/* * magic numbers of line disciplines */ int tty_ld = 0; /* tty processing */ int cdkp_ld = 1; /* URP protocol -- character mode (same as 1) */ int rdk_ld = 2; /* `raw' datakit -- really CMC supervisor protocol */ int mesg_ld = 4; /* data message protocol */ int dkp_ld = 5; /* URP protocol -- block mode */ int ntty_ld = 6; /* new (UCB) tty processing */ int buf_ld = 7; /* buffer up characters till timeout */ int rmesg_ld= 9; /* reverse message processing */ int ip_ld = 10; /* IP - push on net interfaces (il, ec, ...) */ int tcp_ld = 11; /* TCP (inet) - only one instance, on /dev/ip6 */ int arp_ld = 13; /* Ethernet address resolution - on net interfaces */ int udp_ld = 14; /* UDP (inet) - only one instance, on /dev/ip */ int conn_ld = 18; /* Connection line discipline */ int uxp_ld = 19; /* unix common control protocol */