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Minimal IPv6 support.

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redisContextConnectTcp() is now able to use IPv6 addresses if there is
no IPv4 address found resolving the specified hostname.
This commit is contained in:
antirez 2013-07-11 11:39:03 +02:00
parent 253e796a59
commit 06919b3f86
1 changed files with 10 additions and 2 deletions
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12
net.c
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@ -255,9 +255,17 @@ int redisContextConnectTcp(redisContext *c, const char *addr, int port, const st
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
/* Try with IPv6 if no IPv4 address was found. We do it in this order since
* in a Redis client you can't afford to test if you have IPv6 connectivity
* as this would add latency to every connect. Otherwise a more sensible
* route could be: Use IPv6 if both addresses are available and there is IPv6
* connectivity. */
if ((rv = getaddrinfo(addr,_port,&hints,&servinfo)) != 0) {
__redisSetError(c,REDIS_ERR_OTHER,gai_strerror(rv));
return REDIS_ERR;
hints.ai_family = AF_INET6;
if ((rv = getaddrinfo(addr,_port,&hints,&servinfo)) != 0) {
__redisSetError(c,REDIS_ERR_OTHER,gai_strerror(rv));
return REDIS_ERR;
}
}
for (p = servinfo; p != NULL; p = p->ai_next) {
if ((s = socket(p->ai_family,p->ai_socktype,p->ai_protocol)) == -1)