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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
commit a59a444108
2 changed files with 19 additions and 21 deletions
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10
sql/hostname.cc
View file

@ -130,15 +130,23 @@ void reset_host_errors(struct in_addr *in)
VOID(pthread_mutex_unlock(&hostname_cache->lock));
}
/* Deal with systems that don't defined INADDR_LOOPBACK */
#ifndef INADDR_LOOPBACK
#define INADDR_LOOPBACK 0x7f000001UL
#endif
my_string ip_to_hostname(struct in_addr *in, uint *errors)
{
uint i;
host_entry *entry;
DBUG_ENTER("ip_to_hostname");
*errors= 0;
/* We always treat the loopback address as "localhost". */
if (in->s_addr == htonl(INADDR_LOOPBACK))
DBUG_RETURN((char *)my_localhost);
/* Check first if we have name in cache */
*errors=0;
if (!(specialflag & SPECIAL_NO_HOST_CACHE))
{
VOID(pthread_mutex_lock(&hostname_cache->lock));