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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_load_client_CA_file</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="#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="#COPYRIGHT">COPYRIGHT</a></li> </ul> <h1 id="NAME">NAME</h1> <p>SSL_load_client_CA_file, SSL_add_file_cert_subjects_to_stack, SSL_add_dir_cert_subjects_to_stack - load certificate names</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code> #include <openssl/ssl.h> STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file); int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *file) int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *dir)</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>SSL_load_client_CA_file() reads certificates from <i>file</i> and returns a STACK_OF(X509_NAME) with the subject names found.</p> <p>SSL_add_file_cert_subjects_to_stack() reads certificates from <i>file</i>, and adds their subject name to the already existing <i>stack</i>.</p> <p>SSL_add_dir_cert_subjects_to_stack() reads certificates from every file in the directory <i>dir</i>, and adds their subject name to the already existing <i>stack</i>.</p> <h1 id="NOTES">NOTES</h1> <p>SSL_load_client_CA_file() reads a file of PEM formatted certificates and extracts the X509_NAMES of the certificates found. While the name suggests the specific usage as support function for <a href="../man3/SSL_CTX_set_client_CA_list.html">SSL_CTX_set_client_CA_list(3)</a>, it is not limited to CA certificates.</p> <h1 id="RETURN-VALUES">RETURN VALUES</h1> <p>The following return values can occur:</p> <dl> <dt id="NULL">NULL</dt> <dd> <p>The operation failed, check out the error stack for the reason.</p> </dd> <dt id="Pointer-to-STACK_OF-X509_NAME">Pointer to STACK_OF(X509_NAME)</dt> <dd> <p>Pointer to the subject names of the successfully read certificates.</p> </dd> </dl> <h1 id="EXAMPLES">EXAMPLES</h1> <p>Load names of CAs from file and use it as a client CA list:</p> <pre><code> SSL_CTX *ctx; STACK_OF(X509_NAME) *cert_names; ... cert_names = SSL_load_client_CA_file("/path/to/CAfile.pem"); if (cert_names != NULL) SSL_CTX_set_client_CA_list(ctx, cert_names); else /* error */ ...</code></pre> <h1 id="SEE-ALSO">SEE ALSO</h1> <p><a href="../man7/ssl.html">ssl(7)</a>, <a href="../man3/SSL_CTX_set_client_CA_list.html">SSL_CTX_set_client_CA_list(3)</a></p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2000-2019 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>