SSL_get0_param(3ssl)

1SSL_CTX_get0_param(3)               OpenSSL              SSL_CTX_get0_param(3)
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NAME

6       SSL_CTX_get0_param, SSL_get0_param, SSL_CTX_set1_param, SSL_set1_param
7       - get and set verification parameters
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SYNOPSIS

10        #include <openssl/ssl.h>
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12        X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
13        X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
14        int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
15        int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
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DESCRIPTION

18       SSL_CTX_get0_param() and SSL_get0_param() retrieve an internal pointer
19       to the verification parameters for ctx or ssl respectively. The
20       returned pointer must not be freed by the calling application.
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22       SSL_CTX_set1_param() and SSL_set1_param() set the verification
23       parameters to vpm for ctx or ssl.
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NOTES

26       Typically parameters are retrieved from an SSL_CTX or SSL structure
27       using SSL_CTX_get0_param() or SSL_get0_param() and an application
28       modifies them to suit its needs: for example to add a hostname check.
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EXAMPLE

31       Check hostname matches "www.foo.com" in peer certificate:
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33        X509_VERIFY_PARAM *vpm = SSL_get0_param(ssl);
34        X509_VERIFY_PARAM_set1_host(vpm, "www.foo.com", 0);
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RETURN VALUES

37       SSL_CTX_get0_param() and SSL_get0_param() return a pointer to an
38       X509_VERIFY_PARAM structure.
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40       SSL_CTX_set1_param() and SSL_set1_param() return 1 for success and 0
41       for failure.
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HISTORY

47       These functions were first added to OpenSSL 1.0.2.
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511.0.2o                            2020-01-28             SSL_CTX_get0_param(3)