BIO_S_NULL(3ossl) OpenSSL BIO_S_NULL(3ossl)
NAME
BIO_s_null - null data sink
SYNOPSIS
#include <openssl/bio.h>
const BIO_METHOD *BIO_s_null(void);
DESCRIPTION
BIO_s_null(3) returns the null sink BIO method. Data written to the null
sink is discarded, reads return EOF.
NOTES
A null sink BIO behaves in a similar manner to the Unix /dev/null
device.
A null bio can be placed on the end of a chain to discard any data
passed through it.
A null sink is useful if, for example, an application wishes to digest
some data by writing through a digest bio but not send the digested
data anywhere. Since a BIO chain must normally include a source/sink
BIO this can be achieved by adding a null sink BIO to the end of the
chain
RETURN VALUES
BIO_s_null(3) returns the null sink BIO method.
COPYRIGHT
Copyright 2000-2016 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 BIO_S_NULL(3ossl)
openssl 3.3.2 - Generated Sat Sep 7 06:58:52 CDT 2024