crypt-lib.sh: moved IFS=: from before 'read' to before 'while'

Some versions of dash don't behave as expected with code like this:

while IFS=: read a b c; do
    blah
done

Thanks to Eric Mertens who identified the issue.

diff --git a/modules.d/90crypt/crypt-lib.sh b/modules.d/90crypt/crypt-lib.sh
index 9083acaad75faa042ca1035de2cff0f34fd097dc..09e793da6f4cd65d298503a7cf54d4e88d252866 100644 (file)
--- a/modules.d/90crypt/crypt-lib.sh
+++ b/modules.d/90crypt/crypt-lib.sh
@@ -108,7 +108,8 @@ getkey() {
     [ -z "$keys_file" -o -z "$for_dev" ] && die 'getkey: wrong usage!'
     [ -f "$keys_file" ] || return 1
 
-    while IFS=':' read luks_dev key_dev key_path; do
+    local IFS=:
+    while read luks_dev key_dev key_path; do
         if match_dev "$luks_dev" "$for_dev"; then
             echo "${key_dev}:${key_path}"
             return 0