transform: add ->valid() function
authorIan Jackson <ijackson@chiark.greenend.org.uk>
Thu, 21 Jun 2012 01:20:39 +0000 (02:20 +0100)
committerIan Jackson <ijackson@chiark.greenend.org.uk>
Thu, 12 Jul 2012 19:02:21 +0000 (20:02 +0100)
commitb67dab18678d3628929999fc77c48a5bc660e5e2
treeea79ec9d170086db83dd074c90ff8597e7794ce7
parentc90cc2a73eabbda9887e67898389acbd759d7270
transform: add ->valid() function

This allows outside callers to find out whether the transform has been
keyed, and can therefore relieve them of the need to track this
separately.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
secnet.h
transform.c