Add Copyright and license.

Mention that EC_GROUP_free(3) and EC_GROUP_clear_free(3) accept NULL.

1 files changed, 60 insertions, 2 deletions

diff --git a/src/lib/libcrypto/man/EC_GROUP_new.3 b/src/lib/libcrypto/man/EC_GROUP_new.3
index 7fc2b21980..b769ea4fc1 100644
--- a/src/lib/libcrypto/man/EC_GROUP_new.3
+++ b/src/lib/libcrypto/man/EC_GROUP_new.3
@@ -1,6 +1,54 @@
-.\"     $OpenBSD: EC_GROUP_new.3,v 1.3 2016/11/15 09:25:45 jmc Exp $
+.\"     $OpenBSD: EC_GROUP_new.3,v 1.4 2016/11/22 01:42:26 schwarze Exp $
+.\"     OpenSSL 9b86974e Mon Aug 17 15:21:33 2015 -0400
 .\"
-.Dd $Mdocdate: November 15 2016 $
+.\" This file was written by Matt Caswell <matt@openssl.org>.
+.\" Copyright (c) 2013 The OpenSSL Project.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\"
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\"
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" 3. All advertising materials mentioning features or use of this
+.\"    software must display the following acknowledgment:
+.\"    "This product includes software developed by the OpenSSL Project
+.\"    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+.\"
+.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+.\"    endorse or promote products derived from this software without
+.\"    prior written permission. For written permission, please contact
+.\"    openssl-core@openssl.org.
+.\"
+.\" 5. Products derived from this software may not be called "OpenSSL"
+.\"    nor may "OpenSSL" appear in their names without prior written
+.\"    permission of the OpenSSL Project.
+.\"
+.\" 6. Redistributions of any form whatsoever must retain the following
+.\"    acknowledgment:
+.\"    "This product includes software developed by the OpenSSL Project
+.\"    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+.\" OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: November 22 2016 $
 .Dt EC_GROUP_NEW 3
 .Os
 .Sh NAME
@@ -210,11 +258,21 @@ of the curve to be constructed.
 .Fn EC_GROUP_free
 frees the memory associated with the
 .Vt EC_GROUP .
+If
+.Fa group
+is a
+.Dv NULL
+pointer, no action occurs.
 .Pp
 .Fn EC_GROUP_clear_free
 destroys any sensitive data held within the
 .Vt EC_GROUP
 and then frees its memory.
+If
+.Fa group
+is a
+.Dv NULL
+pointer, no action occurs.
 .Sh RETURN VALUES
 All
 .Fn EC_GROUP_new*