.\"	$OpenBSD: SSL_copy_session_id.3,v 1.1 2016/12/07 18:09:31 schwarze Exp $
.\"
.\" Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.Dd $Mdocdate: December 7 2016 $
.Dt SSL_COPY_SESSION_ID 3
.Os
.Sh NAME
.Nm SSL_copy_session_id
.Nd copy session details between SSL objects
.Sh SYNOPSIS
.In openssl/ssl.h
.Ft void
.Fo SSL_copy_session_id
.Fa "SSL *to"
.Fa "const SSL *from"
.Fc
.Sh DESCRIPTION
.Fn SSL_copy_session_id
copies the following data from
.Fa from
to
.Fa to :
.Bl -dash
.It
the pointer to the
.Vt SSL_SESSION
object, incrementing its reference count by 1
.It
the pointer to the
.Vt SSL_METHOD
object; if that changes the method, protocol-specific data is
reinitialized
.It
the pointer to the
.Vt CERT
object, incrementing its reference count by 1
.It
the session ID context
.El
.Pp
This function is used internally by
.Xr SSL_dup 3
and by
.Xr BIO_ssl_copy_session_id 3 .
.Sh SEE ALSO
.Xr BIO_ssl_copy_session_id 3 ,
.Xr SSL_dup 3 ,
.Xr SSL_get_session 3 ,
.Xr SSL_set_session 3 ,
.Xr SSL_set_session_id_context 3
.Sh HISTORY
.Fn SSL_copy_session_id
is available in all versions of OpenSSL.
.Sh BUGS
Failures of
.Xr SSL_set_session 3 ,
.Xr SSL_set_session_id_context 3 ,
.Xr CRYPTO_add 3 ,
and reinitialization of protocol-specific data are silently ignored
and may leave
.Fa to
in an invalid or inconsistent state.
An improved version reporting failure is available in OpenSSL 1.1.0.