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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>X509_get_version</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="#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>X509_get_version, X509_set_version, X509_REQ_get_version, X509_REQ_set_version, X509_CRL_get_version, X509_CRL_set_version - get or set certificate, certificate request or CRL version</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/x509.h></pre> <pre> long X509_get_version(const X509 *x); int X509_set_version(X509 *x, long version);</pre> <pre> long X509_REQ_get_version(const X509_REQ *req); int X509_REQ_set_version(X509_REQ *x, long version);</pre> <pre> long X509_CRL_get_version(const X509_CRL *crl); int X509_CRL_set_version(X509_CRL *x, long version);</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p>X509_get_version() returns the numerical value of the version field of certificate <strong>x</strong>. Note: this is defined by standards (X.509 et al) to be one less than the certificate version. So a version 3 certificate will return 2 and a version 1 certificate will return 0.</p> <p>X509_set_version() sets the numerical value of the version field of certificate <strong>x</strong> to <strong>version</strong>.</p> <p>Similarly X509_REQ_get_version(), X509_REQ_set_version(), X509_CRL_get_version() and X509_CRL_set_version() get and set the version number of certificate requests and CRLs.</p> <p> </p> <hr /> <h1><a name="notes">NOTES</a></h1> <p>The version field of certificates, certificate requests and CRLs has a DEFAULT value of <strong>v1(0)</strong> meaning the field should be omitted for version 1. This is handled transparently by these functions.</p> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p>X509_get_version(), X509_REQ_get_version() and X509_CRL_get_version() return the numerical value of the version field.</p> <p>X509_set_version(), X509_REQ_set_version() and X509_CRL_set_version() return 1 for success and 0 for failure.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>d2i_X509(3)</em>, <em>ERR_get_error(3)</em>, <em>X509_CRL_get0_by_serial(3)</em>, <em>X509_get0_signature(3)</em>, <em>X509_get_ext_d2i(3)</em>, <em>X509_get_extension_flags(3)</em>, <em>X509_get_pubkey(3)</em>, <em>X509_get_subject_name(3)</em>, <em>X509_NAME_add_entry_by_txt(3)</em>, <em>X509_NAME_ENTRY_get_object(3)</em>, <em>X509_NAME_get_index_by_NID(3)</em>, <em>X509_NAME_print_ex(3)</em>, <em>X509_new(3)</em>, <em>X509_sign(3)</em>, <em>X509V3_get_d2i(3)</em>, <em>X509_verify_cert(3)</em></p> <p> </p> <hr /> <h1><a name="history">HISTORY</a></h1> <p>X509_get_version(), X509_REQ_get_version() and X509_CRL_get_version() are functions in OpenSSL 1.1.0, in previous versions they were macros.</p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2015-2016 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>