openssl (3.1.3)
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VersionsBIO_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() 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 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>.
3.1.3 2023-09-19 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() 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 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>.
3.1.3 2023-09-19 BIO_S_NULL(3ossl)