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authorFlorian Weimer <fweimer@redhat.com>2016-12-31 14:06:16 +0100
committerFlorian Weimer <fweimer@redhat.com>2016-12-31 18:52:32 +0100
commit5840c75c2d6a9b980d6789f2ca7d47a9fa067263 (patch)
tree3eb4c28827ba0901f9ae7396d841c396c393805e /resolv/tst-res_use_inet6.c
parentf47ae5186624e5bb3a2d2b25be742b90a1eee3cd (diff)
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resolv: Add beginnings of a libresolv test suite
Diffstat (limited to 'resolv/tst-res_use_inet6.c')
-rw-r--r--resolv/tst-res_use_inet6.c201
1 files changed, 201 insertions, 0 deletions
diff --git a/resolv/tst-res_use_inet6.c b/resolv/tst-res_use_inet6.c
new file mode 100644
index 0000000000..5ed0ad0dc4
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+++ b/resolv/tst-res_use_inet6.c
@@ -0,0 +1,201 @@
+/* Basic functionality tests for inet6 option processing.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <netdb.h>
+#include <resolv.h>
+#include <string.h>
+#include <support/check_nss.h>
+#include <support/resolv_test.h>
+#include <support/xthread.h>
+
+static void
+response (const struct resolv_response_context *ctx,
+ struct resolv_response_builder *b,
+ const char *qname, uint16_t qclass, uint16_t qtype)
+{
+ bool include_both = strcmp (qname, "both.example") == 0;
+ bool include_a = qtype == T_A || include_both;
+ bool include_aaaa = qtype == T_AAAA || include_both;
+
+ resolv_response_init (b, (struct resolv_response_flags) {});
+ resolv_response_add_question (b, qname, qclass, qtype);
+ resolv_response_section (b, ns_s_an);
+ if (include_a)
+ {
+ char ipv4[4] = {192, 0, 2, 17};
+ resolv_response_open_record (b, qname, qclass, T_A, 0);
+ resolv_response_add_data (b, &ipv4, sizeof (ipv4));
+ resolv_response_close_record (b);
+ }
+ if (include_aaaa)
+ {
+ char ipv6[16]
+ = {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+ resolv_response_open_record (b, qname, qclass, T_AAAA, 0);
+ resolv_response_add_data (b, &ipv6, sizeof (ipv6));
+ resolv_response_close_record (b);
+ }
+}
+
+/* Test that getaddrinfo is not influenced by RES_USE_INET6. */
+static void
+test_gai (void)
+{
+ {
+ struct addrinfo hints =
+ {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_STREAM,
+ .ai_protocol = IPPROTO_TCP,
+ };
+ struct addrinfo *ai;
+ int ret = getaddrinfo ("www1.example", "80", &hints, &ai);
+ check_addrinfo ("getaddrinfo AF_UNSPEC www1.example", ai, ret,
+ "address: STREAM/TCP 192.0.2.17 80\n"
+ "address: STREAM/TCP 2001:db8::1 80\n");
+ if (ret == 0)
+ freeaddrinfo (ai);
+ ret = getaddrinfo ("both.example", "80", &hints, &ai);
+ /* Combined A/AAAA responses currently result in address
+ duplication. */
+ check_addrinfo ("getaddrinfo AF_UNSPEC both.example", ai, ret,
+ "address: STREAM/TCP 192.0.2.17 80\n"
+ "address: STREAM/TCP 192.0.2.17 80\n"
+ "address: STREAM/TCP 2001:db8::1 80\n"
+ "address: STREAM/TCP 2001:db8::1 80\n");
+ if (ret == 0)
+ freeaddrinfo (ai);
+ }
+ {
+ struct addrinfo hints =
+ {
+ .ai_family = AF_INET,
+ .ai_socktype = SOCK_STREAM,
+ .ai_protocol = IPPROTO_TCP,
+ };
+ struct addrinfo *ai;
+ int ret = getaddrinfo ("www1.example", "80", &hints, &ai);
+ check_addrinfo ("getaddrinfo AF_INET www1.example", ai, ret,
+ "address: STREAM/TCP 192.0.2.17 80\n");
+ if (ret == 0)
+ freeaddrinfo (ai);
+ ret = getaddrinfo ("both.example", "80", &hints, &ai);
+ check_addrinfo ("getaddrinfo AF_INET both.example", ai, ret,
+ "address: STREAM/TCP 192.0.2.17 80\n");
+ if (ret == 0)
+ freeaddrinfo (ai);
+ }
+ {
+ struct addrinfo hints =
+ {
+ .ai_family = AF_INET6,
+ .ai_socktype = SOCK_STREAM,
+ .ai_protocol = IPPROTO_TCP,
+ };
+ struct addrinfo *ai;
+ int ret = getaddrinfo ("www1.example", "80", &hints, &ai);
+ check_addrinfo ("getaddrinfo (AF_INET6)", ai, ret,
+ "address: STREAM/TCP 2001:db8::1 80\n");
+ if (ret == 0)
+ freeaddrinfo (ai);
+ ret = getaddrinfo ("both.example", "80", &hints, &ai);
+ check_addrinfo ("getaddrinfo AF_INET6 both.example", ai, ret,
+ "address: STREAM/TCP 2001:db8::1 80\n");
+ if (ret == 0)
+ freeaddrinfo (ai);
+ }
+}
+
+/* Test that gethostbyname2 is not influenced by RES_USE_INET6. */
+static void
+test_get2 (void)
+{
+ check_hostent ("gethostbyname2 AF_INET www1.example",
+ gethostbyname2 ("www1.example", AF_INET),
+ "name: www1.example\n"
+ "address: 192.0.2.17\n");
+ check_hostent ("gethostbyname2 AF_INET both.example",
+ gethostbyname2 ("both.example", AF_INET),
+ "name: both.example\n"
+ "address: 192.0.2.17\n");
+
+ check_hostent ("gethostbyname2 AF_INET6 www1.example",
+ gethostbyname2 ("www1.example", AF_INET6),
+ "name: www1.example\n"
+ "address: 2001:db8::1\n");
+ check_hostent ("gethostbyname2 AF_INET6 both.example",
+ gethostbyname2 ("both.example", AF_INET6),
+ "name: both.example\n"
+ "address: 2001:db8::1\n");
+}
+
+static void *
+threadfunc (void *ignored)
+{
+ struct resolv_test *obj = resolv_test_start
+ ((struct resolv_redirect_config)
+ {
+ .response_callback = response
+ });
+
+ check_hostent ("gethostbyname (\"www1.example\")",
+ gethostbyname ("www1.example"),
+ "name: www1.example\n"
+ "address: 192.0.2.17\n");
+ check_hostent ("gethostbyname (\"both.example\")",
+ gethostbyname ("both.example"),
+ "name: both.example\n"
+ "address: 192.0.2.17\n");
+ test_get2 ();
+ test_gai ();
+
+ _res.options |= RES_USE_INET6;
+ check_hostent ("gethostbyname (\"www1.example\")",
+ gethostbyname ("www1.example"),
+ "name: www1.example\n"
+ "address: 2001:db8::1\n");
+ check_hostent ("gethostbyname (\"both.example\")",
+ gethostbyname ("both.example"),
+ "name: both.example\n"
+ "address: 2001:db8::1\n");
+ test_get2 ();
+ test_gai ();
+
+ resolv_test_end (obj);
+
+ return NULL;
+}
+
+static int
+do_test (void)
+{
+ resolv_test_init ();
+
+ /* Attempt to run on a non-main thread first. */
+ {
+ pthread_t thr = xpthread_create (NULL, threadfunc, NULL);
+ xpthread_join (thr);
+ }
+
+ /* Try the main thread next. */
+ threadfunc (NULL);
+
+ return 0;
+}
+
+#include <support/test-driver.c>