OF_write
OF_write(stdout, &cbuf, 1);
OF_write(stdout, &cbuf, 1);
rv = OF_write(netinstance, pkt, len);
int OF_write(ihandle_t, void *, int);
#define OF_puts(fd, text) OF_write(fd, text, strlen(text))
OF_write(stdout, buf, len);
OF_write(stdout, &cbuf, 1);
OF_write(stdout, &cbuf, 1);
r = OF_write(sc->ofwd_instance, (void *)bp->bio_data,
OF_write(stdout, &cbuf, 1);
OF_write(stdout, &cbuf, 1);
ssize_t OF_write(ihandle_t instance, const void *buf, size_t len);