* Licensed under GPL version 2, see file LICENSE in this tarball for details.
*/
-#include "busybox.h"
+#include "libbb.h"
#include <sys/reboot.h>
-int halt_main(int argc, char *argv[])
+#if ENABLE_FEATURE_WTMP
+#include <sys/utsname.h>
+#include <utmp.h>
+#endif
+
+int halt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int halt_main(int argc UNUSED_PARAM, char **argv)
{
static const int magic[] = {
#ifdef RB_HALT_SYSTEM
-RB_HALT_SYSTEM,
+ RB_HALT_SYSTEM,
#elif defined RB_HALT
-RB_HALT,
+ RB_HALT,
#endif
#ifdef RB_POWER_OFF
-RB_POWER_OFF,
+ RB_POWER_OFF,
#elif defined RB_POWERDOWN
-RB_POWERDOWN,
+ RB_POWERDOWN,
#endif
-RB_AUTOBOOT
+ RB_AUTOBOOT
};
- static const int signals[] = {SIGUSR1, SIGUSR2, SIGTERM};
+ static const smallint signals[] = { SIGUSR1, SIGUSR2, SIGTERM };
- char *delay = "hpr";
- int which, flags, rc = 1;
+ int delay = 0;
+ int which, flags, rc;
+#if ENABLE_FEATURE_WTMP
+ struct utmp utmp;
+ struct utsname uts;
+#endif
/* Figure out which applet we're running */
- for(which=0;delay[which]!=*applet_name;which++);
+ for (which = 0; "hpr"[which] != *applet_name; which++)
+ continue;
/* Parse and handle arguments */
- flags = getopt32(argc, argv, "d:nf", &delay);
- if (flags&1) sleep(xatou(delay));
- if (!(flags&2)) sync();
+ opt_complementary = "d+"; /* -d N */
+ flags = getopt32(argv, "d:nf" USE_FEATURE_WTMP("w"), &delay);
+
+ sleep(delay);
+
+#if ENABLE_FEATURE_WTMP
+ if (access(bb_path_wtmp_file, R_OK|W_OK) == -1) {
+ close(creat(bb_path_wtmp_file, 0664));
+ }
+ memset(&utmp, 0, sizeof(utmp));
+ utmp.ut_tv.tv_sec = time(NULL);
+ safe_strncpy(utmp.ut_user, "shutdown", UT_NAMESIZE);
+ utmp.ut_type = RUN_LVL;
+ safe_strncpy(utmp.ut_id, "~~", sizeof(utmp.ut_id));
+ safe_strncpy(utmp.ut_line, "~~", UT_LINESIZE);
+ if (uname(&uts) == 0)
+ safe_strncpy(utmp.ut_host, uts.release, sizeof(utmp.ut_host));
+ updwtmp(bb_path_wtmp_file, &utmp);
+
+ if (flags & 8) /* -w */
+ return EXIT_SUCCESS;
+#endif /* !ENABLE_FEATURE_WTMP */
+
+ if (!(flags & 2)) /* no -n */
+ sync();
/* Perform action. */
- if (ENABLE_INIT && !(flags & 4)) {
+ rc = 1;
+ if (!(flags & 4)) { /* no -f */
+//TODO: I tend to think that signalling linuxrc is wrong
+// pity original author didn't comment on it...
if (ENABLE_FEATURE_INITRD) {
- long *pidlist=find_pid_by_name("linuxrc");
- if (*pidlist>0) rc = kill(*pidlist,signals[which]);
- if (ENABLE_FEATURE_CLEAN_UP) free(pidlist);
+ pid_t *pidlist = find_pid_by_name("linuxrc");
+ if (pidlist[0] > 0)
+ rc = kill(pidlist[0], signals[which]);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(pidlist);
}
- if (rc) rc = kill(1,signals[which]);
- } else rc = reboot(magic[which]);
+ if (rc)
+ rc = kill(1, signals[which]);
+ } else
+ rc = reboot(magic[which]);
- if (rc) bb_error_msg("no");
+ if (rc)
+ bb_error_msg("no");
return rc;
}