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tst-faccessat.c: Port to libsupport
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>
This commit is contained in:
Siddhesh Poyarekar
parent
04b1eb161f
commit
ea75860813
@ -1,6 +1,23 @@
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/* Test for faccessat function. */
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/* Test for faccessat function.
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Copyright (C) 2006-2024 Free Software Foundation, Inc.
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Copyright The GNU Toolchain Authors.
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This file is part of the GNU C Library.
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#include <dirent.h>
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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 <stdio.h>
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#include <stdlib.h>
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@ -8,47 +25,19 @@
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#include <unistd.h>
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#include <sys/stat.h>
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#include <support/check.h>
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#include <support/temp_file.h>
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#include <support/test-driver.h>
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#include <support/xdirent.h>
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#include <support/xunistd.h>
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static void prepare (void);
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#define PREPARE(argc, argv) prepare ()
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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static int dir_fd;
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static void
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prepare (void)
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prepare (int argc, char **argv)
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{
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size_t test_dir_len = strlen (test_dir);
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static const char dir_name[] = "/tst-faccessat.XXXXXX";
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size_t dirbuflen = test_dir_len + sizeof (dir_name);
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char *dirbuf = malloc (dirbuflen);
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if (dirbuf == NULL)
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{
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puts ("out of memory");
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exit (1);
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}
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snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
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if (mkdtemp (dirbuf) == NULL)
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{
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puts ("cannot create temporary directory");
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exit (1);
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}
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add_temp_file (dirbuf);
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dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
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if (dir_fd == -1)
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{
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puts ("cannot open directory");
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exit (1);
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}
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dir_fd = xopen (support_create_temp_directory ("tst-faccessat."),
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O_RDONLY | O_DIRECTORY, 0);
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}
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@ -56,159 +45,79 @@ static int
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do_test (void)
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{
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/* fdopendir takes over the descriptor, make a copy. */
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int dupfd = dup (dir_fd);
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if (dupfd == -1)
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{
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puts ("dup failed");
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return 1;
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}
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if (lseek (dupfd, 0, SEEK_SET) != 0)
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{
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puts ("1st lseek failed");
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return 1;
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}
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int dupfd = xdup (dir_fd);
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xlseek (dupfd, 0, SEEK_SET);
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/* The directory should be empty save the . and .. files. */
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DIR *dir = fdopendir (dupfd);
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if (dir == NULL)
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{
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puts ("fdopendir failed");
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return 1;
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}
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DIR *dir = xfdopendir (dupfd);
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struct dirent64 *d;
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while ((d = readdir64 (dir)) != NULL)
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while ((d = xreaddir64 (dir)) != NULL)
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if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
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{
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printf ("temp directory contains file \"%s\"\n", d->d_name);
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return 1;
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}
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closedir (dir);
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FAIL_EXIT1 ("temp directory contains file \"%s\"\n", d->d_name);
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xclosedir (dir);
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/* Try to create a file. */
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int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
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if (fd == -1)
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{
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if (errno == ENOSYS)
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{
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puts ("*at functions not supported");
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return 0;
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}
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FAIL_UNSUPPORTED ("*at functions not supported");
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puts ("file creation failed");
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return 1;
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FAIL_EXIT1 ("file creation failed");
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}
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xwrite (fd, "hello", 5);
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puts ("file created");
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/* Before closing the file, try using this file descriptor to open
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another file. This must fail. */
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if (faccessat (fd, "should-not-work", F_OK, AT_EACCESS) != -1)
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{
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puts ("faccessat using descriptor for normal file worked");
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return 1;
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}
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if (errno != ENOTDIR)
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{
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puts ("\
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error for faccessat using descriptor for normal file not ENOTDIR ");
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return 1;
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}
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TEST_VERIFY_EXIT (faccessat (fd, "should-not-work", F_OK, AT_EACCESS) == -1);
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TEST_VERIFY_EXIT (errno == ENOTDIR);
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close (fd);
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xclose (fd);
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int result = 0;
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if (faccessat (dir_fd, "some-file", F_OK, AT_EACCESS))
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{
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printf ("faccessat F_OK: %m\n");
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result = 1;
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}
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if (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS))
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{
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printf ("faccessat W_OK: %m\n");
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result = 1;
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}
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TEST_VERIFY (faccessat (dir_fd, "some-file", F_OK, AT_EACCESS) == 0);
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TEST_VERIFY (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS) == 0);
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errno = 0;
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if (faccessat (dir_fd, "some-file", X_OK, AT_EACCESS) == 0
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|| errno != EACCES)
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{
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printf ("faccessat X_OK on nonexecutable: %m\n");
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result = 1;
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}
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if (faccessat (dir_fd, "some-file", X_OK, AT_EACCESS) != 0)
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TEST_COMPARE (errno, EACCES);
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else
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FAIL ("faccessat unexpectedly succeeded\n");
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if (fchmodat (dir_fd, "some-file", 0400, 0) != 0)
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{
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printf ("fchownat failed: %m\n");
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return 1;
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}
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FAIL_EXIT1 ("fchownat failed: %m\n");
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if (faccessat (dir_fd, "some-file", R_OK, AT_EACCESS))
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{
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printf ("faccessat R_OK: %m\n");
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result = 1;
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}
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TEST_VERIFY (faccessat (dir_fd, "some-file", R_OK, AT_EACCESS) == 0);
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/* Write would succeed only for EUID root, otherwise this test should
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fail. */
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errno = 0;
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if (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS) == 0
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? (geteuid () != 0) : (errno != EACCES))
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{
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printf ("faccessat W_OK on unwritable file: %m\n");
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result = 1;
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}
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TEST_VERIFY (faccessat (dir_fd, "some-file", W_OK, AT_EACCESS) == 0
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? (geteuid () == 0) : (errno == EACCES));
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/* Create a file descriptor which is closed again right away. */
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int dir_fd2 = dup (dir_fd);
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if (dir_fd2 == -1)
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{
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puts ("dup failed");
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return 1;
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}
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int dir_fd2 = xdup (dir_fd);
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close (dir_fd2);
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/* With the file descriptor closed the next call must fail. */
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if (faccessat (dir_fd2, "some-file", F_OK, AT_EACCESS) != -1)
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{
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puts ("faccessat using closed descriptor succeeded");
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return 1;
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}
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if (errno != EBADF)
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{
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puts ("faccessat using closed descriptor did not set EBADF");
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return 1;
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}
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TEST_VERIFY_EXIT (faccessat (dir_fd2, "some-file", F_OK, AT_EACCESS)
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== -1);
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TEST_VERIFY_EXIT (errno == EBADF);
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/* Same with a non-existing file. */
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if (faccessat (dir_fd2, "non-existing-file", F_OK, AT_EACCESS) != -1)
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{
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puts ("2nd faccessat using closed descriptor succeeded");
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return 1;
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}
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if (errno != EBADF)
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{
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puts ("2nd faccessat using closed descriptor did not set EBADF");
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return 1;
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}
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TEST_VERIFY_EXIT (faccessat (dir_fd2, "non-existing-file", F_OK, AT_EACCESS)
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== -1);
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TEST_VERIFY_EXIT (errno == EBADF);
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if (unlinkat (dir_fd, "some-file", 0) != 0)
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{
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puts ("unlinkat failed");
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result = 1;
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}
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TEST_VERIFY (unlinkat (dir_fd, "some-file", 0) == 0);
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close (dir_fd);
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xclose (dir_fd);
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fd = faccessat (-1, "some-file", F_OK, AT_EACCESS);
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if (fd != -1)
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{
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puts ("faccessat using -1 descriptor succeeded");
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return 1;
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}
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if (errno != EBADF)
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{
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puts ("faccessat using -1 descriptor did not set EBADF");
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return 1;
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}
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TEST_VERIFY_EXIT (faccessat (-1, "some-file", F_OK, AT_EACCESS) == -1);
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TEST_VERIFY_EXIT (errno == EBADF);
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return result;
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return 0;
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}
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#define PREPARE prepare
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#include <support/test-driver.c>
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