1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* vi: set sw=4 ts=4: */
/*
* Stuff shared between init, reboot, halt, and poweroff
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* 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 <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/reboot.h>
#include <sys/syslog.h>
#include "busybox.h"
#include "init_shared.h"
extern int kill_init(int sig)
{
#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)
bb_error_msg_and_die("no process killed");
}
return(kill(*pid, sig));
#else
return(kill(1, sig));
#endif
}
#ifndef CONFIG_INIT
const char * const bb_shutdown_format = "\r%s\n";
extern int bb_shutdown_system(unsigned long magic)
{
int pri = LOG_KERN|LOG_NOTICE|LOG_FACMASK;
const char *message;
/* Don't kill ourself */
signal(SIGTERM,SIG_IGN);
signal(SIGHUP,SIG_IGN);
setpgrp();
/* Allow Ctrl-Alt-Del to reboot system. */
#ifndef RB_ENABLE_CAD
#define RB_ENABLE_CAD 0x89abcdef
#endif
reboot(RB_ENABLE_CAD);
openlog(bb_applet_name, 0, pri);
message = "\nThe system is going down NOW !!";
syslog(pri, "%s", message);
printf(bb_shutdown_format, message);
sync();
/* Send signals to every process _except_ pid 1 */
message = "Sending SIGTERM to all processes.";
syslog(pri, "%s", message);
printf(bb_shutdown_format, message);
kill(-1, SIGTERM);
sleep(1);
sync();
message = "Sending SIGKILL to all processes.";
syslog(pri, "%s", message);
printf(bb_shutdown_format, message);
kill(-1, SIGKILL);
sleep(1);
sync();
reboot(magic);
return 0; /* Shrug */
}
#endif
|
