diff --git a/redis.c b/redis.c index e4f1a763..c730c04c 100644 --- a/redis.c +++ b/redis.c @@ -5071,6 +5071,11 @@ static int syncWithMaster(void) { strerror(errno)); return REDIS_ERR; } + if (buf[0] != '$') { + close(fd); + redisLog(REDIS_WARNING,"Bad protocol from MASTER, the first byte is not '$', are you sure the host and port are right?"); + return REDIS_ERR; + } dumpsize = atoi(buf+1); redisLog(REDIS_NOTICE,"Receiving %d bytes data dump from MASTER",dumpsize); /* Read the bulk write data on a temp file */