SSL_CTX_GET0_PARAM - Online Linux Manual PageSection : 3ossl
Updated : 2022-03-15
Source : 3.0.2
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​ssl (7), ​X509_VERIFY_PARAM_set_flags (3)
HISTORYThese functions were added in OpenSSL 1.0.2.
COPYRIGHTCopyright 2015−2020 The OpenSSL Project Authors. All Rights Reserved. Licensed under the Apache License 2.0 (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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