From 82da844b42ff83b2ebf944198e56ac2d81851897 Mon Sep 17 00:00:00 2001
From: William Hubbs <w.d.hubbs@gmail.com>
Date: Thu, 26 Oct 2017 13:11:12 -0500
Subject: [PATCH] implement "unsupervised" status

The unsupervised status is to be used when a supervisor of a supervised
service dies but leaves the service daemon itself running.
---
 sh/supervise-daemon.sh | 21 +++++----------------
 src/rc/rc-status.c     | 11 ++++++++++-
 2 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/sh/supervise-daemon.sh b/sh/supervise-daemon.sh
index d2cfe932..e5d8d461 100644
--- a/sh/supervise-daemon.sh
+++ b/sh/supervise-daemon.sh
@@ -58,22 +58,11 @@ supervise_stop()
 
 _check_supervised()
 {
-	[ "$RC_UNAME" != Linux ] && return 0
-	local child_pid="$(service_get_value "child_pid")"
-	local pid="$(cat ${pidfile})"
-	if [ -n "${child_pid}" ]; then
-		if ! [ -e "/proc/${pid}" ] && [ -e "/proc/${child_pid}" ]; then
-			if [ -e "/proc/self/ns/pid" ] && [ -e "/proc/${child_pid}/ns/pid" ]; then
-				local n1 n2
-				n1=$(readlink "/proc/self/ns/pid")
-				n2=$(readlink "/proc/${child_pid}/ns/pid")
-				if [ "${n1}" = "${n2}" ]; then
-					return 1
-				fi
-			else
-				return 1
-			fi
-		fi
+	local child_pid start_time
+	child_pid="$(service_get_value "child_pid")"
+	start_time="$(service_get_value "start_time")"
+	if [ -n "${child_pid}" ] && [ -n "${start_time}" ]; then
+		return 1
 	fi
 	return 0
 }
diff --git a/src/rc/rc-status.c b/src/rc/rc-status.c
index 9a094d47..d29f876a 100644
--- a/src/rc/rc-status.c
+++ b/src/rc/rc-status.c
@@ -128,6 +128,8 @@ print_service(const char *service)
 {
 	char status[60];
 	char uptime [40];
+	char *child_pid = NULL;
+	char *start_time = NULL;
 	int cols =  printf(" %s", service);
 	const char *c = ecolor(ECOLOR_GOOD);
 	RC_SERVICE state = rc_service_state(service);
@@ -147,7 +149,14 @@ print_service(const char *service)
 		    rc_service_daemons_crashed(service) &&
 		    errno != EACCES)
 		{
-			snprintf(status, sizeof(status), " crashed ");
+			child_pid = rc_service_value_get(service, "child_pid");
+			start_time = rc_service_value_get(service, "start_time");
+			if (start_time && child_pid)
+				snprintf(status, sizeof(status), " unsupervised ");
+			else
+				snprintf(status, sizeof(status), " crashed ");
+			free(child_pid);
+			free(start_time);
 		} else {
 			get_uptime(service, uptime, 40);
 			snprintf(status, sizeof(status), " started %s", uptime);