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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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/* Test for resource leaks in closedir.
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Copyright (C) 2024 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 <fcntl.h>
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#include <limits.h>
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#include <mcheck.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <support/check.h>
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#include <support/descriptors.h>
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#include <support/readdir.h>
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#include <support/xdirent.h>
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#include <support/xunistd.h>
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static void
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one_test (enum support_readdir_op op, unsigned int read_limit,
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bool use_fdopendir)
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{
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struct support_descriptors *fds = support_descriptors_list ();
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struct support_dirent e = { 0, };
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DIR *stream;
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if (use_fdopendir)
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{
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int fd = xopen (".", O_RDONLY | O_DIRECTORY, 0);
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stream = xfdopendir (fd);
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/* The descriptor fd will be closed by closedir below. */
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}
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else
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stream = xopendir (".");
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for (unsigned int i = 0; i < read_limit; ++i)
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if (!support_readdir (stream, op, &e))
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break;
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TEST_COMPARE (closedir (stream), 0);
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free (e.d_name);
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support_descriptors_check (fds);
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support_descriptors_free (fds);
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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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mtrace ();
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for (int use_fdopendir = 0; use_fdopendir < 2; ++use_fdopendir)
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{
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/* No reads, operation does not matter. */
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one_test (SUPPORT_READDIR, 0, use_fdopendir);
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for (enum support_readdir_op op = 0; op <= support_readdir_op_last();
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++op)
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{
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one_test (op, 1, use_fdopendir);
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one_test (op, UINT_MAX, use_fdopendir); /* Unlimited reads. */
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}
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}
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return 0;
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}
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#include <support/test-driver.c>
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