int main(int ac, char **av)
{
int lc;
char *msg;
uid_t uid;
if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
setup();
uid = 1;
while (!getpwuid(uid))
uid++;
UID16_CHECK(uid, setfsuid, cleanup);
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
TEST(SETFSUID(cleanup, uid));
if (TEST_RETURN == -1) {
tst_resm(TFAIL | TTERRNO,
"setfsuid() failed unexpectedly");
continue;
}
if (!STD_FUNCTIONAL_TEST) {
tst_resm(TPASS, "setfsuid() succeeded");
continue;
}
if (TEST_RETURN == uid) {
tst_resm(TFAIL,
"setfsuid() returned %ld, expected anything but %d",
TEST_RETURN, uid);
} else {
tst_resm(TPASS, "setfsuid() returned expected value : "
"%ld", TEST_RETURN);
}
}
cleanup();
tst_exit();
}
int main(int ac, char **av)
{
int lc;
uid_t uid;
tst_parse_opts(ac, av, NULL, NULL);
setup();
uid = 1;
while (!getpwuid(uid))
uid++;
UID16_CHECK(uid, setfsuid, cleanup);
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
TEST(SETFSUID(cleanup, uid));
if (TEST_RETURN == -1) {
tst_resm(TFAIL | TTERRNO,
"setfsuid() failed unexpectedly");
continue;
}
if (TEST_RETURN == uid) {
tst_resm(TFAIL,
"setfsuid() returned %ld, expected anything but %d",
TEST_RETURN, uid);
} else {
tst_resm(TPASS, "setfsuid() returned expected value : "
"%ld", TEST_RETURN);
}
}
cleanup();
tst_exit();
}
static void do_master_child(void)
{
int pid;
int status;
if (SETFSUID(NULL, ltpuser->pw_uid) == -1) {
perror("setfsuid failed");
exit(TFAIL);
}
/* Test 1: Check the process with new uid cannot open the file
* with RDWR permissions.
*/
TEST(open(testfile, O_RDWR));
if (TEST_RETURN != -1) {
close(TEST_RETURN);
printf("open succeeded unexpectedly\n");
exit(TFAIL);
}
if (TEST_ERRNO == EACCES) {
printf("open failed with EACCESS as expected\n");
} else {
printf("open returned unexpected errno - %d\n", TEST_ERRNO);
exit(TFAIL);
}
/* Test 2: Check a son process cannot open the file
* with RDWR permissions.
*/
pid = FORK_OR_VFORK();
if (pid < 0) {
perror("Fork failed");
exit(TFAIL);
}
if (pid == 0) {
/* Test to open the file in son process */
TEST(open(testfile, O_RDWR));
if (TEST_RETURN != -1) {
close(TEST_RETURN);
printf("open succeeded unexpectedly\n");
exit(TFAIL);
}
if (TEST_ERRNO == EACCES) {
printf("open failed with EACCESS as expected\n");
} else {
printf("open returned unexpected errno - %d\n",
TEST_ERRNO);
exit(TFAIL);
}
} else {
/* Wait for son completion */
if (waitpid(pid, &status, 0) == -1) {
perror("waitpid failed");
exit(TFAIL);
}
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
exit(WEXITSTATUS(status));
}
/* Test 3: Fallback to initial uid and check we can again open
* the file with RDWR permissions.
*/
tst_count++;
if (SETFSUID(NULL, 0) == -1) {
perror("setfsuid failed");
exit(TFAIL);
}
TEST(open(testfile, O_RDWR));
if (TEST_RETURN == -1) {
perror("open failed unexpectedly");
exit(TFAIL);
} else {
printf("open call succeeded\n");
close(TEST_RETURN);
}
exit(TPASS);
}
