$OpenBSD: patch-lib_sh_getenv_c,v 1.1 2004/07/30 17:02:49 naddy Exp $
--- lib/sh/getenv.c.orig	Sun Sep 29 02:38:58 2002
+++ lib/sh/getenv.c	Sun Sep 29 02:39:15 2002
@@ -78,7 +78,7 @@ getenv (name)
 	 shell_variables will be 0 when this is invoked.  We look up the
 	 variable in the real environment in that case. */
 
-      for (i = 0, len = strlen (name); environ[i]; i++)
+      for (i = 0, len = strlen (name); environ && environ[i]; i++)
 	{
 	  if ((STREQN (environ[i], name, len)) && (environ[i][len] == '='))
 	    return (environ[i] + len + 1);