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-rw-r--r--gnulib-tests/test-rename.h959
1 files changed, 959 insertions, 0 deletions
diff --git a/gnulib-tests/test-rename.h b/gnulib-tests/test-rename.h
new file mode 100644
index 0000000..844e107
--- /dev/null
+++ b/gnulib-tests/test-rename.h
@@ -0,0 +1,959 @@
+/* Test of rename() function.
+ Copyright (C) 2009-2020 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/>. */
+
+/* This file is designed to test both rename(a,b) and
+ renameat(AT_FDCWD,a,AT_FDCWD,b). FUNC is the function to test.
+ Assumes that BASE and ASSERT are already defined, and that
+ appropriate headers are already included. If PRINT, warn before
+ skipping symlink tests with status 77. */
+
+/* Tests whether a file, given by a file name without slashes, exists in
+ the current directory, by scanning the directory entries. */
+static bool
+dentry_exists (const char *filename)
+{
+ bool exists = false;
+ DIR *dir = opendir (".");
+
+ ASSERT (dir != NULL);
+ for (;;)
+ {
+ struct dirent *d = readdir (dir);
+ if (d == NULL)
+ break;
+ if (strcmp (d->d_name, filename) == 0)
+ {
+ exists = true;
+ break;
+ }
+ }
+ ASSERT (closedir (dir) == 0);
+ return exists;
+}
+
+/* Asserts that a specific file, given by a file name without slashes, does
+ not exist in the current directory. */
+static void
+assert_nonexistent (const char *filename)
+{
+ struct stat st;
+
+ /* The usual way to test the presence of a file is via stat() or lstat(). */
+ errno = 0;
+ if (stat (filename, &st) == -1)
+ ASSERT (errno == ENOENT);
+ else
+ {
+ /* But after renaming a directory over an empty directory on an NFS-
+ mounted file system, on Linux 2.6.18, for a period of 30 seconds the
+ old directory name is "present" according to stat() but "nonexistent"
+ according to dentry_exists(). */
+ ASSERT (!dentry_exists (filename));
+ /* Remove the old directory name, so that subsequent mkdir calls
+ succeed. */
+ (void) rmdir (filename);
+ }
+}
+
+static int
+test_rename (int (*func) (char const *, char const *), bool print)
+{
+ /* Setup. */
+ struct stat st;
+ int fd = creat (BASE "file", 0600);
+ ASSERT (0 <= fd);
+ ASSERT (write (fd, "hi", 2) == 2);
+ ASSERT (close (fd) == 0);
+ ASSERT (mkdir (BASE "dir", 0700) == 0);
+
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+
+ /* Obvious errors. */
+
+ { /* Missing source. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "missing", BASE "missing") == -1);
+ ASSERT (errno == ENOENT);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "missing/", BASE "missing") == -1);
+ ASSERT (errno == ENOENT);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "missing", BASE "missing/") == -1);
+ ASSERT (errno == ENOENT);
+ }
+ }
+ { /* Empty operand. */
+ {
+ errno = 0;
+ ASSERT (func ("", BASE "missing") == -1);
+ ASSERT (errno == ENOENT);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "file", "") == -1);
+ ASSERT (errno == ENOENT);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "", "") == -1);
+ ASSERT (errno == ENOENT);
+ }
+ }
+
+ /* Files. */
+
+ { /* Trailing slash. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "file", BASE "file2/") == -1);
+ ASSERT (errno == ENOENT || errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "file/", BASE "file2") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (stat (BASE "file2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ }
+ { /* Simple rename. */
+ ASSERT (func (BASE "file", BASE "file2") == 0);
+ errno = 0;
+ ASSERT (stat (BASE "file", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (stat (BASE "file2", &st) == 0);
+ ASSERT (st.st_size == 2);
+ }
+ /* Files present here:
+ {BASE}file2
+ {BASE}dir/
+ */
+ { /* Overwrite. */
+ ASSERT (close (creat (BASE "file", 0600)) == 0);
+ errno = 0;
+ ASSERT (func (BASE "file2", BASE "file/") == -1);
+ ASSERT (errno == ENOTDIR);
+ ASSERT (func (BASE "file2", BASE "file") == 0);
+ memset (&st, 0, sizeof st);
+ ASSERT (stat (BASE "file", &st) == 0);
+ ASSERT (st.st_size == 2);
+ errno = 0;
+ ASSERT (stat (BASE "file2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+
+ /* Directories. */
+
+ { /* Simple rename. */
+ {
+ ASSERT (func (BASE "dir", BASE "dir2/") == 0);
+ errno = 0;
+ ASSERT (stat (BASE "dir", &st) == -1);
+ ASSERT (errno == ENOENT);
+ ASSERT (stat (BASE "dir2", &st) == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir2/
+ */
+ {
+ ASSERT (func (BASE "dir2/", BASE "dir") == 0);
+ ASSERT (stat (BASE "dir", &st) == 0);
+ errno = 0;
+ ASSERT (stat (BASE "dir2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ {
+ ASSERT (func (BASE "dir", BASE "dir2") == 0);
+ errno = 0;
+ ASSERT (stat (BASE "dir", &st) == -1);
+ ASSERT (errno == ENOENT);
+ ASSERT (stat (BASE "dir2", &st) == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir2/
+ */
+ { /* Empty onto empty. */
+ ASSERT (mkdir (BASE "dir", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ */
+ ASSERT (func (BASE "dir2", BASE "dir") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ ASSERT (mkdir (BASE "dir2", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ */
+ ASSERT (func (BASE "dir2", BASE "dir/") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ ASSERT (mkdir (BASE "dir2", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ */
+ ASSERT (func (BASE "dir2/", BASE "dir") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ ASSERT (mkdir (BASE "dir2", 0700) == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ */
+ { /* Empty onto full. */
+ ASSERT (close (creat (BASE "dir/file", 0600)) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir/file
+ {BASE}dir2/
+ */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2", BASE "dir") == -1);
+ ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2/", BASE "dir") == -1);
+ ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2", BASE "dir/") == -1);
+ ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+ }
+ }
+ { /* Full onto empty. */
+ ASSERT (func (BASE "dir", BASE "dir2") == 0);
+ assert_nonexistent (BASE "dir");
+ ASSERT (stat (BASE "dir2/file", &st) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir2/
+ {BASE}dir2/file
+ */
+ ASSERT (mkdir (BASE "dir", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ {BASE}dir2/file
+ */
+ {
+ ASSERT (func (BASE "dir2/", BASE "dir") == 0);
+ ASSERT (stat (BASE "dir/file", &st) == 0);
+ errno = 0;
+ ASSERT (stat (BASE "dir2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir/file
+ */
+ ASSERT (mkdir (BASE "dir2", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir/file
+ {BASE}dir2/
+ */
+ {
+ ASSERT (func (BASE "dir", BASE "dir2/") == 0);
+ assert_nonexistent (BASE "dir");
+ ASSERT (stat (BASE "dir2/file", &st) == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir2/
+ {BASE}dir2/file
+ */
+ ASSERT (unlink (BASE "dir2/file") == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir2/
+ */
+ { /* Reject trailing dot. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2", BASE "dir/.") == -1);
+ ASSERT (errno == EINVAL || errno == ENOENT);
+ }
+ ASSERT (mkdir (BASE "dir", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2", BASE "dir/.") == -1);
+ ASSERT (errno == EINVAL || errno == EBUSY || errno == EISDIR
+ || errno == ENOTEMPTY || errno == EEXIST
+ || errno == ENOENT /* WSL */);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2/.", BASE "dir") == -1);
+ ASSERT (errno == EINVAL || errno == EBUSY || errno == EEXIST
+ || errno == ENOENT /* WSL */);
+ }
+ ASSERT (rmdir (BASE "dir") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir2/
+ */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2", BASE "dir/.//") == -1);
+ ASSERT (errno == EINVAL || errno == ENOENT);
+ }
+ ASSERT (mkdir (BASE "dir", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir2/
+ */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2", BASE "dir/.//") == -1);
+ ASSERT (errno == EINVAL || errno == EBUSY || errno == EISDIR
+ || errno == ENOTEMPTY || errno == EEXIST
+ || errno == ENOENT /* WSL */);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir2/.//", BASE "dir") == -1);
+ ASSERT (errno == EINVAL || errno == EBUSY || errno == EEXIST
+ || errno == ENOENT /* WSL */);
+ }
+ ASSERT (rmdir (BASE "dir2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ }
+ { /* Move into subdir. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir", BASE "dir/sub") == -1);
+ ASSERT (errno == EINVAL || errno == EACCES);
+ }
+ {
+ errno = 0;
+ ASSERT (stat (BASE "dir/sub", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ ASSERT (mkdir (BASE "dir/sub", 0700) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir/sub/
+ */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir", BASE "dir/sub") == -1);
+ ASSERT (errno == EINVAL);
+ ASSERT (stat (BASE "dir/sub", &st) == 0);
+ }
+ ASSERT (rmdir (BASE "dir/sub") == 0);
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+
+ /* Mixing file and directory. */
+
+ {
+ { /* File onto dir. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "file", BASE "dir") == -1);
+ ASSERT (errno == EISDIR || errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "file", BASE "dir/") == -1);
+ ASSERT (errno == EISDIR || errno == ENOTDIR);
+ }
+ }
+ { /* Dir onto file. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir", BASE "file") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir/", BASE "file") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ }
+ }
+
+ /* Hard links. */
+
+ { /* File onto self. */
+ ASSERT (func (BASE "file", BASE "file") == 0);
+ memset (&st, 0, sizeof st);
+ ASSERT (stat (BASE "file", &st) == 0);
+ ASSERT (st.st_size == 2);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ { /* Empty dir onto self. */
+ ASSERT (func (BASE "dir", BASE "dir") == 0);
+ ASSERT (stat (BASE "dir", &st) == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ ASSERT (close (creat (BASE "dir/file", 0600)) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ {BASE}dir/file
+ */
+ { /* Full dir onto self. */
+ ASSERT (func (BASE "dir", BASE "dir") == 0);
+ }
+ ASSERT (unlink (BASE "dir/file") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+ {
+ /* Not all file systems support link. Mingw doesn't have
+ reliable st_nlink on hard links, but our implementation does
+ fail with EPERM on poor file systems, and we can detect the
+ inferior stat() via st_ino. Cygwin 1.5.x copies rather than
+ links files on those file systems, but there, st_nlink and
+ st_ino are reliable. */
+ int ret = link (BASE "file", BASE "file2");
+ if (!ret)
+ {
+ memset (&st, 0, sizeof st);
+ ASSERT (stat (BASE "file2", &st) == 0);
+ if (st.st_ino && st.st_nlink != 2)
+ {
+ ASSERT (unlink (BASE "file2") == 0);
+ errno = EPERM;
+ ret = -1;
+ }
+ }
+ if (ret == -1)
+ {
+ /* If the device does not support hard links, errno is
+ EPERM on Linux, EOPNOTSUPP on FreeBSD. */
+ switch (errno)
+ {
+ case EPERM:
+ case EOPNOTSUPP:
+ if (print)
+ fputs ("skipping test: "
+ "hard links not supported on this file system\n",
+ stderr);
+ ASSERT (unlink (BASE "file") == 0);
+ ASSERT (rmdir (BASE "dir") == 0);
+ return 77;
+ default:
+ perror ("link");
+ return 1;
+ }
+ }
+ ASSERT (ret == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}file2 (hard link to file)
+ {BASE}dir/
+ */
+ { /* File onto hard link. */
+ ASSERT (func (BASE "file", BASE "file2") == 0);
+ memset (&st, 0, sizeof st);
+ if (stat (BASE "file", &st) != 0)
+ {
+ /* This can happen on NetBSD. */
+ ASSERT (errno == ENOENT);
+ ASSERT (link (BASE "file2", BASE "file") == 0);
+ ASSERT (stat (BASE "file", &st) == 0);
+ }
+ ASSERT (st.st_size == 2);
+ memset (&st, 0, sizeof st);
+ ASSERT (stat (BASE "file2", &st) == 0);
+ ASSERT (st.st_size == 2);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}file2
+ {BASE}dir/
+ */
+ ASSERT (unlink (BASE "file2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}dir/
+ */
+
+ /* Symlinks. */
+
+ if (symlink (BASE "file", BASE "link1"))
+ {
+ if (print)
+ fputs ("skipping test: symlinks not supported on this file system\n",
+ stderr);
+ ASSERT (unlink (BASE "file") == 0);
+ ASSERT (rmdir (BASE "dir") == 0);
+ return 77;
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+ { /* Simple rename. */
+ ASSERT (func (BASE "link1", BASE "link2") == 0);
+ ASSERT (stat (BASE "file", &st) == 0);
+ errno = 0;
+ ASSERT (lstat (BASE "link1", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link2", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link2 -> {BASE}file
+ {BASE}dir/
+ */
+ { /* Overwrite. */
+ ASSERT (symlink (BASE "nowhere", BASE "link1") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}nowhere
+ {BASE}link2 -> {BASE}file
+ {BASE}dir/
+ */
+ {
+ ASSERT (func (BASE "link2", BASE "link1") == 0);
+ memset (&st, 0, sizeof st);
+ ASSERT (stat (BASE "link1", &st) == 0);
+ ASSERT (st.st_size == 2);
+ errno = 0;
+ ASSERT (lstat (BASE "link2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+ { /* Symlink loop. */
+ ASSERT (symlink (BASE "link2", BASE "link2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}link2
+ {BASE}dir/
+ */
+ {
+ ASSERT (func (BASE "link2", BASE "link2") == 0);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link2/", BASE "link2") == -1);
+ ASSERT (errno == ELOOP || errno == ENOTDIR);
+ }
+ ASSERT (func (BASE "link2", BASE "link3") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link3 -> {BASE}link2
+ {BASE}dir/
+ */
+ ASSERT (unlink (BASE "link3") == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+ { /* Dangling link. */
+ ASSERT (symlink (BASE "nowhere", BASE "link2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}nowhere
+ {BASE}dir/
+ */
+ {
+ ASSERT (func (BASE "link2", BASE "link3") == 0);
+ errno = 0;
+ ASSERT (lstat (BASE "link2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link3", &st) == 0);
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link3 -> {BASE}nowhere
+ {BASE}dir/
+ */
+ { /* Trailing slash on dangling. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "link3/", BASE "link2") == -1);
+ ASSERT (errno == ENOENT || errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link3", BASE "link2/") == -1);
+ ASSERT (errno == ENOENT || errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (lstat (BASE "link2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ }
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link3", &st) == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link3 -> {BASE}nowhere
+ {BASE}dir/
+ */
+ { /* Trailing slash on link to file. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1/", BASE "link2") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1", BASE "link3/") == -1);
+ ASSERT (errno == ENOENT || errno == ENOTDIR);
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link3 -> {BASE}nowhere
+ {BASE}dir/
+ */
+
+ /* Mixing symlink and file. */
+
+ { /* File onto link. */
+ ASSERT (close (creat (BASE "file2", 0600)) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}file2
+ {BASE}link1 -> {BASE}file
+ {BASE}link3 -> {BASE}nowhere
+ {BASE}dir/
+ */
+ {
+ ASSERT (func (BASE "file2", BASE "link3") == 0);
+ errno = 0;
+ ASSERT (stat (BASE "file2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link3", &st) == 0);
+ ASSERT (S_ISREG (st.st_mode));
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link3
+ {BASE}dir/
+ */
+ ASSERT (unlink (BASE "link3") == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+ { /* Link onto file. */
+ ASSERT (symlink (BASE "nowhere", BASE "link2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}nowhere
+ {BASE}dir/
+ */
+ ASSERT (close (creat (BASE "file2", 0600)) == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}file2
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}nowhere
+ {BASE}dir/
+ */
+ {
+ ASSERT (func (BASE "link2", BASE "file2") == 0);
+ errno = 0;
+ ASSERT (lstat (BASE "link2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "file2", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}file2 -> {BASE}nowhere
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+ ASSERT (unlink (BASE "file2") == 0);
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+ { /* Trailing slash. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "file/", BASE "link1") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "file", BASE "link1/") == -1);
+ ASSERT (errno == ENOTDIR || errno == ENOENT);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1/", BASE "file") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1", BASE "file/") == -1);
+ ASSERT (errno == ENOTDIR || errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "file", &st) == 0);
+ ASSERT (S_ISREG (st.st_mode));
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link1", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+
+ /* Mixing symlink and directory. */
+
+ { /* Directory onto link. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir", BASE "link1") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir/", BASE "link1") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "dir", BASE "link1/") == -1);
+ ASSERT (errno == ENOTDIR);
+ }
+ }
+ { /* Link onto directory. */
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1", BASE "dir") == -1);
+ ASSERT (errno == EISDIR || errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1", BASE "dir/") == -1);
+ ASSERT (errno == EISDIR || errno == ENOTDIR);
+ }
+ {
+ errno = 0;
+ ASSERT (func (BASE "link1/", BASE "dir") == -1);
+ ASSERT (errno == ENOTDIR);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link1", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "dir", &st) == 0);
+ ASSERT (S_ISDIR (st.st_mode));
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}dir/
+ */
+
+ /* POSIX requires rename("link-to-dir/","other") to rename "dir" and
+ leave "link-to-dir" dangling, but GNU rejects this. POSIX
+ requires rename("dir","dangling/") to create the directory so
+ that "dangling/" now resolves, but GNU rejects this. While we
+ prefer GNU behavior, we don't enforce it. However, we do test
+ that the system either follows POSIX in both cases, or follows
+ GNU. */
+ {
+ int result;
+ ASSERT (symlink (BASE "dir2", BASE "link2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}dir2
+ {BASE}dir/
+ */
+ errno = 0;
+ result = func (BASE "dir", BASE "link2/");
+ if (result == 0)
+ {
+ /* POSIX. */
+ errno = 0;
+ ASSERT (lstat (BASE "dir", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "dir2", &st) == 0);
+ ASSERT (S_ISDIR (st.st_mode));
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link2", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}dir2
+ {BASE}dir2/
+ */
+ {
+ ASSERT (func (BASE "link2/", BASE "dir") == 0);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "dir", &st) == 0);
+ ASSERT (S_ISDIR (st.st_mode));
+ errno = 0;
+ ASSERT (lstat (BASE "dir2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link2", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ }
+ }
+ else
+ {
+ /* GNU. */
+ ASSERT (result == -1);
+ ASSERT (errno == ENOTDIR);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "dir", &st) == 0);
+ ASSERT (S_ISDIR (st.st_mode));
+ errno = 0;
+ ASSERT (lstat (BASE "dir2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link2", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ ASSERT (unlink (BASE "link2") == 0);
+ ASSERT (symlink (BASE "dir", BASE "link2") == 0);
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}dir
+ {BASE}dir/
+ */
+ errno = 0; /* OpenBSD notices that link2/ and dir are the same. */
+ result = func (BASE "link2/", BASE "dir");
+ if (result) /* GNU/Linux rejects attempts to use link2/. */
+ {
+ ASSERT (result == -1);
+ ASSERT (errno == ENOTDIR || errno == EISDIR);
+ }
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "dir", &st) == 0);
+ ASSERT (S_ISDIR (st.st_mode));
+ errno = 0;
+ ASSERT (lstat (BASE "dir2", &st) == -1);
+ ASSERT (errno == ENOENT);
+ memset (&st, 0, sizeof st);
+ ASSERT (lstat (BASE "link2", &st) == 0);
+ ASSERT (S_ISLNK (st.st_mode));
+ }
+ }
+ /* Files present here:
+ {BASE}file
+ {BASE}link1 -> {BASE}file
+ {BASE}link2 -> {BASE}dir or {BASE}dir2
+ {BASE}dir/
+ */
+
+ /* Clean up. */
+ ASSERT (unlink (BASE "file") == 0);
+ ASSERT (rmdir (BASE "dir") == 0);
+ ASSERT (unlink (BASE "link1") == 0);
+ ASSERT (unlink (BASE "link2") == 0);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 21:13:33 +0000