From d6195c4344a7d9258f1766e7097de1c5c1d91921 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Mon, 21 Feb 2011 17:41:25 +0100
Subject: [PATCH] check return value of getcwd()

---
 src/config.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/config.c b/src/config.c
index ea2dba150..632a73989 100644
--- a/src/config.c
+++ b/src/config.c
@@ -468,10 +468,12 @@ void configGetCommand(redisClient *c) {
     if (stringmatch(pattern,"dir",0)) {
         char buf[1024];
 
-        buf[0] = '\0';
-        getcwd(buf,sizeof(buf));
         addReplyBulkCString(c,"dir");
-        addReplyBulkCString(c,buf);
+        if (getcwd(buf,sizeof(buf)) == NULL) {
+            buf[0] = '\0';
+        } else {
+            addReplyBulkCString(c,buf);
+        }
         matches++;
     }
     if (stringmatch(pattern,"dbfilename",0)) {