ext/dnet/os.h

   1 /*
   2  * os.h
   3  *
   4  * Sleazy OS-specific defines.
   5  *
   6  * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
   7  *
   8  * $Id: os.h,v 1.10 2004/05/04 03:19:42 dugsong Exp $
   9  */
  10
  11 #ifndef DNET_OS_H
  12 #define DNET_OS_H
  13
  14 #ifdef _WIN32
  15 # include <windows.h>
  16 # include <winsock2.h>
  17 # include <stdint.h>
  18 /* XXX */
  19 # undef IP_OPT_LSRR
  20 # undef IP_OPT_TS
  21 # undef IP_OPT_RR
  22 # undef IP_OPT_SSRR
  23 #else
  24 # include <sys/param.h>
  25 # include <sys/types.h>
  26 # include <sys/socket.h>
  27 # include <netinet/in.h>
  28 # include <arpa/inet.h>
  29 # include <netdb.h>
  30 # ifdef __bsdi__
  31 #  include <machine/types.h>
  32    typedef u_int8_t     uint8_t;
  33    typedef u_int16_t    uint16_t;
  34    typedef u_int32_t    uint32_t;
  35    typedef u_int64_t    uint64_t;
  36 # else
  37 #  include <inttypes.h>
  38 # endif
  39 #endif
  40
  41 #define DNET_LIL_ENDIAN         1234
  42 #define DNET_BIG_ENDIAN         4321
  43
  44 /* BSD and IRIX */
  45 #ifdef BYTE_ORDER
  46 #if BYTE_ORDER == LITTLE_ENDIAN
  47 # define DNET_BYTESEX           DNET_LIL_ENDIAN
  48 #elif BYTE_ORDER == BIG_ENDIAN
  49 # define DNET_BYTESEX           DNET_BIG_ENDIAN
  50 #endif
  51 #endif
  52
  53 /* Linux */
  54 #ifdef __BYTE_ORDER
  55 #if __BYTE_ORDER == __LITTLE_ENDIAN
  56 # define DNET_BYTESEX           DNET_LIL_ENDIAN
  57 #elif __BYTE_ORDER == __BIG_ENDIAN
  58 # define DNET_BYTESEX           DNET_BIG_ENDIAN
  59 #endif
  60 #endif
  61
  62 /* Solaris */
  63 #if defined(_BIT_FIELDS_LTOH)
  64 # define DNET_BYTESEX           DNET_LIL_ENDIAN
  65 #elif defined (_BIT_FIELDS_HTOL)
  66 # define DNET_BYTESEX           DNET_BIG_ENDIAN
  67 #endif
  68
  69 /* Nastiness from old BIND code. */
  70 #ifndef DNET_BYTESEX
  71 # if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \
  72     defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
  73     defined(__alpha__) || defined(__alpha)
  74 #  define DNET_BYTESEX          DNET_LIL_ENDIAN
  75 # elif defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
  76     defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
  77     defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
  78     defined(apollo) || defined(__convex__) || defined(_CRAY) || \
  79     defined(__hppa) || defined(__hp9000) || \
  80     defined(__hp9000s300) || defined(__hp9000s700) || defined(__ia64) || \
  81     defined (BIT_ZERO_ON_LEFT) || defined(m68k)
  82 #  define DNET_BYTESEX          DNET_BIG_ENDIAN
  83 # else
  84 #  error "bytesex unknown"
  85 # endif
  86 #endif
  87
  88 /* C++ support. */
  89 #undef __BEGIN_DECLS
  90 #undef __END_DECLS
  91 #ifdef __cplusplus
  92 # define __BEGIN_DECLS  extern "C" {
  93 # define __END_DECLS    } /* extern "C" */
  94 #else
  95 # define __BEGIN_DECLS
  96 # define __END_DECLS
  97 #endif
  98
  99 /* Support for flexible arrays. */
 100 #undef __flexarr
 101 #if !defined(__clang__) && defined(__GNUC__) && \
 102     ((__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97))
 103 /* GCC 2.97 supports C99 flexible array members.  */
 104 # define __flexarr      []
 105 #else
 106 # ifdef __GNUC__
 107 #  define __flexarr     [0]
 108 # else
 109 #  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
 110 #   define __flexarr    []
 111 #  else
 112 /* Some other non-C99 compiler. Approximate with [1]. */
 113 #   define __flexarr    [1]
 114 #  endif
 115 # endif
 116 #endif
 117
 118 #endif /* DNET_OS_H */