2
0

BIO_s_null.pod 806 B

12345678910111213141516171819202122232425262728293031323334353637
  1. =pod
  2. =head1 NAME
  3. BIO_s_null - null data sink
  4. =head1 SYNOPSIS
  5. #include <openssl/bio.h>
  6. BIO_METHOD * BIO_s_null(void);
  7. =head1 DESCRIPTION
  8. BIO_s_null() returns the null sink BIO method. Data written to
  9. the null sink is discarded, reads return EOF.
  10. =head1 NOTES
  11. A null sink BIO behaves in a similar manner to the Unix /dev/null
  12. device.
  13. A null bio can be placed on the end of a chain to discard any data
  14. passed through it.
  15. A null sink is useful if, for example, an application wishes to digest some
  16. data by writing through a digest bio but not send the digested data anywhere.
  17. Since a BIO chain must normally include a source/sink BIO this can be achieved
  18. by adding a null sink BIO to the end of the chain
  19. =head1 RETURN VALUES
  20. BIO_s_null() returns the null sink BIO method.
  21. =head1 SEE ALSO
  22. TBA