Add Copyright and license.

Mention that some *_free(3) functions accept NULL.
Delete useless statements about void functions not retuning a value.

3 files changed, 170 insertions, 28 deletions

diff --git a/lib/libcrypto/man/BN_mod_mul_montgomery.3 b/lib/libcrypto/man/BN_mod_mul_montgomery.3
index ca5f869d4fa..2012860ec70 100644
--- a/lib/libcrypto/man/BN_mod_mul_montgomery.3
+++ b/lib/libcrypto/man/BN_mod_mul_montgomery.3
@@ -1,6 +1,54 @@
-.\"	$OpenBSD: BN_mod_mul_montgomery.3,v 1.3 2016/11/08 22:19:45 jmc Exp $
+.\"	$OpenBSD: BN_mod_mul_montgomery.3,v 1.4 2016/11/20 17:47:18 schwarze Exp $
+.\"	OpenSSL 6859cf74 Sep 25 13:33:28 2002 +0000
 .\"
-.Dd $Mdocdate: November 8 2016 $
+.\" This file was written by Ulf Moeller <ulf@openssl.org>.
+.\" Copyright (c) 2000 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_MOD_MUL_MONTGOMERY 3
 .Os
 .Sh NAME
@@ -95,6 +143,11 @@ frees the components of the
 and, if it was created by
 .Fn BN_MONT_CTX_new ,
 also the structure itself.
+If
+.Fa mont
+is a
+.Dv NULL
+pointer, no action occurs.
 .Pp
 .Fn BN_mod_mul_montgomery
 computes
@@ -149,17 +202,12 @@ otherwise the result will be outside the expected range.
 .Sh RETURN VALUES
 .Fn BN_MONT_CTX_new
 returns the newly allocated
-.Vt BN_MONT_CTX ,
-and
+.Vt BN_MONT_CTX
+or
 .Dv NULL
 on error.
 .Pp
-.Fn BN_MONT_CTX_init
-and
-.Fn BN_MONT_CTX_free
-return no values.
-.Pp
-For the other functions, 1 is returned for success, 0 on error.
+For the other functions, 1 is returned for success or 0 on error.
 The error codes can be obtained by
 .Xr ERR_get_error 3 .
 .Sh SEE ALSO
diff --git a/lib/libcrypto/man/BN_mod_mul_reciprocal.3 b/lib/libcrypto/man/BN_mod_mul_reciprocal.3
index 115cdcbbfea..ec895a5d375 100644
--- a/lib/libcrypto/man/BN_mod_mul_reciprocal.3
+++ b/lib/libcrypto/man/BN_mod_mul_reciprocal.3
@@ -1,6 +1,54 @@
-.\"	$OpenBSD: BN_mod_mul_reciprocal.3,v 1.3 2016/11/08 22:19:45 jmc Exp $
+.\"	$OpenBSD: BN_mod_mul_reciprocal.3,v 1.4 2016/11/20 17:47:18 schwarze Exp $
+.\"	OpenSSL 6859cf74 Sep 25 13:33:28 2002 +0000
 .\"
-.Dd $Mdocdate: November 8 2016 $
+.\" This file was written by Ulf Moeller <ulf@openssl.org>.
+.\" Copyright (c) 2000 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_MOD_MUL_RECIPROCAL 3
 .Os
 .Sh NAME
@@ -77,6 +125,11 @@ frees the components of the
 and, if it was created by
 .Fn BN_RECP_CTX_new ,
 also the structure itself.
+If
+.Fa recp
+is a
+.Dv NULL
+pointer, no action occurs.
 .Pp
 .Fn BN_RECP_CTX_set
 stores
@@ -121,17 +174,12 @@ It cannot be shared between threads.
 .Sh RETURN VALUES
 .Fn BN_RECP_CTX_new
 returns the newly allocated
-.Vt BN_RECP_CTX ,
+.Vt BN_RECP_CTX
 or
 .Dv NULL
 on error.
 .Pp
-.Fn BN_RECP_CTX_init
-and
-.Fn BN_RECP_CTX_free
-return no values.
-.Pp
-For the other functions, 1 is returned for success, 0 on error.
+For the other functions, 1 is returned for success or 0 on error.
 The error codes can be obtained by
 .Xr ERR_get_error 3 .
 .Sh SEE ALSO
diff --git a/lib/libcrypto/man/BN_new.3 b/lib/libcrypto/man/BN_new.3
index cb351d2fa52..2a3ce2f453e 100644
--- a/lib/libcrypto/man/BN_new.3
+++ b/lib/libcrypto/man/BN_new.3
@@ -1,6 +1,54 @@
-.\"	$OpenBSD: BN_new.3,v 1.3 2016/11/08 22:19:45 jmc Exp $
+.\"	$OpenBSD: BN_new.3,v 1.4 2016/11/20 17:47:18 schwarze Exp $
+.\"	OpenSSL 2457c19d Mar 6 08:43:36 2004 +0000
 .\"
-.Dd $Mdocdate: November 8 2016 $
+.\" This file was written by Ulf Moeller <ulf@openssl.org>.
+.\" Copyright (c) 2000, 2004 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_NEW 3
 .Os
 .Sh NAME
@@ -57,6 +105,11 @@ also the structure itself.
 .Fn BN_clear_free
 additionally overwrites the data before the memory is returned to the
 system.
+If
+.Fa a
+is a
+.Dv NULL
+pointer, no action occurs.
 .Sh RETURN VALUES
 .Fn BN_new
 returns a pointer to the
@@ -65,13 +118,6 @@ If the allocation fails, it returns
 .Dv NULL
 and sets an error code that can be obtained by
 .Xr ERR_get_error 3 .
-.Pp
-.Fn BN_init ,
-.Fn BN_clear ,
-.Fn BN_free ,
-and
-.Fn BN_clear_free
-return no values.
 .Sh SEE ALSO
 .Xr bn 3 ,
 .Xr ERR_get_error 3