mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-23 09:29:43 +02:00
42 lines
751 B
C
42 lines
751 B
C
|
/*
|
||
|
|
* lib/daemon.c - Helper functions for proper daemonification
|
||
|
|
*
|
||
|
|
* Written 2011 by Werner Almesberger
|
||
|
|
* Copyright 2011 Werner Almesberger
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include "daemon.h"
|
||
|
|
|
||
|
|
|
||
|
|
pid_t daemonize(void)
|
||
|
|
{
|
||
|
|
pid_t pid;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
pid = fork();
|
||
|
|
if (pid < 0) {
|
||
|
|
perror("fork");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
if (pid)
|
||
|
|
return pid;
|
||
|
|
if (setsid() < 0) {
|
||
|
|
perror("setsid");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
for (i = 0; i <= 2; i++)
|
||
|
|
(void) close(i);
|
||
|
|
(void) chdir("/");
|
||
|
|
return 0;
|
||
|
|
}
|