gptr*) &concurrency, (gptr*) &concurrency, 0, GET_ULONG, REQUIRED_ARG,
   DEFAULT_CONCURRENCY, 1, 512, 0, 1, 0},
  {"thread_stack", OPT_THREAD_STACK,
   "The stack size for each thread.", (gptr*) &thread_stack,
   (gptr*) &thread_stack, 0, GET_ULONG, REQUIRED_ARG,DEFAULT_THREAD_STACK,
   1024L*128L, ~0L, 0, 1024, 0},
  { "time_format", OPT_TIME_FORMAT,
    "The TIME format (for future).",
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6171 6172
  {"tmp_table_size", OPT_TMP_TABLE_SIZE,
   "If an in-memory temporary table exceeds this size, MySQL will automatically convert it to an on-disk MyISAM table.",
6173 6174
   (gptr*) &global_system_variables.tmp_table_size,
   (gptr*) &max_system_variables.tmp_table_size, 0, GET_ULONG,
6175
   REQUIRED_ARG, 32*1024*1024L, 1024, ~0L, 0, 1, 0},
6176 6177 6178 6179 6180 6181 6182 6183 6184 6185
  {"transaction_alloc_block_size", OPT_TRANS_ALLOC_BLOCK_SIZE,
   "Allocation block size for transactions to be stored in binary log",
   (gptr*) &global_system_variables.trans_alloc_block_size,
   (gptr*) &max_system_variables.trans_alloc_block_size, 0, GET_ULONG,
   REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ~0L, 0, 1024, 0},
  {"transaction_prealloc_size", OPT_TRANS_PREALLOC_SIZE,
   "Persistent buffer for transactions to be stored in binary log",
   (gptr*) &global_system_variables.trans_prealloc_size,
   (gptr*) &max_system_variables.trans_prealloc_size, 0, GET_ULONG,
   REQUIRED_ARG, TRANS_ALLOC_PREALLOC_SIZE, 1024, ~0L, 0, 1024, 0},
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6186 6187 6188 6189 6190
  {"updatable_views_with_limit", OPT_UPDATABLE_VIEWS_WITH_LIMIT,
   "1 = YES = Don't issue an error message (warning only) if a VIEW without presence of a key of the underlying table is used in queries with a LIMIT clause for updating. 0 = NO = Prohibit update of a VIEW, which does not contain a key of the underlying table and the query uses a LIMIT clause (usually get from GUI tools).",
   (gptr*) &global_system_variables.updatable_views_with_limit,
   (gptr*) &max_system_variables.updatable_views_with_limit,
   0, GET_ULONG, REQUIRED_ARG, 1, 0, 1, 0, 1, 0},
6191
  {"wait_timeout", OPT_WAIT_TIMEOUT,
6192
   "The number of seconds the server waits for activity on a connection before closing it.",
6193 6194
   (gptr*) &global_system_variables.net_wait_timeout,
   (gptr*) &max_system_variables.net_wait_timeout, 0, GET_ULONG,
6195 6196
   REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, IF_WIN(INT_MAX32/1000, LONG_TIMEOUT),
   0, 1, 0},
6197
  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
6198
};
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6199

6200
static int show_question(THD *thd, SHOW_VAR *var, char *buff)
6201
{
6202
  var->type= SHOW_LONGLONG;
6203 6204 6205 6206
  var->value= (char *)&thd->query_id;
  return 0;
}

6207
static int show_net_compression(THD *thd, SHOW_VAR *var, char *buff)
6208
{
6209
  var->type= SHOW_MY_BOOL;
6210 6211 6212 6213
  var->value= (char *)&thd->net.compress;
  return 0;
}

6214
static int show_starttime(THD *thd, SHOW_VAR *var, char *buff)
6215
{
6216
  var->type= SHOW_LONG;
6217 6218 6219 6220 6221 6222
  var->value= buff;
  *((long *)buff)= (long) (thd->query_start() - start_time);
  return 0;
}

#ifdef HAVE_REPLICATION
6223
static int show_rpl_status(THD *thd, SHOW_VAR *var, char *buff)
6224
{
6225
  var->type= SHOW_CHAR;
6226 6227 6228 6229
  var->value= const_cast<char*>(rpl_status_type[(int)rpl_status]);
  return 0;
}

6230
static int show_slave_running(THD *thd, SHOW_VAR *var, char *buff)
6231
{
6232
  var->type= SHOW_CHAR;
6233 6234 6235 6236 6237 6238 6239
  pthread_mutex_lock(&LOCK_active_mi);
  var->value= const_cast<char*>((active_mi && active_mi->slave_running &&
               active_mi->rli.slave_running) ? "ON" : "OFF");
  pthread_mutex_unlock(&LOCK_active_mi);
  return 0;
}

6240
static int show_slave_retried_trans(THD *thd, SHOW_VAR *var, char *buff)
6241 6242 6243 6244 6245 6246 6247 6248
{
  /*
    TODO: with multimaster, have one such counter per line in
    SHOW SLAVE STATUS, and have the sum over all lines here.
  */
  pthread_mutex_lock(&LOCK_active_mi);
  if (active_mi)
  {
6249
    var->type= SHOW_LONG;
6250 6251 6252 6253 6254 6255
    var->value= buff;
    pthread_mutex_lock(&active_mi->rli.data_lock);
    *((long *)buff)= (long)active_mi->rli.retried_trans;
    pthread_mutex_unlock(&active_mi->rli.data_lock);
  }
  else
6256
    var->type= SHOW_UNDEF;
6257 6258 6259 6260 6261
  pthread_mutex_unlock(&LOCK_active_mi);
  return 0;
}
#endif /* HAVE_REPLICATION */

6262
static int show_open_tables(THD *thd, SHOW_VAR *var, char *buff)
6263
{
6264
  var->type= SHOW_LONG;
6265 6266 6267 6268 6269
  var->value= buff;
  *((long *)buff)= (long)cached_open_tables();
  return 0;
}

6270
static int show_table_definitions(THD *thd, SHOW_VAR *var, char *buff)
6271
{
6272
  var->type= SHOW_LONG;
6273 6274 6275 6276 6277 6278 6279
  var->value= buff;
  *((long *)buff)= (long)cached_table_definitions();
  return 0;
}

#ifdef HAVE_OPENSSL
/* Functions relying on CTX */
6280
static int show_ssl_ctx_sess_accept(THD *thd, SHOW_VAR *var, char *buff)
6281
{
6282
  var->type= SHOW_LONG;
6283 6284 6285 6286 6287 6288
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept(ssl_acceptor_fd->ssl_context));
  return 0;
}

6289
static int show_ssl_ctx_sess_accept_good(THD *thd, SHOW_VAR *var, char *buff)
6290
{
6291
  var->type= SHOW_LONG;
6292 6293 6294 6295 6296 6297
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

6298
static int show_ssl_ctx_sess_connect_good(THD *thd, SHOW_VAR *var, char *buff)
6299
{
6300
  var->type= SHOW_LONG;
6301 6302 6303 6304 6305 6306
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

6307
static int show_ssl_ctx_sess_accept_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
6308
{
6309
  var->type= SHOW_LONG;
6310 6311 6312 6313 6314 6315
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

6316
static int show_ssl_ctx_sess_connect_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
6317
{
6318
  var->type= SHOW_LONG;
6319 6320 6321 6322 6323 6324
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

6325
static int show_ssl_ctx_sess_cb_hits(THD *thd, SHOW_VAR *var, char *buff)
6326
{
6327
  var->type= SHOW_LONG;
6328 6329 6330 6331 6332 6333
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cb_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

6334
static int show_ssl_ctx_sess_hits(THD *thd, SHOW_VAR *var, char *buff)
6335
{
6336
  var->type= SHOW_LONG;
6337 6338 6339 6340 6341 6342
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

6343
static int show_ssl_ctx_sess_cache_full(THD *thd, SHOW_VAR *var, char *buff)
6344
{
6345
  var->type= SHOW_LONG;
6346 6347 6348 6349 6350 6351
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cache_full(ssl_acceptor_fd->ssl_context));
  return 0;
}

6352
static int show_ssl_ctx_sess_misses(THD *thd, SHOW_VAR *var, char *buff)
6353
{
6354
  var->type= SHOW_LONG;
6355 6356 6357 6358 6359 6360
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_misses(ssl_acceptor_fd->ssl_context));
  return 0;
}

6361
static int show_ssl_ctx_sess_timeouts(THD *thd, SHOW_VAR *var, char *buff)
6362
{
6363
  var->type= SHOW_LONG;
6364 6365 6366 6367 6368 6369
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context));
  return 0;
}

6370
static int show_ssl_ctx_sess_number(THD *thd, SHOW_VAR *var, char *buff)
6371
{
6372
  var->type= SHOW_LONG;
6373 6374 6375 6376 6377 6378
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context));
  return 0;
}

6379
static int show_ssl_ctx_sess_connect(THD *thd, SHOW_VAR *var, char *buff)
6380
{
6381
  var->type= SHOW_LONG;
6382 6383 6384 6385 6386 6387
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context));
  return 0;
}

6388
static int show_ssl_ctx_sess_get_cache_size(THD *thd, SHOW_VAR *var, char *buff)
6389
{
6390
  var->type= SHOW_LONG;
6391 6392 6393 6394 6395 6396
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context));
  return 0;
}

6397
static int show_ssl_ctx_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
6398
{
6399
  var->type= SHOW_LONG;
6400 6401 6402 6403 6404 6405
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context));
  return 0;
}

6406
static int show_ssl_ctx_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
6407
{
6408
  var->type= SHOW_LONG;
6409 6410 6411 6412 6413 6414
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context));
  return 0;
}

6415
static int show_ssl_ctx_get_session_cache_mode(THD *thd, SHOW_VAR *var, char *buff)
6416
{
6417
  var->type= SHOW_CHAR;
6418 6419 6420 6421 6422 6423 6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441
  if (!ssl_acceptor_fd)
    var->value= "NONE";
  else
    switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
    {
    case SSL_SESS_CACHE_OFF:
      var->value= "OFF"; break;
    case SSL_SESS_CACHE_CLIENT:
      var->value= "CLIENT"; break;
    case SSL_SESS_CACHE_SERVER:
      var->value= "SERVER"; break;
    case SSL_SESS_CACHE_BOTH:
      var->value= "BOTH"; break;
    case SSL_SESS_CACHE_NO_AUTO_CLEAR:
      var->value= "NO_AUTO_CLEAR"; break;
    case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
      var->value= "NO_INTERNAL_LOOKUP"; break;
    default:
      var->value= "Unknown"; break;
    }
  return 0;
}

/* Functions relying on SSL */
6442
static int show_ssl_get_version(THD *thd, SHOW_VAR *var, char *buff)
6443
{
6444
  var->type= SHOW_CHAR;
6445 6446 6447 6448 6449
  var->value= const_cast<char*>(thd->net.vio->ssl_arg ?
        SSL_get_version((SSL*) thd->net.vio->ssl_arg) : "");
  return 0;
}

6450
static int show_ssl_session_reused(THD *thd, SHOW_VAR *var, char *buff)
6451
{
6452
  var->type= SHOW_LONG;
6453 6454 6455 6456 6457 6458
  var->value= buff;
  *((long *)buff)= (long)thd->net.vio->ssl_arg ?
                         SSL_session_reused((SSL*) thd->net.vio->ssl_arg) :
                         0;
}

6459
static int show_ssl_get_default_timeout(THD *thd, SHOW_VAR *var, char *buff)
6460
{
6461
  var->type= SHOW_LONG;
6462 6463 6464 6465 6466 6467 6468
  var->value= buff;
  *((long *)buff)= (long)thd->net.vio->ssl_arg ?
                         SSL_get_default_timeout((SSL*)thd->net.vio->ssl_arg) :
                         0;
  return 0;
}

6469
static int show_ssl_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
6470
{
6471
  var->type= SHOW_LONG;
6472 6473 6474 6475 6476 6477 6478
  var->value= buff;
  *((long *)buff)= (long)thd->net.vio->ssl_arg ?
                         SSL_get_verify_mode((SSL*)thd->net.vio->ssl_arg) :
                         0;
  return 0;
}

6479
static int show_ssl_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
6480
{
6481
  var->type= SHOW_LONG;
6482 6483 6484 6485 6486 6487 6488
  var->value= buff;
  *((long *)buff)= (long)thd->net.vio->ssl_arg ?
                         SSL_get_verify_depth((SSL*)thd->net.vio->ssl_arg) :
                         0;
  return 0;
}

6489
static int show_ssl_get_cipher(THD *thd, SHOW_VAR *var, char *buff)
6490
{
6491
  var->type= SHOW_CHAR;
6492 6493 6494 6495 6496
  var->value= const_cast<char*>(thd->net.vio->ssl_arg ?
              SSL_get_cipher((SSL*) thd->net.vio->ssl_arg) : "");
  return 0;
}

6497
static int show_ssl_get_cipher_list(THD *thd, SHOW_VAR *var, char *buff)
6498
{
6499
  var->type= SHOW_CHAR;
6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520
  var->value= buff;
  if (thd->net.vio->ssl_arg)
  {
    int i;
    const char *p;
    for (i=0 ; (p= SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i)); i++)
    {
      buff= strmov(buff, p);
      *buff++= ':';
    }
    if (i)
      buff--;
  }
  *buff=0;
  return 0;
}

#endif /* HAVE_OPENSSL */

#ifdef WITH_INNOBASE_STORAGE_ENGINE
int innodb_export_status(void);
6521
static int show_innodb_vars(THD *thd, SHOW_VAR *var, char *buff)
6522 6523 6524 6525 6526 6527 6528
{
  innodb_export_status();
  var->type= SHOW_ARRAY;
  var->value= (char *) &innodb_status_variables;
  return 0;
}
#endif
6529

6530
SHOW_VAR status_vars[]= {
6531 6532
  {"Aborted_clients",          (char*) &aborted_threads,        SHOW_LONG},
  {"Aborted_connects",         (char*) &aborted_connects,       SHOW_LONG},
6533 6534
  {"Binlog_cache_disk_use",    (char*) &binlog_cache_disk_use,  SHOW_LONG},
  {"Binlog_cache_use",         (char*) &binlog_cache_use,       SHOW_LONG},
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  {"Bytes_received",           (char*) offsetof(STATUS_VAR, bytes_received), SHOW_LONG_STATUS},
  {"Bytes_sent",               (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONG_STATUS},
  {"Com_admin_commands",       (char*) offsetof(STATUS_VAR, com_other), SHOW_LONG_STATUS},
  {"Com_alter_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB]), SHOW_LONG_STATUS},
  {"Com_alter_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLE]), SHOW_LONG_STATUS},
  {"Com_analyze",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ANALYZE]), SHOW_LONG_STATUS},
  {"Com_backup_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BACKUP_TABLE]), SHOW_LONG_STATUS},
  {"Com_begin",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BEGIN]), SHOW_LONG_STATUS},
  {"Com_change_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_DB]), SHOW_LONG_STATUS},
  {"Com_change_master",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_MASTER]), SHOW_LONG_STATUS},
  {"Com_check",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECK]), SHOW_LONG_STATUS},
  {"Com_checksum",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECKSUM]), SHOW_LONG_STATUS},
  {"Com_commit",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_COMMIT]), SHOW_LONG_STATUS},
  {"Com_create_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_DB]), SHOW_LONG_STATUS},
  {"Com_create_function",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_FUNCTION]), SHOW_LONG_STATUS},
  {"Com_create_index",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_INDEX]), SHOW_LONG_STATUS},
  {"Com_create_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TABLE]), SHOW_LONG_STATUS},
  {"Com_dealloc_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DEALLOCATE_PREPARE]), SHOW_LONG_STATUS},
  {"Com_delete",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE]), SHOW_LONG_STATUS},
  {"Com_delete_multi",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE_MULTI]), SHOW_LONG_STATUS},
  {"Com_do",                   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DO]), SHOW_LONG_STATUS},
  {"Com_drop_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_DB]), SHOW_LONG_STATUS},
  {"Com_drop_function",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_FUNCTION]), SHOW_LONG_STATUS},
  {"Com_drop_index",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_INDEX]), SHOW_LONG_STATUS},
  {"Com_drop_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_TABLE]), SHOW_LONG_STATUS},
  {"Com_drop_user",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_USER]), SHOW_LONG_STATUS},
6561
  {"Com_execute_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EXECUTE]), SHOW_LONG_STATUS},
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  {"Com_flush",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_FLUSH]), SHOW_LONG_STATUS},
  {"Com_grant",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_GRANT]), SHOW_LONG_STATUS},
  {"Com_ha_close",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_CLOSE]), SHOW_LONG_STATUS},
  {"Com_ha_open",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_OPEN]), SHOW_LONG_STATUS},
  {"Com_ha_read",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_READ]), SHOW_LONG_STATUS},
  {"Com_help",                 (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HELP]), SHOW_LONG_STATUS},
  {"Com_insert",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT]), SHOW_LONG_STATUS},
  {"Com_insert_select",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT_SELECT]), SHOW_LONG_STATUS},
  {"Com_kill",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_KILL]), SHOW_LONG_STATUS},
  {"Com_load",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD]), SHOW_LONG_STATUS},
  {"Com_load_master_data",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_DATA]), SHOW_LONG_STATUS},
  {"Com_load_master_table",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_TABLE]), SHOW_LONG_STATUS},
  {"Com_lock_tables",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOCK_TABLES]), SHOW_LONG_STATUS},
  {"Com_optimize",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_OPTIMIZE]), SHOW_LONG_STATUS},
  {"Com_preload_keys",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PRELOAD_KEYS]), SHOW_LONG_STATUS},
  {"Com_prepare_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PREPARE]), SHOW_LONG_STATUS},
  {"Com_purge",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE]), SHOW_LONG_STATUS},
  {"Com_purge_before_date",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE_BEFORE]), SHOW_LONG_STATUS},
  {"Com_rename_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RENAME_TABLE]), SHOW_LONG_STATUS},
  {"Com_repair",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPAIR]), SHOW_LONG_STATUS},
  {"Com_replace",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE]), SHOW_LONG_STATUS},
  {"Com_replace_select",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE_SELECT]), SHOW_LONG_STATUS},
  {"Com_reset",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESET]), SHOW_LONG_STATUS},
  {"Com_restore_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESTORE_TABLE]), SHOW_LONG_STATUS},
  {"Com_revoke",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE]), SHOW_LONG_STATUS},
  {"Com_revoke_all",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE_ALL]), SHOW_LONG_STATUS},
  {"Com_rollback",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ROLLBACK]), SHOW_LONG_STATUS},
  {"Com_savepoint",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SAVEPOINT]), SHOW_LONG_STATUS},
  {"Com_select",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SELECT]), SHOW_LONG_STATUS},
  {"Com_set_option",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SET_OPTION]), SHOW_LONG_STATUS},
  {"Com_show_binlog_events",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOG_EVENTS]), SHOW_LONG_STATUS},
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  {"Com_show_binlogs",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOGS]), SHOW_LONG_STATUS},
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  {"Com_show_charsets",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CHARSETS]), SHOW_LONG_STATUS},
  {"Com_show_collations",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLLATIONS]), SHOW_LONG_STATUS},
  {"Com_show_column_types",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLUMN_TYPES]), SHOW_LONG_STATUS},
  {"Com_show_create_db",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_DB]), SHOW_LONG_STATUS},
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  {"Com_show_create_table",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE]), SHOW_LONG_STATUS},
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6599
  {"Com_show_databases",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_DATABASES]), SHOW_LONG_STATUS},
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  {"Com_show_engine_logs",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_LOGS]), SHOW_LONG_STATUS},
  {"Com_show_engine_mutex",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_MUTEX]), SHOW_LONG_STATUS},
  {"Com_show_engine_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_STATUS]), SHOW_LONG_STATUS},
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  {"Com_show_errors",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ERRORS]), SHOW_LONG_STATUS},
  {"Com_show_fields",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_FIELDS]), SHOW_LONG_STATUS},
  {"Com_show_grants",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_GRANTS]), SHOW_LONG_STATUS},
  {"Com_show_keys",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_KEYS]), SHOW_LONG_STATUS},
  {"Com_show_master_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_MASTER_STAT]), SHOW_LONG_STATUS},
  {"Com_show_new_master",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_NEW_MASTER]), SHOW_LONG_STATUS},
  {"Com_show_open_tables",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_OPEN_TABLES]), SHOW_LONG_STATUS},
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6610
  {"Com_show_plugins",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PLUGINS]), SHOW_LONG_STATUS},
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  {"Com_show_privileges",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PRIVILEGES]), SHOW_LONG_STATUS},
  {"Com_show_processlist",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROCESSLIST]), SHOW_LONG_STATUS},
  {"Com_show_slave_hosts",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_HOSTS]), SHOW_LONG_STATUS},
  {"Com_show_slave_status",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_STAT]), SHOW_LONG_STATUS},
  {"Com_show_status",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS]), SHOW_LONG_STATUS},
  {"Com_show_storage_engines", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STORAGE_ENGINES]), SHOW_LONG_STATUS},
  {"Com_show_tables",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLES]), SHOW_LONG_STATUS},
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  {"Com_show_triggers",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TRIGGERS]), SHOW_LONG_STATUS},
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  {"Com_show_variables",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_VARIABLES]), SHOW_LONG_STATUS},
  {"Com_show_warnings",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_WARNS]), SHOW_LONG_STATUS},
  {"Com_slave_start",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_START]), SHOW_LONG_STATUS},
  {"Com_slave_stop",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_STOP]), SHOW_LONG_STATUS},
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6623
  {"Com_stmt_close",           (char*) offsetof(STATUS_VAR, com_stmt_close), SHOW_LONG_STATUS},
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  {"Com_stmt_execute",         (char*) offsetof(STATUS_VAR, com_stmt_execute), SHOW_LONG_STATUS},
  {"Com_stmt_fetch",           (char*) offsetof(STATUS_VAR, com_stmt_fetch), SHOW_LONG_STATUS},
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  {"Com_stmt_prepare",         (char*) offsetof(STATUS_VAR, com_stmt_prepare), SHOW_LONG_STATUS},
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  {"Com_stmt_reset",           (char*) offsetof(STATUS_VAR, com_stmt_reset), SHOW_LONG_STATUS},
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  {"Com_stmt_send_long_data",  (char*) offsetof(STATUS_VAR, com_stmt_send_long_data), SHOW_LONG_STATUS},
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  {"Com_truncate",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_TRUNCATE]), SHOW_LONG_STATUS},
  {"Com_unlock_tables",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UNLOCK_TABLES]), SHOW_LONG_STATUS},
  {"Com_update",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE]), SHOW_LONG_STATUS},
  {"Com_update_multi",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE_MULTI]), SHOW_LONG_STATUS},
  {"Com_xa_commit",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_COMMIT]),SHOW_LONG_STATUS},
  {"Com_xa_end",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_END]),SHOW_LONG_STATUS},
  {"Com_xa_prepare",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_PREPARE]),SHOW_LONG_STATUS},
  {"Com_xa_recover",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_RECOVER]),SHOW_LONG_STATUS},
  {"Com_xa_rollback",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_ROLLBACK]),SHOW_LONG_STATUS},
  {"Com_xa_start",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_START]),SHOW_LONG_STATUS},
6639
  {"Compression",              (char*) &show_net_compression, SHOW_FUNC},
6640
  {"Connections",              (char*) &thread_id,              SHOW_LONG_NOFLUSH},
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6641
  {"Created_tmp_disk_tables",  (char*) offsetof(STATUS_VAR, created_tmp_disk_tables), SHOW_LONG_STATUS},
6642
  {"Created_tmp_files",	       (char*) &my_tmp_file_created,	SHOW_LONG},
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6643
  {"Created_tmp_tables",       (char*) offsetof(STATUS_VAR, created_tmp_tables), SHOW_LONG_STATUS},
6644
  {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
6645
  {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG_NOFLUSH},
6646
  {"Delayed_writes",           (char*) &delayed_insert_writes,  SHOW_LONG},
6647
  {"Flush_commands",           (char*) &refresh_version,        SHOW_LONG_NOFLUSH},
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  {"Handler_commit",           (char*) offsetof(STATUS_VAR, ha_commit_count), SHOW_LONG_STATUS},
  {"Handler_delete",           (char*) offsetof(STATUS_VAR, ha_delete_count), SHOW_LONG_STATUS},
  {"Handler_discover",         (char*) offsetof(STATUS_VAR, ha_discover_count), SHOW_LONG_STATUS},
  {"Handler_prepare",          (char*) offsetof(STATUS_VAR, ha_prepare_count),  SHOW_LONG_STATUS},
  {"Handler_read_first",       (char*) offsetof(STATUS_VAR, ha_read_first_count), SHOW_LONG_STATUS},
  {"Handler_read_key",         (char*) offsetof(STATUS_VAR, ha_read_key_count), SHOW_LONG_STATUS},
  {"Handler_read_next",        (char*) offsetof(STATUS_VAR, ha_read_next_count), SHOW_LONG_STATUS},
  {"Handler_read_prev",        (char*) offsetof(STATUS_VAR, ha_read_prev_count), SHOW_LONG_STATUS},
  {"Handler_read_rnd",         (char*) offsetof(STATUS_VAR, ha_read_rnd_count), SHOW_LONG_STATUS},
  {"Handler_read_rnd_next",    (char*) offsetof(STATUS_VAR, ha_read_rnd_next_count), SHOW_LONG_STATUS},
  {"Handler_rollback",         (char*) offsetof(STATUS_VAR, ha_rollback_count), SHOW_LONG_STATUS},
  {"Handler_savepoint",        (char*) offsetof(STATUS_VAR, ha_savepoint_count), SHOW_LONG_STATUS},
  {"Handler_savepoint_rollback",(char*) offsetof(STATUS_VAR, ha_savepoint_rollback_count), SHOW_LONG_STATUS},
  {"Handler_update",           (char*) offsetof(STATUS_VAR, ha_update_count), SHOW_LONG_STATUS},
  {"Handler_write",            (char*) offsetof(STATUS_VAR, ha_write_count), SHOW_LONG_STATUS},
6663
#ifdef WITH_INNOBASE_STORAGE_ENGINE
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  {"Innodb",                   (char*) &show_innodb_vars, SHOW_FUNC},
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#endif /* WITH_INNOBASE_STORAGE_ENGINE */
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  {"Key_blocks_not_flushed",   (char*) offsetof(KEY_CACHE, global_blocks_changed), SHOW_KEY_CACHE_LONG},
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  {"Key_blocks_unused",        (char*) offsetof(KEY_CACHE, blocks_unused), SHOW_KEY_CACHE_LONG},
  {"Key_blocks_used",          (char*) offsetof(KEY_CACHE, blocks_used), SHOW_KEY_CACHE_LONG},
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  {"Key_read_requests",        (char*) offsetof(KEY_CACHE, global_cache_r_requests), SHOW_KEY_CACHE_LONGLONG},
  {"Key_reads",                (char*) offsetof(KEY_CACHE, global_cache_read), SHOW_KEY_CACHE_LONGLONG},
  {"Key_write_requests",       (char*) offsetof(KEY_CACHE, global_cache_w_requests), SHOW_KEY_CACHE_LONGLONG},
  {"Key_writes",               (char*) offsetof(KEY_CACHE, global_cache_write), SHOW_KEY_CACHE_LONGLONG},
6673
  {"Last_query_cost",          (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS},
6674
  {"Max_used_connections",     (char*) &max_used_connections,  SHOW_LONG},
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
6676
  {"Ndb",                      (char*) &ndb_status_variables,   SHOW_ARRAY},
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#endif /* WITH_NDBCLUSTER_STORAGE_ENGINE */
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  {"Not_flushed_delayed_rows", (char*) &delayed_rows_in_use,    SHOW_LONG_NOFLUSH},
  {"Open_files",               (char*) &my_file_opened,         SHOW_LONG_NOFLUSH},
  {"Open_streams",             (char*) &my_stream_opened,       SHOW_LONG_NOFLUSH},
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  {"Open_table_definitions",   (char*) &show_table_definitions, SHOW_FUNC},
  {"Open_tables",              (char*) &show_open_tables,       SHOW_FUNC},
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6683
  {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
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6684
#ifdef HAVE_QUERY_CACHE
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  {"Qcache_free_blocks",       (char*) &query_cache.free_memory_blocks, SHOW_LONG_NOFLUSH},
  {"Qcache_free_memory",       (char*) &query_cache.free_memory, SHOW_LONG_NOFLUSH},
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  {"Qcache_hits",              (char*) &query_cache.hits,       SHOW_LONG},
6688
  {"Qcache_inserts",           (char*) &query_cache.inserts,    SHOW_LONG},
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  {"Qcache_lowmem_prunes",     (char*) &query_cache.lowmem_prunes, SHOW_LONG},
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  {"Qcache_not_cached",        (char*) &query_cache.refused,    SHOW_LONG},
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  {"Qcache_queries_in_cache",  (char*) &query_cache.queries_in_cache, SHOW_LONG_NOFLUSH},
  {"Qcache_total_blocks",      (char*) &query_cache.total_blocks, SHOW_LONG_NOFLUSH},
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#endif /*HAVE_QUERY_CACHE*/
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  {"Questions",                (char*) &show_question,            SHOW_FUNC},
#ifdef HAVE_REPLICATION
  {"Rpl_status",               (char*) &show_rpl_status,          SHOW_FUNC},
#endif
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  {"Select_full_join",         (char*) offsetof(STATUS_VAR, select_full_join_count), SHOW_LONG_STATUS},
  {"Select_full_range_join",   (char*) offsetof(STATUS_VAR, select_full_range_join_count), SHOW_LONG_STATUS},
  {"Select_range",             (char*) offsetof(STATUS_VAR, select_range_count), SHOW_LONG_STATUS},
  {"Select_range_check",       (char*) offsetof(STATUS_VAR, select_range_check_count), SHOW_LONG_STATUS},
  {"Select_scan",	       (char*) offsetof(STATUS_VAR, select_scan_count), SHOW_LONG_STATUS},
6703
  {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
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#ifdef HAVE_REPLICATION
  {"Slave_retried_transactions",(char*) &show_slave_retried_trans, SHOW_FUNC},
  {"Slave_running",            (char*) &show_slave_running,     SHOW_FUNC},
#endif
6708
  {"Slow_launch_threads",      (char*) &slow_launch_threads,    SHOW_LONG},
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  {"Slow_queries",             (char*) offsetof(STATUS_VAR, long_query_count), SHOW_LONG_STATUS},
  {"Sort_merge_passes",	       (char*) offsetof(STATUS_VAR, filesort_merge_passes), SHOW_LONG_STATUS},
  {"Sort_range",	       (char*) offsetof(STATUS_VAR, filesort_range_count), SHOW_LONG_STATUS},
  {"Sort_rows",		       (char*) offsetof(STATUS_VAR, filesort_rows), SHOW_LONG_STATUS},
  {"Sort_scan",		       (char*) offsetof(STATUS_VAR, filesort_scan_count), SHOW_LONG_STATUS},
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#ifdef HAVE_OPENSSL
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  {"Ssl_accept_renegotiates",  (char*) &show_ssl_ctx_sess_accept_renegotiate, SHOW_FUNC},
  {"Ssl_accepts",              (char*) &show_ssl_ctx_sess_accept, SHOW_FUNC},
  {"Ssl_callback_cache_hits",  (char*) &show_ssl_ctx_sess_cb_hits, SHOW_FUNC},
  {"Ssl_cipher",               (char*) &show_ssl_get_cipher, SHOW_FUNC},
  {"Ssl_cipher_list",          (char*) &show_ssl_get_cipher_list, SHOW_FUNC},
  {"Ssl_client_connects",      (char*) &show_ssl_ctx_sess_connect, SHOW_FUNC},
  {"Ssl_connect_renegotiates", (char*) &show_ssl_ctx_sess_connect_renegotiate, SHOW_FUNC},
  {"Ssl_ctx_verify_depth",     (char*) &show_ssl_ctx_get_verify_depth, SHOW_FUNC},
  {"Ssl_ctx_verify_mode",      (char*) &show_ssl_ctx_get_verify_mode, SHOW_FUNC},
  {"Ssl_default_timeout",      (char*) &show_ssl_get_default_timeout, SHOW_FUNC},
  {"Ssl_finished_accepts",     (char*) &show_ssl_ctx_sess_accept_good, SHOW_FUNC},
  {"Ssl_finished_connects",    (char*) &show_ssl_ctx_sess_connect_good, SHOW_FUNC},
  {"Ssl_session_cache_hits",   (char*) &show_ssl_ctx_sess_hits, SHOW_FUNC},
  {"Ssl_session_cache_misses", (char*) &show_ssl_ctx_sess_misses, SHOW_FUNC},
  {"Ssl_session_cache_mode",   (char*) &show_ssl_ctx_get_session_cache_mode, SHOW_FUNC},
  {"Ssl_session_cache_overflows", (char*) &show_ssl_ctx_sess_cache_full, SHOW_FUNC},
  {"Ssl_session_cache_size",   (char*) &show_ssl_ctx_sess_get_cache_size, SHOW_FUNC},
  {"Ssl_session_cache_timeouts", (char*) &show_ssl_ctx_sess_timeouts, SHOW_FUNC},
  {"Ssl_sessions_reused",      (char*) &show_ssl_session_reused, SHOW_FUNC},
  {"Ssl_used_session_cache_entries",(char*) &show_ssl_ctx_sess_number, SHOW_FUNC},
  {"Ssl_verify_depth",         (char*) &show_ssl_get_verify_depth, SHOW_FUNC},
  {"Ssl_verify_mode",          (char*) &show_ssl_get_verify_mode, SHOW_FUNC},
  {"Ssl_version",              (char*) &show_ssl_get_version, SHOW_FUNC},
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#endif /* HAVE_OPENSSL */
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  {"Table_locks_immediate",    (char*) &locks_immediate,        SHOW_LONG},
  {"Table_locks_waited",       (char*) &locks_waited,           SHOW_LONG},
6741
#ifdef HAVE_MMAP
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  {"Tc_log_max_pages_used",    (char*) &tc_log_max_pages_used,  SHOW_LONG},
  {"Tc_log_page_size",         (char*) &tc_log_page_size,       SHOW_LONG},
  {"Tc_log_page_waits",        (char*) &tc_log_page_waits,      SHOW_LONG},
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#endif
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  {"Threads_cached",           (char*) &cached_thread_count,    SHOW_LONG_NOFLUSH},
  {"Threads_connected",        (char*) &thread_count,           SHOW_INT},
  {"Threads_created",	       (char*) &thread_created,		SHOW_LONG_NOFLUSH},
  {"Threads_running",          (char*) &thread_running,         SHOW_INT},
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  {"Uptime",                   (char*) &show_starttime,         SHOW_FUNC},
6751
  {NullS, NullS, SHOW_LONG}
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};

static void print_version(void)
{
6756
  set_server_version();
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  printf("%s  Ver %s for %s on %s (%s)\n",my_progname,
	 server_version,SYSTEM_TYPE,MACHINE_TYPE, MYSQL_COMPILATION_COMMENT);
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}

static void usage(void)
{
6763
  if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
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					           MY_CS_PRIMARY,
						   MYF(MY_WME))))
    exit(1);
  if (!default_collation_name)
    default_collation_name= (char*) default_charset_info->name;
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  print_version();
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  puts("\
Copyright (C) 2000 MySQL AB, by Monty and others\n\
This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\
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and you are welcome to modify and redistribute it under the GPL license\n\n\
Starts the MySQL database server\n");
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  printf("Usage: %s [OPTIONS]\n", my_progname);
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  if (!opt_verbose)
    puts("\nFor more help options (several pages), use mysqld --verbose --help\n");
  else
  {
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#ifdef __WIN__
  puts("NT and Win32 specific options:\n\
6783 6784
  --install                     Install the default service (NT)\n\
  --install-manual              Install the default service started manually (NT)\n\
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  --install service_name        Install an optional service (NT)\n\
  --install-manual service_name Install an optional service started manually (NT)\n\
6787
  --remove                      Remove the default service from the service list (NT)\n\
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  --remove service_name         Remove the service_name from the service list (NT)\n\
  --enable-named-pipe           Only to be used for the	default server (NT)\n\
  --standalone                  Dummy option to start as a standalone server (NT)\
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");
6792
  puts("");
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#endif
6794
  print_defaults(MYSQL_CONFIG_NAME,load_default_groups);
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  puts("");
  fix_paths();
  set_ports();
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  my_print_help(my_long_options);
  my_print_variables(my_long_options);

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  puts("\n\
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To see what values a running MySQL server is using, type\n\
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'mysqladmin variables' instead of 'mysqld --verbose --help'.\n");
  }
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}


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/*
  Initialize all MySQL global variables to default values

  SYNOPSIS
    mysql_init_variables()

  NOTES
    The reason to set a lot of global variables to zero is to allow one to
    restart the embedded server with a clean environment
    It's also needed on some exotic platforms where global variables are
    not set to 0 when a program starts.
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    We don't need to set numeric variables refered to in my_long_options
    as these are initialized by my_getopt.
*/
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static void mysql_init_variables(void)
{
  /* Things reset to zero */
  opt_skip_slave_start= opt_reckless_slave = 0;
  mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0;
6830
  opt_log= opt_update_log= opt_slow_log= 0;
6831
  opt_bin_log= 0;
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  opt_disable_networking= opt_skip_show_db=0;
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  opt_logname= opt_update_logname= opt_binlog_index_name= opt_slow_logname= 0;
  opt_tc_log_file= (char *)"tc.log";      // no hostname in tc_log file name !
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  opt_secure_auth= 0;
  opt_bootstrap= opt_myisam_log= 0;
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  mqh_used= 0;
  segfaulted= kill_in_progress= 0;
  cleanup_done= 0;
  defaults_argv= 0;
  server_id_supplied= 0;
  test_flags= select_errors= dropping_tables= ha_open_options=0;
  thread_count= thread_running= kill_cached_threads= wake_thread=0;
  slave_open_temp_tables= 0;
  cached_thread_count= 0;
  opt_endinfo= using_udf_functions= 0;
  opt_using_transactions= using_update_log= 0;
  abort_loop= select_thread_in_use= signal_thread_in_use= 0;
  ready_to_exit= shutdown_in_progress= grant_option= 0;
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  aborted_threads= aborted_connects= 0;
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  delayed_insert_threads= delayed_insert_writes= delayed_rows_in_use= 0;
  delayed_insert_errors= thread_created= 0;
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  specialflag= 0;
6854
  binlog_cache_use=  binlog_cache_disk_use= 0;
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  max_used_connections= slow_launch_threads = 0;
  mysqld_user= mysqld_chroot= opt_init_file= opt_bin_logname = 0;
  errmesg= 0;
6858
  mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS;
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  bzero((gptr) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list));
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  bzero((char *) &global_status_var, sizeof(global_status_var));
  opt_large_pages= 0;
6862
  key_map_full.set_all();
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  /* Character sets */
  system_charset_info= &my_charset_utf8_general_ci;
  files_charset_info= &my_charset_utf8_general_ci;
  national_charset_info= &my_charset_utf8_general_ci;
  table_alias_charset= &my_charset_bin;

6870 6871
  opt_date_time_formats[0]= opt_date_time_formats[1]= opt_date_time_formats[2]= 0;

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  /* Things with default values that are not zero */
  delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
  opt_specialflag= SPECIAL_ENGLISH;
  unix_sock= ip_sock= INVALID_SOCKET;
  mysql_home_ptr= mysql_home;
  pidfile_name_ptr= pidfile_name;
  log_error_file_ptr= log_error_file;
  language_ptr= language;
  mysql_data_home= mysql_real_data_home;
  thd_startup_options= (OPTION_UPDATE_LOG | OPTION_AUTO_IS_NULL |
6882
			OPTION_BIN_LOG | OPTION_QUOTE_SHOW_CREATE |
6883
			OPTION_SQL_NOTES);
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  protocol_version= PROTOCOL_VERSION;
  what_to_log= ~ (1L << (uint) COM_TIME);
  refresh_version= flush_version= 1L;	/* Increments on each reload */
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  query_id= thread_id= 1L;
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  strmov(server_version, MYSQL_SERVER_VERSION);
  myisam_recover_options_str= sql_mode_str= "OFF";
6890
  myisam_stats_method_str= "nulls_unequal";
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  my_bind_addr = htonl(INADDR_ANY);
  threads.empty();
  thread_cache.empty();
6894
  key_caches.empty();
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  if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str,
6896
					       default_key_cache_base.length)))
6897
    exit(1);
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  multi_keycache_init(); /* set key_cache_hash.default_value = dflt_key_cache */
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  /* Set directory paths */
  strmake(language, LANGUAGE, sizeof(language)-1);
  strmake(mysql_real_data_home, get_relative_path(DATADIR),
	  sizeof(mysql_real_data_home)-1);
  mysql_data_home_buff[0]=FN_CURLIB;	// all paths are relative from here
  mysql_data_home_buff[1]=0;

  /* Replication parameters */
  master_user= (char*) "test";
  master_password= master_host= 0;
  master_info_file= (char*) "master.info",
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    relay_log_info_file= (char*) "relay-log.info";
  master_ssl_key= master_ssl_cert= master_ssl_ca= 
    master_ssl_capath= master_ssl_cipher= 0;
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  report_user= report_password = report_host= 0;	/* TO BE DELETED */
  opt_relay_logname= opt_relaylog_index_name= 0;

  /* Variables in libraries */
  charsets_dir= 0;
6919 6920
  default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME;
  default_collation_name= (char*) MYSQL_DEFAULT_COLLATION_NAME;
6921
  sys_charset_system.value= (char*) system_charset_info->csname;
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6923

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  /* Set default values for some option variables */
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  global_system_variables.table_type= &myisam_hton;
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  global_system_variables.tx_isolation= ISO_REPEATABLE_READ;
6927
  global_system_variables.select_limit= (ulonglong) HA_POS_ERROR;
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  max_system_variables.select_limit=    (ulonglong) HA_POS_ERROR;
6929
  global_system_variables.max_join_size= (ulonglong) HA_POS_ERROR;
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  max_system_variables.max_join_size=   (ulonglong) HA_POS_ERROR;
6931
  global_system_variables.old_passwords= 0;
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  global_system_variables.old_alter_table= 0;
6933 6934
  
  /*
6935
    Default behavior for 4.1 and 5.0 is to treat NULL values as unequal
6936 6937 6938
    when collecting index statistics for MyISAM tables.
  */
  global_system_variables.myisam_stats_method= MI_STATS_METHOD_NULLS_NOT_EQUAL;
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  /* Variables that depends on compile options */
#ifndef DBUG_OFF
  default_dbug_option=IF_WIN("d:t:i:O,\\mysqld.trace",
			     "d:t:i:o,/tmp/mysqld.trace");
#endif
  opt_error_log= IF_WIN(1,0);
6946 6947 6948 6949 6950
#ifdef HAVE_ROW_BASED_REPLICATION
  have_row_based_replication= SHOW_OPTION_YES;
#else
  have_row_based_replication= SHOW_OPTION_NO;
#endif
6951
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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  have_ndbcluster=SHOW_OPTION_DISABLED;
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  global_system_variables.ndb_index_stat_enable=TRUE;
  max_system_variables.ndb_index_stat_enable=TRUE;
  global_system_variables.ndb_index_stat_cache_entries=32;
  max_system_variables.ndb_index_stat_cache_entries=~0L;
  global_system_variables.ndb_index_stat_update_freq=20;
  max_system_variables.ndb_index_stat_update_freq=~0L;
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#else
  have_ndbcluster=SHOW_OPTION_NO;
#endif
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#ifdef USE_RAID
  have_raid=SHOW_OPTION_YES;
#else
  have_raid=SHOW_OPTION_NO;
#endif
#ifdef HAVE_OPENSSL
  have_openssl=SHOW_OPTION_YES;
#else
  have_openssl=SHOW_OPTION_NO;
#endif
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#ifdef HAVE_BROKEN_REALPATH
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  have_symlink=SHOW_OPTION_NO;
#else
  have_symlink=SHOW_OPTION_YES;
#endif
#ifdef HAVE_QUERY_CACHE
  have_query_cache=SHOW_OPTION_YES;
#else
  have_query_cache=SHOW_OPTION_NO;
#endif
6982 6983 6984 6985 6986 6987 6988 6989 6990 6991
#ifdef HAVE_SPATIAL
  have_geometry=SHOW_OPTION_YES;
#else
  have_geometry=SHOW_OPTION_NO;
#endif
#ifdef HAVE_RTREE_KEYS
  have_rtree_keys=SHOW_OPTION_YES;
#else
  have_rtree_keys=SHOW_OPTION_NO;
#endif
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#ifdef HAVE_CRYPT
  have_crypt=SHOW_OPTION_YES;
#else
  have_crypt=SHOW_OPTION_NO;
#endif
#ifdef HAVE_COMPRESS
6998
  have_compress= SHOW_OPTION_YES;
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#else
7000
  have_compress= SHOW_OPTION_NO;
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#endif
#ifdef HAVE_LIBWRAP
  libwrapName= NullS;
#endif
#ifdef HAVE_OPENSSL
  des_key_file = 0;
  ssl_acceptor_fd= 0;
#endif
#ifdef HAVE_SMEM
  shared_memory_base_name= default_shared_memory_base_name;
#endif
#if !defined(my_pthread_setprio) && !defined(HAVE_PTHREAD_SETSCHEDPARAM)
  opt_specialflag |= SPECIAL_NO_PRIOR;
#endif

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#if defined(__WIN__) || defined(__NETWARE__)
  /* Allow Win32 and NetWare users to move MySQL anywhere */
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  {
    char prg_dev[LIBLEN];
    my_path(prg_dev,my_progname,"mysql/bin");
    strcat(prg_dev,"/../");			// Remove 'bin' to get base dir
    cleanup_dirname(mysql_home,prg_dev);
  }
#else
  const char *tmpenv;
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  if (!(tmpenv = getenv("MY_BASEDIR_VERSION")))
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    tmpenv = DEFAULT_MYSQL_HOME;
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  (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1);
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#endif
}


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static my_bool
7034 7035
get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
	       char *argument)
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{
7037 7038
  switch(optid) {
  case '#':
7039
#ifndef DBUG_OFF
7040 7041 7042 7043 7044
    DBUG_PUSH(argument ? argument : default_dbug_option);
#endif
    opt_endinfo=1;				/* unireg: memory allocation */
    break;
  case 'a':
7045
    global_system_variables.sql_mode= fix_sql_mode(MODE_ANSI);
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    global_system_variables.tx_isolation= ISO_SERIALIZABLE;
7047 7048 7049 7050
    break;
  case 'b':
    strmake(mysql_home,argument,sizeof(mysql_home)-1);
    break;
7051
  case 'C':
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    default_collation_name= 0;
7053
    break;
7054 7055 7056 7057 7058
  case 'l':
    opt_log=1;
    break;
  case 'h':
    strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
7059 7060
    /* Correct pointer set by my_getopt (for embedded library) */
    mysql_data_home= mysql_real_data_home;
7061
    break;
7062
  case 'u':
7063
    if (!mysqld_user || !strcmp(mysqld_user, argument))
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      mysqld_user= argument;
7065
    else
7066
      sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user);
7067
    break;
7068 7069 7070
  case 'L':
    strmake(language, argument, sizeof(language)-1);
    break;
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#ifdef HAVE_REPLICATION
7072 7073 7074
  case OPT_SLAVE_SKIP_ERRORS:
    init_slave_skip_errors(argument);
    break;
7075
#endif
7076
  case OPT_SAFEMALLOC_MEM_LIMIT:
7077
#if !defined(DBUG_OFF) && defined(SAFEMALLOC)
7078
    sf_malloc_mem_limit = atoi(argument);
7079
#endif
7080
    break;
7081
#include <sslopt-case.h>
7082 7083 7084
  case 'V':
    print_version();
    exit(0);
7085 7086 7087 7088 7089 7090 7091 7092
  case 'W':
    if (!argument)
      global_system_variables.log_warnings++;
    else if (argument == disabled_my_option)
      global_system_variables.log_warnings= 0L;
    else
      global_system_variables.log_warnings= atoi(argument);
    break;
7093 7094
  case 'T':
    test_flags= argument ? (uint) atoi(argument) : 0;
7095
    test_flags&= ~TEST_NO_THREADS;
7096 7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107
    opt_endinfo=1;
    break;
  case (int) OPT_BIG_TABLES:
    thd_startup_options|=OPTION_BIG_TABLES;
    break;
  case (int) OPT_ISAM_LOG:
    opt_myisam_log=1;
    break;
  case (int) OPT_UPDATE_LOG:
    opt_update_log=1;
    break;
  case (int) OPT_BIN_LOG:
7108
    opt_bin_log= test(argument != disabled_my_option);
7109
    break;
7110 7111 7112
  case (int) OPT_ERROR_LOG_FILE:
    opt_error_log= 1;
    break;
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#ifdef HAVE_REPLICATION
7114
  case (int) OPT_INIT_RPL_ROLE:
7115 7116 7117
  {
    int role;
    if ((role=find_type(argument, &rpl_role_typelib, 2)) <= 0)
7118
    {
7119 7120
      fprintf(stderr, "Unknown replication role: %s\n", argument);
      exit(1);
7121
    }
7122 7123 7124
    rpl_status = (role == 1) ?  RPL_AUTH_MASTER : RPL_IDLE_SLAVE;
    break;
  }
7125
  case (int)OPT_REPLICATE_IGNORE_DB:
7126
  {
7127
    rpl_filter->add_ignore_db(argument);
7128 7129 7130 7131
    break;
  }
  case (int)OPT_REPLICATE_DO_DB:
  {
7132
    rpl_filter->add_do_db(argument);
7133 7134 7135 7136 7137
    break;
  }
  case (int)OPT_REPLICATE_REWRITE_DB:
  {
    char* key = argument,*p, *val;
7138

7139
    if (!(p= strstr(argument, "->")))
7140
    {
7141 7142 7143
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - missing '->'!\n");
      exit(1);
7144
    }
7145
    val= p--;
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    while (my_isspace(mysqld_charset, *p) && p > argument)
7147 7148
      *p-- = 0;
    if (p == argument)
7149
    {
7150 7151 7152
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - empty FROM db!\n");
      exit(1);
7153
    }
7154 7155
    *val= 0;
    val+= 2;
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    while (*val && my_isspace(mysqld_charset, *val))
7157 7158
      *val++;
    if (!*val)
7159
    {
7160 7161 7162
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - empty TO db!\n");
      exit(1);
7163 7164
    }

7165
    rpl_filter->add_db_rewrite(key, val);
7166 7167 7168
    break;
  }

7169
  case (int)OPT_BINLOG_IGNORE_DB:
7170
  {
7171
    binlog_filter->add_ignore_db(argument);
7172 7173
    break;
  }
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  case OPT_BINLOG_FORMAT:
  {
    int id;
    if ((id= find_type(argument, &binlog_format_typelib, 2)) <= 0)
    {
#ifdef HAVE_ROW_BASED_REPLICATION
      fprintf(stderr, 
	      "Unknown binary log format: '%s' "
	      "(should be '%s' or '%s')\n", 
	      argument,
              binlog_format_names[BF_STMT],
              binlog_format_names[BF_ROW]);
#else
      fprintf(stderr, 
	      "Unknown binary log format: '%s' (only legal value is '%s')\n", 
	      argument, binlog_format_names[BF_STMT]);
#endif
      exit(1);
    }
    opt_binlog_format_id= (enum binlog_format)(id-1);
    break;
  }
7196
  case (int)OPT_BINLOG_DO_DB:
7197
  {
7198
    binlog_filter->add_do_db(argument);
7199 7200
    break;
  }
7201
  case (int)OPT_REPLICATE_DO_TABLE:
7202
  {
7203
    if (rpl_filter->add_do_table(argument))
7204
    {
7205 7206
      fprintf(stderr, "Could not add do table rule '%s'!\n", argument);
      exit(1);
7207
    }
7208 7209
    break;
  }
7210
  case (int)OPT_REPLICATE_WILD_DO_TABLE:
7211
  {
7212
    if (rpl_filter->add_wild_do_table(argument))
7213
    {
7214 7215
      fprintf(stderr, "Could not add do table rule '%s'!\n", argument);
      exit(1);
7216
    }
7217 7218
    break;
  }
7219
  case (int)OPT_REPLICATE_WILD_IGNORE_TABLE:
7220
  {
7221
    if (rpl_filter->add_wild_ignore_table(argument))
7222
    {
7223 7224
      fprintf(stderr, "Could not add ignore table rule '%s'!\n", argument);
      exit(1);
7225
    }
7226 7227
    break;
  }
7228
  case (int)OPT_REPLICATE_IGNORE_TABLE:
7229
  {
7230
    if (rpl_filter->add_ignore_table(argument))
7231
    {
7232 7233
      fprintf(stderr, "Could not add ignore table rule '%s'!\n", argument);
      exit(1);
7234
    }
7235 7236
    break;
  }
unknown's avatar
SCRUM  
unknown committed
7237
#endif /* HAVE_REPLICATION */
7238 7239 7240
  case (int) OPT_SLOW_QUERY_LOG:
    opt_slow_log=1;
    break;
7241 7242
  case (int) OPT_SKIP_NEW:
    opt_specialflag|= SPECIAL_NO_NEW_FUNC;
7243
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
7244 7245
    myisam_concurrent_insert=0;
    myisam_recover_options= HA_RECOVER_NONE;
unknown's avatar
Merge  
unknown committed
7246
    sp_automatic_privileges=0;
7247
    my_use_symdir=0;
7248
    ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE);
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7249
#ifdef HAVE_QUERY_CACHE
7250 7251 7252 7253 7254
    query_cache_size=0;
#endif
    break;
  case (int) OPT_SAFE:
    opt_specialflag|= SPECIAL_SAFE_MODE;
7255
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
7256 7257
    myisam_recover_options= HA_RECOVER_DEFAULT;
    ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE);
7258 7259 7260 7261 7262
    break;
  case (int) OPT_SKIP_PRIOR:
    opt_specialflag|= SPECIAL_NO_PRIOR;
    break;
  case (int) OPT_SKIP_LOCK:
7263
    opt_external_locking=0;
7264 7265 7266 7267 7268 7269 7270 7271
    break;
  case (int) OPT_SKIP_HOST_CACHE:
    opt_specialflag|= SPECIAL_NO_HOST_CACHE;
    break;
  case (int) OPT_SKIP_RESOLVE:
    opt_specialflag|=SPECIAL_NO_RESOLVE;
    break;
  case (int) OPT_SKIP_NETWORKING:
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7272 7273 7274
#if defined(__NETWARE__)
    sql_perror("Can't start server: skip-networking option is currently not supported on NetWare");
    exit(1);
7275
#endif
7276
    opt_disable_networking=1;
7277
    mysqld_port=0;
7278 7279 7280 7281 7282
    break;
  case (int) OPT_SKIP_SHOW_DB:
    opt_skip_show_db=1;
    opt_specialflag|=SPECIAL_SKIP_SHOW_DB;
    break;
7283
#ifdef ONE_THREAD
7284 7285
  case (int) OPT_ONE_THREAD:
    test_flags |= TEST_NO_THREADS;
7286
#endif
7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297
    break;
  case (int) OPT_WANT_CORE:
    test_flags |= TEST_CORE_ON_SIGNAL;
    break;
  case (int) OPT_SKIP_STACK_TRACE:
    test_flags|=TEST_NO_STACKTRACE;
    break;
  case (int) OPT_SKIP_SYMLINKS:
    my_use_symdir=0;
    break;
  case (int) OPT_BIND_ADDRESS:
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7298
    if ((my_bind_addr= (ulong) inet_addr(argument)) == INADDR_NONE)
7299 7300
    {
      struct hostent *ent;
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7301
      if (argument[0])
7302
	ent=gethostbyname(argument);
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7303 7304
      else
      {
7305 7306
	char myhostname[255];
	if (gethostname(myhostname,sizeof(myhostname)) < 0)
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7307
	{
7308
	  sql_perror("Can't start server: cannot get my own hostname!");
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7309 7310
	  exit(1);
	}
7311
	ent=gethostbyname(myhostname);
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7312
      }
7313 7314 7315 7316 7317 7318 7319 7320 7321 7322 7323
      if (!ent)
      {
	sql_perror("Can't start server: cannot resolve hostname!");
	exit(1);
      }
      my_bind_addr = (ulong) ((in_addr*)ent->h_addr_list[0])->s_addr;
    }
    break;
  case (int) OPT_PID_FILE:
    strmake(pidfile_name, argument, sizeof(pidfile_name)-1);
    break;
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7324
#ifdef __WIN__
7325 7326
  case (int) OPT_STANDALONE:		/* Dummy option for NT */
    break;
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7327
#endif
7328 7329 7330 7331
  case OPT_CONSOLE:
    if (opt_console)
      opt_error_log= 0;			// Force logs to stdout
    break;
7332 7333 7334 7335 7336 7337
  case (int) OPT_FLUSH:
    myisam_flush=1;
    flush_time=0;			// No auto flush
    break;
  case OPT_LOW_PRIORITY_UPDATES:
    thr_upgraded_concurrent_insert_lock= TL_WRITE_LOW_PRIORITY;
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7338
    global_system_variables.low_priority_updates=1;
7339 7340 7341 7342
    break;
  case OPT_BOOTSTRAP:
    opt_noacl=opt_bootstrap=1;
    break;
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7343
  case OPT_STORAGE_ENGINE:
7344
  {
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7345 7346 7347
    LEX_STRING name= { argument, strlen(argument) };
    if ((global_system_variables.table_type=
                        ha_resolve_by_name(current_thd, &name)) == NULL)
unknown's avatar
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7348
    {
7349
      fprintf(stderr,"Unknown/unsupported table type: %s\n",argument);
7350
      exit(1);
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7351
    }
7352 7353
    break;
  }
7354 7355 7356
  case OPT_SERVER_ID:
    server_id_supplied = 1;
    break;
7357 7358 7359 7360
  case OPT_DELAY_KEY_WRITE_ALL:
    if (argument != disabled_my_option)
      argument= (char*) "ALL";
    /* Fall through */
7361
  case OPT_DELAY_KEY_WRITE:
7362 7363 7364 7365 7366 7367 7368 7369 7370 7371 7372 7373 7374 7375
    if (argument == disabled_my_option)
      delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
    else if (! argument)
      delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
    else
    {
      int type;
      if ((type=find_type(argument, &delay_key_write_typelib, 2)) <= 0)
      {
	fprintf(stderr,"Unknown delay_key_write type: %s\n",argument);
	exit(1);
      }
      delay_key_write_options= (uint) type-1;
    }
7376 7377 7378 7379 7380 7381
    break;
  case OPT_CHARSETS_DIR:
    strmake(mysql_charsets_dir, argument, sizeof(mysql_charsets_dir)-1);
    charsets_dir = mysql_charsets_dir;
    break;
  case OPT_TX_ISOLATION:
7382 7383 7384
  {
    int type;
    if ((type=find_type(argument, &tx_isolation_typelib, 2)) <= 0)
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7385
    {
7386 7387
      fprintf(stderr,"Unknown transaction isolation type: %s\n",argument);
      exit(1);
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7388
    }
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7389
    global_system_variables.tx_isolation= (type-1);
7390 7391
    break;
  }
7392
#ifdef WITH_BERKELEY_STORAGE_ENGINE
7393
  case OPT_BDB_NOSYNC:
7394 7395 7396 7397 7398
    /* Deprecated option */
    opt_sync_bdb_logs= 0;
    /* Fall through */
  case OPT_BDB_SYNC:
    if (!opt_sync_bdb_logs)
7399
      berkeley_env_flags|= bdb_DB_TXN_NOSYNC;
7400
    else
7401
      berkeley_env_flags&= ~bdb_DB_TXN_NOSYNC;
7402
    break;
7403 7404 7405 7406 7407 7408
  case OPT_BDB_LOG_DIRECT:
    berkeley_env_flags|= bdb_DB_DIRECT_DB;
    break;
  case OPT_BDB_DATA_DIRECT:
    berkeley_env_flags|= bdb_DB_DIRECT_LOG;
    break;
7409
  case OPT_BDB_NO_RECOVER:
7410
    berkeley_init_flags&= ~(bdb_DB_RECOVER);
7411 7412
    break;
  case OPT_BDB_LOCK:
7413 7414 7415 7416 7417
  {
    int type;
    if ((type=find_type(argument, &berkeley_lock_typelib, 2)) > 0)
      berkeley_lock_type=berkeley_lock_types[type-1];
    else
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7418
    {
7419
      int err;
7420 7421
      char *end;
      uint length= strlen(argument);
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7422
      long value= my_strntol(&my_charset_latin1, argument, length, 10, &end, &err);
unknown's avatar
Merge  
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7423
      if (end == argument+length)
7424
	berkeley_lock_scan_time= value;
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unknown committed
7425 7426
      else
      {
7427 7428
	fprintf(stderr,"Unknown lock type: %s\n",argument);
	exit(1);
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7429 7430
      }
    }
7431 7432
    break;
  }
7433
  case OPT_BDB_SHARED:
7434
    berkeley_init_flags&= ~(bdb_DB_PRIVATE);
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7435
    berkeley_shared_data= 1;
7436
    break;
7437
#endif /* WITH_BERKELEY_STORAGE_ENGINE */
7438
  case OPT_BDB:
7439
#ifdef WITH_BERKELEY_STORAGE_ENGINE
7440
    if (opt_bdb)
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7441
      have_berkeley_db= SHOW_OPTION_YES;
7442
    else
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7443
      have_berkeley_db= SHOW_OPTION_DISABLED;
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7444 7445 7446
#endif
    break;
  case OPT_NDBCLUSTER:
7447
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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7448
    if (opt_ndbcluster)
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7449
      have_ndbcluster= SHOW_OPTION_YES;
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7450
    else
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7451
      have_ndbcluster= SHOW_OPTION_DISABLED;
7452 7453
#endif
    break;
7454
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
unknown's avatar
Merge  
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7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469 7470 7471 7472 7473 7474 7475 7476 7477
  case OPT_NDB_MGMD:
  case OPT_NDB_NODEID:
  {
    int len= my_snprintf(opt_ndb_constrbuf+opt_ndb_constrbuf_len,
			 sizeof(opt_ndb_constrbuf)-opt_ndb_constrbuf_len,
			 "%s%s%s",opt_ndb_constrbuf_len > 0 ? ",":"",
			 optid == OPT_NDB_NODEID ? "nodeid=" : "",
			 argument);
    opt_ndb_constrbuf_len+= len;
  }
  /* fall through to add the connectstring to the end
   * and set opt_ndbcluster_connectstring
   */
  case OPT_NDB_CONNECTSTRING:
    if (opt_ndb_connectstring && opt_ndb_connectstring[0])
      my_snprintf(opt_ndb_constrbuf+opt_ndb_constrbuf_len,
		  sizeof(opt_ndb_constrbuf)-opt_ndb_constrbuf_len,
		  "%s%s", opt_ndb_constrbuf_len > 0 ? ",":"",
		  opt_ndb_connectstring);
    else
      opt_ndb_constrbuf[opt_ndb_constrbuf_len]= 0;
    opt_ndbcluster_connectstring= opt_ndb_constrbuf;
    break;
7478 7479 7480 7481 7482 7483 7484 7485 7486 7487 7488 7489 7490 7491
  case OPT_NDB_DISTRIBUTION:
    int id;
    if ((id= find_type(argument, &ndb_distribution_typelib, 2)) <= 0)
    {
      fprintf(stderr, 
	      "Unknown ndb distribution type: '%s' "
	      "(should be '%s' or '%s')\n", 
	      argument,
              ndb_distribution_names[ND_KEYHASH],
              ndb_distribution_names[ND_LINHASH]);
      exit(1);
    }
    opt_ndb_distribution_id= (enum ndb_distribution)(id-1);
    break;
unknown's avatar
Merge  
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7492
#endif
7493
  case OPT_INNODB:
7494
#ifdef WITH_INNOBASE_STORAGE_ENGINE
7495
    if (opt_innodb)
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7496
      have_innodb= SHOW_OPTION_YES;
7497
    else
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7498
      have_innodb= SHOW_OPTION_DISABLED;
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7499
#endif
7500 7501
    break;
  case OPT_INNODB_DATA_FILE_PATH:
7502
#ifdef WITH_INNOBASE_STORAGE_ENGINE
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7503
    innobase_data_file_path= argument;
7504
#endif
7505
    break;
7506
#ifdef WITH_INNOBASE_STORAGE_ENGINE
7507 7508 7509
  case OPT_INNODB_LOG_ARCHIVE:
    innobase_log_archive= argument ? test(atoi(argument)) : 1;
    break;
7510
#endif /* WITH_INNOBASE_STORAGE_ENGINE */
7511
  case OPT_MYISAM_RECOVER:
7512 7513
  {
    if (!argument || !argument[0])
7514
    {
7515 7516
      myisam_recover_options=    HA_RECOVER_DEFAULT;
      myisam_recover_options_str= myisam_recover_typelib.type_names[0];
7517
    }
7518
    else
7519
    {
7520 7521 7522
      myisam_recover_options_str=argument;
      if ((myisam_recover_options=
	   find_bit_type(argument, &myisam_recover_typelib)) == ~(ulong) 0)
7523
      {
7524
	fprintf(stderr, "Unknown option to myisam-recover: %s\n",argument);
7525 7526 7527
	exit(1);
      }
    }
7528 7529 7530
    ha_open_options|=HA_OPEN_ABORT_IF_CRASHED;
    break;
  }
7531 7532 7533 7534 7535 7536 7537
  case OPT_CONCURRENT_INSERT:
    /* The following code is mainly here to emulate old behavior */
    if (!argument)                      /* --concurrent-insert */
      myisam_concurrent_insert= 1;
    else if (argument == disabled_my_option)
      myisam_concurrent_insert= 0;      /* --skip-concurrent-insert */
    break;
unknown's avatar
Merge  
unknown committed
7538 7539 7540 7541 7542 7543 7544 7545
  case OPT_TC_HEURISTIC_RECOVER:
  {
    if ((tc_heuristic_recover=find_type(argument,
                                        &tc_heuristic_recover_typelib, 2)) <=0)
    {
      fprintf(stderr, "Unknown option to tc-heuristic-recover: %s\n",argument);
      exit(1);
    }
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7546
  }
7547 7548
  case OPT_MYISAM_STATS_METHOD:
  {
7549
    ulong method_conv;
7550
    int method;
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7551 7552
    LINT_INIT(method_conv);

7553 7554 7555 7556 7557 7558
    myisam_stats_method_str= argument;
    if ((method=find_type(argument, &myisam_stats_method_typelib, 2)) <= 0)
    {
      fprintf(stderr, "Invalid value of myisam_stats_method: %s.\n", argument);
      exit(1);
    }
7559 7560 7561 7562 7563 7564 7565 7566 7567 7568 7569 7570
    switch (method-1) {
    case 0: 
      method_conv= MI_STATS_METHOD_NULLS_EQUAL;
      break;
    case 1:
      method_conv= MI_STATS_METHOD_NULLS_NOT_EQUAL;
      break;
    case 2:
      method_conv= MI_STATS_METHOD_IGNORE_NULLS;
      break;
    }
    global_system_variables.myisam_stats_method= method_conv;
unknown's avatar
Merge  
unknown committed
7571 7572
    break;
  }
7573 7574
  case OPT_SQL_MODE:
  {
7575 7576 7577
    sql_mode_str= argument;
    if ((global_system_variables.sql_mode=
         find_bit_type(argument, &sql_mode_typelib)) == ~(ulong) 0)
7578 7579 7580 7581
    {
      fprintf(stderr, "Unknown option to sql-mode: %s\n", argument);
      exit(1);
    }
7582 7583
    global_system_variables.sql_mode= fix_sql_mode(global_system_variables.
						   sql_mode);
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7584
    break;
7585
  }
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7586
  case OPT_FT_BOOLEAN_SYNTAX:
7587
    if (ft_boolean_check_syntax_string((byte*) argument))
unknown's avatar
unknown committed
7588 7589 7590 7591
    {
      fprintf(stderr, "Invalid ft-boolean-syntax string: %s\n", argument);
      exit(1);
    }
7592
    strmake(ft_boolean_syntax, argument, sizeof(ft_boolean_syntax)-1);
7593 7594
    break;
  case OPT_SKIP_SAFEMALLOC:
7595
#ifdef SAFEMALLOC
7596
    sf_malloc_quick=1;
7597
#endif
7598
    break;
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7599 7600
  case OPT_LOWER_CASE_TABLE_NAMES:
    lower_case_table_names= argument ? atoi(argument) : 1;
7601
    lower_case_table_names_used= 1;
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7602
    break;
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7603
  }
7604 7605 7606
  return 0;
}
	/* Initiates DEBUG - but no debugging here ! */
7607

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7608
static gptr *
7609
mysql_getopt_value(const char *keyname, uint key_length,
7610 7611
		   const struct my_option *option)
{
7612 7613
  switch (option->id) {
  case OPT_KEY_BUFFER_SIZE:
unknown's avatar
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7614
  case OPT_KEY_CACHE_BLOCK_SIZE:
7615 7616
  case OPT_KEY_CACHE_DIVISION_LIMIT:
  case OPT_KEY_CACHE_AGE_THRESHOLD:
7617
  {
unknown's avatar
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7618
    KEY_CACHE *key_cache;
7619 7620
    if (!(key_cache= get_or_create_key_cache(keyname, key_length)))
      exit(1);
7621 7622
    switch (option->id) {
    case OPT_KEY_BUFFER_SIZE:
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7623
      return (gptr*) &key_cache->param_buff_size;
7624
    case OPT_KEY_CACHE_BLOCK_SIZE:
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7625
      return (gptr*) &key_cache->param_block_size;
7626
    case OPT_KEY_CACHE_DIVISION_LIMIT:
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      return (gptr*) &key_cache->param_division_limit;
7628
    case OPT_KEY_CACHE_AGE_THRESHOLD:
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7629
      return (gptr*) &key_cache->param_age_threshold;
7630
    }
7631 7632
  }
  }
7633
 return option->value;
7634 7635
}

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7636

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7637
static void option_error_reporter(enum loglevel level, const char *format, ...)
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7638
{
7639
  va_list args;
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7640 7641 7642
  va_start(args, format);
  vprint_msg_to_log(level, format, args);
  va_end(args);
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7643
}
7644

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7645

7646 7647 7648 7649
static void get_options(int argc,char **argv)
{
  int ho_error;

7650
  my_getopt_register_get_addr(mysql_getopt_value);
7651
  strmake(def_ft_boolean_syntax, ft_boolean_syntax,
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7652
	  sizeof(ft_boolean_syntax)-1);
7653
  my_getopt_error_reporter= option_error_reporter;
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7654 7655
  if ((ho_error= handle_options(&argc, &argv, my_long_options,
                                get_one_option)))
7656
    exit(ho_error);
7657

7658
#ifndef WITH_NDBCLUSTER_STORAGE_ENGINE
7659 7660 7661
  if (opt_ndbcluster)
    sql_print_warning("this binary does not contain NDBCLUSTER storage engine");
#endif
7662
#ifndef WITH_INNOBASE_STORAGE_ENGINE
7663 7664 7665
  if (opt_innodb)
    sql_print_warning("this binary does not contain INNODB storage engine");
#endif
7666
#ifndef WITH_ISAM_STORAGE_ENGINE
7667 7668 7669
  if (opt_isam)
    sql_print_warning("this binary does not contain ISAM storage engine");
#endif
7670
#ifndef WITH_BERKELEY_STORAGE_ENGINE
7671 7672 7673
  if (opt_bdb)
    sql_print_warning("this binary does not contain BDB storage engine");
#endif
7674 7675 7676
  if ((opt_log_slow_admin_statements || opt_log_queries_not_using_indexes) &&
      !opt_slow_log)
    sql_print_warning("options --log-slow-admin-statements and --log-queries-not-using-indexes have no effect if --log-slow-queries is not set");
7677

7678 7679
  if (argc > 0)
  {
7680
    fprintf(stderr, "%s: Too many arguments (first extra is '%s').\nUse --help to get a list of available options\n", my_progname, *argv);
unknown's avatar
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7681 7682
    /* FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code? */
    exit(1);
7683
  }
7684

7685
  if (opt_help)
7686 7687 7688 7689
  {
    usage();
    exit(0);
  }
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7690
#if defined(HAVE_BROKEN_REALPATH)
7691 7692 7693 7694 7695 7696 7697 7698 7699 7700
  my_use_symdir=0;
  my_disable_symlinks=1;
  have_symlink=SHOW_OPTION_NO;
#else
  if (!my_use_symdir)
  {
    my_disable_symlinks=1;
    have_symlink=SHOW_OPTION_DISABLED;
  }
#endif
7701 7702 7703 7704 7705 7706
  if (opt_debugging)
  {
    /* Allow break with SIGINT, no core or stack trace */
    test_flags|= TEST_SIGINT | TEST_NO_STACKTRACE;
    test_flags&= ~TEST_CORE_ON_SIGNAL;
  }
7707 7708 7709
  /* Set global MyISAM variables from delay_key_write_options */
  fix_delay_key_write((THD*) 0, OPT_GLOBAL);

7710
#ifndef EMBEDDED_LIBRARY
7711 7712
  if (mysqld_chroot)
    set_root(mysqld_chroot);
7713 7714 7715
#else
  max_allowed_packet= global_system_variables.max_allowed_packet;
  net_buffer_length= global_system_variables.net_buffer_length;
7716
#endif
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7717
  fix_paths();
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7718

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7719 7720 7721 7722
  /*
    Set some global variables from the global_system_variables
    In most cases the global variables will not be used
  */
7723
  my_disable_locking= myisam_single_user= test(opt_external_locking == 0);
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7724
  my_default_record_cache_size=global_system_variables.read_buff_size;
7725
  myisam_max_temp_length=
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    (my_off_t) global_system_variables.myisam_max_sort_file_size;
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  /* Set global variables based on startup options */
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  myisam_block_size=(uint) 1 << my_bit_log2(opt_myisam_block_size);
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  if (opt_short_log_format)
    opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;
  if (opt_log_queries_not_using_indexes)
    opt_specialflag|= SPECIAL_LOG_QUERIES_NOT_USING_INDEXES;
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  if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE,
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				  &global_system_variables.date_format) ||
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      init_global_datetime_format(MYSQL_TIMESTAMP_TIME,
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				  &global_system_variables.time_format) ||
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      init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME,
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				  &global_system_variables.datetime_format))
    exit(1);
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}


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/*
  Create version name for running mysqld version
  We automaticly add suffixes -debug, -embedded and -log to the version
  name to make the version more descriptive.
  (MYSQL_SERVER_SUFFIX is set by the compilation environment)
*/

static void set_server_version(void)
{
  char *end= strxmov(server_version, MYSQL_SERVER_VERSION,
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                     MYSQL_SERVER_SUFFIX_STR, NullS);
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#ifdef EMBEDDED_LIBRARY
  end= strmov(end, "-embedded");
#endif
#ifndef DBUG_OFF
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  if (!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug"))
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    end= strmov(end, "-debug");
#endif
  if (opt_log || opt_update_log || opt_slow_log || opt_bin_log)
    strmov(end, "-log");                        // This may slow down system
}


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static char *get_relative_path(const char *path)
{
  if (test_if_hard_path(path) &&
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      is_prefix(path,DEFAULT_MYSQL_HOME) &&
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      strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR))
  {
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    path+=(uint) strlen(DEFAULT_MYSQL_HOME);
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    while (*path == FN_LIBCHAR)
      path++;
  }
  return (char*) path;
}


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/*
  Fix filename and replace extension where 'dir' is relative to
  mysql_real_data_home.
  Return 1 if len(path) > FN_REFLEN
*/

bool
fn_format_relative_to_data_home(my_string to, const char *name,
				const char *dir, const char *extension)
{
  char tmp_path[FN_REFLEN];
  if (!test_if_hard_path(dir))
  {
    strxnmov(tmp_path,sizeof(tmp_path)-1, mysql_real_data_home,
	     dir, NullS);
    dir=tmp_path;
  }
  return !fn_format(to, name, dir, extension,
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		    MY_APPEND_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH);
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}


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static void fix_paths(void)
{
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  char buff[FN_REFLEN],*pos;
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  convert_dirname(mysql_home,mysql_home,NullS);
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  /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */
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  my_realpath(mysql_home,mysql_home,MYF(0));
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  /* Ensure that mysql_home ends in FN_LIBCHAR */
  pos=strend(mysql_home);
  if (pos[-1] != FN_LIBCHAR)
  {
    pos[0]= FN_LIBCHAR;
    pos[1]= 0;
  }
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  convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS);
  convert_dirname(language,language,NullS);
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  (void) my_load_path(mysql_home,mysql_home,""); // Resolve current dir
  (void) my_load_path(mysql_real_data_home,mysql_real_data_home,mysql_home);
  (void) my_load_path(pidfile_name,pidfile_name,mysql_real_data_home);
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  (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr :
                                      get_relative_path(LIBDIR), mysql_home);
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  opt_plugin_dir_ptr= opt_plugin_dir;
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  char *sharedir=get_relative_path(SHAREDIR);
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  if (test_if_hard_path(sharedir))
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    strmake(buff,sharedir,sizeof(buff)-1);		/* purecov: tested */
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  else
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    strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS);
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  convert_dirname(buff,buff,NullS);
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  (void) my_load_path(language,language,buff);

  /* If --character-sets-dir isn't given, use shared library dir */
  if (charsets_dir != mysql_charsets_dir)
  {
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    strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff,
	     CHARSET_DIR, NullS);
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  }
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  (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff);
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  convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS);
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  charsets_dir=mysql_charsets_dir;
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  if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir))
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    exit(1);
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#ifdef HAVE_REPLICATION
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  if (!slave_load_tmpdir)
  {
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    if (!(slave_load_tmpdir = (char*) my_strdup(mysql_tmpdir, MYF(MY_FAE))))
      exit(1);
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  }
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#endif /* HAVE_REPLICATION */
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}


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/*
  Return a bitfield from a string of substrings separated by ','
  returns ~(ulong) 0 on error.
*/
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static ulong find_bit_type(const char *x, TYPELIB *bit_lib)
{
  bool found_end;
  int  found_count;
  const char *end,*i,*j;
  const char **array, *pos;
  ulong found,found_int,bit;
  DBUG_ENTER("find_bit_type");
  DBUG_PRINT("enter",("x: '%s'",x));

  found=0;
  found_end= 0;
  pos=(my_string) x;
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  while (*pos == ' ') pos++;
  found_end= *pos == 0;
  while (!found_end)
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  {
    if (!*(end=strcend(pos,',')))		/* Let end point at fieldend */
    {
      while (end > pos && end[-1] == ' ')
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	end--;					/* Skip end-space */
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      found_end=1;
    }
    found_int=0; found_count=0;
    for (array=bit_lib->type_names, bit=1 ; (i= *array++) ; bit<<=1)
    {
      j=pos;
      while (j != end)
      {
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	if (my_toupper(mysqld_charset,*i++) !=
            my_toupper(mysqld_charset,*j++))
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	  goto skip;
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      }
      found_int=bit;
      if (! *i)
      {
	found_count=1;
	break;
      }
      else if (j != pos)			// Half field found
      {
	found_count++;				// Could be one of two values
      }
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skip: ;
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    }
    if (found_count != 1)
      DBUG_RETURN(~(ulong) 0);				// No unique value
    found|=found_int;
    pos=end+1;
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  }
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  DBUG_PRINT("exit",("bit-field: %ld",(ulong) found));
  DBUG_RETURN(found);
} /* find_bit_type */


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/*
  Check if file system used for databases is case insensitive

  SYNOPSIS
    test_if_case_sensitive()
    dir_name			Directory to test

  RETURN
    -1  Don't know (Test failed)
    0   File system is case sensitive
    1   File system is case insensitive
*/

static int test_if_case_insensitive(const char *dir_name)
{
  int result= 0;
  File file;
  char buff[FN_REFLEN], buff2[FN_REFLEN];
  MY_STAT stat_info;
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  DBUG_ENTER("test_if_case_insensitive");
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  fn_format(buff, glob_hostname, dir_name, ".lower-test",
	    MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR);
  fn_format(buff2, glob_hostname, dir_name, ".LOWER-TEST",
	    MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR);
  (void) my_delete(buff2, MYF(0));
  if ((file= my_create(buff, 0666, O_RDWR, MYF(0))) < 0)
  {
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    sql_print_warning("Can't create test file %s", buff);
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    DBUG_RETURN(-1);
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  }
  my_close(file, MYF(0));
  if (my_stat(buff2, &stat_info, MYF(0)))
    result= 1;					// Can access file
  (void) my_delete(buff, MYF(MY_WME));
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  DBUG_PRINT("exit", ("result: %d", result));
  DBUG_RETURN(result);
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}


/* Create file to store pid number */

static void create_pid_file()
{
  File file;
  if ((file = my_create(pidfile_name,0664,
			O_WRONLY | O_TRUNC, MYF(MY_WME))) >= 0)
  {
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    char buff[21], *end;
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    end= int10_to_str((long) getpid(), buff, 10);
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    *end++= '\n';
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    if (!my_write(file, (byte*) buff, (uint) (end-buff), MYF(MY_WME | MY_NABP)))
    {
      (void) my_close(file, MYF(0));
      return;
    }
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    (void) my_close(file, MYF(0));
  }
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  sql_perror("Can't start server: can't create PID file");
  exit(1);  
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}


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/*****************************************************************************
  Instantiate have_xyx for missing storage engines
*****************************************************************************/
#undef have_isam
#undef have_berkeley_db
#undef have_innodb
#undef have_ndbcluster
#undef have_example_db
#undef have_archive_db
#undef have_csv_db
#undef have_federated_db
#undef have_partition_db
#undef have_blackhole_db

SHOW_COMP_OPTION have_berkeley_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_innodb= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_isam= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_ndbcluster= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_example_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_archive_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_csv_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_federated_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_partition_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_blackhole_db= SHOW_OPTION_NO;

#ifndef WITH_BERKELEY_STORAGE_ENGINE
bool berkeley_shared_data;
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ulong berkeley_max_lock, berkeley_log_buffer_size;
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ulonglong berkeley_cache_size;
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ulong berkeley_region_size, berkeley_cache_parts;
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char *berkeley_home, *berkeley_tmpdir, *berkeley_logdir;
#endif

#ifndef WITH_INNOBASE_STORAGE_ENGINE
uint innobase_flush_log_at_trx_commit;
ulong innobase_fast_shutdown;
long innobase_mirrored_log_groups, innobase_log_files_in_group;
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longlong innobase_log_file_size;
long innobase_log_buffer_size;
longlong innobase_buffer_pool_size;
long innobase_additional_mem_pool_size;
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long innobase_buffer_pool_awe_mem_mb;
long innobase_file_io_threads, innobase_lock_wait_timeout;
long innobase_force_recovery;
long innobase_open_files;
char *innobase_data_home_dir, *innobase_data_file_path;
char *innobase_log_group_home_dir, *innobase_log_arch_dir;
char *innobase_unix_file_flush_method;
my_bool innobase_log_archive,
        innobase_use_doublewrite,
        innobase_use_checksums,
        innobase_file_per_table,
        innobase_locks_unsafe_for_binlog;

ulong srv_max_buf_pool_modified_pct;
ulong srv_max_purge_lag;
ulong srv_auto_extend_increment;
ulong srv_n_spin_wait_rounds;
ulong srv_n_free_tickets_to_enter;
ulong srv_thread_sleep_delay;
ulong srv_thread_concurrency;
ulong srv_commit_concurrency;
#endif

#ifndef WITH_NDBCLUSTER_STORAGE_ENGINE
ulong ndb_cache_check_time;
#endif

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/*****************************************************************************
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  Instantiate templates
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*****************************************************************************/

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#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
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/* Used templates */
template class I_List<THD>;
template class I_List_iterator<THD>;
template class I_List<i_string>;
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template class I_List<i_string_pair>;
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template class I_List<NAMED_LIST>;
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template class I_List<Statement>;
template class I_List_iterator<Statement>;
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#endif
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