database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-31 22:22:30 +03:00
Code Activity

Cut hostnames at HOSTNAME_LENGTH to avoid theoretical hostname overruns

Browse Source 
Changed long packat handling to check for packets of length 0xffffff.
This does however break packet handling for older clients.
If you are using packets >= 16M then you need to upgrade client and server
after this patch.


Docs/internals.texi:
  Updated documentation for 4.1 protocol
sql/ha_innodb.cc:
  Optimization of checking command
sql/item.h:
  Removed automatic set of length for Item_string
sql/item_create.cc:
  Optimized create of create_func_current_user()
sql/net_serv.cc:
  Fixed wrong max packet length
sql/sql_acl.cc:
  Safety fix.
sql/sql_parse.cc:
  Cut hostnames at HOSTNAME_LENGTH to avoid theoretical hostname overruns
This commit is contained in:
unknown
2002-12-26 18:26:37 +02:00
parent ad22d0cbac
commit f1696d4f5f
7 changed files with 56 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sql/sql_parse.cc
View File

@@ -496,6 +496,7 @@ check_connections(THD *thd)
{
vio_in_addr(net->vio,&thd->remote.sin_addr);
thd->host=ip_to_hostname(&thd->remote.sin_addr,&connect_errors);
thd->host[strnlen(thd->host, HOSTNAME_LENGTH)]= 0;
if (connect_errors > max_connect_errors)
return(ER_HOST_IS_BLOCKED);
}
@@ -512,6 +513,7 @@ check_connections(THD *thd)
thd->ip=0;
bzero((char*) &thd->remote,sizeof(struct sockaddr));
}
/* Ensure that wrong hostnames doesn't cause buffer overflows */
vio_keepalive(net->vio, TRUE);
ulong pkt_len=0;