{"id":2230367,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2230367/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/patch/20260429170104.2378474-2-pemensik@redhat.com/","project":{"id":41,"url":"http://patchwork.ozlabs.org/api/1.1/projects/41/?format=json","name":"GNU C Library","link_name":"glibc","list_id":"libc-alpha.sourceware.org","list_email":"libc-alpha@sourceware.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260429170104.2378474-2-pemensik@redhat.com>","date":"2026-04-29T17:00:49","name":"[v7,2/2] resolv: Create test for ipv4 and ipv6 resolv.conf flags","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"24c87b6d3b99102d88a909d087830caa54c21880","submitter":{"id":86150,"url":"http://patchwork.ozlabs.org/api/1.1/people/86150/?format=json","name":"Petr Menšík","email":"pemensik@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/glibc/patch/20260429170104.2378474-2-pemensik@redhat.com/mbox/","series":[{"id":502111,"url":"http://patchwork.ozlabs.org/api/1.1/series/502111/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/list/?series=502111","date":"2026-04-29T17:00:48","name":"[v7,1/2] resolv: implement ipv4+ipv6 flags in resolv.conf (bug 30544)","version":7,"mbox":"http://patchwork.ozlabs.org/series/502111/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2230367/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2230367/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","libc-alpha@sourceware.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","libc-alpha@sourceware.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=C8fMlEA5;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org\n (client-ip=38.145.34.32; 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charset=UTF-8","Content-Transfer-Encoding":"8bit","X-BeenThere":"libc-alpha@sourceware.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Libc-alpha mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org"},"content":"Test newly added resolv.conf options ipv4 and ipv6. Derived from noaaa\ntest. Count query counts after the test, because it varies depending on\nused flags.\n\nFixed ai re-initialization on each attempt.\n\nSigned-off-by: Petr Menšík \n---\n resolv/Makefile | 2 +\n resolv/tst-resolv-ipv4-ipv6.c | 639 ++++++++++++++++++++++++++++++++++\n 2 files changed, 641 insertions(+)\n create mode 100644 resolv/tst-resolv-ipv4-ipv6.c","diff":"diff --git a/resolv/Makefile b/resolv/Makefile\nindex 971608eff5..841720cf25 100644\n--- a/resolv/Makefile\n+++ b/resolv/Makefile\n@@ -116,6 +116,7 @@ tests += \\\n tst-resolv-byaddr \\\n tst-resolv-dns-section \\\n tst-resolv-edns \\\n+ tst-resolv-ipv4-ipv6 \\\n tst-resolv-invalid-cname \\\n tst-resolv-invalid-ptr \\\n tst-resolv-network \\\n@@ -311,6 +312,7 @@ $(objpfx)tst-resolv-res_init-multi: $(objpfx)libresolv.so \\\n $(shared-thread-library)\n $(objpfx)tst-resolv-res_init-thread: $(objpfx)libresolv.so \\\n $(shared-thread-library)\n+$(objpfx)tst-resolv-ipv4-ipv6: $(objpfx)libresolv.so $(shared-thread-library)\n $(objpfx)tst-resolv-invalid-cname: $(objpfx)libresolv.so \\\n $(shared-thread-library)\n $(objpfx)tst-resolv-invalid-ptr: $(objpfx)libresolv.so \\\ndiff --git a/resolv/tst-resolv-ipv4-ipv6.c b/resolv/tst-resolv-ipv4-ipv6.c\nnew file mode 100644\nindex 0000000000..d375a0989e\n--- /dev/null\n+++ b/resolv/tst-resolv-ipv4-ipv6.c\n@@ -0,0 +1,639 @@\n+/* Test RES_IPV4 and RES_IPV6 resolver option.\n+ Copyright (C) 2025 Free Software Foundation, Inc.\n+ This file is part of the GNU C Library.\n+\n+ The GNU C Library is free software; you can redistribute it and/or\n+ modify it under the terms of the GNU Lesser General Public\n+ License as published by the Free Software Foundation; either\n+ version 2.1 of the License, or (at your option) any later version.\n+\n+ The GNU C Library is distributed in the hope that it will be useful,\n+ but WITHOUT ANY WARRANTY; without even the implied warranty of\n+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n+ Lesser General Public License for more details.\n+\n+ You should have received a copy of the GNU Lesser General Public\n+ License along with the GNU C Library; if not, see\n+ . */\n+\n+#include \n+#include \n+#include \n+#include \n+#include \n+#include \n+#include \n+#include \n+\n+/* Used to keep track of the number of queries. */\n+static volatile unsigned int queries;\n+\n+static void\n+response (const struct resolv_response_context *ctx,\n+ struct resolv_response_builder *b,\n+ const char *qname, uint16_t qclass, uint16_t qtype)\n+{\n+ /* Each test should only send one query. */\n+ ++queries;\n+ if (queries < 1 || queries > 2)\n+ FAIL_EXIT1 (\"Unexpected number of queries %d on %s\\n\", queries, qname);\n+ TEST_COMPARE (qclass, C_IN);\n+\n+ /* The only other query type besides A is PTR. */\n+ if (qtype != T_A && qtype != T_AAAA)\n+ TEST_COMPARE (qtype, T_PTR);\n+\n+ int an, ns, ar;\n+ char *tail;\n+ if (sscanf (qname, \"an%d.ns%d.ar%d.%ms\", &an, &ns, &ar, &tail) != 4)\n+ FAIL_EXIT1 (\"invalid QNAME: %s\\n\", qname);\n+ TEST_COMPARE_STRING (tail, \"example\");\n+ free (tail);\n+\n+ if (an < 0 || ns < 0 || ar < 0)\n+ {\n+ struct resolv_response_flags flags = { .rcode = NXDOMAIN, };\n+ resolv_response_init (b, flags);\n+ resolv_response_add_question (b, qname, qclass, qtype);\n+ return;\n+ }\n+\n+ struct resolv_response_flags flags = {};\n+ resolv_response_init (b, flags);\n+ resolv_response_add_question (b, qname, qclass, qtype);\n+\n+ resolv_response_section (b, ns_s_an);\n+ for (int i = 0; i < an; ++i)\n+ {\n+ resolv_response_open_record (b, qname, qclass, qtype, 60);\n+ switch (qtype)\n+ {\n+ case T_A:\n+ {\n+ char ipv4[4] = {192, 0, 2, i + 1};\n+ resolv_response_add_data (b, &ipv4, sizeof (ipv4));\n+ }\n+ break;\n+\n+ case T_AAAA:\n+ { \n+ char addr_ipv6[16] =\n+ { 0x20, 1, 0x0d, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, i + 1 };\n+ resolv_response_add_data (b, addr_ipv6, sizeof (addr_ipv6));\n+ }\n+ break;\n+\n+ case T_PTR:\n+ {\n+ char *name = xasprintf (\"ptr-%d\", i);\n+ resolv_response_add_name (b, name);\n+ free (name);\n+ }\n+ break;\n+ }\n+ resolv_response_close_record (b);\n+ }\n+\n+ resolv_response_section (b, ns_s_ns);\n+ for (int i = 0; i < ns; ++i)\n+ {\n+ resolv_response_open_record (b, qname, qclass, T_NS, 60);\n+ char *name = xasprintf (\"ns%d.example.net\", i);\n+ resolv_response_add_name (b, name);\n+ free (name);\n+ resolv_response_close_record (b);\n+ }\n+\n+ resolv_response_section (b, ns_s_ar);\n+ int addr = 1;\n+ for (int i = 0; i < ns; ++i)\n+ {\n+ char *name = xasprintf (\"ns%d.example.net\", i);\n+ for (int j = 0; j < ar; ++j)\n+ {\n+ resolv_response_open_record (b, name, qclass, T_A, 60);\n+ char ipv4[4] = {192, 0, 2, addr};\n+ resolv_response_add_data (b, &ipv4, sizeof (ipv4));\n+ resolv_response_close_record (b);\n+\n+ resolv_response_open_record (b, name, qclass, T_AAAA, 60);\n+ char ipv6[16]\n+ = {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, addr};\n+ resolv_response_add_data (b, &ipv6, sizeof (ipv6));\n+ resolv_response_close_record (b);\n+\n+ ++addr;\n+ }\n+ free (name);\n+ }\n+}\n+\n+/* Number of modes. Lowest bit encodes *n* function vs implicit _res\n+ argument. The mode numbers themselves are arbitrary. */\n+enum { mode_count = 8 };\n+\n+/* res_send-like modes do not perform error translation. */\n+enum { first_send_mode = 6 };\n+\n+static int\n+libresolv_query (unsigned int mode, const char *qname, uint16_t qtype,\n+ unsigned char *buf, size_t buflen)\n+{\n+ int saved_errno = errno;\n+\n+ TEST_VERIFY_EXIT (mode < mode_count);\n+\n+ switch (mode)\n+ {\n+ case 0:\n+ return res_query (qname, C_IN, qtype, buf, buflen);\n+ case 1:\n+ return res_nquery (&_res, qname, C_IN, qtype, buf, buflen);\n+ case 2:\n+ return res_search (qname, C_IN, qtype, buf, buflen);\n+ case 3:\n+ return res_nsearch (&_res, qname, C_IN, qtype, buf, buflen);\n+ case 4:\n+ return res_querydomain (qname, \"\", C_IN, qtype, buf, buflen);\n+ case 5:\n+ return res_nquerydomain (&_res, qname, \"\", C_IN, qtype, buf, buflen);\n+ case 6:\n+ {\n+ unsigned char querybuf[512];\n+ int ret = res_mkquery (QUERY, qname, C_IN, qtype,\n+ NULL, 0, NULL, querybuf, sizeof (querybuf));\n+ TEST_VERIFY_EXIT (ret > 0);\n+ errno = saved_errno;\n+ return res_send (querybuf, ret, buf, buflen);\n+ }\n+ case 7:\n+ {\n+ unsigned char querybuf[512];\n+ int ret = res_nmkquery (&_res, QUERY, qname, C_IN, qtype,\n+ NULL, 0, NULL, querybuf, sizeof (querybuf));\n+ TEST_VERIFY_EXIT (ret > 0);\n+ errno = saved_errno;\n+ return res_nsend (&_res, querybuf, ret, buf, buflen);\n+ }\n+ }\n+ __builtin_unreachable ();\n+}\n+\n+/* Common parts should not change behaviour whatever flag is used. */\n+static int\n+do_test_common(void)\n+{\n+ queries = 0;\n+\n+ /* getaddrinfo checks with one address. */\n+ struct addrinfo *ai = NULL;\n+ int ret;\n+ ret = getaddrinfo (\"an1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an1.ns2.ar1.example (AF_INET)\", ai, ret,\n+ \"address: STREAM/TCP 192.0.2.1 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+\n+ queries = 0;\n+ ret = getaddrinfo (\"an1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET6,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an1.ns2.ar1.example (AF_INET6)\", ai, ret,\n+ \"address: STREAM/TCP 2001:db8::1 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+ queries = 0;\n+\n+ /* getaddrinfo checks with three addresses. */\n+ ret = getaddrinfo (\"an3.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an3.ns2.ar1.example (AF_INET)\", ai, ret,\n+ \"address: STREAM/TCP 192.0.2.1 80\\n\"\n+ \"address: STREAM/TCP 192.0.2.2 80\\n\"\n+ \"address: STREAM/TCP 192.0.2.3 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+ queries = 0;\n+ ret = getaddrinfo (\"an3.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET6,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an3.ns2.ar1.example (AF_INET6)\", ai, ret,\n+ \"address: STREAM/TCP 2001:db8::1 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::2 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::3 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+ queries = 0;\n+\n+ return ret;\n+}\n+\n+/* test IPV4 flag */\n+static int\n+do_test_ipv4 (int options)\n+{\n+ int ret;\n+ struct addrinfo *ai = NULL;\n+\n+ _res.options = options;\n+ queries = 0;\n+\n+ ret = do_test_common();\n+\n+ /* getaddrinfo checks with one address. */\n+ ret = getaddrinfo (\"an1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an1.ns2.ar1.example (AF_UNSPEC) ipv4\", ai, ret,\n+ \"address: STREAM/TCP 192.0.2.1 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+\n+ queries = 0;\n+ ret = getaddrinfo (\"an3.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an3.ns2.ar1.example (AF_UNSPEC) ipv4\", ai, ret,\n+ \"address: STREAM/TCP 192.0.2.1 80\\n\"\n+ \"address: STREAM/TCP 192.0.2.2 80\\n\"\n+ \"address: STREAM/TCP 192.0.2.3 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+ queries = 0;\n+\n+ return ret;\n+}\n+\n+static int\n+do_test_ipv6 (int options)\n+{\n+ int ret;\n+ struct addrinfo *ai = NULL;\n+\n+ _res.options = options;\n+ queries = 0;\n+\n+ ret = do_test_common();\n+\n+ /* getaddrinfo checks with one address. */\n+ ret = getaddrinfo (\"an1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an1.ns2.ar1.example (AF_UNSPEC) ipv6\", ai, ret,\n+ \"address: STREAM/TCP 2001:db8::1 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+ queries = 0;\n+\n+ /* getaddrinfo checks with three addresses. */\n+ ret = getaddrinfo (\"an3.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an3.ns2.ar1.example (AF_UNSPEC) ipv6\", ai, ret,\n+ \"address: STREAM/TCP 2001:db8::1 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::2 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::3 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 1);\n+ queries = 0;\n+\n+ return ret;\n+}\n+\n+/* When both flags are applied */\n+static int\n+do_test_ipv4_ipv6 (int options)\n+{\n+ int ret;\n+ struct addrinfo *ai = NULL;\n+\n+ _res.options = options;\n+ queries = 0;\n+\n+ ret = do_test_common();\n+\n+ /* getaddrinfo checks with one address. */\n+ ret = getaddrinfo (\"an1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an1.ns2.ar1.example (AF_UNSPEC) ipv4 ipv6\", ai, ret,\n+ \"address: STREAM/TCP 192.0.2.1 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::1 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 2);\n+ queries = 0;\n+\n+ /* getaddrinfo checks with three addresses. */\n+ ret = getaddrinfo (\"an3.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an3.ns2.ar1.example (AF_UNSPEC) ipv4 ipv6\", ai, ret,\n+ \"address: STREAM/TCP 192.0.2.1 80\\n\"\n+ \"address: STREAM/TCP 192.0.2.2 80\\n\"\n+ \"address: STREAM/TCP 192.0.2.3 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::1 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::2 80\\n\"\n+ \"address: STREAM/TCP 2001:db8::3 80\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ TEST_COMPARE (queries, 2);\n+ queries = 0;\n+\n+ return ret;\n+}\n+\n+static int\n+do_test (void)\n+{\n+ int baseoptions;\n+ int ret;\n+ struct addrinfo *ai = NULL;\n+ struct resolv_test *obj = resolv_test_start\n+ ((struct resolv_redirect_config)\n+ {\n+ .response_callback = response\n+ });\n+\n+ baseoptions = _res.options;\n+\n+ ret = do_test_ipv4(baseoptions | RES_IPV4);\n+ ret = do_test_ipv6(baseoptions | RES_IPV6);\n+ ret = do_test_ipv4_ipv6(baseoptions);\n+ ret = do_test_ipv4_ipv6(baseoptions | RES_IPV4 | RES_IPV6);\n+\n+ /* getaddrinfo checks with no address. */\n+ ret = getaddrinfo (\"an0.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an0.ns2.ar1.example (AF_INET)\", ai, ret,\n+ \"error: No address associated with hostname\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ queries = 0;\n+ ret = getaddrinfo (\"an0.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET6,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an0.ns2.ar1.example (AF_INET6)\", ai, ret,\n+ \"error: No address associated with hostname\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ queries = 0;\n+ ret = getaddrinfo (\"an0.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an-1.ns2.ar1.example (AF_UNSPEC)\", ai, ret,\n+ \"error: No address associated with hostname\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ queries = 0;\n+\n+ /* getaddrinfo checks with NXDOMAIN. */\n+ ret = getaddrinfo (\"an-1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an-1.ns2.ar1.example (AF_INET)\", ai, ret,\n+ \"error: Name or service not known\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ queries = 0;\n+ ret = getaddrinfo (\"an-1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_INET6,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an-1.ns2.ar1.example (AF_INET6)\", ai, ret,\n+ \"error: Name or service not known\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ queries = 0;\n+ ret = getaddrinfo (\"an-1.ns2.ar1.example\", \"80\",\n+ &(struct addrinfo)\n+ {\n+ .ai_family = AF_UNSPEC,\n+ .ai_socktype = SOCK_STREAM,\n+ }, &ai);\n+ check_addrinfo (\"an-1.ns2.ar1.example (AF_UNSPEC)\", ai, ret,\n+ \"error: Name or service not known\\n\");\n+ freeaddrinfo (ai);\n+ ai = NULL;\n+ queries = 0;\n+\n+ for (unsigned int mode = 0; mode < mode_count; ++mode)\n+ {\n+ unsigned char *buf;\n+ int ret;\n+\n+ /* Response for A. */\n+ buf = malloc (512);\n+ ret = libresolv_query (mode, \"an1.ns2.ar1.example\", T_A, buf, 512);\n+ TEST_VERIFY_EXIT (ret > 0);\n+ check_dns_packet (\"an1.ns2.ar1.example A\", buf, ret,\n+ \"name: an1.ns2.ar1.example\\n\"\n+ \"address: 192.0.2.1\\n\");\n+ free (buf);\n+ queries = 0;\n+\n+ /* NODATA response for A. */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an0.ns2.ar1.example\", T_A, buf, 512);\n+ if (mode < first_send_mode)\n+ {\n+ TEST_COMPARE (ret, -1);\n+ TEST_COMPARE (errno, 0);\n+ TEST_COMPARE (h_errno, NO_ADDRESS);\n+ }\n+ else\n+ {\n+ TEST_VERIFY_EXIT (ret > 0);\n+ TEST_COMPARE (((HEADER *)buf)->rcode, 0);\n+ check_dns_packet (\"an1.ns2.ar1.example A\", buf, ret,\n+ \"name: an0.ns2.ar1.example\\n\");\n+ }\n+ free (buf);\n+ queries = 0;\n+\n+ /* NXDOMAIN response for A. */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an-1.ns2.ar1.example\", T_A, buf, 512);\n+ if (mode < first_send_mode)\n+ {\n+ TEST_COMPARE (ret, -1);\n+ TEST_COMPARE (errno, 0);\n+ TEST_COMPARE (h_errno, HOST_NOT_FOUND);\n+ }\n+ else\n+ {\n+ TEST_VERIFY_EXIT (ret > 0);\n+ TEST_COMPARE (((HEADER *)buf)->rcode, NXDOMAIN);\n+ check_dns_packet (\"an1.ns2.ar1.example A\", buf, ret,\n+ \"name: an-1.ns2.ar1.example\\n\");\n+ }\n+ free (buf);\n+ queries = 0;\n+\n+ /* Response for PTR. */\n+ buf = malloc (512);\n+ ret = libresolv_query (mode, \"an1.ns2.ar1.example\", T_PTR, buf, 512);\n+ TEST_VERIFY_EXIT (ret > 0);\n+ check_dns_packet (\"an1.ns2.ar1.example PTR\", buf, ret,\n+ \"name: an1.ns2.ar1.example\\n\"\n+ \"data: an1.ns2.ar1.example PTR ptr-0\\n\");\n+ free (buf);\n+ queries = 0;\n+\n+ /* NODATA response for PTR. */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an0.ns2.ar1.example\", T_PTR, buf, 512);\n+ if (mode < first_send_mode)\n+ {\n+ TEST_COMPARE (ret, -1);\n+ TEST_COMPARE (errno, 0);\n+ TEST_COMPARE (h_errno, NO_ADDRESS);\n+ }\n+ else\n+ {\n+ TEST_VERIFY_EXIT (ret > 0);\n+ TEST_COMPARE (((HEADER *)buf)->rcode, 0);\n+ check_dns_packet (\"an1.ns2.ar1.example PTR\", buf, ret,\n+ \"name: an0.ns2.ar1.example\\n\");\n+ }\n+ free (buf);\n+ queries = 0;\n+\n+ /* NXDOMAIN response for PTR. */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an-1.ns2.ar1.example\", T_PTR, buf, 512);\n+ if (mode < first_send_mode)\n+ {\n+ TEST_COMPARE (ret, -1);\n+ TEST_COMPARE (errno, 0);\n+ TEST_COMPARE (h_errno, HOST_NOT_FOUND);\n+ }\n+ else\n+ {\n+ TEST_VERIFY_EXIT (ret > 0);\n+ TEST_COMPARE (((HEADER *)buf)->rcode, NXDOMAIN);\n+ check_dns_packet (\"an1.ns2.ar1.example PTR\", buf, ret,\n+ \"name: an-1.ns2.ar1.example\\n\");\n+ }\n+ free (buf);\n+ queries = 0;\n+\n+ /* NODATA response for AAAA. */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an1.ns2.ar1.example\", T_AAAA, buf, 512);\n+ TEST_VERIFY_EXIT (ret > 0);\n+ check_dns_packet (\"an1.ns2.ar1.example AAAA\", buf, ret,\n+ \"name: an1.ns2.ar1.example\\n\"\n+ \"address: 2001:db8::1\\n\");\n+ TEST_VERIFY_EXIT (ret > 0);\n+ free (buf);\n+ queries = 0;\n+\n+ /* NODATA response for AAAA (original is already NODATA). */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an0.ns2.ar1.example\", T_AAAA, buf, 512);\n+ if (mode < first_send_mode)\n+ {\n+ TEST_COMPARE (ret, -1);\n+ TEST_COMPARE (errno, 0);\n+ TEST_COMPARE (h_errno, NO_ADDRESS);\n+ }\n+ else\n+ {\n+ TEST_VERIFY_EXIT (ret > 0);\n+ TEST_COMPARE (((HEADER *)buf)->rcode, 0);\n+ check_dns_packet (\"an0.ns2.ar1.example A\", buf, ret,\n+ \"name: an0.ns2.ar1.example\\n\");\n+ }\n+ free (buf);\n+ queries = 0;\n+\n+ /* NXDOMAIN response. */\n+ buf = malloc (512);\n+ errno = 0;\n+ ret = libresolv_query (mode, \"an-1.ns2.ar1.example\", T_AAAA, buf, 512);\n+ if (mode < first_send_mode)\n+ {\n+ TEST_COMPARE (ret, -1);\n+ TEST_COMPARE (errno, 0);\n+ TEST_COMPARE (h_errno, HOST_NOT_FOUND);\n+ }\n+ else\n+ {\n+ TEST_VERIFY_EXIT (ret > 0);\n+ TEST_COMPARE (((HEADER *)buf)->rcode, NXDOMAIN);\n+ check_dns_packet (\"an-1.ns2.ar1.example A\", buf, ret,\n+ \"name: an-1.ns2.ar1.example\\n\");\n+ }\n+ free (buf);\n+ queries = 0;\n+ }\n+\n+ resolv_test_end (obj);\n+\n+ return 0;\n+}\n+\n+#include \n","prefixes":["v7","2/2"]}