nm4 2007/10/18 13:01:00 BST
Modified files:
exim-src/src host.c
Log:
Defend against bad data from gethostbyaddr(). Fixes bug #619
Revision Changes Path
1.29 +1 -1 exim/exim-src/src/host.c
Index: host.c
===================================================================
RCS file: /home/cvs/exim/exim-src/src/host.c,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -r1.28 -r1.29
--- host.c 8 Jan 2007 10:50:18 -0000 1.28
+++ host.c 18 Oct 2007 12:01:00 -0000 1.29
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/exim-src/src/host.c,v 1.28 2007/01/08 10:50:18 ph10 Exp $ */
+/* $Cambridge: exim/exim-src/src/host.c,v 1.29 2007/10/18 12:01:00 nm4 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
@@ -1502,7 +1502,7 @@
treat this as non-existent. In some operating systems, this is returned as an
empty string; in others as a single dot. */
-if (hosts->h_name[0] == 0 || hosts->h_name[0] == '.')
+if (hosts->h_name == NULL || hosts->h_name[0] == 0 || hosts->h_name[0] == '.')
{
HDEBUG(D_host_lookup) debug_printf("IP address lookup yielded an empty name: "
"treated as non-existent host name\n");
