188 lines
5.8 KiB
Groff
Executable File
188 lines
5.8 KiB
Groff
Executable File
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.\" ========================================================================
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.\"
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.IX Title "SSL_CTX_GET0_PARAM 3"
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.TH SSL_CTX_GET0_PARAM 3 "2020-03-02" "3.0.0-dev" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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SSL_CTX_get0_param, SSL_get0_param, SSL_CTX_set1_param, SSL_set1_param \-
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get and set verification parameters
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/ssl.h>
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\&
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\& X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
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\& X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
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\& int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
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\& int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fISSL_CTX_get0_param()\fR and \fISSL_get0_param()\fR retrieve an internal pointer to
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the verification parameters for \fBctx\fR or \fBssl\fR respectively. The returned
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pointer must not be freed by the calling application.
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.PP
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\&\fISSL_CTX_set1_param()\fR and \fISSL_set1_param()\fR set the verification parameters
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to \fBvpm\fR for \fBctx\fR or \fBssl\fR.
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.SH "NOTES"
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.IX Header "NOTES"
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Typically parameters are retrieved from an \fB\s-1SSL_CTX\s0\fR or \fB\s-1SSL\s0\fR structure
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using \fISSL_CTX_get0_param()\fR or \fISSL_get0_param()\fR and an application modifies
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them to suit its needs: for example to add a hostname check.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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\&\fISSL_CTX_get0_param()\fR and \fISSL_get0_param()\fR return a pointer to an
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\&\fBX509_VERIFY_PARAM\fR structure.
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.PP
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\&\fISSL_CTX_set1_param()\fR and \fISSL_set1_param()\fR return 1 for success and 0
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for failure.
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.SH "EXAMPLES"
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.IX Header "EXAMPLES"
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Check hostname matches \*(L"www.foo.com\*(R" in peer certificate:
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.PP
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.Vb 2
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\& X509_VERIFY_PARAM *vpm = SSL_get0_param(ssl);
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\& X509_VERIFY_PARAM_set1_host(vpm, "www.foo.com", 0);
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.Ve
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIssl\fR\|(7),
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\&\fIX509_VERIFY_PARAM_set_flags\fR\|(3)
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.SH "HISTORY"
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.IX Header "HISTORY"
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These functions were added in OpenSSL 1.0.2.
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2015\-2016 The OpenSSL Project Authors. All Rights Reserved.
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.PP
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Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file \s-1LICENSE\s0 in the source distribution or at
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<https://www.openssl.org/source/license.html>.
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