openssl/doc/crypto/BIO_f_null.pod
David Benjamin 04f6b0fd91 RT4660: BIO_METHODs should be const.
BIO_new, etc., don't need a non-const BIO_METHOD. This allows all the
built-in method tables to live in .rodata.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-03-21 16:49:10 -04:00

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=pod
=head1 NAME
BIO_f_null - null filter
=head1 SYNOPSIS
#include <openssl/bio.h>
const BIO_METHOD * BIO_f_null(void);
=head1 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.
=head1 NOTES
As may be apparent a null filter BIO is not particularly useful.
=head1 RETURN VALUES
BIO_f_null() returns the null filter BIO method.
=head1 SEE ALSO
TBA