contrib/ntp/libopts/compat/compat.h

   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 */