| /* |
| * Copyright (c) 2018 Linux Test Project |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * 07/2001 Ported by Wayne Boyer |
| * 21/04/2008 Renaud Lottiaux (Renaud.Lottiaux@kerlabs.com) |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| /* |
| * 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 struct tst_option exe_options[] = { |
| {"n:", &opt_nchild, "-n numbers of children"}, |
| {NULL, NULL, NULL} |
| }; |
| |
| 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 | TERRNO, "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 = exe_options, |
| .forks_child = 1, |
| .child_needs_reinit = 1, |
| .needs_checkpoints = 1, |
| .resource_files = resource_files, |
| .setup = setup, |
| }; |