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.\" $OpenBSD: SSL_copy_session_id.3,v 1.7 2019/06/12 09:36:30 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.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: June 12 2019 $
.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 int
.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 RETURN VALUES
.Fn SSL_copy_session_id
returns 1 on success and 0 on error.
.Sh SEE ALSO
.Xr BIO_ssl_copy_session_id 3 ,
.Xr ssl 3 ,
.Xr SSL_dup 3 ,
.Xr SSL_get_session 3 ,
.Xr SSL_SESSION_get_id 3 ,
.Xr SSL_SESSION_new 3 ,
.Xr SSL_set_session 3 ,
.Xr SSL_set_session_id_context 3
.Sh HISTORY
.Fn SSL_copy_session_id
appeared in SSLeay 0.4 or earlier and has been available since
.Ox 2.4 .
.Sh BUGS
Failures of
.Xr CRYPTO_add 3
are silently ignored and may leave
.Fa to
in an invalid or inconsistent state.
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