$NetBSD: SSL_get_verify_result.3,v 1.25 2024/09/08 13:08:35 christos Exp $
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Title "SSL_get_verify_result 3"
way too many mistakes in technical documents.
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Title "SSL_get_verify_result 3"
SSL_get_verify_result 3 2024-09-03 3.0.15 OpenSSL
For nroff, turn off justification. Always turn off hyphenation; it makesway too many mistakes in technical documents.
NAME
SSL_get_verify_result - get result of peer certificate verification
SYNOPSIS
Header "SYNOPSIS" .Vb 1
#include <openssl/ssl.h>
\&
long SSL_get_verify_result(const SSL *ssl);
.Ve
DESCRIPTION
Header "DESCRIPTION" \fBSSL_get_verify_result() returns the result of the verification of the
X509 certificate presented by the peer, if any.
NOTES
Header "NOTES" \fBSSL_get_verify_result() can only return one error code while the verification
of a certificate can fail because of many reasons at the same time. Only
the last verification error that occurred during the processing is available
from SSL_get_verify_result().
Sometimes there can be a sequence of errors leading to the verification failure as reported by SSL_get_verify_result(). To get the errors, it is necessary to setup a verify callback via \fBSSL_CTX_set_verify\|(3) or SSL_set_verify\|(3) and retrieve the errors from the error stack there, because once SSL_connect\|(3) returns, these errors may no longer be available.
The verification result is part of the established session and is restored when a session is reused.
BUGS
Header "BUGS" If no peer certificate was presented, the returned result code is
X509_V_OK. This is because no verification error occurred, it does however
not indicate success. SSL_get_verify_result() is only useful in connection
with SSL_get_peer_certificate\|(3).
"RETURN VALUES"
Header "RETURN VALUES" The following return values can currently occur:
X509_V_OK 4
Item "X509_V_OK" The verification succeeded or no peer certificate was presented.
"Any other value" 4
Item "Any other value" Documented in openssl-verify\|(1).
"SEE ALSO"
Header "SEE ALSO" \fBssl\|(7), SSL_set_verify_result\|(3),
\fBSSL_get_peer_certificate\|(3),
\fBopenssl-verify\|(1)
COPYRIGHT
Header "COPYRIGHT" Copyright 2000-2023 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>.