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Backport of JimW's localhost patch to 4.1 tree.

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Handle systems like default FC4 where 127.0.0.1 doesn't always map to 'localhost' first. 
(Bug #11822)


sql/hostname.cc:
  Short-circuit ip_to_hostname() lookup for INADDR_LOOPBACK to allways return 'localhost'.
sql/sql_parse.cc:
  Push special handling of 127.0.0.1 into ip_to_hostname().
This commit is contained in:
unknown
2005-09-02 17:07:05 -07:00
parent cbb1da77cf
commit a59a444108
2 changed files with 19 additions and 21 deletions
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30
sql/sql_parse.cc
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@ -696,29 +696,19 @@ static int check_connection(THD *thd)
return (ER_OUT_OF_RESOURCES);
thd->host_or_ip= thd->ip;
vio_in_addr(net->vio,&thd->remote.sin_addr);
#if !defined(HAVE_SYS_UN_H) || defined(HAVE_mit_thread)
/* Fast local hostname resolve for Win32 */
if (!strcmp(thd->ip,"127.0.0.1"))
if (!(specialflag & SPECIAL_NO_RESOLVE))
{
thd->host= (char*) my_localhost;
thd->host_or_ip= my_localhost;
}
else
#endif
{
if (!(specialflag & SPECIAL_NO_RESOLVE))
vio_in_addr(net->vio,&thd->remote.sin_addr);
thd->host=ip_to_hostname(&thd->remote.sin_addr,&connect_errors);
/* Cut very long hostnames to avoid possible overflows */
if (thd->host)
{
vio_in_addr(net->vio,&thd->remote.sin_addr);
thd->host=ip_to_hostname(&thd->remote.sin_addr,&connect_errors);
/* Cut very long hostnames to avoid possible overflows */
if (thd->host)
{
thd->host[min(strlen(thd->host), HOSTNAME_LENGTH)]= 0;
thd->host_or_ip= thd->host;
}
if (connect_errors > max_connect_errors)
return(ER_HOST_IS_BLOCKED);
if (thd->host != my_localhost)
thd->host[min(strlen(thd->host), HOSTNAME_LENGTH)]= 0;
thd->host_or_ip= thd->host;
}
if (connect_errors > max_connect_errors)
return(ER_HOST_IS_BLOCKED);
}
DBUG_PRINT("info",("Host: %s ip: %s",
thd->host ? thd->host : "unknown host",