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.\" $OpenBSD: SSL_SESSION_get_compress_id.3,v 1.2 2018/02/24 19:24:09 schwarze Exp $
.\" OpenSSL SSL_SESSION_get_compress_id.pod b31db505 Mar 24 16:01:50 2017
.\"
.\" This file was written by Matt Caswell <matt@openssl.org>
.\" Copyright (c) 2017 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,
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.Dd $Mdocdate: February 24 2018 $
.Dt SSL_SESSION_GET_COMPRESS_ID 3
.Os
.Sh NAME
.Nm SSL_SESSION_get_compress_id
.Nd get details about the compression associated with a session
.Sh SYNOPSIS
.In openssl/ssl.h
.Ft unsigned int
.Fo SSL_SESSION_get_compress_id
.Fa "const SSL_SESSION *s"
.Fc
.Sh DESCRIPTION
If compression has been negotiated for an ssl session,
.Fn SSL_SESSION_get_compress_id
returns the id for the compression method, or 0 otherwise.
The only built-in supported compression method is zlib,
which has an id of 1.
.Sh SEE ALSO
.Xr ssl 3 ,
.Xr SSL_get_session 3 ,
.Xr SSL_SESSION_get_id 3 ,
.Xr SSL_SESSION_get_protocol_version 3 ,
.Xr SSL_SESSION_new 3
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