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49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* Test for fdopen memory leak without SEEK_END support (bug 31840).
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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 <errno.h>
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#include <fcntl.h>
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#include <mcheck.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <support/check.h>
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#include <support/xunistd.h>
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#include <unistd.h>
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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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/* This file is special because it is seekable, but only
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with SEEK_SET, not SEEK_END. */
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int fd = open ("/proc/self/mem", O_RDWR);
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if (fd < 0)
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FAIL_UNSUPPORTED ("/proc/self/mem not found: %m");
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FILE *fp = fdopen (fd, "a");
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/* The fdopen call should have failed because it tried to use
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SEEK_END. */
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TEST_VERIFY (fp == NULL);
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TEST_COMPARE (errno, EINVAL);
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xclose (fd);
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return 0;
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}
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#include <support/test-driver.c>
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