mirror of
https://gitlab.com/apparmor/apparmor
synced 2025-08-22 10:07:12 +00:00
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/*
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* Copyright (C) 2022 Canonical, Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, contact Canonical Ltd.
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*/
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#define _GNU_SOURCE
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#include <sched.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stdio.h>
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#include <stdlib.h>
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static int child(void *arg)
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{
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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#define STACK_SIZE (1024 * 1024)
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static char child_stack[STACK_SIZE];
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int main(int argc, char *argv[])
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{
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pid_t child_pid;
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int child_exit;
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child_pid = clone(child, child_stack + STACK_SIZE,
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CLONE_NEWUSER | SIGCHLD, NULL);
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if (child_pid == -1) {
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perror("FAIL - clone");
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return EXIT_FAILURE;
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}
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if (waitpid(child_pid, &child_exit, 0) == -1) {
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perror("FAIL - waitpid");
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return EXIT_FAILURE;
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}
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if (WIFEXITED(child_exit)) {
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if (WEXITSTATUS(child_exit) != EXIT_SUCCESS) {
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fprintf(stderr, "FAIL - child ended with failure %d\n", child_exit);
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return EXIT_FAILURE;
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}
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}
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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