55 lines
1.5 KiB
Diff
55 lines
1.5 KiB
Diff
From c1609dd497bb8f8f083a258ff2f7702385eb940b Mon Sep 17 00:00:00 2001
|
|
From: Michal Soltys <soltys@ziu.info>
|
|
Date: Fri, 7 Oct 2011 22:23:49 +0200
|
|
Subject: [PATCH] convert_abs_rel() fixups
|
|
|
|
- IFS was not preserved, and modified value could leak to outside functions
|
|
|
|
- the '.' relative path should be returned for arguments such as /x/y/z
|
|
/x/y - but not for $1 == $2 ones
|
|
|
|
- $1 == $2 is self-looping link, so it returns final component of its
|
|
name
|
|
|
|
Signed-off-by: Michal Soltys <soltys@ziu.info>
|
|
---
|
|
dracut-functions | 18 +++++++++++-------
|
|
1 files changed, 11 insertions(+), 7 deletions(-)
|
|
|
|
diff --git a/dracut-functions b/dracut-functions
|
|
index c4f7f61..12dfa70 100755
|
|
--- a/dracut-functions
|
|
+++ b/dracut-functions
|
|
@@ -91,20 +91,24 @@ normalize_path() {
|
|
}
|
|
|
|
convert_abs_rel() {
|
|
- local __current __absolute __abssize __cursize __i __level __newpath
|
|
+ local __current __absolute __abssize __cursize __newpath="" __oldifs
|
|
+ local -i __i __level=0
|
|
# PS4='${BASH_SOURCE}@${LINENO}(${FUNCNAME[0]}): ';
|
|
|
|
- if [[ "$1" == "$2" ]]
|
|
- then
|
|
- echo "."
|
|
- return
|
|
- fi
|
|
+ # corner case #1 - self looping link
|
|
+ [[ "$1" == "$2" ]] && { echo "${1##*/}"; return; }
|
|
+
|
|
+ # corner case #2 - own dir link
|
|
+ [[ "${1%/*}" == "$2" ]] && { echo "."; return; }
|
|
+
|
|
__current=$(normalize_path "$1")
|
|
__absolute=$(normalize_path "$2")
|
|
- IFS="/"
|
|
|
|
+ __oldifs="$IFS"
|
|
+ IFS="/"
|
|
__current=($__current)
|
|
__absolute=($__absolute)
|
|
+ IFS="$__oldifs"
|
|
|
|
__abssize=${#__absolute[@]}
|
|
__cursize=${#__current[@]}
|