runit-2.1.2-pid1exit.patch

diff -ur admin.org/runit-2.1.2/src/runit.c admin/runit-2.1.2/src/runit.c
--- admin.org/runit-2.1.2/src/runit.c	2014-08-10 18:22:35.000000000 +0000
+++ admin/runit-2.1.2/src/runit.c	2014-09-18 20:07:14.000000000 +0000
@@ -339,6 +339,13 @@
   }
 #endif
 
+
+  if ((stat(PID1EXIT, &s) != -1) && (s.st_mode & S_IXUSR)) {
+    strerr_warn2(INFO, "PID 1 exiting.", 0);
+    sync();
+	strerr_die2x(0, INFO, "exit.");
+  }
+
   for (;;) sig_pause();
   /* not reached */
   strerr_die2x(0, INFO, "exit.");
diff -ur admin.org/runit-2.1.2/src/runit.h admin/runit-2.1.2/src/runit.h
--- admin.org/runit-2.1.2/src/runit.h	2014-08-10 18:22:35.000000000 +0000
+++ admin/runit-2.1.2/src/runit.h	2014-09-18 20:07:16.000000000 +0000
@@ -2,3 +2,4 @@
 #define STOPIT "/etc/runit/stopit"
 #define REBOOT "/etc/runit/reboot"
 #define CTRLALTDEL "/etc/runit/ctrlaltdel"
+#define PID1EXIT "/etc/runit/pid1exit"
diff -ur admin.org/runit-2.1.2/doc/runit.8.html admin/runit-2.1.2/doc/runit.8.html
--- admin.org/runit-2.1.2/doc/runit.8.html      2014-08-10 18:22:36.000000000 +0000
+++ admin/runit-2.1.2/doc/runit.8.html  2014-09-18 21:09:01.000000000 +0000
@@ -33,7 +33,9 @@
 stage 2 if it is running, and runs <i>/etc/runit/3</i>. The systems tasks to shutdown
 and possibly halt or reboot the system are done here. If stage 3 returns,
 <b>runit</b> checks if the file <i>/etc/runit/reboot</i> exists and has the execute by
-owner permission set. If so, the system is rebooted, it&rsquo;s halted otherwise.
+owner permission set. If so, the system is rebooted.  If <i>/etc/runit/pid1exit</i> exists and
+has the execute by owner permission set, runit will exit.  It&rsquo;s halted otherwise.  Ensure
+you understand the implications of PID 1 exiting before instructing <b>runit</b> to do so.

 <h2><a name='sect6'>Ctrl-alt-del</a></h2>
 If <b>runit</b> receives the ctrl-alt-del keyboard request and the file
diff -ur admin.org/runit-2.1.2/man/runit.8 admin/runit-2.1.2/man/runit.8
--- admin.org/runit-2.1.2/man/runit.8   2014-08-10 18:22:34.000000000 +0000
+++ admin/runit-2.1.2/man/runit.8       2014-09-18 21:20:24.000000000 +0000
@@ -47,7 +47,15 @@
 checks if the file
 .I /etc/runit/reboot
 exists and has the execute by owner permission set.
-If so, the system is rebooted, it's halted otherwise.
+If so, the system is rebooted.  If the file
+.I /etc/runit/pid1exit
+exists and has the execute by owner permission set,
+.B runit
+will exit.  It's halted otherwise.  Ensure you understand the implications
+of PID 1 exiting before instructing
+.B runit
+to do so.
+
 .SH CTRL-ALT-DEL
 If
 .B runit