Check for NULL argv0.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1516 ec53bebd-3082-4978-b11e-865c3cabbd6b
1997-03-30 15:52:28 +00:00
parent c1bf225509
commit 4fe9b6717b
1 changed files with 4 additions and 1 deletions
--- 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