diff options
Diffstat (limited to 'resolv/tst-resolv-basic.c')
| -rw-r--r-- | resolv/tst-resolv-basic.c | 79 |
1 files changed, 64 insertions, 15 deletions
diff --git a/resolv/tst-resolv-basic.c b/resolv/tst-resolv-basic.c index 3dfa1657f5..64eedbbd81 100644 --- a/resolv/tst-resolv-basic.c +++ b/resolv/tst-resolv-basic.c @@ -22,6 +22,7 @@ #include <string.h> #include <support/check.h> #include <support/check_nss.h> +#include <support/format_nss.h> #include <support/resolv_test.h> #include <support/support.h> @@ -204,6 +205,68 @@ check_ai (const char *name, const char *service, expected); } +/* Test for bug 21295: getaddrinfo used to discard address information + instead of merging it. */ +static void +test_bug_21295 (void) +{ + /* The address order is unpredictable. There are two factors which + contribute to that: The stub resolver does not perform proper + response matching for A/AAAA queries (an A response could be + associated with an AAAA query and vice versa), and without + namespaces, system configuration could affect address + ordering. */ + for (int do_tcp = 0; do_tcp < 2; ++do_tcp) + { + const struct addrinfo hints = + { + .ai_family = AF_INET6, + .ai_socktype = SOCK_STREAM, + .ai_flags = AI_V4MAPPED | AI_ALL, + }; + const char *qname; + if (do_tcp) + qname = "t.www.example"; + else + qname = "www.example"; + struct addrinfo *ai = NULL; + int ret = getaddrinfo (qname, "80", &hints, &ai); + TEST_VERIFY_EXIT (ret == 0); + + const char *expected_a; + const char *expected_b; + if (do_tcp) + { + expected_a = "flags: AI_V4MAPPED AI_ALL\n" + "address: STREAM/TCP 2001:db8::3 80\n" + "address: STREAM/TCP ::ffff:192.0.2.19 80\n"; + expected_b = "flags: AI_V4MAPPED AI_ALL\n" + "address: STREAM/TCP ::ffff:192.0.2.19 80\n" + "address: STREAM/TCP 2001:db8::3 80\n"; + } + else + { + expected_a = "flags: AI_V4MAPPED AI_ALL\n" + "address: STREAM/TCP 2001:db8::1 80\n" + "address: STREAM/TCP ::ffff:192.0.2.17 80\n"; + expected_b = "flags: AI_V4MAPPED AI_ALL\n" + "address: STREAM/TCP ::ffff:192.0.2.17 80\n" + "address: STREAM/TCP 2001:db8::1 80\n"; + } + + char *actual = support_format_addrinfo (ai, ret); + if (!(strcmp (actual, expected_a) == 0 + || strcmp (actual, expected_b) == 0)) + { + support_record_failure (); + printf ("error: %s: unexpected response (TCP: %d):\n%s\n", + __func__, do_tcp, actual); + } + free (actual); + freeaddrinfo (ai); + } +} + static int do_test (void) { @@ -398,21 +461,7 @@ do_test (void) check_ai ("t.nxdomain.example", "80", AF_INET6, "error: Name or service not known\n"); - /* Test for bug 21295. */ - check_ai_hints ("www.example", "80", - (struct addrinfo) { .ai_family = AF_INET6, - .ai_socktype = SOCK_STREAM, - .ai_flags = AI_V4MAPPED | AI_ALL, }, - "flags: AI_V4MAPPED AI_ALL\n" - "address: STREAM/TCP 2001:db8::1 80\n" - "address: STREAM/TCP ::ffff:192.0.2.17 80\n"); - check_ai_hints ("t.www.example", "80", - (struct addrinfo) { .ai_family = AF_INET6, - .ai_socktype = SOCK_STREAM, - .ai_flags = AI_V4MAPPED | AI_ALL, }, - "flags: AI_V4MAPPED AI_ALL\n" - "address: STREAM/TCP 2001:db8::3 80\n" - "address: STREAM/TCP ::ffff:192.0.2.19 80\n"); + test_bug_21295 (); resolv_test_end (aux); |