#!/bin/sh
# BSD LICENSE
-#
-# Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
+#
+# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
# All rights reserved.
-#
+#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
-#
+#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
-#
+#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
exit 1
fi
-REL1=${1#/}
-REL2=${2#/}
+# get the real absolute path, derefencing symlinks
+ABS1=$(readlink -f $1)
+ABS2=$(readlink -f $2)
+
+# remove leading slash
+REL1=${ABS1#/}
+REL2=${ABS2#/}
left1=${REL1%%/*}
right1=${REL1#*/}
prev_right2=$REL2
prev_left2=
+prefix=
+
while [ "${right1}" != "" -a "${right2}" != "" ]; do
if [ "$left1" != "$left2" ]; then