Gilles Peskine 159171b72a PK parse/write: support keylen=0 correctly
A 0-length buffer for the key is a legitimate edge case. Ensure that
it works, even with buf=NULL. Document the key and keylen parameters.

There are already test cases for parsing an empty buffer. A subsequent
commit will add tests for writing to an empty buffer.
2018-12-19 17:03:28 +01:00
..
2015-03-10 11:23:56 +00:00