Safety fixes (strnmov -> strmake)

sql/mysqld.cc:
  Safety fix
sql/set_var.cc:
  Safety fix
sql/sql_db.cc:
  indentation cleanup

sql/mysqld.cc

@@ -5619,7 +5619,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
       fprintf(stderr, "Invalid ft-boolean-syntax string: %s\n", argument);
       exit(1);
     }
-    strnmov(opt_ft_boolean_syntax, argument, sizeof(ft_boolean_syntax));
+    strmake(opt_ft_boolean_syntax, argument, sizeof(ft_boolean_syntax)-1);
     break;
   case OPT_SKIP_SAFEMALLOC:
 #ifdef SAFEMALLOC
@@ -5668,7 +5668,8 @@ static void get_options(int argc,char **argv)
   int ho_error;
 
   my_getopt_register_get_addr(mysql_getopt_value);
-  strnmov(opt_ft_boolean_syntax, ft_boolean_syntax, sizeof(ft_boolean_syntax));
+  strmake(opt_ft_boolean_syntax, ft_boolean_syntax, 
+	  sizeof(ft_boolean_syntax)-1);
   if ((ho_error=handle_options(&argc, &argv, my_long_options, get_one_option)))
     exit(ho_error);
   if (argc > 0)
@@ -5724,7 +5725,8 @@ static void get_options(int argc,char **argv)
   table_alias_charset= (lower_case_table_names ?
 			files_charset_info :
 			&my_charset_bin);
-  strnmov(ft_boolean_syntax, opt_ft_boolean_syntax, sizeof(ft_boolean_syntax));
+  strmake(ft_boolean_syntax, opt_ft_boolean_syntax,
+	  sizeof(ft_boolean_syntax)-1);
 
   if (opt_short_log_format)
     opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;

sql/set_var.cc

@@ -860,7 +860,7 @@ static void sys_default_init_slave(THD* thd, enum_var_type type)
 static int sys_check_ftb_syntax(THD *thd,  set_var *var)
 {
   if (thd->master_access & SUPER_ACL)
-    return ft_boolean_check_syntax_string(var->value->str_value.ptr()) ?
+    return ft_boolean_check_syntax_string(var->value->str_value.c_ptr()) ?
       -1 : 0;
   else
   {
@@ -871,13 +871,15 @@ static int sys_check_ftb_syntax(THD *thd,  set_var *var)
 
 static bool sys_update_ftb_syntax(THD *thd, set_var * var)
 {
-  strnmov(ft_boolean_syntax, var->value->str_value.ptr(), sizeof(ft_boolean_syntax));
+  strmake(ft_boolean_syntax, var->value->str_value.c_ptr(),
+	  sizeof(ft_boolean_syntax)-1);
   return 0;
 }
 
 static void sys_default_ftb_syntax(THD *thd, enum_var_type type)
 {
-  strnmov(ft_boolean_syntax, opt_ft_boolean_syntax, sizeof(ft_boolean_syntax));
+  strmake(ft_boolean_syntax, opt_ft_boolean_syntax,
+	  sizeof(ft_boolean_syntax)-1);
 }
 
 /*

sql/sql_db.cc

@@ -58,9 +58,9 @@ static bool write_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create)
   if ((file=my_create(path, CREATE_MODE,O_RDWR | O_TRUNC,MYF(MY_WME))) >= 0)
   {
     ulong length;
-    CHARSET_INFO *cs= (create && create->default_table_charset) ? 
+    CHARSET_INFO *cs= ((create && create->default_table_charset) ? 
 		       create->default_table_charset :
-		     thd->variables.collation_server;
+		       thd->variables.collation_server);
     length= my_sprintf(buf,(buf,
 			    "default-character-set=%s\ndefault-collation=%s\n",
 			    cs->csname,cs->name));
@@ -116,7 +116,8 @@ bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create)
       {
 	if (!strncmp(buf,"default-character-set", (pos-buf)))
 	{
-	  if (!(create->default_table_charset= get_charset_by_csname(pos+1, 
+	  if (!(create->default_table_charset=
+		get_charset_by_csname(pos+1, 
 				      MY_CS_PRIMARY,
 				      MYF(0))))
 	  {