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/hwclock.in | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 init.d/hwclock.in

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

diff --git a/init.d/hwclock.in b/init.d/hwclock.in
new file mode 100644
index 00000000..9b1a87d5
--- /dev/null
+++ b/init.d/hwclock.in
@@ -0,0 +1,137 @@
+#!@PREFIX@/sbin/runscript
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+extra_commands="save show"
+
+description="Sets the local clock to UTC or Local Time." 
+description_save="Saves the current time in the BIOS."
+description_show="Displays the current time in the BIOS."
+
+clock_adjfile=${clock_adjfile:-${CLOCK_ADJFILE}}
+clock_args=${clock_args:-${CLOCK_OPTS}}
+clock_systohc=${clock_systohc:-${CLOCK_SYSTOHC}}
+
+clock=${clock:-${CLOCK:-UTC}}
+if [ "${clock}" = "UTC" ]; then
+	utc="UTC"
+	utc_cmd="--utc"
+else
+	utc="Local Time"
+	utc_cmd="--localtime"
+fi
+
+depend()
+{
+	provide clock
+	if yesno ${clock_adjfile}; then
+		use root
+	else
+		before *
+	fi
+	keyword noopenvz noprefix nouml novserver noxenu
+}
+
+setupopts()
+{
+	case "$(uname -m)" in
+		s390*)
+			utc="s390"
+			;;
+		*)
+			if [ -e /proc/devices ] && \
+				grep -q " cobd$" /proc/devices
+			then
+				utc="coLinux"
+			fi
+			;;
+	esac
+
+	case "${utc}" in
+		UTC|Local" "Time);;
+		*) unset utc_cmd;;
+	esac
+}
+
+# hwclock doesn't always return non zero on error
+_hwclock()
+{
+	local err="$(hwclock "$@" 2>&1 >/dev/null)"
+
+	[ -z "${err}" ] && return 0
+	echo "${err}" >&2
+	return 1
+}
+
+start()
+{
+	local retval=0 errstr=""
+	setupopts
+
+	if [ -z "${utc_cmd}" ]; then
+		ewarn "Not setting clock for ${utc} system"
+		return 0
+	fi
+
+	ebegin "Setting system clock using the hardware clock [${utc}]"
+	if [ -e /proc/modules -a ! -e /dev/rtc ]; then
+		modprobe -q rtc || modprobe -q genrtc
+	fi
+
+	if [ -e /etc/adjtime ] && yesno ${clock_adjfile}; then
+		_hwclock --adjust ${utc_cmd}
+		retval=$((${retval} + $?))
+	fi
+	
+	# If setting UTC, don't bother to run hwclock when first booting
+	# as that's the default
+	if [ "${PREVLEVEL}" != "N" -o \
+		"${utc_cmd}" != "--utc" -o \
+		-n "${clock_args}" ];
+	then
+		_hwclock --hctosys ${utc_cmd} ${clock_args}
+		retval=$((${retval} + $?))
+	fi
+	
+	eend ${retval} "Failed to set the system clock"
+
+	return 0
+}
+
+stop()
+{
+	# Don't tweak the hardware clock on LiveCD halt.
+	[ -n "${CDBOOT}" ] && return 0
+	yesno ${clock_systohc} || return 0
+
+	local retval=0 errstr=""
+	setupopts
+
+	[ -z "${utc_cmd}" ] && return 0
+
+	ebegin "Setting hardware clock using the system clock" "[${utc}]"
+
+	if ! yesno "${clock_adjfile}"; then
+		# Some implementations don't handle adjustments
+		if LC_ALL=C hwclock --help | grep -q "\-\-noadjfile"; then
+			utc_cmd="${utc_cmd} --noadjfile"
+		fi
+	fi
+
+	_hwclock --systohc ${utc_cmd} ${clock_args}
+	retval=$?
+
+	eend ${retval} "Failed to sync clocks" 
+}
+
+save()
+{
+	clock_systohc="yes"
+	stop
+}
+
+show()
+{
+	setupopts
+	hwclock --show "${utc_cmd}" ${clock_args} 
+}
-- 
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