compat.h revision 181834 
1/*  -*- Mode: C -*-  */
2
3/* --- fake the preprocessor into handlng portability */
4/*
5 *  Time-stamp:      "2007-02-03 17:41:06 bkorb"
6 *
7 * Author:           Gary V Vaughan <gvaughan@oranda.demon.co.uk>
8 * Created:          Mon Jun 30 15:54:46 1997
9 *
10 * $Id: compat.h,v 4.16 2007/04/27 01:10:47 bkorb Exp $
11 */
12#ifndef COMPAT_H_GUARD
13#define COMPAT_H_GUARD 1
14
15#if defined(HAVE_CONFIG_H)
16#  include <config.h>
17
18#elif defined(_WIN32) && !defined(__CYGWIN__)
19#  include "windows-config.h"
20
21#else
22#  error "compat.h" requires "config.h"
23   choke me.
24#endif
25
26
27#ifndef HAVE_STRSIGNAL
28   char * strsignal( int signo );
29#endif
30
31#define  _GNU_SOURCE    1 /* for strsignal in GNU's libc */
32#define  __USE_GNU      1 /* exact same thing as above   */
33#define  __EXTENSIONS__ 1 /* and another way to call for it */
34
35/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
36 *
37 *  SYSTEM HEADERS:
38 */
39#include <sys/types.h>
40#ifdef HAVE_SYS_MMAN_H
41#  include <sys/mman.h>
42#endif
43#include <sys/param.h>
44#if HAVE_SYS_PROCSET_H
45#  include <sys/procset.h>
46#endif
47#include <sys/stat.h>
48#include <sys/wait.h>
49
50#if defined( HAVE_SOLARIS_SYSINFO )
51#  include <sys/systeminfo.h>
52#elif defined( HAVE_UNAME_SYSCALL )
53#  include <sys/utsname.h>
54#endif
55
56#ifdef DAEMON_ENABLED
57#  if HAVE_SYS_STROPTS_H
58#  include <sys/stropts.h>
59#  endif
60
61#  if HAVE_SYS_SOCKET_H
62#  include <sys/socket.h>
63#  endif
64
65#  if ! defined(HAVE_SYS_POLL_H) && ! defined(HAVE_SYS_SELECT_H)
66#    error This system cannot support daemon processing
67     Choke Me.
68#  endif
69
70#  if HAVE_SYS_POLL_H
71#  include <sys/poll.h>
72#  endif
73
74#  if HAVE_SYS_SELECT_H
75#  include <sys/select.h>
76#  endif
77
78#  if HAVE_NETINET_IN_H
79#  include <netinet/in.h>
80#  endif
81
82#  if HAVE_SYS_UN_H
83#  include <sys/un.h>
84#  endif
85#endif
86
87/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
88 *
89 *  USER HEADERS:
90 */
91#include <stdio.h>
92#include <assert.h>
93#include <ctype.h>
94
95/*
96 *  Directory opening stuff:
97 */
98# if defined (_POSIX_SOURCE)
99/* Posix does not require that the d_ino field be present, and some
100   systems do not provide it. */
101#    define REAL_DIR_ENTRY(dp) 1
102# else /* !_POSIX_SOURCE */
103#    define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
104# endif /* !_POSIX_SOURCE */
105
106# if defined (HAVE_DIRENT_H)
107#   include <dirent.h>
108#   define D_NAMLEN(dirent) strlen((dirent)->d_name)
109# else /* !HAVE_DIRENT_H */
110#   define dirent direct
111#   define D_NAMLEN(dirent) (dirent)->d_namlen
112#   if defined (HAVE_SYS_NDIR_H)
113#     include <sys/ndir.h>
114#   endif /* HAVE_SYS_NDIR_H */
115#   if defined (HAVE_SYS_DIR_H)
116#     include <sys/dir.h>
117#   endif /* HAVE_SYS_DIR_H */
118#   if defined (HAVE_NDIR_H)
119#     include <ndir.h>
120#   endif /* HAVE_NDIR_H */
121# endif /* !HAVE_DIRENT_H */
122
123#include <errno.h>
124#ifdef HAVE_FCNTL_H
125# include <fcntl.h>
126#endif
127#ifndef O_NONBLOCK
128# define O_NONBLOCK FNDELAY
129#endif
130
131#if defined(HAVE_LIBGEN) && defined(HAVE_LIBGEN_H)
132#  include <libgen.h>
133#endif
134
135#if defined(HAVE_LIMITS_H)  /* this is also in options.h */
136#  include <limits.h>
137#elif defined(HAVE_SYS_LIMITS_H)
138#  include <sys/limits.h>
139#endif /* HAVE_LIMITS/SYS_LIMITS_H */
140
141#include <memory.h>
142#include <setjmp.h>
143#include <signal.h>
144
145#if defined( HAVE_STDINT_H )
146#  include <stdint.h>
147#elif defined( HAVE_INTTYPES_H )
148#  include <inttypes.h>
149#endif
150
151#include <stdlib.h>
152#include <string.h>
153
154#include <time.h>
155
156#ifdef HAVE_UTIME_H
157#  include <utime.h>
158#endif
159
160#ifdef HAVE_UNISTD_H
161#  include <unistd.h>
162#endif
163
164/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
165 *
166 *  FIXUPS and CONVIENCE STUFF:
167 */
168#ifdef __cplusplus
169#   define EXTERN extern "C"
170#else
171#   define EXTERN extern
172#endif
173
174/* some systems #def errno! and others do not declare it!! */
175#ifndef errno
176   extern int errno;
177#endif
178
179/* Some machines forget this! */
180
181# ifndef EXIT_FAILURE
182#   define EXIT_SUCCESS 0
183#   define EXIT_FAILURE 1
184# endif
185
186#ifndef NUL
187#  define NUL '\0'
188#endif
189
190#ifndef NULL
191#  define NULL 0
192#endif
193
194#if !defined (MAXPATHLEN) && defined (HAVE_SYS_PARAM_H)
195#  include <sys/param.h>
196#endif /* !MAXPATHLEN && HAVE_SYS_PARAM_H */
197
198#if !defined (MAXPATHLEN) && defined (PATH_MAX)
199#  define MAXPATHLEN PATH_MAX
200#endif /* !MAXPATHLEN && PATH_MAX */
201
202#if !defined (MAXPATHLEN) && defined(_MAX_PATH)
203#  define PATH_MAX _MAX_PATH
204#  define MAXPATHLEN _MAX_PATH
205#endif
206
207#if !defined (MAXPATHLEN)
208#  define MAXPATHLEN ((size_t)4096)
209#endif /* MAXPATHLEN */
210
211#define AG_PATH_MAX  ((size_t)MAXPATHLEN)
212
213#ifndef LONG_MAX
214#  define LONG_MAX      ~(1L << (8*sizeof(long) -1))
215#  define INT_MAX       ~(1 << (8*sizeof(int) -1))
216#endif
217
218#ifndef ULONG_MAX
219#  define ULONG_MAX     ~(OUL)
220#  define UINT_MAX      ~(OU)
221#endif
222
223#ifndef SHORT_MAX
224#  define SHORT_MAX     ~(1 << (8*sizeof(short) -1))
225#else
226#  define USHORT_MAX    ~(OUS)
227#endif
228
229#ifndef HAVE_INT8_T
230  typedef signed char       int8_t;
231#endif
232#ifndef HAVE_UINT8_T
233  typedef unsigned char     uint8_t;
234#endif
235#ifndef HAVE_INT16_T
236  typedef signed short      int16_t;
237#endif
238#ifndef HAVE_UINT16_T
239  typedef unsigned short    uint16_t;
240#endif
241#ifndef HAVE_UINT_T
242  typedef unsigned int      uint_t;
243#endif
244
245#ifndef HAVE_INT32_T
246# if SIZEOF_INT == 4
247        typedef signed int      int32_t;
248# elif SIZEOF_LONG == 4
249        typedef signed long     int32_t;
250# endif
251#endif
252
253#ifndef HAVE_UINT32_T
254# if SIZEOF_INT == 4
255        typedef unsigned int    uint32_t;
256# elif SIZEOF_LONG == 4
257        typedef unsigned long   uint32_t;
258# else
259#   error Cannot create a uint32_t type.
260    Choke Me.
261# endif
262#endif
263
264#ifndef HAVE_INTPTR_T
265  typedef signed long   intptr_t;
266#endif
267#ifndef HAVE_UINTPTR_T
268  typedef unsigned long uintptr_t;
269#endif
270
271/* redefine these for BSD style string libraries */
272#ifndef HAVE_STRCHR
273#  define strchr        index
274#  define strrchr       rindex
275#endif
276
277#ifdef USE_FOPEN_BINARY
278#  ifndef FOPEN_BINARY_FLAG
279#    define FOPEN_BINARY_FLAG   "b"
280#  endif
281#  ifndef FOPEN_TEXT_FLAG
282#    define FOPEN_TEXT_FLAG     "t"
283#  endif
284#else
285#  ifndef FOPEN_BINARY_FLAG
286#    define FOPEN_BINARY_FLAG
287#  endif
288#  ifndef FOPEN_TEXT_FLAG
289#    define FOPEN_TEXT_FLAG
290#  endif
291#endif
292
293#ifndef STR
294#  define _STR(s) #s
295#  define STR(s)  _STR(s)
296#endif
297
298/* ##### Pointer sized word ##### */
299
300/* FIXME:  the MAX stuff in here is broken! */
301#if SIZEOF_CHARP > SIZEOF_INT
302   typedef long t_word;
303   #define WORD_MAX  LONG_MAX
304   #define WORD_MIN  LONG_MIN
305#else /* SIZEOF_CHARP <= SIZEOF_INT */
306   typedef int t_word;
307   #define WORD_MAX  INT_MAX
308   #define WORD_MIN  INT_MIN
309#endif
310
311#endif /* COMPAT_H_GUARD */
312
313/*
314 * Local Variables:
315 * mode: C
316 * c-file-style: "stroustrup"
317 * indent-tabs-mode: nil
318 * End:
319 * end of compat/compat.h */
320