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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:54:44 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:54:44 -0400
commita9157ce950dfe2fc30795d43b9d79b9d1bffc48b (patch)
tree9df484304b560466d145e662c1c254ff0e9ae0ba /static/openbsd/man3/SSL_CTX_set_ssl_version.3
parent160aa82b2d39c46ad33723d7d909cb4972efbb03 (diff)
docs: Added All OpenBSD Manuals
Diffstat (limited to 'static/openbsd/man3/SSL_CTX_set_ssl_version.3')
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+.\" $OpenBSD: SSL_CTX_set_ssl_version.3,v 1.6 2025/06/08 22:52:00 schwarze Exp $
+.\" OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100
+.\"
+.\" This file was written by Lutz Jaenicke <jaenicke@openssl.org>.
+.\" Copyright (c) 2000, 2001, 2005 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: June 8 2025 $
+.Dt SSL_CTX_SET_SSL_VERSION 3
+.Os
+.Sh NAME
+.Nm SSL_CTX_set_ssl_version ,
+.Nm SSL_set_ssl_method ,
+.Nm SSL_CTX_get_ssl_method ,
+.Nm SSL_get_ssl_method
+.Nd choose a new TLS/SSL method
+.Sh SYNOPSIS
+.Lb libssl libcrypto
+.In openssl/ssl.h
+.Ft int
+.Fn SSL_CTX_set_ssl_version "SSL_CTX *ctx" "const SSL_METHOD *method"
+.Ft int
+.Fn SSL_set_ssl_method "SSL *s" "const SSL_METHOD *method"
+.Ft const SSL_METHOD *
+.Fn SSL_CTX_get_ssl_method "SSL_CTX *ctx"
+.Ft const SSL_METHOD *
+.Fn SSL_get_ssl_method "SSL *ssl"
+.Sh DESCRIPTION
+.Fn SSL_CTX_set_ssl_version
+sets a new default TLS/SSL
+.Fa method
+for
+.Vt SSL
+objects newly created from this
+.Fa ctx .
+.Vt SSL
+objects already created with
+.Xr SSL_new 3
+are not affected, except when
+.Xr SSL_clear 3
+is called.
+.Pp
+.Fn SSL_set_ssl_method
+sets a new TLS/SSL
+.Fa method
+for a particular
+.Vt SSL
+object
+.Fa s .
+It may be reset when
+.Xr SSL_clear 3
+is called.
+.Pp
+.Fn SSL_CTX_get_ssl_method
+and
+.Fn SSL_get_ssl_method
+return a function pointer to the TLS/SSL method set in
+.Fa ctx
+and
+.Fa ssl ,
+respectively.
+.Pp
+The available
+.Fa method
+choices are described in
+.Xr SSL_CTX_new 3 .
+.Pp
+When
+.Xr SSL_clear 3
+is called and no session is connected to an
+.Vt SSL
+object, the method of the
+.Vt SSL
+object is reset to the method currently set in the corresponding
+.Vt SSL_CTX
+object.
+.Sh RETURN VALUES
+The following return values can occur for
+.Fn SSL_CTX_set_ssl_version
+and
+.Fn SSL_set_ssl_method :
+.Bl -tag -width Ds
+.It 0
+The new choice failed.
+Check the error stack to find out the reason.
+.It 1
+The operation succeeded.
+.El
+.Sh SEE ALSO
+.Xr ssl 3 ,
+.Xr SSL_clear 3 ,
+.Xr SSL_CTX_new 3 ,
+.Xr SSL_new 3 ,
+.Xr SSL_set_connect_state 3
+.Sh HISTORY
+.Fn SSL_CTX_set_ssl_version ,
+.Fn SSL_set_ssl_method ,
+and
+.Fn SSL_get_ssl_method
+first appeared in SSLeay 0.8.0 and have been available since
+.Ox 2.4 .
+.Fn SSL_CTX_get_ssl_method
+first appeared in OpenSSL 1.1.0 and has been available since
+.Ox 7.0 .