mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 01:33:36 +08:00
ea75860813
Use libsupport convenience functions and macros instead of the old test-skeleton. Also add a new xdup() convenience wrapper function. Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/* Test for faccessat function.
|
|
Copyright (C) 2006-2024 Free Software Foundation, Inc.
|
|
Copyright The GNU Toolchain Authors.
|
|
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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <support/check.h>
|
|
#include <support/temp_file.h>
|
|
#include <support/test-driver.h>
|
|
#include <support/xdirent.h>
|
|
#include <support/xunistd.h>
|
|
|
|
static int dir_fd;
|
|
|
|
static void
|
|
prepare (int argc, char **argv)
|
|
{
|
|
dir_fd = xopen (support_create_temp_directory ("tst-faccessat."),
|
|
O_RDONLY | O_DIRECTORY, 0);
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
/* fdopendir takes over the descriptor, make a copy. */
|
|
int dupfd = xdup (dir_fd);
|
|
xlseek (dupfd, 0, SEEK_SET);
|
|
|
|
/* The directory should be empty save the . and .. files. */
|
|
DIR *dir = xfdopendir (dupfd);
|
|
|
|
struct dirent64 *d;
|
|
while ((d = xreaddir64 (dir)) != NULL)
|
|
if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
|
|
FAIL_EXIT1 ("temp directory contains file \"%s\"\n", d->d_name);
|
|
xclosedir (dir);
|
|
|
|
/* Try to create a file. */
|
|
int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
|
|
if (fd == -1)
|
|
{
|
|
if (errno == ENOSYS)
|
|
FAIL_UNSUPPORTED ("*at functions not supported");
|
|
|
|
FAIL_EXIT1 ("file creation failed");
|
|
}
|
|
xwrite (fd, "hello", 5);
|
|
puts ("file created");
|
|
|
|
/* Before closing the file, try using this file descriptor to open
|
|
another file. This must fail. */
|
|
TEST_VERIFY_EXIT (faccessat (fd, "should-not-work", F_OK, AT_EACCESS) == -1);
|
|
TEST_VERIFY_EXIT (errno == ENOTDIR);
|
|
|
|
xclose (fd);
|
|
|
|
TEST_VERIFY (faccessat (dir_fd, "some-file", F_OK, AT_EACCESS) == 0);
|
|
TEST_VERIFY (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS) == 0);
|
|
|
|
errno = 0;
|
|
if (faccessat (dir_fd, "some-file", X_OK, AT_EACCESS) != 0)
|
|
TEST_COMPARE (errno, EACCES);
|
|
else
|
|
FAIL ("faccessat unexpectedly succeeded\n");
|
|
|
|
if (fchmodat (dir_fd, "some-file", 0400, 0) != 0)
|
|
FAIL_EXIT1 ("fchownat failed: %m\n");
|
|
|
|
TEST_VERIFY (faccessat (dir_fd, "some-file", R_OK, AT_EACCESS) == 0);
|
|
|
|
/* Write would succeed only for EUID root, otherwise this test should
|
|
fail. */
|
|
errno = 0;
|
|
TEST_VERIFY (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS) == 0
|
|
? (geteuid () == 0) : (errno == EACCES));
|
|
|
|
/* Create a file descriptor which is closed again right away. */
|
|
int dir_fd2 = xdup (dir_fd);
|
|
close (dir_fd2);
|
|
|
|
/* With the file descriptor closed the next call must fail. */
|
|
TEST_VERIFY_EXIT (faccessat (dir_fd2, "some-file", F_OK, AT_EACCESS)
|
|
== -1);
|
|
TEST_VERIFY_EXIT (errno == EBADF);
|
|
|
|
/* Same with a non-existing file. */
|
|
TEST_VERIFY_EXIT (faccessat (dir_fd2, "non-existing-file", F_OK, AT_EACCESS)
|
|
== -1);
|
|
TEST_VERIFY_EXIT (errno == EBADF);
|
|
|
|
TEST_VERIFY (unlinkat (dir_fd, "some-file", 0) == 0);
|
|
|
|
xclose (dir_fd);
|
|
|
|
TEST_VERIFY_EXIT (faccessat (-1, "some-file", F_OK, AT_EACCESS) == -1);
|
|
TEST_VERIFY_EXIT (errno == EBADF);
|
|
|
|
return 0;
|
|
}
|
|
#define PREPARE prepare
|
|
#include <support/test-driver.c>
|