.\" $OpenBSD: SSL_set_SSL_CTX.3,v 1.4 2022/07/13 22:05:53 schwarze Exp $
.\"
.\" Copyright (c) 2020 Ingo Schwarze <schwarze@openbsd.org>
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.Dd $Mdocdate: July 13 2022 $
.Dt SSL_SET_SSL_CTX 3
.Os
.Sh NAME
.Nm SSL_set_SSL_CTX
.Nd modify an SSL connection object to use another context
.Sh SYNOPSIS
.In openssl/ssl.h
.Ft SSL_CTX *
.Fo SSL_set_SSL_CTX
.Fa "SSL *ssl"
.Fa "SSL_CTX* ctx"
.Fc
.Sh DESCRIPTION
.Fn SSL_set_SSL_CTX
causes
.Fa ssl
to use the context
.Fa ctx .
.Pp
If
.Fa ctx
is
.Dv NULL ,
.Fa ssl
reverts to using the context that it was initially created from with
.Xr SSL_new 3 .
.Pp
If
.Fa ssl
already uses
.Fa ctx ,
no action occurs.
.Sh RETURN VALUES
.Fn SSL_set_SSL_CTX
returns an internal pointer to the context that
.Fa ssl
is using as a result of the call, or
.Dv NULL
if memory allocation fails.
.Sh SEE ALSO
.Xr ssl 3 ,
.Xr SSL_clear 3 ,
.Xr SSL_CTX_new 3 ,
.Xr SSL_get_SSL_CTX 3 ,
.Xr SSL_new 3 ,
.Xr SSL_set_security_level 3
.Sh HISTORY
.Fn SSL_set_SSL_CTX
first appeared in OpenSSL 0.9.8f and has been available since
.Ox 4.5 .