changeset 5312:ec8594b9bf11

Core: only resolve address families configured on the local system. This is done by passing AI_ADDRCONFIG to getaddrinfo(). On Linux, setting net.ipv6.conf.all.disable_ipv6 to 1 will now be respected. On FreeBSD, AI_ADDRCONFIG filtering is currently implemented by attempting to create a datagram socket for the corresponding family, which succeeds even if the system doesn't in fact have any addresses of that family configured. That is, if the system with IPv6 support in the kernel doesn't have IPv6 addresses configured, AI_ADDRCONFIG will filter out IPv6 only inside a jail without IPv6 addresses or with IPv6 disabled.
author Ruslan Ermilov <ru@nginx.com>
date Mon, 05 Aug 2013 10:55:59 +0400
parents ae3fd1ca62e0
children 1fe5f7fb6ced
files auto/unix src/core/ngx_inet.c
diffstat 2 files changed, 7 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/auto/unix
+++ b/auto/unix
@@ -788,7 +788,11 @@ ngx_feature_incs="#include <sys/types.h>
                   #include <netdb.h>"
 ngx_feature_path=
 ngx_feature_libs=
-ngx_feature_test='struct addrinfo *res;
-                  if (getaddrinfo("localhost", NULL, NULL, &res) != 0) return 1;
+ngx_feature_test='struct addrinfo hints, *res;
+                  hints.ai_family = AF_UNSPEC;
+                  hints.ai_socktype = SOCK_STREAM;
+                  hints.ai_flags = AI_ADDRCONFIG;
+                  if (getaddrinfo("localhost", NULL, &hints, &res) != 0)
+                      return 1;
                   freeaddrinfo(res)'
 . auto/feature
--- a/src/core/ngx_inet.c
+++ b/src/core/ngx_inet.c
@@ -963,6 +963,7 @@ ngx_inet_resolve_host(ngx_pool_t *pool, 
     ngx_memzero(&hints, sizeof(struct addrinfo));
     hints.ai_family = AF_UNSPEC;
     hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_ADDRCONFIG;
 
     if (getaddrinfo((char *) host, NULL, &hints, &res) != 0) {
         u->err = "host not found";