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hwaddr.h revision 1.1 
      1 /* hwaddr.h */
      2 #ifndef	HWADDR_H
      3 #define HWADDR_H
      4 
      5 #define MAXHADDRLEN		8	/* Max hw address length in bytes */
      6 
      7 /*
      8  * This structure holds information about a specific network type.  The
      9  * length of the network hardware address is stored in "hlen".
     10  * The string pointed to by "name" is the cononical name of the network.
     11  */
     12 struct hwinfo {
     13     unsigned int hlen;
     14     char *name;
     15 };
     16 
     17 extern struct hwinfo hwinfolist[];
     18 extern int hwinfocnt;
     19 
     20 #ifdef	__STDC__
     21 #define P(args) args
     22 #else
     23 #define P(args) ()
     24 #endif
     25 
     26 extern void setarp P((int, struct in_addr *, u_char *, int));
     27 extern char *haddrtoa P((u_char *, int));
     28 extern void haddr_conv802 P((u_char *, u_char *, int));
     29 
     30 #undef P
     31 
     32 /*
     33  * Return the length in bytes of a hardware address of the given type.
     34  * Return the canonical name of the network of the given type.
     35  */
     36 #define haddrlength(type)	((hwinfolist[(int) (type)]).hlen)
     37 #define netname(type)		((hwinfolist[(int) (type)]).name)
     38 
     39 #endif	/* HWADDR_H */
     40