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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2001
* 07/2001 John George
* Copyright (c) 2022 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com>
*/
/*\
* [Description]
*
* Verify that system call utime() fails with
*
* - EACCES when times argument is NULL and user does not have rights to modify
* the file.
* - ENOENT when specified file does not exist.
* - EPERM when times argument is not NULL and user does not have rights to
* modify the file.
* - EROFS when the path resides on a read-only filesystem.
*/
#include <pwd.h>
#include <utime.h>
#include "tst_test.h"
#define TEMP_FILE "tmp_file"
#define MNT_POINT "mntpoint"
#define FILE_MODE 0644
#define TEST_USERNAME "nobody"
static const struct utimbuf times;
static struct tcase {
char *pathname;
int exp_errno;
const struct utimbuf *utimbuf;
char *err_desc;
} tcases[] = {
{TEMP_FILE, EACCES, NULL, "No write access"},
{"", ENOENT, NULL, "File not exist"},
{TEMP_FILE, EPERM, ×, "Not file owner"},
{MNT_POINT, EROFS, NULL, "Read-only filesystem"}
};
static void setup(void)
{
struct passwd *pw;
SAFE_TOUCH(TEMP_FILE, FILE_MODE, NULL);
pw = SAFE_GETPWNAM(TEST_USERNAME);
tst_res(TINFO, "Switching effective user ID to user: %s", pw->pw_name);
SAFE_SETEUID(pw->pw_uid);
}
static void run(unsigned int i)
{
struct tcase *tc = &tcases[i];
TST_EXP_FAIL(utime(tc->pathname, tc->utimbuf),
tc->exp_errno, "%s", tc->err_desc);
}
static struct tst_test test = {
.setup = setup,
.test = run,
.tcnt = ARRAY_SIZE(tcases),
.needs_root = 1,
.needs_tmpdir = 1,
.mntpoint = MNT_POINT,
.needs_rofs = 1
};
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