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/* Copyright 2017 Maxwell Anselm.
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char** argv)
{
// need a command to run
if (argc <= 1) return 1;
// fork to disown the child
pid_t child;
if (child = fork())
{
if (child == -1)
{
perror("fork");
return 1;
}
printf("%ld\n", (long)child);
return 0;
}
// silence output
if (!freopen("/dev/null", "w", stdout)) fprintf(stdout, "Failed to silence stdout\n");
if (!freopen("/dev/null", "w", stderr)) fprintf(stderr, "Failed to silence stderr\n");
// run the command
execvp(argv[1], argv + 1);
// if execvp returns, it's an error
if (freopen("/dev/tty", "w", stderr)) perror(argv[0]);
return 1;
}
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