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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>SSL_CTX_get0_param</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@hsxx.drive.ne.jp" /> </head> <body style="background-color: white"> <!-- INDEX BEGIN --> <div name="index"> <p><a name="__index__"></a></p> <ul> <li><a href="#name">NAME</a></li> <li><a href="#synopsis">SYNOPSIS</a></li> <li><a href="#description">DESCRIPTION</a></li> <li><a href="#notes">NOTES</a></li> <li><a href="#return_values">RETURN VALUES</a></li> <li><a href="#examples">EXAMPLES</a></li> <li><a href="#see_also">SEE ALSO</a></li> <li><a href="#history">HISTORY</a></li> <li><a href="#copyright">COPYRIGHT</a></li> </ul> <hr name="index" /> </div> <!-- INDEX END --> <p> </p> <hr /> <h1><a name="name">NAME</a></h1> <p>SSL_CTX_get0_param, SSL_get0_param, SSL_CTX_set1_param, SSL_set1_param - get and set verification parameters</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/ssl.h></pre> <pre> X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p>SSL_CTX_get0_param() and SSL_get0_param() retrieve an internal pointer to the verification parameters for <strong>ctx</strong> or <strong>ssl</strong> respectively. The returned pointer must not be freed by the calling application.</p> <p>SSL_CTX_set1_param() and SSL_set1_param() set the verification parameters to <strong>vpm</strong> for <strong>ctx</strong> or <strong>ssl</strong>.</p> <p> </p> <hr /> <h1><a name="notes">NOTES</a></h1> <p>Typically parameters are retrieved from an <strong>SSL_CTX</strong> or <strong>SSL</strong> structure using SSL_CTX_get0_param() or SSL_get0_param() and an application modifies them to suit its needs: for example to add a hostname check.</p> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p>SSL_CTX_get0_param() and SSL_get0_param() return a pointer to an <strong>X509_VERIFY_PARAM</strong> structure.</p> <p>SSL_CTX_set1_param() and SSL_set1_param() return 1 for success and 0 for failure.</p> <p> </p> <hr /> <h1><a name="examples">EXAMPLES</a></h1> <p>Check hostname matches "www.foo.com" in peer certificate:</p> <pre> X509_VERIFY_PARAM *vpm = SSL_get0_param(ssl); X509_VERIFY_PARAM_set1_host(vpm, "www.foo.com", 0);</pre> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>X509_VERIFY_PARAM_set_flags(3)</em></p> <p> </p> <hr /> <h1><a name="history">HISTORY</a></h1> <p>These functions were added in OpenSSL 1.0.2.</p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2015-2019 The OpenSSL Project Authors. All Rights Reserved.</p> <p>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 <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p> </body> </html>