SSL_CTX_GET0_PARAM - Online Linux Manual Page

Section : 3
Updated : 2021-03-26
Source : 1.1.1k
Note : OpenSSL
NAMESSL_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.
NOTESTypically 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.
EXAMPLESCheck 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)
HISTORYThese functions were added in OpenSSL 1.0.2.
COPYRIGHTCopyright 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>. 0
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