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