1 /* vi: set sw=4 ts=4: */
3 * Poweroff reboot and halt, oh my.
5 * Copyright 2006 by Rob Landley <rob@landley.net>
7 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
11 #include <sys/reboot.h>
13 #if ENABLE_FEATURE_WTMP
14 #include <sys/utsname.h>
18 int halt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
19 int halt_main(int argc UNUSED_PARAM, char **argv)
21 static const int magic[] = {
29 #elif defined RB_POWERDOWN
34 static const smallint signals[] = { SIGUSR1, SIGUSR2, SIGTERM };
37 int which, flags, rc = 1;
38 #if ENABLE_FEATURE_WTMP
43 /* Figure out which applet we're running */
44 for (which = 0; "hpr"[which] != *applet_name; which++)
47 /* Parse and handle arguments */
48 opt_complementary = "d+"; /* -d N */
49 flags = getopt32(argv, "d:nfw", &delay);
53 #if ENABLE_FEATURE_WTMP
54 if (access(bb_path_wtmp_file, R_OK|W_OK) == -1) {
55 close(creat(bb_path_wtmp_file, 0664));
57 memset(&utmp, 0, sizeof(utmp));
58 utmp.ut_tv.tv_sec = time(NULL);
59 safe_strncpy(utmp.ut_user, "shutdown", UT_NAMESIZE);
60 utmp.ut_type = RUN_LVL;
61 safe_strncpy(utmp.ut_id, "~~", sizeof(utmp.ut_id));
62 safe_strncpy(utmp.ut_line, "~~", UT_LINESIZE);
64 safe_strncpy(utmp.ut_host, uts.release, sizeof(utmp.ut_host));
65 updwtmp(bb_path_wtmp_file, &utmp);
66 #endif /* !ENABLE_FEATURE_WTMP */
68 if (flags & 8) /* -w */
70 if (!(flags & 2)) /* no -n */
74 if (ENABLE_INIT && !(flags & 4)) { /* no -f */
75 if (ENABLE_FEATURE_INITRD) {
76 pid_t *pidlist = find_pid_by_name("linuxrc");
78 rc = kill(pidlist[0], signals[which]);
79 if (ENABLE_FEATURE_CLEAN_UP)
83 rc = kill(1, signals[which]);
85 rc = reboot(magic[which]);