BIO_s_null(3) OpenSSL BIO_s_null(3)
NAME
BIO_s_null - null data sink
SYNOPSIS
#include <openssl/bio.h>
const BIO_METHOD *BIO_s_null(void);
DESCRIPTION
BIO_s_null() 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() returns the null sink BIO method.
COPYRIGHT
Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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>.
1.1.1d 2019-09-10 BIO_s_null(3)
openssl 1.1.1d - Generated Thu Sep 19 08:00:00 CDT 2019