Fix sending uninitialized bytes

Fixes valgrind error:
Syscall param write(buf) points to uninitialised byte(s)
   at 0x514C35D: ??? (syscall-template.S:81)
   by 0x456B81: clusterWriteHandler (cluster.c:1907)
   by 0x41D596: aeProcessEvents (ae.c:416)
   by 0x41D8EA: aeMain (ae.c:455)
   by 0x41A84B: main (redis.c:3832)
 Address 0x5f268e2 is 2,274 bytes inside a block of size 8,192 alloc'd
   at 0x4932D1: je_realloc (jemalloc.c:1297)
   by 0x428185: zrealloc (zmalloc.c:162)
   by 0x4269E0: sdsMakeRoomFor.part.0 (sds.c:142)
   by 0x426CD7: sdscatlen (sds.c:251)
   by 0x4579E7: clusterSendMessage (cluster.c:1995)
   by 0x45805A: clusterSendPing (cluster.c:2140)
   by 0x45BB03: clusterCron (cluster.c:2944)
   by 0x423344: serverCron (redis.c:1239)
   by 0x41D6CD: aeProcessEvents (ae.c:311)
   by 0x41D8EA: aeMain (ae.c:455)
   by 0x41A84B: main (redis.c:3832)
 Uninitialised value was created by a stack allocation
   at 0x457810: nodeUpdateAddressIfNeeded (cluster.c:1236)
This commit is contained in:
Matt Stancliff 2015-01-14 11:21:50 -05:00 committed by antirez
parent acb1d8debf
commit 72b8574cca

View File

@ -1249,7 +1249,7 @@ void nodeIp2String(char *buf, clusterLink *link) {
* The function returns 0 if the node address is still the same,
* otherwise 1 is returned. */
int nodeUpdateAddressIfNeeded(clusterNode *node, clusterLink *link, int port) {
char ip[REDIS_IP_STR_LEN];
char ip[REDIS_IP_STR_LEN] = {0};
/* We don't proceed if the link is the same as the sender link, as this
* function is designed to see if the node link is consistent with the