darling-xnu/tests/rename_excl.c
2023-05-16 21:41:14 -07:00

122 lines
3.6 KiB
C

#include <darwintest.h>
#include <darwintest_utils.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
T_GLOBAL_META(
T_META_NAMESPACE("xnu.vfs"),
T_META_CHECK_LEAKS(false)
);
#define TEST_DIR "rename_dir"
#define TEST_FILE1 TEST_DIR "/file1"
#define TEST_FILE1_UC TEST_DIR "/FILE1"
#define TEST_FILE2 TEST_DIR "/file2"
#define TEST_FILE3_HL TEST_DIR "/file3"
static void
cleanup(void)
{
(void) remove(TEST_FILE1);
(void) remove(TEST_FILE1_UC);
(void) remove(TEST_FILE2);
(void) remove(TEST_FILE3_HL);
(void) rmdir(TEST_DIR);
}
/*
* This unit-test validates the behavior of renamex_np() with RENAME_EXCL flag.
* On either a case-insensitve/case-sensitive volume:
* 1. rename from source to existing target should succeed when the change is
* only case-variant (for e.g rename_dir/file1 -> rename_dir/FILE1)
* 2. rename from source to existing target should fail with EEXIST
* 3. rename from source to existing target which is a hardlink of the source
* should fail with EEXIST
*
* On case-insensitive volume:
* 1. rename from source to itself should succeed
* (rename_dir/file1 -> rename_dir/file1)
*
* On case-sensitive volume:
* 1. rename from source to itself should fail with EEXIST
* (rename_dir/file1 -> rename_dir/file1)
*/
T_DECL(rename_excl_with_case_variant,
"test renamex_np() with RENAME_EXCL flag for files with case variants")
{
const char *tmpdir = dt_tmpdir();
long case_sensitive_vol;
int err, saved_errno;
int fd;
T_SETUPBEGIN;
atexit(cleanup);
T_ASSERT_POSIX_ZERO(chdir(tmpdir),
"Setup: changing to tmpdir: %s", tmpdir);
T_ASSERT_POSIX_SUCCESS(mkdir(TEST_DIR, 0777),
"Setup: creating test dir: %s", TEST_DIR);
T_WITH_ERRNO;
fd = open(TEST_FILE1, O_CREAT | O_RDWR, 0666);
T_ASSERT_TRUE(fd != -1, "Creating test file1: %s", TEST_FILE1);
T_ASSERT_POSIX_SUCCESS(close(fd), "Closing test file1: %s",
TEST_FILE1);
T_WITH_ERRNO;
fd = open(TEST_FILE2, O_CREAT | O_RDWR, 0666);
T_ASSERT_TRUE(fd != -1, "Creating test file2: %s", TEST_FILE2);
T_ASSERT_POSIX_SUCCESS(close(fd), "Closing test file2: %s",
TEST_FILE2);
T_ASSERT_POSIX_SUCCESS(link(TEST_FILE1, TEST_FILE3_HL),
"Creating hardlink for %s from source: %s",
TEST_FILE3_HL, TEST_FILE1);
case_sensitive_vol = pathconf(TEST_DIR, _PC_CASE_SENSITIVE);
T_ASSERT_TRUE(case_sensitive_vol != -1,
"Checking if target volume is case-sensitive, is_case_sensitive: %ld",
case_sensitive_vol);
T_SETUPEND;
err = renamex_np(TEST_FILE1, TEST_FILE2, RENAME_EXCL);
saved_errno = errno;
T_ASSERT_TRUE((err == -1 && saved_errno == EEXIST),
"Renaming with RENAME_EXCL from source: %s to target: %s",
TEST_FILE1, TEST_FILE2);
err = renamex_np(TEST_FILE1, TEST_FILE3_HL, RENAME_EXCL);
saved_errno = errno;
T_ASSERT_TRUE((err == -1 && saved_errno == EEXIST),
"Renaming with RENAME_EXCL from source: %s to hardlink target: %s",
TEST_FILE1, TEST_FILE3_HL);
if (case_sensitive_vol) {
err = renamex_np(TEST_FILE1, TEST_FILE1, RENAME_EXCL);
saved_errno = errno;
T_ASSERT_TRUE((err == -1 && saved_errno == EEXIST),
"Renaming with RENAME_EXCL from source: %s to target: %s",
TEST_FILE1, TEST_FILE1);
} else {
T_ASSERT_POSIX_SUCCESS(renamex_np(TEST_FILE1, TEST_FILE1, RENAME_EXCL),
"Renaming with RENAME_EXCL from source: %s to target: %s",
TEST_FILE1, TEST_FILE1);
}
T_ASSERT_POSIX_SUCCESS(renamex_np(TEST_FILE1, TEST_FILE1_UC, RENAME_EXCL),
"Renaming with RENAME_EXCL from source: %s to target: %s",
TEST_FILE1, TEST_FILE1_UC);
}