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/* Test for fdopen memory leak without SEEK_END support (bug 31840).
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <mcheck.h>
#include <stddef.h>
#include <stdio.h>
#include <support/check.h>
#include <support/xunistd.h>
#include <unistd.h>
static int
do_test (void)
{
mtrace ();
/* This file is special because it is seekable, but only
with SEEK_SET, not SEEK_END. */
int fd = open ("/proc/self/mem", O_RDWR);
if (fd < 0)
FAIL_UNSUPPORTED ("/proc/self/mem not found: %m");
FILE *fp = fdopen (fd, "a");
/* The fdopen call should have failed because it tried to use
SEEK_END. */
TEST_VERIFY (fp == NULL);
TEST_COMPARE (errno, EINVAL);
xclose (fd);
return 0;
}
#include <support/test-driver.c>
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