Replace head -c by dd

The '-c' (count bytes) option is not a POSIX.1 option, therefore it is
not available on OpenBSD.

Replace 'head -c' with 'dd'.

Signed-off-by: Silvio Rhatto <rhatto@riseup.net>

diff --git a/lib/keyringer/actions/pwgen b/lib/keyringer/actions/pwgen
index 5f254473091b44c1fb8c36720c6f710e91b42aa6..ab5cb8401a86d93497cb7dbbcde33367689a8166 100755 (executable)
--- a/lib/keyringer/actions/pwgen
+++ b/lib/keyringer/actions/pwgen
@@ -18,7 +18,7 @@ function keyringer_pwgen {
 
   # Strip possible newlines if output is wrapped.
   # Also strip trailing = signs as they add nothing to the password's entropy.
-  head -c $ENTROPY_BYTES $ENTROPY_SOURCE | base64 | tr -d '\n='
+  dd bs=1 count=$ENTROPY_BYTES if=$ENTROPY_SOURCE | base64 | tr -d '\n='
   echo
 }