From 55eb3794fb4ad563102d5ab30c1d5337a599b2e5 Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Tue, 25 Mar 2008 14:06:05 +0000
Subject: Rework our folder structure so that we don't have OS specific dirs,
 making it easier to share init and conf files per OS.

---
 init.d/hostid.in | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 init.d/hostid.in

(limited to 'init.d/hostid.in')

diff --git a/init.d/hostid.in b/init.d/hostid.in
new file mode 100644
index 0000000..a058884
--- /dev/null
+++ b/init.d/hostid.in
@@ -0,0 +1,78 @@
+#!@PREFIX@/sbin/runscript
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+extra_commands="reset"
+hostid_file=${hostid_file:-/etc/hostid}
+
+depend()
+{
+	need root
+	before devd net
+	keyword nojail noprefix
+}
+
+_set()
+{
+	local id=0
+
+	if [ -n "$1" ]; then
+		id=$(echo "$1" | md5)
+		id="0x${id%????????????????????????}"
+	fi
+	ebegin "Setting Host ID: ${id}"
+	sysctl -w kern.hostid="${id}" >/dev/null
+	eend $? || return 1
+
+	if sysctl -n kern.hostuuid >/dev/null 2>&1; then
+		[ -n "$1" ] && id=$1
+		ebegin "Setting Host UUID: ${id}"
+		sysctl kern.hostuuid="${id}" >/dev/null
+		eend $? || return 1
+	fi
+
+}
+
+# First we check to see if there is a system UUID
+# If so then we use that and erase the hostid file,
+# otherwise we generate a random UUID.
+reset()
+{
+	local uuid=$(kenv smbios.system.uuid 2>/dev/null)
+	local x="[0-9a-f]"
+	local y="${x}${x}${x}${x}"
+	case "${uuid}" in
+		${y}${y}-${y}-${y}-${y}-${y}${y}${y});;
+		*) uuid=;;
+	esac
+
+	if [ -n "${uuid}" ]; then
+		rm -f "${hostid_file}"
+	else
+		uuid=$(uuidgen)
+		if [ -z "${uuid}" ]; then
+			eerror "Unable to generate a UUID"
+			return 1
+		fi
+		if ! echo "${uuid}" > "${hostid_file}"; then
+			eerror "Failed to store UUID in \`${hostid_file}'"
+			return 1
+		fi
+	fi
+
+	_set "${uuid}"
+}
+
+start()
+{
+	if [ -r "${hostid_file}" ]; then
+		_set $(cat "${hostid_file}") 
+	else
+		reset
+	fi
+}
+
+stop()
+{
+	_set
+}
-- 
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