1 files changed, 4 insertions, 1 deletions

diff --git a/readconf.c b/readconf.c
index 8ace1bbd4..d41220807 100644
--- a/readconf.c
+++ b/readconf.c
@@ -12,7 +12,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: readconf.c,v 1.139 2005/03/10 22:01:05 deraadt Exp $");
+RCSID("$OpenBSD: readconf.c,v 1.140 2005/05/16 15:30:51 markus Exp $");
 
 #include "ssh.h"
 #include "xmalloc.h"
@@ -743,6 +743,9 @@ parse_int:
 
         case oAddressFamily:
                 arg = strdelim(&s);
+                if (!arg || *arg == '\0')
+                        fatal("%s line %d: missing address family.",
+                            filename, linenum);
                 intptr = &options->address_family;
                 if (strcasecmp(arg, "inet") == 0)
                         value = AF_INET;