mingw-w64-headers/include/inaddr.h

/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 */

#ifndef s_addr

#ifdef __LP64__
#pragma push_macro("u_long")
#undef u_long
#define u_long __ms_u_long
#endif

#include <_bsd_types.h>

typedef struct in_addr {
  union {
    struct { u_char  s_b1, s_b2, s_b3, s_b4; } S_un_b;
    struct { u_short s_w1, s_w2; } S_un_w;
    u_long S_addr;
  } S_un;
} IN_ADDR, *PIN_ADDR, *LPIN_ADDR;

#define s_addr	S_un.S_addr
#define s_host	S_un.S_un_b.s_b2
#define s_net	S_un.S_un_b.s_b1
#define s_imp	S_un.S_un_w.s_w2
#define s_impno	S_un.S_un_b.s_b4
#define s_lh	S_un.S_un_b.s_b3

#ifdef __LP64__
#pragma pop_macro("u_long")
#endif

#endif /* s_addr */