mirror of git://sourceware.org/git/glibc.git
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/* Test for BZ #16849. Verify that getaddrinfo correctly returns
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EAI_AGAIN error code if DNS query fails due to a network failure.
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <netdb.h>
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#include <support/check.h>
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/* Query getaddrinfo with various address families and verify that
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it returns EAI_AGAIN when DNS resolution fails. */
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static void
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query_host (const char *host_name)
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{
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int family[] = { AF_INET, AF_INET6, AF_UNSPEC };
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const char *family_names[] = { "AF_INET", "AF_INET6", "AF_UNSPEC" };
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for (int i = 0; i < 3; i++)
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{
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struct addrinfo hints =
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{
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.ai_socktype = 0,
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.ai_protocol = 0,
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.ai_family = family[i],
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.ai_flags = 0,
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};
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struct addrinfo *result;
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int res = getaddrinfo (host_name, NULL, &hints, &result);
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if (res != EAI_AGAIN)
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FAIL_EXIT1 ("getaddrinfo (%s, %s) returned %s, expected EAI_AGAIN",
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host_name, family_names[i], gai_strerror (res));
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}
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}
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static int
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do_test (void)
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{
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query_host ("site.example");
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return 0;
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}
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#include <support/test-driver.c>
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