The netbuf_close function deallocates a network buffer
and closes its associated files. Use this function when you need to deallocate
the network buffer and close the socket.
Never close the netbuf parameter in a session structure.
void netbuf_close(netbuf *buf);
netbuf *buf is the buffer to close.
netbuf_buf2sd() Function, netbuf_getc() Function, netbuf_getbytes() Function, netbuf_grab() Function, netbuf_open() Function