X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fpath_id%2Fpath_id;h=0fad30cfb257d3468ce047efaf1776994be04f3c;hp=ee26dc1f8aa231d4cef773d8a20da12989d4ba74;hb=b2946df41965632c80012921a2cacbf83bc3dd80;hpb=87cf9f5aacf65d0bc186e5e525026cc760290379

diff --git a/extras/path_id/path_id b/extras/path_id/path_id
old mode 100644
new mode 100755
index ee26dc1f8..0fad30cfb
--- a/extras/path_id/path_id
+++ b/extras/path_id/path_id
@@ -95,7 +95,11 @@ handle_pci () {
 				;;
 		esac
 	done
-	d="pci-$pci_id-$d"
+	if [ "$d" ]; then
+		d="pci-$pci_id-$d"
+	else
+		d="pci-$pci_id"
+	fi
 	D="$host_dev_path"
 	RESULT=0
 }
@@ -427,35 +431,45 @@ handle_device () {
 	full_sysfs_path="$SYSFS$DEVPATH"
 	case "$DEVPATH" in
 		/devices/*)
-			# new sysfs layout
+			full_sysfs_path="${full_sysfs_path%/*}"
+			# skip parent device of the same subsystem
 			if [ -L $full_sysfs_path/subsystem ]; then
-				full_sysfs_path="${full_sysfs_path%/*}"
 				cd "$full_sysfs_path/subsystem";
 				subsys="`pwd -P`"
 				cd "$OPWD"
 				subsys="${subsys##*/}"
-				if [ "$subsys" = "block" ]; then
-					# parent is "block", it's a partition, move one up
-				full_sysfs_path="${full_sysfs_path%/*}"
+				if [ "$subsys" = "$TYPE" ]; then
+					: skip same subsystem parent
+					full_sysfs_path="${full_sysfs_path%/*}"
 				fi
-				cd $full_sysfs_path
 			fi
+			# skip subsystem directory
+			subsys="${full_sysfs_path##*/}"
+			if [ "$subsys" = "$TYPE" ]; then
+				: skip subsystem directory
+				full_sysfs_path="${full_sysfs_path%/*}"
+			fi
+			cd $full_sysfs_path
 			;;
 		*)
 			# old sysfs layout
-			if [ ! -L $full_sysfs_path/device ] ; then
-				if [ -f $full_sysfs_path/range ] ; then return ; fi
+			if [ ! -L $full_sysfs_path/device ]; then
 				full_sysfs_path="${full_sysfs_path%/*}"
 				: full_sysfs_path "$full_sysfs_path"
-				if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ] ; then
+				if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ]; then
 					return
 				fi
 			fi
-			cd $full_sysfs_path/device
+			if [ -L $full_sysfs_path/device/device ]; then
+				cd $full_sysfs_path/device/device
+			else
+				cd $full_sysfs_path/device
+			fi
 			;;
 	esac
 	full_sysfs_device_path="`pwd -P`"
 	cd "$OPWD"
+
 	D=$full_sysfs_device_path
 	while [ ! -z "$D" ] ; do
 		case "$D" in
@@ -539,7 +553,7 @@ handle_device () {
 				;;
 			*)
 				mode=""
-			   ;;
+				;;
 		esac
 		if [ "$d" ]; then
 			d="$d-${rewind}st${mode}"
@@ -547,22 +561,9 @@ handle_device () {
 	fi
 }
 
-case "$TYPE" in
-	block)
-		handle_device
-		echo "ID_PATH=$d"
-		;;
-	scsi_tape)
-		handle_device
-		echo "ID_PATH=$d"
-		;;
-	input)
-		handle_device
-		echo "ID_PATH=$d"
-		;;
-	*)
-		RESULT=1
-		;;
-esac
-
-exit $RESULT
+handle_device
+if [ -z "$d" ]; then
+	exit 1
+fi
+echo "ID_PATH=$d"
+exit 0