NAME

BIO_s_null − Null data sink

SYNOPSIS

#include <openssl/bio.h>
BIO_METHOD ∗BIO_s_null(
        void );

DESCRIPTION

BIO_s_null() returns the null sink BIO method. Data written to the null sink is discarded; reads return EOF. 

NOTES

A null sink BIO behaves in a similar manner to the Unix /dev/null device. 

A null bio can be placed on the end of a chain to discard any data passed through it. 

A null sink is useful if, for example, an application wishes to digest some data by writing through a digest bio but not send the digested data anywhere.  Since a BIO chain must normally include a source/sink BIO this can be achieved by adding a null sink BIO to the end of the chain

RETURN VALUES

BIO_s_null() returns the null sink BIO method. 

SEE ALSO

TBA