From 8dfa48d0b5b64ab8bbc78aabfea8252db38215c5 Mon Sep 17 00:00:00 2001
From: xuyinghao <xuyinghao2@huawei.com>
Date: Tue, 16 Aug 2022 19:36:03 +0800
Subject: [PATCH 03/13] sockettest: Check for IPv4-in-IPv6 parsing and
 formatting

There are two standards how IPv4 address in IPv6 can be expressed:

  ::10.1.2.3
  ::ffff:10.1.2.3

The former is obsolete and the latter should be used instead [1]. Add test cases to our sockettest to exercise parsing/formatting of the valid address format.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com
---
 tests/sockettest.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/sockettest.c b/tests/sockettest.c
index 29a565de40..b30bf0008f 100644
--- a/tests/sockettest.c
+++ b/tests/sockettest.c
@@ -373,12 +373,14 @@ mymain(void)
     DO_TEST_PARSE_AND_CHECK_FORMAT("127.2", "127.2.0.0", AF_INET, false);
     DO_TEST_PARSE_AND_CHECK_FORMAT("1.2.3", "1.2.0.3", AF_INET, true);
     DO_TEST_PARSE_AND_CHECK_FORMAT("1.2.3", "1.2.3.0", AF_INET, false);
+    DO_TEST_PARSE_AND_CHECK_FORMAT("::ffff:a01:203", "::ffff:10.1.2.3", AF_INET6, true);
 
     DO_TEST_PARSE_AND_FORMAT("::1", AF_UNSPEC, true);
     DO_TEST_PARSE_AND_FORMAT("::1", AF_INET, false);
     DO_TEST_PARSE_AND_FORMAT("::1", AF_INET6, true);
     DO_TEST_PARSE_AND_FORMAT("::1", AF_UNIX, false);
     DO_TEST_PARSE_AND_FORMAT("::fffe:0:0", AF_UNSPEC, true);
+    DO_TEST_PARSE_AND_FORMAT("::ffff:10.1.2.3", AF_UNSPEC, true);
 
     /* tests that specify a network that should contain the range */
     DO_TEST_RANGE("192.168.122.1", "192.168.122.1", "192.168.122.1", 24, 1, true);
-- 
2.33.0