From e1f38f9b6885691bf26c8eb825e4863549a52765 Mon Sep 17 00:00:00 2001
From: deep-42-thought <github@eckner.net>
Date: Fri, 19 Jan 2018 15:06:27 +0100
Subject: [PATCH] enable irc to use ipv6 if host can't be reached via ipv4
 (#380)

---
 src/irc.cc | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/irc.cc b/src/irc.cc
index a4fbf51d..6e99790c 100644
--- a/src/irc.cc
+++ b/src/irc.cc
@@ -157,8 +157,20 @@ void *ircclient(void *ptr) {
 	} else {
 		port = IRCPORT;
 	}
-	if(irc_connect(ircobj->session, server, port, IRCSERVERPASS, IRCNICK, IRCUSER, IRCREAL) != 0) {
-		NORM_ERR("irc: %s", irc_strerror(irc_errno(ircobj->session)));
+	int err = irc_connect(ircobj->session, server, port, IRCSERVERPASS, IRCNICK, IRCUSER, IRCREAL);
+	if(err != 0) {
+		err = irc_errno(ircobj->session);
+	}
+#ifdef BUILD_IPV6
+	if(err == LIBIRC_ERR_RESOLV) {
+		err = irc_connect6(ircobj->session, server, port, IRCSERVERPASS, IRCNICK, IRCUSER, IRCREAL);
+		if(err != 0) {
+			err = irc_errno(ircobj->session);
+		}
+	}
+#endif /* BUILD_IPV6 */
+	if(err != 0) {
+		NORM_ERR("irc: %s", irc_strerror(err));
 	}
 	if(irc_run(ircobj->session) != 0) {
 		int ircerror = irc_errno(ircobj->session);