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BIO_f_null(3)                       OpenSSL                      BIO_f_null(3)



NAME
       BIO_f_null - null filter

LIBRARY
       libcrypto, -lcrypto

SYNOPSIS
        #include <openssl/bio.h>

        const BIO_METHOD *BIO_f_null(void);

DESCRIPTION
       BIO_f_null() returns the null filter BIO method. This is a filter BIO
       that does nothing.

       All requests to a null filter BIO are passed through to the next BIO in
       the chain: this means that a BIO chain containing a null filter BIO
       behaves just as though the BIO was not there.

NOTES
       As may be apparent a null filter BIO is not particularly useful.

RETURN VALUES
       BIO_f_null() returns the null filter 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>.



3.0.12                            2023-05-07                     BIO_f_null(3)