From ad4fc5f13819f793387a533deb42cb7505abb3c1 Mon Sep 17 00:00:00 2001
From: Steffen Vogel <info@steffenvogel.de>
Date: Wed, 15 Aug 2012 00:08:37 +0200
Subject: [PATCH] added first version of wake on lan script

---
 bash/boot | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100755 bash/boot

diff --git a/bash/boot b/bash/boot
new file mode 100755
index 0000000..9697ec4
--- /dev/null
+++ b/bash/boot
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+IP_REGEX="[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}"
+
+E_BADARGS=65
+if [[ ! -n "$1" ]]; then
+	echo "Usage: $(basename $0) HOST"
+	exit $E_BADARGS
+fi
+
+if [[ $1 =~ ${IP_REGEX} ]]; then
+	IP=$1
+else
+	IP=$(dig +short $1 | head -n1)
+
+	if [[ -z ${IP} ]]; then
+		echo "failed to lookup ip"
+		exit 4
+	else
+		echo "$1 has ip: ${IP}"
+	fi
+fi
+
+
+# do a ping to trigger ARP request
+ping -c1 -q ${IP} &>/dev/null
+if [[ $? -eq 0 ]]; then
+	echo "host is alive!"
+#	exit 2
+fi
+
+MAC=$(grep "^${IP}\ " /proc/net/arp | awk '{print $4}')
+
+if [[ -z ${MAC} ]]; then
+	echo "no mac found!"
+	exit 1
+fi
+
+echo "$1 has mac: ${MAC}"
+
+
+if [[ $(id -un) != "root" ]]; then
+	echo "$(basename $0) requires root privileges!"
+	exit 3
+fi
+
+etherwake ${MAC}
+
+echo "wol packet has been sent"