From 81feb4161950fb244fdadad857549fc105c68bda Mon Sep 17 00:00:00 2001
From: Axel Burri <axel@tty0.ch>
Date: Mon, 25 Apr 2016 16:58:56 +0200
Subject: [PATCH] ssh_filter_btrbk: allow access to "/" if no path restrictions
 are set.

---
 ssh_filter_btrbk.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ssh_filter_btrbk.sh b/ssh_filter_btrbk.sh
index 9b214da..2ddbf6e 100755
--- a/ssh_filter_btrbk.sh
+++ b/ssh_filter_btrbk.sh
@@ -46,12 +46,12 @@ reject_filtered_cmd()
 {
     # note that the backslash is NOT a metacharacter in a POSIX bracket expression!
     option_match='-[a-zA-Z-]+'       # matches short as well as long options
-    file_match='[0-9a-zA-Z_@+./-]+'  # matches file path (equal to $file_match in btrbk)
+    file_match='[0-9a-zA-Z_@+./-]*'  # matches file path (equal to $file_match in btrbk)
 
     if [[ -n "$restrict_path_list" ]]; then
 	# match any of restrict_path_list with or without trailing slash,
 	# or any file/directory (matching file_match) below restrict_path
-	path_match="(${restrict_path_list})(/|/${file_match})?"
+	path_match="(${restrict_path_list})(/${file_match})?"
     else
 	# match any absolute file/directory (matching file_match)
 	path_match="/${file_match}"