src/libopts/compat/compat.h

   1 /*  -*- Mode: C -*-  */
   2
   3 /**
   4  * \file compat.h --- fake the preprocessor into handlng portability
   5  *
   6  *  Time-stamp:      "2012-02-28 19:40:44 bkorb"
   7  *
   8  *  compat.h is free software.
   9  *  This file is part of AutoGen.
  10  *
  11  *  AutoGen Copyright (c) 1992-2012 by Bruce Korb - all rights reserved
  12  *
  13  *  AutoGen is free software: you can redistribute it and/or modify it
  14  *  under the terms of the GNU General Public License as published by the
  15  *  Free Software Foundation, either version 3 of the License, or
  16  *  (at your option) any later version.
  17  *
  18  *  AutoGen is distributed in the hope that it will be useful, but
  19  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  21  *  See the GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License along
  24  *  with this program.  If not, see <http://www.gnu.org/licenses/>.
  25  *
  26  *  As a special exception, Bruce Korb gives permission for additional
  27  *  uses of the text contained in the release of compat.h.
  28  *
  29  *  The exception is that, if you link the compat.h library with other
  30  *  files to produce an executable, this does not by itself cause the
  31  *  resulting executable to be covered by the GNU General Public License.
  32  *  Your use of that executable is in no way restricted on account of
  33  *  linking the compat.h library code into it.
  34  *
  35  *  This exception does not however invalidate any other reasons why
  36  *  the executable file might be covered by the GNU General Public License.
  37  *
  38  *  This exception applies only to the code released by Bruce Korb under
  39  *  the name compat.h.  If you copy code from other sources under the
  40  *  General Public License into a copy of compat.h, as the General Public
  41  *  License permits, the exception does not apply to the code that you add
  42  *  in this way.  To avoid misleading anyone as to the status of such
  43  *  modified files, you must delete this exception notice from them.
  44  *
  45  *  If you write modifications of your own for compat.h, it is your choice
  46  *  whether to permit this exception to apply to your modifications.
  47  *  If you do not wish that, delete this exception notice.
  48  */
  49 #ifndef COMPAT_H_GUARD
  50 #define COMPAT_H_GUARD 1
  51
  52 #if defined(HAVE_CONFIG_H)
  53 #  include <config.h>
  54
  55 #elif defined(_WIN32) && !defined(__CYGWIN__)
  56 #  include "windows-config.h"
  57
  58 #else
  59 #  error "compat.h" requires "config.h"
  60    choke me.
  61 #endif
  62
  63
  64 #ifndef HAVE_STRSIGNAL
  65    char * strsignal( int signo );
  66 #endif
  67
  68 #define  _GNU_SOURCE    1 /* for strsignal in GNU's libc */
  69 #define  __USE_GNU      1 /* exact same thing as above   */
  70 #define  __EXTENSIONS__ 1 /* and another way to call for it */
  71
  72 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  73  *
  74  *  SYSTEM HEADERS:
  75  */
  76 #include <sys/types.h>
  77 #ifdef HAVE_SYS_MMAN_H
  78 #  include <sys/mman.h>
  79 #endif
  80 #include <sys/param.h>
  81 #if HAVE_SYS_PROCSET_H
  82 #  include <sys/procset.h>
  83 #endif
  84 #include <sys/stat.h>
  85 #ifdef HAVE_SYS_WAIT_H
  86 #  include <sys/wait.h>
  87 #endif
  88
  89 #if defined( HAVE_SOLARIS_SYSINFO )
  90 #  include <sys/systeminfo.h>
  91 #elif defined( HAVE_UNAME_SYSCALL )
  92 #  include <sys/utsname.h>
  93 #endif
  94
  95 #ifdef DAEMON_ENABLED
  96 #  if HAVE_SYS_STROPTS_H
  97 #  include <sys/stropts.h>
  98 #  endif
  99
 100 #  if HAVE_SYS_SOCKET_H
 101 #  include <sys/socket.h>
 102 #  endif
 103
 104 #  if ! defined(HAVE_SYS_POLL_H) && ! defined(HAVE_SYS_SELECT_H)
 105 #    error This system cannot support daemon processing
 106      Choke Me.
 107 #  endif
 108
 109 #  if HAVE_SYS_POLL_H
 110 #  include <sys/poll.h>
 111 #  endif
 112
 113 #  if HAVE_SYS_SELECT_H
 114 #  include <sys/select.h>
 115 #  endif
 116
 117 #  if HAVE_NETINET_IN_H
 118 #  include <netinet/in.h>
 119 #  endif
 120
 121 #  if HAVE_SYS_UN_H
 122 #  include <sys/un.h>
 123 #  endif
 124 #endif
 125
 126 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 127  *
 128  *  USER HEADERS:
 129  */
 130 #include <stdio.h>
 131 #include <assert.h>
 132 #include <ctype.h>
 133
 134 /*
 135  *  Directory opening stuff:
 136  */
 137 # if defined (_POSIX_SOURCE)
 138 /* Posix does not require that the d_ino field be present, and some
 139    systems do not provide it. */
 140 #    define REAL_DIR_ENTRY(dp) 1
 141 # else /* !_POSIX_SOURCE */
 142 #    define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
 143 # endif /* !_POSIX_SOURCE */
 144
 145 # if defined (HAVE_DIRENT_H)
 146 #   include <dirent.h>
 147 #   define D_NAMLEN(dirent) strlen((dirent)->d_name)
 148 # else /* !HAVE_DIRENT_H */
 149 #   define dirent direct
 150 #   define D_NAMLEN(dirent) (dirent)->d_namlen
 151 #   if defined (HAVE_SYS_NDIR_H)
 152 #     include <sys/ndir.h>
 153 #   endif /* HAVE_SYS_NDIR_H */
 154 #   if defined (HAVE_SYS_DIR_H)
 155 #     include <sys/dir.h>
 156 #   endif /* HAVE_SYS_DIR_H */
 157 #   if defined (HAVE_NDIR_H)
 158 #     include <ndir.h>
 159 #   endif /* HAVE_NDIR_H */
 160 # endif /* !HAVE_DIRENT_H */
 161
 162 #include <errno.h>
 163 #ifdef HAVE_FCNTL_H
 164 # include <fcntl.h>
 165 #endif
 166 #ifndef O_NONBLOCK
 167 # define O_NONBLOCK FNDELAY
 168 #endif
 169
 170 #if defined(HAVE_LIBGEN) && defined(HAVE_LIBGEN_H)
 171 #  include <libgen.h>
 172 #endif
 173
 174 #if defined(HAVE_LIMITS_H)  /* this is also in options.h */
 175 #  include <limits.h>
 176 #elif defined(HAVE_SYS_LIMITS_H)
 177 #  include <sys/limits.h>
 178 #endif /* HAVE_LIMITS/SYS_LIMITS_H */
 179
 180 #include <memory.h>
 181 #include <setjmp.h>
 182 #include <signal.h>
 183
 184 #if defined(HAVE_STDINT_H)
 185 #  include <stdint.h>
 186
 187 #elif defined(HAVE_INTTYPES_H)
 188 #  include <inttypes.h>
 189 #endif
 190
 191 #include <stdlib.h>
 192 #include <string.h>
 193 #include <time.h>
 194
 195 #ifdef HAVE_UTIME_H
 196 #  include <utime.h>
 197 #endif
 198
 199 #ifdef HAVE_UNISTD_H
 200 #  include <unistd.h>
 201 #endif
 202
 203 #ifdef HAVE_STDBOOL_H
 204 #  include <stdbool.h>
 205 #else
 206    typedef enum { false = 0, true = 1 } _Bool;
 207 #  define bool _Bool
 208
 209    /* The other macros must be usable in preprocessor directives.  */
 210 #  define false 0
 211 #  define true 1
 212 #endif
 213
 214 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 215  *
 216  *  FIXUPS and CONVIENCE STUFF:
 217  */
 218 #ifdef __cplusplus
 219 #   define EXTERN extern "C"
 220 #else
 221 #   define EXTERN extern
 222 #endif
 223
 224 /* some systems #def errno! and others do not declare it!! */
 225 #ifndef errno
 226    extern int errno;
 227 #endif
 228
 229 /* Some machines forget this! */
 230
 231 # ifndef EXIT_FAILURE
 232 #   define EXIT_SUCCESS 0
 233 #   define EXIT_FAILURE 1
 234 # endif
 235
 236 #ifndef NUL
 237 #  define NUL '\0'
 238 #endif
 239
 240 #ifndef NULL
 241 #  define NULL 0
 242 #endif
 243
 244 #if !defined (MAXPATHLEN) && defined (HAVE_SYS_PARAM_H)
 245 #  include <sys/param.h>
 246 #endif /* !MAXPATHLEN && HAVE_SYS_PARAM_H */
 247
 248 #if !defined (MAXPATHLEN) && defined (PATH_MAX)
 249 #  define MAXPATHLEN PATH_MAX
 250 #endif /* !MAXPATHLEN && PATH_MAX */
 251
 252 #if !defined (MAXPATHLEN) && defined(_MAX_PATH)
 253 #  define PATH_MAX _MAX_PATH
 254 #  define MAXPATHLEN _MAX_PATH
 255 #endif
 256
 257 #if !defined (MAXPATHLEN)
 258 #  define MAXPATHLEN ((size_t)4096)
 259 #endif /* MAXPATHLEN */
 260
 261 #define AG_PATH_MAX  ((size_t)MAXPATHLEN)
 262
 263 #ifndef LONG_MAX
 264 #  define LONG_MAX      ~(1L << (8*sizeof(long) -1))
 265 #  define INT_MAX       ~(1 << (8*sizeof(int) -1))
 266 #endif
 267
 268 #ifndef ULONG_MAX
 269 #  define ULONG_MAX     ~(OUL)
 270 #  define UINT_MAX      ~(OU)
 271 #endif
 272
 273 #ifndef SHORT_MAX
 274 #  define SHORT_MAX     ~(1 << (8*sizeof(short) - 1))
 275 #else
 276 #  define USHORT_MAX    ~(OUS)
 277 #endif
 278
 279 #ifndef HAVE_INT8_T
 280   typedef signed char           int8_t;
 281 # define  HAVE_INT8_T           1
 282 #endif
 283 #ifndef HAVE_UINT8_T
 284   typedef unsigned char         uint8_t;
 285 # define  HAVE_UINT8_T          1
 286 #endif
 287 #ifndef HAVE_INT16_T
 288   typedef signed short          int16_t;
 289 # define  HAVE_INT16_T          1
 290 #endif
 291 #ifndef HAVE_UINT16_T
 292   typedef unsigned short        uint16_t;
 293 # define  HAVE_UINT16_T         1
 294 #endif
 295
 296 #ifndef HAVE_INT32_T
 297 # if SIZEOF_INT ==              4
 298     typedef signed int          int32_t;
 299 # elif SIZEOF_LONG ==           4
 300     typedef signed long         int32_t;
 301 # endif
 302 # define  HAVE_INT32_T          1
 303 #endif
 304
 305 #ifndef HAVE_UINT32_T
 306 # if SIZEOF_INT ==              4
 307     typedef unsigned int        uint32_t;
 308 # elif SIZEOF_LONG ==           4
 309     typedef unsigned long       uint32_t;
 310 # else
 311 #   error Cannot create a uint32_t type.
 312     Choke Me.
 313 # endif
 314 # define  HAVE_UINT32_T         1
 315 #endif
 316
 317 #ifndef HAVE_INTPTR_T
 318 # if SIZEOF_CHARP == SIZEOF_LONG
 319     typedef signed long         intptr_t;
 320 # else
 321     typedef signed int          intptr_t;
 322 # endif
 323 # define  HAVE_INTPTR_T         1
 324 #endif
 325
 326 #ifndef HAVE_UINTPTR_T
 327 # if SIZEOF_CHARP == SIZEOF_LONG
 328     typedef unsigned long       intptr_t;
 329 # else
 330     typedef unsigned int        intptr_t;
 331 # endif
 332 # define  HAVE_INTPTR_T         1
 333 #endif
 334
 335 #ifndef HAVE_UINT_T
 336   typedef unsigned int          uint_t;
 337 # define  HAVE_UINT_T           1
 338 #endif
 339
 340 #ifndef HAVE_SIZE_T
 341   typedef unsigned int          size_t;
 342 # define  HAVE_SIZE_T           1
 343 #endif
 344 #ifndef HAVE_WINT_T
 345   typedef unsigned int          wint_t;
 346 # define  HAVE_WINT_T           1
 347 #endif
 348 #ifndef HAVE_PID_T
 349   typedef signed int            pid_t;
 350 # define  HAVE_PID_T            1
 351 #endif
 352
 353 /* redefine these for BSD style string libraries */
 354 #ifndef HAVE_STRCHR
 355 #  define strchr            index
 356 #  define strrchr           rindex
 357 #endif
 358
 359 #ifdef USE_FOPEN_BINARY
 360 #  ifndef FOPEN_BINARY_FLAG
 361 #    define FOPEN_BINARY_FLAG   "b"
 362 #  endif
 363 #  ifndef FOPEN_TEXT_FLAG
 364 #    define FOPEN_TEXT_FLAG     "t"
 365 #  endif
 366 #else
 367 #  ifndef FOPEN_BINARY_FLAG
 368 #    define FOPEN_BINARY_FLAG
 369 #  endif
 370 #  ifndef FOPEN_TEXT_FLAG
 371 #    define FOPEN_TEXT_FLAG
 372 #  endif
 373 #endif
 374
 375 #ifndef STR
 376 #  define _STR(s) #s
 377 #  define STR(s)  _STR(s)
 378 #endif
 379
 380 /* ##### Pointer sized word ##### */
 381
 382 /* FIXME:  the MAX stuff in here is broken! */
 383 #if SIZEOF_CHARP > SIZEOF_INT
 384    typedef long t_word;
 385    #define WORD_MAX  LONG_MAX
 386    #define WORD_MIN  LONG_MIN
 387 #else /* SIZEOF_CHARP <= SIZEOF_INT */
 388    typedef int t_word;
 389    #define WORD_MAX  INT_MAX
 390    #define WORD_MIN  INT_MIN
 391 #endif
 392
 393 #endif /* COMPAT_H_GUARD */
 394
 395 /*
 396  * Local Variables:
 397  * mode: C
 398  * c-file-style: "stroustrup"
 399  * indent-tabs-mode: nil
 400  * End:
 401  * end of compat/compat.h */