From dda93651f7dd782ba5cf8c8c19053a792dab80f3 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Tue, 24 Aug 2010 16:27:40 +0200
Subject: [PATCH] slave now detect lost connection during SYNC, fixing Issue
 173

---
 redis.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/redis.c b/redis.c
index 1f7b0642..d3f5975d 100644
--- a/redis.c
+++ b/redis.c
@@ -8074,9 +8074,9 @@ static int syncWithMaster(void) {
         int nread, nwritten;
 
         nread = read(fd,buf,(dumpsize < 1024)?dumpsize:1024);
-        if (nread == -1) {
+        if (nread <= 0) {
             redisLog(REDIS_WARNING,"I/O error trying to sync with MASTER: %s",
-                strerror(errno));
+                (nread == -1) ? strerror(errno) : "connection lost");
             close(fd);
             close(dfd);
             return REDIS_ERR;