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SSL_CTX_get0_param(3)               OpenSSL              SSL_CTX_get0_param(3)



NAME
       SSL_CTX_get0_param, SSL_get0_param, SSL_CTX_set1_param, SSL_set1_param
       - get and set verification parameters

LIBRARY
       libcrypto, -lcrypto

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.

EXAMPLE
       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);

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.

SEE ALSO
       X509_VERIFY_PARAM_set_flags(3)

HISTORY
       These functions were first added to OpenSSL 1.0.2.

COPYRIGHT
       Copyright 2015-2016 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>.



1.1.1                             2018-09-17             SSL_CTX_get0_param(3)