1 files changed, 67 insertions, 0 deletions
diff --git a/udev-bugs/sys-fs/udev/files/seq_node.sh b/udev-bugs/sys-fs/udev/files/seq_node.sh
new file mode 100755
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+++ b/udev-bugs/sys-fs/udev/files/seq_node.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# Copyright 1999-2006 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# Author: Martin Schlemmer <azarah@gentoo.org>
+# $Header: /var/cvsroot/gentoo-x86/sys-fs/udev/files/seq_node.sh,v 1.2 2006/07/05 09:06:06 azarah Exp $
+
+# Stupid little script to emulate the depriciated '%e' directive of udev.
+# I am not sure why its supposidly broken, so this might need fixing if it
+# have the same issue as '%e'.
+#
+# Usage: seq_node.sh <root> <kernel name> <wanted node>
+#
+#  root        - root of udev (usuall /dev)
+#  kernel name - kernel name for device
+#  wanted node - needed free node
+#
+# Example: seq_node.sh %r %k cdrom
+#
+#  If called as above, it should return 'cdrom' if free, else 'cdrom1',
+#  'cdrom2', etc.  It also checks if an existing node was already created for
+#  the specific 'kernel name'.
+#
+
+root=$1
+kname=$2
+node=$3
+
+count=0
+new_node=${node}
+
+if [[ -z ${root} || -z ${kname} || -z ${node} ]] ; then
+	exit 1
+fi
+
+get_filename() {
+	local symlink=$1
+	local filename=
+
+	if [[ ! -L ${root}/${symlink} ]] ; then
+		echo "${symlink}"
+		return 0
+	fi
+
+	if type -p readlink &>/dev/null ; then
+		filename=$(readlink "${root}/${symlink}")
+	else
+		filename=$(perl -e "print readlink(\"${root}/${symlink}\")" 2>/dev/null)
+	fi
+
+	echo "${filename}"
+}
+
+while [[ -e "${root}/${new_node}" || -L "${root}/${new_node}" ]] ; do
+	# Check if existing node is the same as the kname we are looking
+	# for a new node, and return that instead
+	if [[ $(get_filename "${new_node}") == "${kname}" ]] ; then
+		break
+	fi
+
+	let "count += 1"
+	new_node="${node}${count}"
+done
+
+echo "${new_node}"
+
+exit 0
+