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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /gnulib-tests/test-fchdir.c
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gnulib-tests/test-fchdir.c')
-rw-r--r--gnulib-tests/test-fchdir.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/gnulib-tests/test-fchdir.c b/gnulib-tests/test-fchdir.c
new file mode 100644
index 0000000..5eee2ab
--- /dev/null
+++ b/gnulib-tests/test-fchdir.c
@@ -0,0 +1,110 @@
+/* Test changing to a directory named by a file descriptor.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009. */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fchdir, int, (int));
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "cloexec.h"
+#include "macros.h"
+
+int
+main (void)
+{
+ char *cwd;
+ int fd;
+ int i;
+
+ cwd = getcwd (NULL, 0);
+ ASSERT (cwd);
+
+ fd = open (".", O_RDONLY);
+ ASSERT (0 <= fd);
+
+ /* Test behaviour for invalid file descriptors. */
+ {
+ errno = 0;
+ ASSERT (fchdir (-1) == -1);
+ ASSERT (errno == EBADF);
+ }
+ {
+ close (99);
+ errno = 0;
+ ASSERT (fchdir (99) == -1);
+ ASSERT (errno == EBADF);
+ }
+
+ /* Check for other failure cases. */
+ {
+ int bad_fd = open ("/dev/null", O_RDONLY);
+ ASSERT (0 <= bad_fd);
+ errno = 0;
+ ASSERT (fchdir (bad_fd) == -1);
+ ASSERT (errno == ENOTDIR);
+ ASSERT (close (bad_fd) == 0);
+ }
+
+ /* Repeat test twice, once in '.' and once in '..'. */
+ for (i = 0; i < 2; i++)
+ {
+ ASSERT (chdir (&".."[1 - i]) == 0);
+ ASSERT (fchdir (fd) == 0);
+ {
+ size_t len = strlen (cwd) + 1;
+ char *new_dir = malloc (len);
+ ASSERT (new_dir);
+ ASSERT (getcwd (new_dir, len) == new_dir);
+ ASSERT (strcmp (cwd, new_dir) == 0);
+ free (new_dir);
+ }
+
+ /* For second iteration, use a cloned fd, to ensure that dup
+ remembers whether an fd was associated with a directory. */
+ if (!i)
+ {
+ int new_fd = dup (fd);
+ ASSERT (0 <= new_fd);
+ ASSERT (close (fd) == 0);
+ ASSERT (dup2 (new_fd, fd) == fd);
+ ASSERT (close (new_fd) == 0);
+ ASSERT (dup_cloexec (fd) == new_fd);
+ ASSERT (dup2 (new_fd, fd) == fd);
+ ASSERT (close (new_fd) == 0);
+ ASSERT (fcntl (fd, F_DUPFD_CLOEXEC, new_fd) == new_fd);
+ ASSERT (close (fd) == 0);
+ ASSERT (fcntl (new_fd, F_DUPFD, fd) == fd);
+ ASSERT (close (new_fd) == 0);
+#if GNULIB_TEST_DUP3
+ ASSERT (dup3 (fd, new_fd, 0) == new_fd);
+ ASSERT (dup3 (new_fd, fd, 0) == fd);
+ ASSERT (close (new_fd) == 0);
+#endif
+ }
+ }
+
+ free (cwd);
+ return 0;
+}