mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 14:20:07 +00:00
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/* Test for grantpt, unlockpt error corner cases.
|
|
Copyright (C) 2001-2024 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 <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <support/check.h>
|
|
#include <support/temp_file.h>
|
|
#include <support/xunistd.h>
|
|
|
|
/* Test grantpt, unlockpt with a closed descriptor. */
|
|
static void
|
|
test_ebadf (void)
|
|
{
|
|
int fd, ret, err;
|
|
|
|
fd = posix_openpt (O_RDWR);
|
|
if (fd == -1)
|
|
FAIL_EXIT1 ("posix_openpt(O_RDWR) failed\nerrno %d (%m)\n", errno);
|
|
TEST_COMPARE (unlockpt (fd), 0);
|
|
|
|
xclose (fd);
|
|
ret = grantpt (fd);
|
|
err = errno;
|
|
if (ret != -1 || err != EBADF)
|
|
{
|
|
support_record_failure ();
|
|
printf ("grantpt(): expected: return = %d, errno = %d\n", -1, EBADF);
|
|
printf (" got: return = %d, errno = %d\n", ret, err);
|
|
}
|
|
|
|
TEST_COMPARE (unlockpt (fd), -1);
|
|
TEST_COMPARE (errno, EBADF);
|
|
}
|
|
|
|
/* Test grantpt, unlockpt on a regular file. */
|
|
static void
|
|
test_einval (void)
|
|
{
|
|
int fd, ret, err;
|
|
|
|
fd = create_temp_file ("tst-grantpt-", NULL);
|
|
TEST_VERIFY_EXIT (fd >= 0);
|
|
|
|
ret = grantpt (fd);
|
|
err = errno;
|
|
if (ret != -1 || err != EINVAL)
|
|
{
|
|
support_record_failure ();
|
|
printf ("grantpt(): expected: return = %d, errno = %d\n", -1, EINVAL);
|
|
printf (" got: return = %d, errno = %d\n", ret, err);
|
|
}
|
|
|
|
TEST_COMPARE (unlockpt (fd), -1);
|
|
TEST_COMPARE (errno, EINVAL);
|
|
|
|
xclose (fd);
|
|
}
|
|
|
|
/* Test grantpt, unlockpt on a non-ptmx pseudo-terminal. */
|
|
static void
|
|
test_not_ptmx (void)
|
|
{
|
|
int ptmx = posix_openpt (O_RDWR);
|
|
TEST_VERIFY_EXIT (ptmx >= 0);
|
|
TEST_COMPARE (grantpt (ptmx), 0);
|
|
TEST_COMPARE (unlockpt (ptmx), 0);
|
|
|
|
/* A second unlock succeeds as well. */
|
|
TEST_COMPARE (unlockpt (ptmx), 0);
|
|
|
|
const char *name = ptsname (ptmx);
|
|
TEST_VERIFY_EXIT (name != NULL);
|
|
int pts = open (name, O_RDWR | O_NOCTTY);
|
|
TEST_VERIFY_EXIT (pts >= 0);
|
|
|
|
TEST_COMPARE (grantpt (pts), -1);
|
|
TEST_COMPARE (errno, EINVAL);
|
|
|
|
TEST_COMPARE (unlockpt (pts), -1);
|
|
TEST_COMPARE (errno, EINVAL);
|
|
|
|
xclose (pts);
|
|
xclose (ptmx);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
test_ebadf ();
|
|
test_einval ();
|
|
test_not_ptmx ();
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|