Core: externalized ngx_cmp_sockaddr().
It's also extended with the "cmp_port" argument to indicate
whether ports should be compared as well, or only addresses.
diff --git a/src/core/ngx_inet.c b/src/core/ngx_inet.c
index 0792d6e..26c5bc4 100644
--- a/src/core/ngx_inet.c
+++ b/src/core/ngx_inet.c
@@ -1196,3 +1196,76 @@
}
#endif /* NGX_HAVE_GETADDRINFO && NGX_HAVE_INET6 */
+
+
+ngx_int_t
+ngx_cmp_sockaddr(struct sockaddr *sa1, socklen_t slen1,
+ struct sockaddr *sa2, socklen_t slen2, ngx_uint_t cmp_port)
+{
+ struct sockaddr_in *sin1, *sin2;
+#if (NGX_HAVE_INET6)
+ struct sockaddr_in6 *sin61, *sin62;
+#endif
+#if (NGX_HAVE_UNIX_DOMAIN)
+ struct sockaddr_un *saun1, *saun2;
+#endif
+
+ if (sa1->sa_family != sa2->sa_family) {
+ return NGX_DECLINED;
+ }
+
+ switch (sa1->sa_family) {
+
+#if (NGX_HAVE_INET6)
+ case AF_INET6:
+
+ sin61 = (struct sockaddr_in6 *) sa1;
+ sin62 = (struct sockaddr_in6 *) sa2;
+
+ if (cmp_port && sin61->sin6_port != sin62->sin6_port) {
+ return NGX_DECLINED;
+ }
+
+ if (ngx_memcmp(&sin61->sin6_addr, &sin62->sin6_addr, 16) != 0) {
+ return NGX_DECLINED;
+ }
+
+ break;
+#endif
+
+#if (NGX_HAVE_UNIX_DOMAIN)
+ case AF_UNIX:
+
+ /* TODO length */
+
+ saun1 = (struct sockaddr_un *) sa1;
+ saun2 = (struct sockaddr_un *) sa2;
+
+ if (ngx_memcmp(&saun1->sun_path, &saun2->sun_path,
+ sizeof(saun1->sun_path))
+ != 0)
+ {
+ return NGX_DECLINED;
+ }
+
+ break;
+#endif
+
+ default: /* AF_INET */
+
+ sin1 = (struct sockaddr_in *) sa1;
+ sin2 = (struct sockaddr_in *) sa2;
+
+ if (cmp_port && sin1->sin_port != sin2->sin_port) {
+ return NGX_DECLINED;
+ }
+
+ if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {
+ return NGX_DECLINED;
+ }
+
+ break;
+ }
+
+ return NGX_OK;
+}
