93 lines
1.9 KiB
C
93 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
*/
|
|
|
|
/*
|
|
* DESCRIPTION
|
|
* Testcase to check the basic functionality of the getcwd(2)
|
|
* system call on a symbolic link.
|
|
*
|
|
* ALGORITHM
|
|
* 1) create a directory, and create a symbolic link to it at the
|
|
* same directory level.
|
|
* 2) get the working directory of a directory, and its pathname.
|
|
* 3) get the working directory of a symbolic link, and its pathname,
|
|
* and its readlink info.
|
|
* 4) compare the working directories and link information.
|
|
*/
|
|
|
|
#define _GNU_SOURCE 1
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <stdlib.h>
|
|
#include "tst_test.h"
|
|
|
|
static char dir[BUFSIZ], dir_link[BUFSIZ];
|
|
|
|
static void verify_getcwd(void)
|
|
{
|
|
char link[BUFSIZ];
|
|
char *res1 = NULL;
|
|
char *res2 = NULL;
|
|
|
|
SAFE_CHDIR(dir);
|
|
|
|
res1 = getcwd(NULL, 0);
|
|
if (!res1) {
|
|
tst_res(TFAIL | TERRNO, "getcwd() failed to "
|
|
"get working directory of a directory");
|
|
goto end;
|
|
}
|
|
|
|
SAFE_CHDIR("..");
|
|
SAFE_CHDIR(dir_link);
|
|
|
|
res2 = getcwd(NULL, 0);
|
|
if (!res2) {
|
|
tst_res(TFAIL | TERRNO, "getcwd() failed to get "
|
|
"working directory of a symbolic link");
|
|
goto end;
|
|
}
|
|
|
|
if (strcmp(res1, res2)) {
|
|
tst_res(TFAIL,
|
|
"getcwd() got mismatched working directories (%s, %s)",
|
|
res1, res2);
|
|
goto end;
|
|
}
|
|
|
|
SAFE_CHDIR("..");
|
|
SAFE_READLINK(dir_link, link, sizeof(link));
|
|
|
|
if (strcmp(link, SAFE_BASENAME(res1))) {
|
|
tst_res(TFAIL,
|
|
"link information didn't match the working directory");
|
|
goto end;
|
|
}
|
|
|
|
tst_res(TPASS, "getcwd() succeeded on a symbolic link");
|
|
|
|
end:
|
|
free(res1);
|
|
free(res2);
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
sprintf(dir, "getcwd1.%d", getpid());
|
|
sprintf(dir_link, "getcwd2.%d", getpid());
|
|
SAFE_MKDIR(dir, 0755);
|
|
SAFE_SYMLINK(dir, dir_link);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.needs_tmpdir = 1,
|
|
.setup = setup,
|
|
.test_all = verify_getcwd
|
|
};
|