ext/dnet/addr.h

   1 /*
   2  * addr.h
   3  *
   4  * Network address operations.
   5  *
   6  * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
   7  *
   8  * $Id: addr.h,v 1.12 2003/02/27 03:44:55 dugsong Exp $
   9  */
  10
  11 #ifndef DNET_ADDR_H
  12 #define DNET_ADDR_H
  13
  14 #define ADDR_TYPE_NONE          0       /* No address set */
  15 #define ADDR_TYPE_ETH           1       /* Ethernet */
  16 #define ADDR_TYPE_IP            2       /* Internet Protocol v4 */
  17 #define ADDR_TYPE_IP6           3       /* Internet Protocol v6 */
  18
  19 struct addr {
  20         uint16_t                addr_type;
  21         uint16_t                addr_bits;
  22         union {
  23                 eth_addr_t      __eth;
  24                 ip_addr_t       __ip;
  25                 ip6_addr_t      __ip6;
  26
  27                 uint8_t         __data8[16];
  28                 uint16_t        __data16[8];
  29                 uint32_t        __data32[4];
  30         } __addr_u;
  31 };
  32 #define addr_eth        __addr_u.__eth
  33 #define addr_ip         __addr_u.__ip
  34 #define addr_ip6        __addr_u.__ip6
  35 #define addr_data8      __addr_u.__data8
  36 #define addr_data16     __addr_u.__data16
  37 #define addr_data32     __addr_u.__data32
  38
  39 #define addr_pack(addr, type, bits, data, len) do {     \
  40         (addr)->addr_type = type;                       \
  41         (addr)->addr_bits = bits;                       \
  42         memmove((addr)->addr_data8, (char *)data, len); \
  43 } while (0)
  44
  45 __BEGIN_DECLS
  46 int      addr_cmp(const struct addr *a, const struct addr *b);
  47
  48 int      addr_bcast(const struct addr *a, struct addr *b);
  49 int      addr_net(const struct addr *a, struct addr *b);
  50
  51 char    *addr_ntop(const struct addr *src, char *dst, size_t size);
  52 int      addr_pton(const char *src, struct addr *dst);
  53
  54 char    *addr_ntoa(const struct addr *a);
  55 #define  addr_aton      addr_pton
  56
  57 int      addr_ntos(const struct addr *a, struct sockaddr *sa);
  58 int      addr_ston(const struct sockaddr *sa, struct addr *a);
  59
  60 int      addr_btos(uint16_t bits, struct sockaddr *sa);
  61 int      addr_stob(const struct sockaddr *sa, uint16_t *bits);
  62
  63 int      addr_btom(uint16_t bits, void *mask, size_t size);
  64 int      addr_mtob(const void *mask, size_t size, uint16_t *bits);
  65 __END_DECLS
  66
  67 #endif /* DNET_ADDR_H */