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 # ifndef STDIN_FILENO
  40 #  define STDIN_FILENO  0
  41 #  define STDOUT_FILENO 1
  42 #  define STDERR_FILENO 2
  43 # endif
  44 # ifdef HAVE_DIRECT_H
  45 #  include <direct.h>
  46 # endif
  47 # ifdef HAVE_PROCESS_H
  48 #  include <process.h>
  49 # endif
  50 # if defined(_MSC_VER) || defined(__MINGW32__)
  51 #  define POPEN_RT      "rt"
  52 #  define POPEN_WT      "wt"
  53 #  define popen(c,m)    _popen(c,m)
  54 #  define pclose(p)     _pclose(p)
  55 #  define pipe(pfd)     _pipe((pfd),0,_O_BINARY|_O_NOINHERIT)
  56 #  define mkdir(p,m)    _mkdir(p)
  57 #  define setmode(f,m)  _setmode(f,m)
  58 #  define WAIT(s,p,m)   _cwait(s,p,m)
  59 #  define creat(p,m)    _creat(p,m)
  60 #  define read(f,b,s)   _read(f,b,s)
  61 # endif
  62 # define SET_BINARY(f)  do {if (!isatty(f)) setmode(f,O_BINARY);} while(0)
  63 # define FOPEN_RB       "rb"
  64 # define FOPEN_WB       "wb"
  65 # define FOPEN_RWB      "wb+"
  66 # ifndef O_BINARY
  67 #  ifdef _O_BINARY
  68 #   define O_BINARY     (_O_BINARY)
  69 #  endif
  70 # endif
  71
  72 /* The system shell.  Groff assumes a Unixy shell, but non-Posix
  73    systems don't have standard places where it lives, and might not
  74    have it installed to begin with.  We want to give them some leeway.  */
  75 # ifdef __EMX__
  76 #  define getcwd(b,s)   _getcwd2(b,s)
  77 # else
  78 #  define BSHELL        (system_shell_name())
  79 #  define BSHELL_DASH_C (system_shell_dash_c())
  80 #  define IS_BSHELL(s)  (is_system_shell(s))
  81 # endif
  82
  83 /* The separator for directories in PATH and other environment
  84    variables.  */
  85 # define PATH_SEP       ";"
  86 # define PATH_SEP_CHAR  ';'
  87
  88 /* Characters that separate directories in a path name.  */
  89 # define DIR_SEPS       "/\\:"
  90
  91 /* How to tell if the argument is an absolute file name.  */
  92 # define IS_ABSOLUTE(f) \
  93  ((f)[0] == '/' || (f)[0] == '\\' || (f)[0] && (f)[1] == ':')
  94
  95 /* The executable extension.  */
  96 # define EXE_EXT        ".exe"
  97
  98 /* The system null device.  */
  99 # define NULL_DEV       "NUL"
 100
 101 /* The default place to create temporary files.  */
 102 # ifndef P_tmpdir
 103 #  ifdef _P_tmpdir
 104 #   define P_tmpdir     _P_tmpdir
 105 #  else
 106 #   define P_tmpdir     "c:/temp"
 107 #  endif
 108 # endif
 109
 110 /* Prototypes.  */
 111 # ifdef __cplusplus
 112   extern "C" {
 113 # endif
 114     const char * system_shell_name(void);
 115     const char * system_shell_dash_c(void);
 116     int          is_system_shell(const char *);
 117 # ifdef __cplusplus
 118   }
 119 # endif
 120
 121 #endif
 122
 123 /* Defaults, for Posix systems.  */
 124
 125 #ifndef SET_BINARY
 126 # define SET_BINARY(f)  do {} while(0)
 127 #endif
 128 #ifndef FOPEN_RB
 129 # define FOPEN_RB       "r"
 130 #endif
 131 #ifndef FOPEN_WB
 132 # define FOPEN_WB       "w"
 133 #endif
 134 #ifndef FOPEN_RWB
 135 # define FOPEN_RWB      "w+"
 136 #endif
 137 #ifndef POPEN_RT
 138 # define POPEN_RT       "r"
 139 #endif
 140 #ifndef POPEN_WT
 141 # define POPEN_WT       "w"
 142 #endif
 143 #ifndef O_BINARY
 144 # define O_BINARY       0
 145 #endif
 146 #ifndef BSHELL
 147 # define BSHELL         "/bin/sh"
 148 #endif
 149 #ifndef BSHELL_DASH_C
 150 # define BSHELL_DASH_C  "-c"
 151 #endif
 152 #ifndef IS_BSHELL
 153 # define IS_BSHELL(s)   ((s) && strcmp(s,BSHELL) == 0)
 154 #endif
 155 #ifndef PATH_SEP
 156 # define PATH_SEP       ":"
 157 # define PATH_SEP_CHAR  ':'
 158 #endif
 159 #ifndef DIR_SEPS
 160 # define DIR_SEPS       "/"
 161 #endif
 162 #ifndef IS_ABSOLUTE
 163 # define IS_ABSOLUTE(f) ((f)[0] == '/')
 164 #endif
 165 #ifndef EXE_EXT
 166 # define EXE_EXT        ""
 167 #endif
 168 #ifndef NULL_DEV
 169 # define NULL_DEV       "/dev/null"
 170 #endif
 171 #ifndef GS_NAME
 172 # define GS_NAME        "gs"
 173 #endif
 174 #ifndef WAIT
 175 # define WAIT(s,p,m)    wait(s)
 176 #endif
 177 #ifndef _WAIT_CHILD
 178 # define _WAIT_CHILD    0
 179 #endif