NAME

       SSL_get_verify_result - get result of peer certificate verification

SYNOPSIS

        #include <openssl/ssl.h>

        long SSL_get_verify_result(const SSL *ssl);

DESCRIPTION

       SSL_get_verify_result() returns the result of the verification of the X509 certificate
       presented by the peer, if any.

NOTES

       SSL_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 SSL_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

       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

       The following return values can currently occur:

       X509_V_OK
           The verification succeeded or no peer certificate was presented.

       Any other value
           Documented in openssl-verify(1).

SEE ALSO

       ssl(7), SSL_set_verify_result(3), SSL_get_peer_certificate(3), openssl-verify(1)

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>.