os.h revision 10271:0edd36ea6130 
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 */
119