include/inaddr.h

   1 /*
   2  * Copyright 2010 Detlef Riekenberg
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  */
  19
  20 #ifndef __INADDR_H__
  21 #define __INADDR_H__
  22
  23 #ifdef USE_WS_PREFIX
  24 #define WS(x)    WS_##x
  25 #else
  26 #define WS(x)    x
  27 #endif
  28
  29 typedef struct WS(in_addr)
  30 {
  31     union {
  32         struct {
  33             UCHAR s_b1,s_b2,s_b3,s_b4;
  34         } S_un_b;
  35         struct {
  36             USHORT s_w1,s_w2;
  37         } S_un_w;
  38         ULONG S_addr;
  39     } S_un;
  40 } IN_ADDR, *PIN_ADDR, *LPIN_ADDR;
  41
  42 #undef WS
  43
  44 #ifndef USE_WS_PREFIX
  45 #define s_addr  S_un.S_addr
  46 #define s_net   S_un.S_un_b.s_b1
  47 #define s_host  S_un.S_un_b.s_b2
  48 #define s_lh    S_un.S_un_b.s_b3
  49 #define s_impno S_un.S_un_b.s_b4
  50 #define s_imp   S_un.S_un_w.s_w2
  51 #endif  /* USE_WS_PREFIX */
  52
  53 #endif /* __INADDR_H__ */