There are two standards how IPv4 address in IPv6 can be expressed: ::10.1.2.3 ::ffff:10.1.2.3 The former is obsolete and the latter should be used instead [1].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. 1: https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.5.1 Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx> --- tests/sockettest.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tests/sockettest.c b/tests/sockettest.c index 332def2c93..2a35b6a829 100644 --- a/tests/sockettest.c +++ b/tests/sockettest.c @@ -371,12 +371,14 @@ 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); -- 2.34.1