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BIO_s_null(3SSL)			     OpenSSL				 BIO_s_null(3SSL)

       BIO_s_null - null data sink

	#include <openssl/bio.h>

	BIO_METHOD *   BIO_s_null(void);

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

       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

       BIO_s_null() returns the null sink BIO method.


1.0.0e					    2000-09-14				 BIO_s_null(3SSL)
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