Add Copyright and license.

Merge a sentence from OpenSSL saying that BN_sub(3)
can do in-place manipulation.

1 files changed, 58 insertions, 2 deletions

diff --git a/src/lib/libcrypto/man/BN_add.3 b/src/lib/libcrypto/man/BN_add.3
index 1933be8c52..72343c47d3 100644
--- a/src/lib/libcrypto/man/BN_add.3
+++ b/src/lib/libcrypto/man/BN_add.3
@@ -1,6 +1,55 @@
-.\"     $OpenBSD: BN_add.3,v 1.3 2016/11/06 15:52:50 jmc Exp $
+.\"     $OpenBSD: BN_add.3,v 1.4 2016/11/20 15:57:50 schwarze Exp $
+.\"     OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100
 .\"
-.Dd $Mdocdate: November 6 2016 $
+.\" This file was written by Ulf Moeller <ulf@openssl.org>
+.\" and Bodo Moeller <bodo@openssl.org>.
+.\" Copyright (c) 2000, 2001, 2015 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 20 2016 $
 .Dt BN_ADD 3
 .Os
 .Sh NAME
@@ -146,6 +195,13 @@ from
 and places the result in
 .Fa r
 .Pq Li r=a-b .
+.Fa r
+may be the same
+.Vt BIGNUM
+as
+.Fa a
+or
+.Fa b .
 .Pp
 .Fn BN_mul
 multiplies