UTMP: Set BOOT_TIME record and add shutdown

This patch adds support for initializing /var/run/utmp with the initial
reboot as well as a shutdown record in the UTMP db.

Also, the run level change now properly records ~ and ~~ as line and id,
respectively, and the kernel release and time of each UTMP record is now
set properly.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

finit.c

@@ -42,8 +42,9 @@
 #include "plugin.h"
 #include "service.h"
 #include "sig.h"
-#include "tty.h"
 #include "sm.h"
+#include "tty.h"
+#include "utmp-api.h"
 
 int   debug     = 0;
 int   quiet     = QUIET_MODE;	/* Delayed disable of silent mode. */
@@ -269,6 +270,9 @@ int main(int argc, char* argv[])
 		mount("tmpfs", "/run", "tmpfs", MS_NODEV, "mode=0755,size=10%");
 	umask(022);
 
+	/* Set BOOT_TIME UTMP entry */
+	utmp_set_boot();
+
 	/*
 	 * Parse kernel parameters
 	 */