From 4fe9b6717be99c15c9139e97f9cb9bd613115477 Mon Sep 17 00:00:00 2001
From: Johan Danielsson <joda@pdc.kth.se>
Date: Sun, 30 Mar 1997 15:52:28 +0000
Subject: [PATCH] Check for NULL argv0.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1516 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/roken/warnerr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/roken/warnerr.c b/lib/roken/warnerr.c
index 057fc23c7..89c04fe0d 100644
--- a/lib/roken/warnerr.c
+++ b/lib/roken/warnerr.c
@@ -51,7 +51,10 @@ void
 set_progname(char *argv0)
 {
 #ifndef HAVE___PROGNAME
-    char *p = strrchr(argv0, '/');
+    char *p;
+    if(argv == NULL)
+	return;
+    p = strrchr(argv0, '/');
     if(p == NULL)
 	p = argv0;
     else