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BIO_s_null(3)				     OpenSSL				    BIO_s_null(3)

       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 writ-
       ing 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.


0.9.7a					    2000-09-14				    BIO_s_null(3)
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