bk commit into 3.23 tree (1.1425)

[guilhem]

Below is the list of changes that have just been committed into a local
3.23 repository of guilhem. When guilhem does a push these changes will
be propagated to the main repository and, within 24 hours after the
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ChangeSet
  1.1425 04/06/17 15:40:13 guilhem@stripped +1 -0
  Fix for BUG#4017 "mysql_real_connect buffer overflow"

  libmysql/libmysql.c
    1.80 04/06/17 15:40:12 guilhem@stripped +2 -1
    safety fix

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	guilhem
# Host:	gbichot2.local
# Root:	/home/mysql_src/mysql-3.23

--- 1.79/libmysql/libmysql.c	2003-03-10 10:50:46 +01:00
+++ 1.80/libmysql/libmysql.c	2004-06-17 15:40:12 +02:00
@@ -1358,7 +1358,8 @@
 	my_gethostbyname_r_free();
 	goto error;
       }
-      memcpy(&sock_addr.sin_addr,hp->h_addr, (size_t) hp->h_length);
+      memcpy(&sock_addr.sin_addr, hp->h_addr,
+             min(sizeof(sock_addr.sin_addr), (size_t) hp->h_length));
       my_gethostbyname_r_free();
     }
     sock_addr.sin_port = (ushort) htons((ushort) port);