Fix ordering of UTMP events: reboot, then runlevel

This patch fixes the ordering of UTMP events. The first event that is
expected in /var/run/utmp is reboot, next is the runlevel change to
the configured runlevel, e.g. from S --> 2.

Let the bootmisc plugin handle this, it knows when /var/run/utmp has
been created and is writable.  It is not the eact boot time, but close
enough for most usees.

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

finit.c

@@ -270,9 +270,6 @@ 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
 	 */

plugins/bootmisc.c

@@ -22,21 +22,19 @@
  */
 
 #include <string.h>
-#include <utmp.h>
 #include <lite/lite.h>
 
 #include "../config.h"
 #include "../finit.h"
 #include "../helpers.h"
 #include "../plugin.h"
+#include "../utmp-api.h"
 
 /*
  * Setup standard FHS 2.3 structure in /var, and write runlevel to UTMP
  */
 static void setup(void *UNUSED(arg))
 {
-	struct utmp entry;
-
 	_d("Setting up FHS structure in /var ...");
 	makedir("/var/cache",      0755);
 	makedir("/var/games",      0755);
@@ -77,8 +75,8 @@ static void setup(void *UNUSED(arg))
 	chmod("/var/log/lastlog", 0664);
 	chown("/var/log/lastlog", 0, getgroup("utmp"));
 
-	_d("Setting initial runlevel 'S', bootstrap ...");
-	runlevel_set(0, 0);	/* Bootstrap 'S' */
+	/* Set BOOT_TIME UTMP entry */
+	utmp_set_boot();
 
 #ifdef TOUCH_ETC_NETWORK_RUN_IFSTATE
 	touch("/etc/network/run/ifstate");

utmp-api.c

@@ -55,6 +55,8 @@ int utmp_set(int type, int pid, char *user, char *line, char *id)
 	ut.ut_tv.tv_sec = time(NULL);
 
 	setutent();
+	while (getutent())
+		;
 	result = pututline(&ut) ? 0 : 1;;
 	endutent();