android13/external/ltp/testcases/kernel/syscalls/lstat/lstat01.c

76 lines
1.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
* Authors: William Roske, Dave Fenner
*
* 06/2019 Ported to new library:
* Christian Amann <camann@suse.com>
*/
/*
* Basic test for lstat():
*
* Tests if lstat() writes correct information about a symlink
* into the stat structure.
*/
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "tst_test.h"
#define TESTFILE "tst_file"
#define TESTSYML "tst_syml"
static uid_t user_id;
static gid_t group_id;
static void run(void)
{
struct stat stat_buf;
memset(&stat_buf, 0, sizeof(stat_buf));
TEST(lstat(TESTSYML, &stat_buf));
if (TST_RET == -1)
tst_res(TFAIL | TTERRNO, "Calling lstat() failed");
if ((stat_buf.st_mode & S_IFMT) != S_IFLNK ||
stat_buf.st_uid != user_id ||
stat_buf.st_gid != group_id) {
/*
* b/148414662 b/150467619
* Symlinks normally have a size equal to the path length but this is not true
* for symlinks encrypted by per-file encryption.
* stat_buf.st_size != strlen(TESTFILE)) {
*/
tst_res(TFAIL,
"lstat() reported incorrect values for the symlink!");
} else {
tst_res(TPASS,
"lstat() reported correct values for the symlink!");
}
}
static void setup(void)
{
user_id = getuid();
group_id = getgid();
SAFE_TOUCH(TESTFILE, 0644, NULL);
SAFE_SYMLINK(TESTFILE, TESTSYML);
}
static void cleanup(void)
{
SAFE_UNLINK(TESTSYML);
}
static struct tst_test test = {
.test_all = run,
.setup = setup,
.cleanup = cleanup,
.needs_tmpdir = 1,
};