BIO_s_null(3)

     BIO_s_null(3)          0.9.6h (2000-09-14)          BIO_s_null(3)

     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

     Page 1                                         (printed 1/19/103)