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