227 lines
7.2 KiB
C
227 lines
7.2 KiB
C
/* Test renameatu.
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Copyright (C) 2009-2025 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Eric Blake <ebb9@byu.net>, 2009. */
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#include <config.h>
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#include <renameatu.h>
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#include <stdio.h>
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#include "signature.h"
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SIGNATURE_CHECK (renameatu, int,
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(int, char const *, int, char const *, unsigned int));
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#include <dirent.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include "filenamecat.h"
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#include "ignore-value.h"
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#include "macros.h"
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#define BASE "test-renameatu.t"
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#include "test-rename.h"
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static int dfd1 = AT_FDCWD;
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static int dfd2 = AT_FDCWD;
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/* Wrapper to test renameatu like rename. */
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static int
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do_rename (char const *name1, char const *name2)
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{
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return renameatu (dfd1, name1, dfd2, name2, 0);
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}
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int
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main (void)
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{
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int i;
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int dfd;
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char *cwd;
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int result;
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/* Clean up any trash from prior testsuite runs. */
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ignore_value (system ("rm -rf " BASE "*"));
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/* Test behaviour for invalid file descriptors. */
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{
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errno = 0;
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ASSERT (renameatu (-1, "foo", AT_FDCWD, "bar", 0) == -1);
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ASSERT (errno == EBADF);
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}
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{
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close (99);
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errno = 0;
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ASSERT (renameatu (99, "foo", AT_FDCWD, "bar", 0) == -1);
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ASSERT (errno == EBADF);
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}
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ASSERT (close (creat (BASE "oo", 0600)) == 0);
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{
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errno = 0;
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ASSERT (renameatu (AT_FDCWD, BASE "oo", -1, "bar", 0) == -1);
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ASSERT (errno == EBADF);
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}
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{
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errno = 0;
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ASSERT (renameatu (AT_FDCWD, BASE "oo", 99, "bar", 0) == -1);
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ASSERT (errno == EBADF);
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}
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ASSERT (unlink (BASE "oo") == 0);
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/* Test basic rename functionality, using current directory. */
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result = test_rename (do_rename, false);
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dfd1 = open (".", O_RDONLY);
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ASSERT (0 <= dfd1);
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ASSERT (test_rename (do_rename, false) == result);
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dfd2 = dfd1;
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ASSERT (test_rename (do_rename, false) == result);
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dfd1 = AT_FDCWD;
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ASSERT (test_rename (do_rename, false) == result);
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ASSERT (close (dfd2) == 0);
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/* Create locations to manipulate. */
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ASSERT (mkdir (BASE "sub1", 0700) == 0);
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ASSERT (mkdir (BASE "sub2", 0700) == 0);
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dfd = creat (BASE "00", 0600);
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ASSERT (0 <= dfd);
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ASSERT (close (dfd) == 0);
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cwd = getcwd (NULL, 0);
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ASSERT (cwd);
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dfd = open (BASE "sub1", O_RDONLY);
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ASSERT (0 <= dfd);
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ASSERT (chdir (BASE "sub2") == 0);
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/* There are 16 possible scenarios, based on whether an fd is
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AT_FDCWD or real, and whether a file is absolute or relative.
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To ensure that we test all of the code paths (rather than
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triggering early normalization optimizations), we use a loop to
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repeatedly rename a file in the parent directory, use an fd open
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on subdirectory 1, all while executing in subdirectory 2; all
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relative names are thus given with a leading "../". Finally, the
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last scenario (two relative paths given, neither one AT_FDCWD)
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has two paths, based on whether the two fds are equivalent, so we
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do the other variant after the loop. */
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for (i = 0; i < 16; i++)
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{
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int fd1 = (i & 8) ? dfd : AT_FDCWD;
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char *file1 = file_name_concat ((i & 4) ? ".." : cwd, BASE "xx", NULL);
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int fd2 = (i & 2) ? dfd : AT_FDCWD;
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char *file2 = file_name_concat ((i & 1) ? ".." : cwd, BASE "xx", NULL);
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ASSERT (sprintf (strchr (file1, '\0') - 2, "%02d", i) == 2);
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ASSERT (sprintf (strchr (file2, '\0') - 2, "%02d", i + 1) == 2);
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ASSERT (renameatu (fd1, file1, fd2, file2, 0) == 0);
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free (file1);
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free (file2);
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}
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dfd2 = open ("..", O_RDONLY);
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ASSERT (0 <= dfd2);
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ASSERT (renameatu (dfd, "../" BASE "16", dfd2, BASE "17", 0) == 0);
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ASSERT (close (dfd2) == 0);
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/* Now we change back to the parent directory, and set dfd to ".";
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using dfd in remaining tests will expose any bugs if emulation
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via /proc/self/fd doesn't check for empty names. */
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ASSERT (chdir ("..") == 0);
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ASSERT (close (dfd) == 0);
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dfd = open (".", O_RDONLY);
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ASSERT (0 <= dfd);
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ASSERT (close (creat (BASE "sub2/file", 0600)) == 0);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "sub1", dfd, BASE "sub2", 0) == -1);
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ASSERT (errno == EEXIST || errno == ENOTEMPTY);
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ASSERT (unlink (BASE "sub2/file") == 0);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "sub2", dfd, BASE "sub1/.", 0) == -1);
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ASSERT (errno == EINVAL || errno == EISDIR || errno == EBUSY
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|| errno == ENOTEMPTY || errno == EEXIST
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|| errno == ENOENT /* WSL */);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "sub2/.", dfd, BASE "sub1", 0) == -1);
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ASSERT (errno == EINVAL || errno == EBUSY || errno == EEXIST
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|| errno == ENOENT /* WSL */);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "17", dfd, BASE "sub1", 0) == -1);
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ASSERT (errno == EISDIR);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "nosuch", dfd, BASE "18", 0) == -1);
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ASSERT (errno == ENOENT);
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errno = 0;
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ASSERT (renameatu (dfd, "", dfd, BASE "17", 0) == -1);
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ASSERT (errno == ENOENT);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "17", dfd, "", 0) == -1);
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ASSERT (errno == ENOENT);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "sub2", dfd, BASE "17", 0) == -1);
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ASSERT (errno == ENOTDIR);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "17/", dfd, BASE "18", 0) == -1);
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ASSERT (errno == ENOTDIR);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "17", dfd, BASE "18/", 0) == -1);
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ASSERT (errno == ENOTDIR || errno == ENOENT);
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/* Finally, make sure we cannot overwrite existing files. */
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ASSERT (close (creat (BASE "sub2/file", 0600)) == 0);
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errno = 0;
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ASSERT ((renameatu (dfd, BASE "sub2/file", dfd, BASE "sub2/file",
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RENAME_NOREPLACE)
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== -1)
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&& errno == EEXIST);
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errno = 0;
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ASSERT ((renameatu (dfd, BASE "sub2", dfd, BASE "sub2", RENAME_NOREPLACE)
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== -1)
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&& errno == EEXIST);
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errno = 0;
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ASSERT ((renameatu (dfd, BASE "sub2", dfd, BASE "sub1", RENAME_NOREPLACE)
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== -1)
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&& errno == EEXIST);
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errno = 0;
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ASSERT ((renameatu (dfd, BASE "sub2/file", dfd, BASE "17", RENAME_NOREPLACE)
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== -1)
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&& errno == EEXIST);
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errno = 0;
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ASSERT (renameatu (dfd, BASE "sub2", dfd, BASE "sub1", RENAME_EXCHANGE) < 0
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? errno == EINVAL || errno == ENOSYS || errno == ENOTSUP
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: (renameatu (dfd, BASE "sub1/file", dfd, BASE "sub2/file",
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RENAME_NOREPLACE)
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== 0));
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/* Cleanup. */
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ASSERT (close (dfd) == 0);
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ASSERT (unlink (BASE "sub2/file") == 0);
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ASSERT (unlink (BASE "17") == 0);
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ASSERT (rmdir (BASE "sub1") == 0);
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ASSERT (rmdir (BASE "sub2") == 0);
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free (cwd);
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if (result == 77)
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fputs ("skipping test: symlinks not supported on this file system\n",
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stderr);
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return (result ? result : test_exit_status);
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}
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