RT3462: Document actions when data==NULL
authorRich Salz <rsalz@openssl.org>
Mon, 8 Sep 2014 15:48:34 +0000 (11:48 -0400)
committerRich Salz <rsalz@openssl.org>
Fri, 3 Oct 2014 14:39:32 +0000 (10:39 -0400)
commit20d1c8111f5678f8d6211ce013368852b38eb819
treef39cd54b58d3d5c211bee0c65fd4346ac0fcb202
parentc578fe37d982e899f7644d041282c54b5f7f6247
RT3462: Document actions when data==NULL

If data is NULL, return the size needed to hold the
derived key.  No other API to do this, so document
the behavior.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 5aed169305941fb1eba15fd4bacc0f998b0e43f7)
doc/crypto/EVP_BytesToKey.pod