src/include/nonposix.h

   1 /* Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   2      Written by Eli Zaretskii (eliz@is.elta.co.il)
   3
   4 This file is part of groff.
   5
   6 groff is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 2, or (at your option) any later
   9 version.
  10
  11 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License along
  17 with groff; see the file COPYING.  If not, write to the Free Software
  18 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
  19
  20 /* This header file compartmentalize all idiosyncrasies of non-Posix
  21    systems, such as MS-DOS, MS-Windows, etc.  */
  22
  23 #if defined _MSC_VER
  24 # ifndef _WIN32
  25 #  define _WIN32
  26 # endif
  27 #endif
  28
  29 #if defined(__MSDOS__) || defined(__EMX__) \
  30     || (defined(_WIN32) && !defined(_UWIN) && !defined(__CYGWIN__))
  31
  32 /* Binary I/O nuisances.  Note: "setmode" is right for DJGPP and
  33    Borland; Windows compilers might need _setmode or some such.  */
  34 # include <fcntl.h>
  35 # include <io.h>
  36 # ifdef HAVE_UNISTD_H
  37 #  include <unistd.h>
  38 # endif
  39 # ifdef _MSC_VER
  40 #  define POPEN_RT     "rt"
  41 #  define POPEN_WT     "wt"
  42 #  define popen(c,m)   _popen(c,m)
  43 #  define pclose(p)    _pclose(p)
  44 #  define getpid()     (1)
  45 #  define mkdir(p,m)   _mkdir(p)
  46 #  define setmode(f,m) _setmode(f,m)
  47 #  define WAIT(s,p,m)  _cwait(s,p,m)
  48 #  define creat(p,m)   _creat(p,m)
  49 # endif
  50 # define SET_BINARY(f) do {if (!isatty(f)) setmode(f,O_BINARY);} while(0)
  51 # define FOPEN_RB      "rb"
  52 # define FOPEN_WB      "wb"
  53 # define FOPEN_RWB     "wb+"
  54 # ifndef O_BINARY
  55 #  ifdef _O_BINARY
  56 #   define O_BINARY    (_O_BINARY)
  57 #  endif
  58 # endif
  59
  60 /* The system shell.  Groff assumes a Unixy shell, but non-Posix
  61    systems don't have standard places where it lives, and might not
  62    have it installed to begin with.  We want to give them some leeway.  */
  63 # ifdef __EMX__
  64 #  define getcwd(b,s)  _getcwd2(b,s)
  65 # else
  66 #  define BSHELL        (system_shell_name())
  67 #  define BSHELL_DASH_C (system_shell_dash_c())
  68 #  define IS_BSHELL(s)  (is_system_shell(s))
  69 # endif
  70
  71 /* The separator for directories in PATH and other environment
  72    variables.  */
  73 # define PATH_SEP      ";"
  74
  75 /* Characters that separate directories in a path name.  */
  76 # define DIR_SEPS      "/\\:"
  77
  78 /* How to tell if the argument is an absolute file name.  */
  79 # define IS_ABSOLUTE(f) \
  80  ((f)[0] == '/' || (f)[0] == '\\' || (f)[0] && (f)[1] == ':')
  81
  82 /* The executable extension.  */
  83 # define EXE_EXT       ".exe"
  84
  85 /* The system null device.  */
  86 # define NULL_DEV      "NUL"
  87
  88 /* Prototypes.  */
  89 # ifdef __cplusplus
  90   extern "C" {
  91 # endif
  92     const char * system_shell_name(void);
  93     const char * system_shell_dash_c(void);
  94     int          is_system_shell(const char *);
  95 # ifdef __cplusplus
  96   }
  97 # endif
  98
  99 #endif
 100
 101 /* Defaults, for Posix systems.  */
 102
 103 #ifndef SET_BINARY
 104 # define SET_BINARY(f) do {} while(0)
 105 #endif
 106 #ifndef FOPEN_RB
 107 # define FOPEN_RB      "r"
 108 #endif
 109 #ifndef FOPEN_WB
 110 # define FOPEN_WB      "w"
 111 #endif
 112 #ifndef FOPEN_RWB
 113 # define FOPEN_RWB     "w+"
 114 #endif
 115 #ifndef POPEN_RT
 116 # define POPEN_RT      "r"
 117 #endif
 118 #ifndef POPEN_WT
 119 # define POPEN_WT      "w"
 120 #endif
 121 #ifndef O_BINARY
 122 # define O_BINARY      0
 123 #endif
 124 #ifndef BSHELL
 125 # define BSHELL        "/bin/sh"
 126 #endif
 127 #ifndef BSHELL_DASH_C
 128 # define BSHELL_DASH_C "-c"
 129 #endif
 130 #ifndef IS_BSHELL
 131 # define IS_BSHELL(s)  ((s) && strcmp(s,BSHELL) == 0)
 132 #endif
 133 #ifndef PATH_SEP
 134 # define PATH_SEP      ":"
 135 #endif
 136 #ifndef DIR_SEPS
 137 # define DIR_SEPS      "/"
 138 #endif
 139 #ifndef IS_ABSOLUTE
 140 # define IS_ABSOLUTE(f) ((f)[0] == '/')
 141 #endif
 142 #ifndef EXE_EXT
 143 # define EXE_EXT       ""
 144 #endif
 145 #ifndef NULL_DEV
 146 # define NULL_DEV      "/dev/null"
 147 #endif
 148 #ifndef GS_NAME
 149 # define GS_NAME       "gs"
 150 #endif
 151 #ifndef WAIT
 152 # define WAIT(s,p,m)   wait(s)
 153 #endif
 154 #ifndef _WAIT_CHILD
 155 # define _WAIT_CHILD   0
 156 #endif