xref: /freebsd/libexec/bootpd/hwaddr.h (revision b7a1a0a5ff8895e6a5c9404d02357ac9e2eb8091)
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