You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
1.3 KiB
79 lines
1.3 KiB
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
* Ported to LTP: Wayne Boyer
|
|
*/
|
|
|
|
/*
|
|
* Testcase to check creat(2) fails with EACCES
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <pwd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include "tst_test.h"
|
|
|
|
#define DIRNAME "testdir"
|
|
#define FILENAME DIRNAME"/file1"
|
|
|
|
static uid_t nobody_uid;
|
|
|
|
static struct tcase {
|
|
const char *fname;
|
|
} tcases[] = {
|
|
{DIRNAME "/file"},
|
|
{FILENAME}
|
|
};
|
|
|
|
static void child_fn(unsigned int i)
|
|
{
|
|
SAFE_SETEUID(nobody_uid);
|
|
|
|
TEST(creat(tcases[i].fname, 0444));
|
|
|
|
if (TST_RET != -1) {
|
|
SAFE_UNLINK(tcases[i].fname);
|
|
tst_res(TFAIL, "call succeeded unexpectedly");
|
|
return;
|
|
}
|
|
|
|
if (TST_ERR != EACCES) {
|
|
tst_res(TFAIL | TTERRNO, "Expected EACCES");
|
|
return;
|
|
}
|
|
|
|
tst_res(TPASS, "call failed with EACCES as expected");
|
|
}
|
|
|
|
static void verify_creat(unsigned int i)
|
|
{
|
|
if (SAFE_FORK() == 0)
|
|
child_fn(i);
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
struct passwd *pw;
|
|
int fd;
|
|
|
|
pw = SAFE_GETPWNAM("nobody");
|
|
nobody_uid = pw->pw_uid;
|
|
|
|
SAFE_MKDIR(DIRNAME, 0700);
|
|
fd = SAFE_OPEN(FILENAME, O_RDWR | O_CREAT, 0444);
|
|
SAFE_CLOSE(fd);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.tcnt = ARRAY_SIZE(tcases),
|
|
.test = verify_creat,
|
|
.needs_tmpdir = 1,
|
|
.needs_root = 1,
|
|
.forks_child = 1,
|
|
.setup = setup,
|
|
};
|