Updated: 2021/Apr/14


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 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>.



1.1.1i                            2018-09-23                     BIO_f_null(3)