| BIO_s_null - null data sink |
| 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 |
| A null bio can be placed on the end of a chain to discard any data |
| 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. |
