=pod
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=head1 NAME
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SSL_CTX_set_ssl_version, SSL_set_ssl_method, SSL_get_ssl_method
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- choose a new TLS/SSL method
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *method);
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int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
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const SSL_METHOD *SSL_get_ssl_method(const SSL *ssl);
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=head1 DESCRIPTION
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SSL_CTX_set_ssl_version() sets a new default TLS/SSL B<method> for SSL objects
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newly created from this B<ctx>. SSL objects already created with
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L<SSL_new(3)> are not affected, except when
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L<SSL_clear(3)> is being called.
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SSL_set_ssl_method() sets a new TLS/SSL B<method> for a particular B<ssl>
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object. It may be reset, when SSL_clear() is called.
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SSL_get_ssl_method() returns a function pointer to the TLS/SSL method
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set in B<ssl>.
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=head1 NOTES
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The available B<method> choices are described in
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L<SSL_CTX_new(3)>.
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When L<SSL_clear(3)> is called and no session is connected to
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an SSL object, the method of the SSL object is reset to the method currently
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set in the corresponding SSL_CTX object.
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=head1 RETURN VALUES
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The following return values can occur for SSL_CTX_set_ssl_version()
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and SSL_set_ssl_method():
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=over 4
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=item Z<>0
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The new choice failed, check the error stack to find out the reason.
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=item Z<>1
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The operation succeeded.
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=back
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=head1 SEE ALSO
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L<SSL_CTX_new(3)>, L<SSL_new(3)>,
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L<SSL_clear(3)>, L<ssl(7)>,
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L<SSL_set_connect_state(3)>
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=head1 COPYRIGHT
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Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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