| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini halt 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 halt_main(int argc, char **argv) |
| { |
| #ifdef BB_FEATURE_LINUXRC |
| /* don't assume init's pid == 1 */ |
| pid_t *pid = find_pid_by_name("init"); |
| if (!pid || *pid<=0) { |
| pid_t *pid = find_pid_by_name("linuxrc"); |
| if (!pid || *pid<=0) |
| error_msg_and_die("no process killed"); |
| } |
| return(kill(*pid, SIGUSR1)); |
| #else |
| return(kill(1, SIGUSR1)); |
| #endif |
| } |