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