1=pod
2
3=head1 NAME
4
5BIO_f_null - null filter
6
7=head1 SYNOPSIS
8
9 #include <openssl/bio.h>
10
11 BIO_METHOD *	BIO_f_null(void);
12
13=head1 DESCRIPTION
14
15BIO_f_null() returns the null filter BIO method. This is a filter BIO
16that does nothing.
17
18All requests to a null filter BIO are passed through to the next BIO in
19the chain: this means that a BIO chain containing a null filter BIO
20behaves just as though the BIO was not there.
21
22=head1 NOTES
23
24As may be apparent a null filter BIO is not particularly useful.
25
26=head1 RETURN VALUES
27
28BIO_f_null() returns the null filter BIO method.
29
30=head1 SEE ALSO
31
32TBA
33