Commit 115c62f5 authored by sasha@mysql.sashanet.com's avatar sasha@mysql.sashanet.com
Browse files

fixed coredump in mysql_reconnect()

parent c0b4b236

libmysql/libmysql.c

+19 −0
Original line number Diff line number Diff line
@@ -1845,6 +1845,23 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user, 
  DBUG_RETURN(0);

}



/* needed when we move MYSQL structure to a different address */

static void mysql_fix_pointers(MYSQL* mysql, MYSQL* old_mysql)

{

  MYSQL *tmp, *tmp_prev;

  if (mysql->master == old_mysql)

    mysql->master = mysql;

  if (mysql->last_used_con == old_mysql)

    mysql->last_used_con = mysql;

  if (mysql->last_used_slave == old_mysql)

    mysql->last_used_slave = mysql;

  for (tmp_prev = mysql, tmp = mysql->next_slave;

       tmp != old_mysql;tmp = tmp->next_slave)

  {

    tmp_prev = tmp;

  }

  tmp_prev->next_slave = mysql;

}



static my_bool mysql_reconnect(MYSQL *mysql)

{
@@ -1860,6 +1877,7 @@ static my_bool mysql_reconnect(MYSQL *mysql) 
  }

  mysql_init(&tmp_mysql);

  tmp_mysql.options=mysql->options;

  tmp_mysql.rpl_pivot = mysql->rpl_pivot;

  if (!mysql_real_connect(&tmp_mysql,mysql->host,mysql->user,mysql->passwd,

			  mysql->db, mysql->port, mysql->unix_socket,

			  mysql->client_flag))
@@ -1869,6 +1887,7 @@ static my_bool mysql_reconnect(MYSQL *mysql) 
  bzero((char*) &mysql->options,sizeof(mysql->options));

  mysql_close(mysql);

  *mysql=tmp_mysql;

  mysql_fix_pointers(mysql, &tmp_mysql); /* adjust connection pointers */  

  net_clear(&mysql->net);

  mysql->affected_rows= ~(my_ulonglong) 0;

  DBUG_RETURN(0);