SSL_SET_RETRY_VERIFY(3ossl) OpenSSL SSL_SET_RETRY_VERIFY(3ossl)
NAME
SSL_set_retry_verify - indicate that certificate verification should be
retried
SYNOPSIS
#include <openssl/ssl.h>
int SSL_set_retry_verify(SSL *ssl);
DESCRIPTION
SSL_set_retry_verify(3) should be called from the certificate
verification callback on a client when the application wants to
indicate that the handshake should be suspended and the control should
be returned to the application. SSL_want_retry_verify(3) will return 1
as a consequence until the handshake is resumed again by the
application, retrying the verification step.
Please refer to SSL_CTX_set_cert_verify_callback(3) for further
details.
NOTES
The effect of calling SSL_set_retry_verify(3) outside of the certificate
verification callback on the client side is undefined.
RETURN VALUES
SSL_set_retry verify() returns 1 on success, 0 otherwise.
EXAMPLES
The following code snippet shows how to obtain the SSL object
associated with the SSL_set_retry_verify(3)
function:
int idx = SSL_get_ex_data_X509_STORE_CTX_idx();
SSL *ssl;
/* this should not happen but check anyway */
if (idx < 0
|| (ssl = X509_STORE_CTX_get_ex_data(ctx, idx)) == NULL)
return 0;
if (/* we need to retry verification callback */)
return SSL_set_retry_verify(ssl);
/* do normal processing of the verification callback */
SEE ALSO
ssl(7), SSL_connect(3), SSL_CTX_set_cert_verify_callback(3),
SSL_want_retry_verify(3)
HISTORY
SSL_set_retry_verify(3) was added in OpenSSL 3.0.2 to replace backwards
incompatible handling of a negative return value from the verification
callback.
COPYRIGHT
Copyright 2022 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>.
3.3.2 2024-09-04 SSL_SET_RETRY_VERIFY(3ossl)
openssl 3.3.2 - Generated Thu Sep 26 18:34:50 CDT 2024