92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) 2018 Linux Test Project
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
*
|
|
* Ported to LTP: Wayne Boyer
|
|
* 21/04/2008 Renaud Lottiaux (Renaud.Lottiaux@kerlabs.com)
|
|
*/
|
|
|
|
/*
|
|
* NAME
|
|
* execve05.c
|
|
*
|
|
* DESCRIPTION
|
|
* This testcase tests the basic functionality of the execve(2) system
|
|
* call.
|
|
*
|
|
* ALGORITHM
|
|
* This tests the functionality of the execve(2) system call by spawning
|
|
* a few children, each of which would execute "execve_child" simultaneously,
|
|
* and finally the parent ensures that they terminated correctly.
|
|
*
|
|
* USAGE
|
|
* execve05 -i 5 -n 20
|
|
*/
|
|
|
|
#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE
|
|
#endif
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/wait.h>
|
|
#include <pwd.h>
|
|
|
|
#include "tst_test.h"
|
|
|
|
#define TEST_APP "execve_child"
|
|
|
|
static int nchild = 8;
|
|
|
|
static char *opt_nchild;
|
|
|
|
static const char *const resource_files[] = {
|
|
TEST_APP,
|
|
NULL,
|
|
};
|
|
|
|
static void do_child(void)
|
|
{
|
|
char *argv[3] = {TEST_APP, "canary", NULL};
|
|
|
|
TST_CHECKPOINT_WAIT(0);
|
|
|
|
TEST(execve(TEST_APP, argv, environ));
|
|
tst_res(TFAIL | TTERRNO, "execve() returned unexpected errno");
|
|
}
|
|
|
|
static void verify_execve(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nchild; i++) {
|
|
if (SAFE_FORK() == 0)
|
|
do_child();
|
|
}
|
|
|
|
TST_CHECKPOINT_WAKE2(0, nchild);
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
if (opt_nchild)
|
|
nchild = SAFE_STRTOL(opt_nchild, 1, INT_MAX);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.test_all = verify_execve,
|
|
.options = (struct tst_option[]) {
|
|
{"n:", &opt_nchild, "-n numbers of children"},
|
|
{}
|
|
},
|
|
.forks_child = 1,
|
|
.child_needs_reinit = 1,
|
|
.needs_checkpoints = 1,
|
|
.resource_files = resource_files,
|
|
.setup = setup,
|
|
};
|