From a3f4cd5019b60649f6eb216ebe99caa43cd96f8e Mon Sep 17 00:00:00 2001
From: Daiki Ueno <dueno@redhat.com>
Date: Mon, 26 Apr 2021 14:40:17 +0200
Subject: [PATCH] BIO_lookup_ex: use AI_ADDRCONFIG only if explicit host name
 is given

The flag only affects which record types are queried (A or AAAA, or
both), and when node is NULL, it prevents getaddrinfo returning the
right address associated with the loopback interface.

Signed-off-by: Daiki Ueno <dueno@redhat.com>
---
 crypto/bio/b_addr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/bio/b_addr.c b/crypto/bio/b_addr.c
index b023bbda40..ea15601f3d 100644
--- a/crypto/bio/b_addr.c
+++ b/crypto/bio/b_addr.c
@@ -689,7 +689,7 @@ int BIO_lookup_ex(const char *host, const char *service, int lookup_type,
         hints.ai_protocol = protocol;
 # ifdef AI_ADDRCONFIG
 #  ifdef AF_UNSPEC
-        if (family == AF_UNSPEC)
+        if (host != NULL && family == AF_UNSPEC)
 #  endif
             hints.ai_flags |= AI_ADDRCONFIG;
 # endif
-- 
2.30.2