45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
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/* Test to verify that overlong hostname is rejected by clnt_create
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and doesn't cause a buffer overflow (bug 22542).
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Copyright (C) 2022 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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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <rpc/clnt.h>
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#include <string.h>
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#include <support/check.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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static int
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do_test (void)
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{
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/* Create an arbitrary hostname that's longer than fits in sun_path. */
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char name [sizeof ((struct sockaddr_un*)0)->sun_path * 2];
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memset (name, 'x', sizeof name - 1);
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name [sizeof name - 1] = '\0';
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errno = 0;
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CLIENT *clnt = clnt_create (name, 0, 0, "unix");
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TEST_VERIFY (clnt == NULL);
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TEST_COMPARE (errno, EINVAL);
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return 0;
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}
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#include <support/test-driver.c>
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