autoupdater: make cleanup more secure

2014-01-12 18:58:41 +01:00 · 2014-01-12 18:58:41 +01:00 · bca358bdee
parent 0d01eb472a
commit bca358bdee
1 changed files with 4 additions and 4 deletions
--- a/gluon/gluon-autoupdater/files/usr/sbin/autoupdater
+++ b/gluon/gluon-autoupdater/files/usr/sbin/autoupdater
@ -32,10 +32,10 @@ newer_than() {
 }

 cleanup() {
-  rm -f $manifest
-  rm -f $fw_image
-  rm -f $manifest_upper
-  rm -f $manifest_lower
+  [ -f "$manifest" ] && rm -f "$manifest"
+  [ -f "$fw_image" ] && rm -f "$fw_image"
+  [ -f "$manifest_upper" ] && rm -f "$manifest_upper"
+  [ -f "$manifest_lower" ] && rm -f "$manifest_lower"
 }

 fail() {