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/*
* addr.h
*
* Network address operations.
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: addr.h,v 1.12 2003/02/27 03:44:55 dugsong Exp $
*/
#ifndef DNET_ADDR_H
#define DNET_ADDR_H
#define ADDR_TYPE_NONE 0 /* No address set */
#define ADDR_TYPE_ETH 1 /* Ethernet */
#define ADDR_TYPE_IP 2 /* Internet Protocol v4 */
#define ADDR_TYPE_IP6 3 /* Internet Protocol v6 */
struct addr {
uint16_t addr_type;
uint16_t addr_bits;
union {
eth_addr_t __eth;
ip_addr_t __ip;
ip6_addr_t __ip6;
uint8_t __data8[16];
uint16_t __data16[8];
uint32_t __data32[4];
} __addr_u;
};
#define addr_eth __addr_u.__eth
#define addr_ip __addr_u.__ip
#define addr_ip6 __addr_u.__ip6
#define addr_data8 __addr_u.__data8
#define addr_data16 __addr_u.__data16
#define addr_data32 __addr_u.__data32
#define addr_pack(addr, type, bits, data, len) do { \
(addr)->addr_type = type; \
(addr)->addr_bits = bits; \
memmove((addr)->addr_data8, (char *)data, len); \
} while (0)
__BEGIN_DECLS
int addr_cmp(const struct addr *a, const struct addr *b);
int addr_bcast(const struct addr *a, struct addr *b);
int addr_net(const struct addr *a, struct addr *b);
char *addr_ntop(const struct addr *src, char *dst, size_t size);
int addr_pton(const char *src, struct addr *dst);
char *addr_ntoa(const struct addr *a);
#define addr_aton addr_pton
int addr_ntos(const struct addr *a, struct sockaddr *sa);
int addr_ston(const struct sockaddr *sa, struct addr *a);
int addr_btos(uint16_t bits, struct sockaddr *sa);
int addr_stob(const struct sockaddr *sa, uint16_t *bits);
int addr_btom(uint16_t bits, void *mask, size_t size);
int addr_mtob(const void *mask, size_t size, uint16_t *bits);
__END_DECLS
#endif /* DNET_ADDR_H */
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