/*
* Test issues with vfork().
*
* Copyright (C) 2013-2018 Simon Ruderich
*
* 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 3 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 .
*/
#include
#include
#include
#include
#include
#include "../src/compiler.h"
int main(int argc unused, char **argv unused) {
pid_t pid;
fprintf(stderr, "Before vfork().\n");
pid = vfork();
if (pid == 0) {
/* This violates the POSIX standard! The "child" is only allowed to
* modify the result of vfork(), e.g. the pid variable. Some programs
* (e.g. gdb) do it anyway so we have to workaround it. */
dup2(STDOUT_FILENO, STDERR_FILENO);
_exit(2);
}
fprintf(stderr, "After vfork().\n");
puts("");
return EXIT_SUCCESS;
}