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70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/* Test host lookup with double dots at the end, [BZ #16469].
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Copyright (C) 2014-2023 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 <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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static int
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test (void)
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{
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static char host1[] = "localhost..";
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static char host2[] = "www.gnu.org..";
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static char *hosts[] = { host1, host2 };
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int i;
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int pass = 0;
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for (i = 0; i < sizeof (hosts) / sizeof (*hosts); i++)
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{
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char *host = hosts[i];
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size_t len = strlen (host);
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struct addrinfo *ai;
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/* If the name doesn't resolve with a single dot at the
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end, skip it. */
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host[len-1] = 0;
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if (getaddrinfo (host, NULL, NULL, &ai) != 0)
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{
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printf ("resolving \"%s\" failed, skipping this hostname\n", host);
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continue;
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}
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printf ("resolving \"%s\" worked, proceeding to test\n", host);
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freeaddrinfo (ai);
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/* If it resolved with a single dot, check that it doesn't with
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a second trailing dot. */
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host[len-1] = '.';
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if (getaddrinfo (host, NULL, NULL, &ai) == 0)
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{
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printf ("resolving \"%s\" worked, test failed\n", host);
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return 1;
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}
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printf ("resolving \"%s\" failed, test passed\n", host);
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pass = 1;
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}
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/* We want at least one successful name resolution for the test to
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succeed. */
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return pass ? 0 : 2;
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}
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#define TEST_FUNCTION test ()
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#include "../test-skeleton.c"
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