mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* 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>
|