# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1599845403 -7200
# Node ID a5bda73bc640d4ed8fffe5bf58d9800e1a4b9c2f
# Parent  dc7da37a0a7d7b318d5fc8328dea3080928edce1
patch 8.2.1661: cannot connect to 127.0.0.1 for host with only IPv6 addresses

Commit: https://github.com/vim/vim/commit/c6a67c92bcbf4ef09063814af0c65d3e0585ada0
Author: Bram Moolenaar <Bram@vim.org>
Date:   Fri Sep 11 19:28:19 2020 +0200

    patch 8.2.1661: cannot connect to 127.0.0.1 for host with only IPv6 addresses

    Problem:    Cannot connect to 127.0.0.1 for host with only IPv6 addresses.
    Solution:   pass AI_V4MAPPED flag to getaddrinfo. (Filipe Brandenburger,
                closes #6931)

diff --git a/src/channel.c b/src/channel.c
--- a/src/channel.c
+++ b/src/channel.c
@@ -977,8 +977,8 @@ channel_open(
     CLEAR_FIELD(hints);
     hints.ai_family = AF_UNSPEC;
     hints.ai_socktype = SOCK_STREAM;
-# ifdef AI_ADDRCONFIG
-    hints.ai_flags = AI_ADDRCONFIG;
+# if defined(AI_ADDRCONFIG) && defined(AI_V4MAPPED)
+    hints.ai_flags = AI_ADDRCONFIG | AI_V4MAPPED;
 # endif
     // Set port number manually in order to prevent name resolution services
     // from being invoked in the environment where AI_NUMERICSERV is not
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1661,
+/**/
     1660,
 /**/
     1659,