replication bugfixes

sql/slave.cc:
  removed buggy loop
sql/slave.h:
  fixed uninited variable use

sql/slave.cc

@@ -1568,9 +1568,6 @@ command");
 static ulong read_event(MYSQL* mysql, MASTER_INFO *mi)
 {
   ulong len = packet_error;
-  // for convinience lets think we start by
-  // being in the interrupted state :-)
-  int read_errno = EINTR;
 
   // my_real_read() will time us out
   // we check if we were told to die, and if not, try reading again
@@ -1579,27 +1576,21 @@ static ulong read_event(MYSQL* mysql, MASTER_INFO *mi)
     return packet_error;      
 #endif
   
-  while (!abort_loop && !mi->abort_slave && len == packet_error &&
-	 read_errno == EINTR )
-  {
   len = mc_net_safe_read(mysql);
-    read_errno = errno;
-  }
-  if (abort_loop || mi->abort_slave)
-    return packet_error;
+
   if (len == packet_error || (long) len < 1)
   {
-    sql_print_error("Error reading packet from server: %s (read_errno %d,\
+    sql_print_error("Error reading packet from server: %s (\
 server_errno=%d)",
-		    mc_mysql_error(mysql), read_errno, mc_mysql_errno(mysql));
+		    mc_mysql_error(mysql), mc_mysql_errno(mysql));
     return packet_error;
   }
 
   if (len == 1)
   {
      sql_print_error("Slave: received 0 length packet from server, apparent\
- master shutdown: %s (%d)",
-		     mc_mysql_error(mysql), read_errno);
+ master shutdown: %s",
+		     mc_mysql_error(mysql));
      return packet_error;
   }
   

sql/slave.h

@@ -160,6 +160,7 @@ typedef struct st_relay_log_info
   
   st_relay_log_info():info_fd(-1),cur_log_fd(-1),inited(0),
 		      cur_log_init_count(0),
+		      abort_slave(0),slave_running(0),
 		      log_pos_current(0),abort_pos_wait(0),
 		      skip_log_purge(0)
     {
@@ -280,7 +281,8 @@ typedef struct st_master_info
   bool ignore_stop_event;
   
   
-  st_master_info():fd(-1), io_thd(0), inited(0), old_format(0)
+  st_master_info():fd(-1), io_thd(0), inited(0), old_format(0),abort_slave(0),
+		   slave_running(0)
   {
     host[0] = 0; user[0] = 0; password[0] = 0;
     bzero(&file,sizeof(file));