From 026ab797eb49c4e148a266f4d88f5a7ddab14027 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Mon, 7 Sep 2015 22:40:37 +0900
Subject: [PATCH] src: util::numeric_host: Use inet_pton instead of getaddrinfo

---
 src/util.cc | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/src/util.cc b/src/util.cc
index 9b709dbe..58d6272e 100644
--- a/src/util.cc
+++ b/src/util.cc
@@ -636,19 +636,16 @@ void write_uri_field(std::ostream &o, const char *uri, const http_parser_url &u,
 }
 
 bool numeric_host(const char *hostname) {
-  return numeric_host(hostname, AF_UNSPEC);
+  return numeric_host(hostname, AF_INET) || numeric_host(hostname, AF_INET6);
 }
 
 bool numeric_host(const char *hostname, int family) {
-  struct addrinfo *res;
-  struct addrinfo hints {};
-  hints.ai_family = family;
-  hints.ai_flags = AI_NUMERICHOST;
-  if (getaddrinfo(hostname, nullptr, &hints, &res)) {
-    return false;
-  }
-  freeaddrinfo(res);
-  return true;
+  int rv;
+  std::array<uint8_t, sizeof(struct in6_addr)> dst;
+
+  rv = inet_pton(family, hostname, dst.data());
+
+  return rv == 1;
 }
 
 std::string numeric_name(const struct sockaddr *sa, socklen_t salen) {