* Constants and Structures defined by the Xerox Network Software
* per "Internet Transport Protocols", XSIS 028112, December 1981
#define NSPROTO_RI 1 /* Routing Information */
#define NSPROTO_ECHO 2 /* Echo Protocol */
#define NSPROTO_ERROR 3 /* Error Protocol */
#define NSPROTO_PE 4 /* Packet Exchange */
#define NSPROTO_SPP 5 /* Sequenced Packet */
#define NSPROTO_RAW 255 /* Placemarker*/
#define NSPROTO_MAX 256 /* Placemarker*/
* Port/Socket numbers: network standard functions
#define NSPORT_RI 1 /* Routing Information */
#define NSPORT_ECHO 2 /* Echo */
#define NSPORT_RE 3 /* Router Error */
* Ports < NSPORT_RESERVED are reserved for priveleged
#define NSPORT_RESERVED 3000
/* flags passed to ns_output as last parameter */
#define NS_FORWARDING 0x1 /* most of idp header exists */
#define NS_ROUTETOIF 0x10 /* same as SO_DONTROUTE */
#define NS_ALLOWBROADCAST SS_PRIV /* can send broadcast packets */
/* flags passed to get/set socket option */
#define SO_HEADERS_ON_INPUT 1
#define SO_HEADERS_ON_OUTPUT 2
#define SO_DEFAULT_HEADERS 3
* Socket address, Xerox style
#define sns_port sns_addr.x_port
#define ns_netof(a) (*(long *) & ((a).x_net))
#define satons_addr(sa) (((struct sockaddr_ns *)&(sa))->sns_addr)
#define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
(s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
#define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
#define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
* Macros for number representation conversion.
extern struct domain nsdomain
;
extern union ns_host ns_thishost
;
extern union ns_host ns_zerohost
;
extern union ns_host ns_broadhost
;