From 0c1e2e493d4056b2ed0f62be41ef17d1ed49c11a Mon Sep 17 00:00:00 2001
From: Tatsuo Ishii <ishii@postgresql.org>
Date: Thu, 13 May 1999 10:28:26 +0000
Subject: set client_encoding to <nothing> crashes backend.

---
 src/backend/utils/mb/common.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/backend/utils/mb/common.c')

diff --git a/src/backend/utils/mb/common.c b/src/backend/utils/mb/common.c
index b6bcae3b156..6d90c734454 100644
--- a/src/backend/utils/mb/common.c
+++ b/src/backend/utils/mb/common.c
@@ -2,7 +2,7 @@
  * This file contains some public functions
  * usable for both the backend and the frontend.
  * Tatsuo Ishii
- * $Id: common.c,v 1.3 1998/10/06 03:02:21 momjian Exp $ */
+ * $Id: common.c,v 1.4 1999/05/13 10:28:25 ishii Exp $ */
 
 #include <stdlib.h>
 
@@ -28,6 +28,10 @@ pg_char_to_encoding(const char *s)
 {
 	pg_encoding_conv_tbl *p = pg_conv_tbl;
 
+        if (!s) {
+		return (-1);
+	}
+
 	for (; p->encoding >= 0; p++)
 	{
 		if (!strcasecmp(s, p->name))
-- 
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