BIO_f_null 3 2001-04-11 0.9.9-dev OpenSSL

### NAME

BIO_f_null - null filter

### LIBRARY

libcrypto, -lcrypto

### SYNOPSIS

     #include

     BIO_METHOD *   BIO_f_null(void);

### DESCRIPTION

BIO_f_null() returns the null filter BIO method. This is a filter BIO that does nothing.

All requests to a null filter BIO are passed through to the next BIO in the chain: this means that a BIO chain containing a null filter BIO behaves just as though the BIO was not there.

### NOTES

As may be apparent a null filter BIO is not particularly useful.

### RETURN VALUES

BIO_f_null() returns the null filter BIO method.

### SEE ALSO

TBA