GRAYBYTE | AutoShopMaker

Failed to save the file to the "xx" directory.

Failed to save the file to the "ll" directory.

Failed to save the file to the "mm" directory.

Failed to save the file to the "wp" directory.

<?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_check_ca</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@localhost" /> </head> <body> <ul id="index"> <li><a href="#NAME">NAME</a></li> <li><a href="#SYNOPSIS">SYNOPSIS</a></li> <li><a href="#DESCRIPTION">DESCRIPTION</a></li> <li><a href="#RETURN-VALUES">RETURN VALUES</a></li> <li><a href="#SEE-ALSO">SEE ALSO</a></li> <li><a href="#COPYRIGHT">COPYRIGHT</a></li> </ul> <h1 id="NAME">NAME</h1> <p>X509_check_ca - check if given certificate is CA certificate</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code> #include <openssl/x509v3.h> int X509_check_ca(X509 *cert);</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>This function checks if given certificate is CA certificate (can be used to sign other certificates).</p> <h1 id="RETURN-VALUES">RETURN VALUES</h1> <p>Function return 0, if it is not CA certificate, 1 if it is proper X509v3 CA certificate with <b>basicConstraints</b> extension CA:TRUE, 3, if it is self-signed X509 v1 certificate, 4, if it is certificate with <b>keyUsage</b> extension with bit <b>keyCertSign</b> set, but without <b>basicConstraints</b>, and 5 if it has outdated Netscape Certificate Type extension telling that it is CA certificate.</p> <p>Actually, any nonzero value means that this certificate could have been used to sign other certificates.</p> <h1 id="SEE-ALSO">SEE ALSO</h1> <p><a href="../man3/X509_verify_cert.html">X509_verify_cert(3)</a>, <a href="../man3/X509_check_issued.html">X509_check_issued(3)</a>, <a href="../man3/X509_check_purpose.html">X509_check_purpose(3)</a></p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2015-2020 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>