1 files changed, 4 insertions, 1 deletions

diff --git a/servconf.c b/servconf.c
index 96ad18084..ddb34f9b9 100644
--- a/servconf.c
+++ b/servconf.c
@@ -10,7 +10,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.140 2005/03/10 22:01:05 deraadt Exp $");
+RCSID("$OpenBSD: servconf.c,v 1.141 2005/05/16 15:30:51 markus Exp $");
 
 #include "ssh.h"
 #include "log.h"
@@ -532,6 +532,9 @@ parse_time:
 
         case sAddressFamily:
                 arg = strdelim(&cp);
+                if (!arg || *arg == '\0')
+                        fatal("%s line %d: missing address family.",
+                            filename, linenum);
                 intptr = &options->address_family;
                 if (options->listen_addrs != NULL)
                         fatal("%s line %d: address family must be specified before "