SSL_CTX_GET0_PARAM
Section: OpenSSL (3)
Updated: 2020-07-28
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NAME
SSL_CTX_get0_param, SSL_get0_param, SSL_CTX_set1_param, SSL_set1_param - get and set verification parameters
SYNOPSIS
#include <openssl/ssl.h>
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)
DESCRIPTION
SSL_CTX_get0_param() and
SSL_get0_param() retrieve an internal pointer to
the verification parameters for
ctx or
ssl respectively. The returned
pointer must not be freed by the calling application.
SSL_CTX_set1_param() and SSL_set1_param() set the verification parameters
to vpm for ctx or ssl.
NOTES
Typically parameters are retrieved from an
SSL_CTX or
SSL 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.
RETURN VALUES
SSL_CTX_get0_param() and
SSL_get0_param() return a pointer to an
X509_VERIFY_PARAM structure.
SSL_CTX_set1_param() and SSL_set1_param() return 1 for success and 0
for failure.
EXAMPLES
Check hostname matches ``
www.foo.com'' in peer certificate:
X509_VERIFY_PARAM *vpm = SSL_get0_param(ssl);
X509_VERIFY_PARAM_set1_host(vpm, "www.foo.com", 0);
SEE ALSO
X509_VERIFY_PARAM_set_flags(3)
HISTORY
These functions were added in OpenSSL 1.0.2.
COPYRIGHT
Copyright 2015-2019 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>.