From 5f265b755a92e7efdbd0d18694913209dfd9e055 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Fri, 11 May 2001 16:58:46 +0000
Subject: Fix a segfault in lash, hush, and cmdedit.  Each of these used
 xgetcwd, but did not check the return for a NULL, and then continued to call
 strlen on the NULL when the cwd had been removed from under it.  -Erik

---
 shell/cmdedit.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'shell/cmdedit.c')

diff --git a/shell/cmdedit.c b/shell/cmdedit.c
index ce5450032..ec9939312 100644
--- a/shell/cmdedit.c
+++ b/shell/cmdedit.c
@@ -355,6 +355,10 @@ static void parse_prompt(const char *prmt_ptr)
 	char  c;
 	char *pbuf;
 
+	if (!pwd_buf) {
+		pwd_buf=unknown;
+	}
+
 	while (*prmt_ptr) {
 		pbuf    = buf;
 		pbuf[1] = 0;
-- 
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