b24d65659f
that into a pid_t, which is unsigned on a number archs. Furthermore, find_pid_by_name() would _never_ return an error if the intended proces was "init", but instead would return 1, meaning we would fail to work on 2.4.x kernels running an initrd... -Erik
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini poweroff implementation for busybox
|
|
*
|
|
*
|
|
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.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, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include "busybox.h"
|
|
#include <signal.h>
|
|
|
|
extern int poweroff_main(int argc, char **argv)
|
|
{
|
|
#ifdef CONFIG_FEATURE_INITRD
|
|
/* don't assume init's pid == 1 */
|
|
long *pid = find_pid_by_name("init");
|
|
if (!pid || *pid<=0) {
|
|
pid = find_pid_by_name("linuxrc");
|
|
if (!pid || *pid<=0)
|
|
error_msg_and_die("no process killed");
|
|
}
|
|
return(kill(*pid, SIGUSR2));
|
|
#else
|
|
return(kill(1, SIGUSR2));
|
|
#endif
|
|
}
|