From 76c874b068138cb16ed42654ada923d4335bb756 Mon Sep 17 00:00:00 2001
From: Pascal Stumpf <Pascal.Stumpf@cubes.de>
Date: Tue, 20 Nov 2012 19:42:33 +0100
Subject: [PATCH] dtgreet: Do not crash if LANG is not set in the environment.

In that case, catopen() will have never been called, and we'd feed 0 as the
first argument to catgets().  This crashes, at least on OpenBSD.
---
 cde/programs/dtlogin/vgutil.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cde/programs/dtlogin/vgutil.c b/cde/programs/dtlogin/vgutil.c
index 1d7e73ed6..f38c7778c 100644
--- a/cde/programs/dtlogin/vgutil.c
+++ b/cde/programs/dtlogin/vgutil.c
@@ -791,7 +791,7 @@ unsigned char *
 ReadCatalog(int setn, int msgn, char *dflt)
 {
     OpenCatalog();
-    if (0 > (int) nl_fd)
+    if ((0 > (int) nl_fd) || (NULL == langenv))
       return (unsigned char*) dflt;
     else
       return (unsigned char*) catgets(nl_fd, setn, msgn, dflt);