static int putctl2 __P((queue_t *, int, int, int));
static int putctl4 __P((queue_t *, int, int, int));
static int pass_packet __P((upperstr_t *ppa, mblk_t *mp, int outbound));
static int putctl2 __P((queue_t *, int, int, int));
static int putctl4 __P((queue_t *, int, int, int));
static int pass_packet __P((upperstr_t *ppa, mblk_t *mp, int outbound));