src/include/nonposix.h

   1 /* Copyright (C) 2000 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 # define setmode(f,m) _setmode(f,m)
  28 # define fileno(f)    _fileno(f)
  29 #endif
  30
  31 #if defined(__MSDOS__) || (defined(_WIN32) && !defined(__CYGWIN32__))
  32
  33 /* Binary I/O nuisances.  Note: "setmode" is right for DJGPP and
  34    Borland; Windows compilers might need _setmode or some such.  */
  35 # include <fcntl.h>
  36 # include <io.h>
  37 # ifdef HAVE_UNISTD_H
  38 #  include <unistd.h>
  39 # endif
  40 # define SET_BINARY(f) do {if (!isatty(f)) setmode(f,O_BINARY);} while(0)
  41 # define FOPEN_RB      "rb"
  42 # define FOPEN_WB      "wb"
  43 # define FOPEN_RWB     "wb+"
  44 # ifdef _MSC_VER
  45 #  define POPEN_RT     "rt"
  46 #  define POPEN_WT     "wt"
  47 #  define popen(c,m)   _popen(c,m)
  48 #  define pclose(p)    _pclose(p)
  49 #  define getpid()     (1)
  50 # endif
  51 # ifndef O_BINARY
  52 #  ifdef _O_BINARY
  53 #   define O_BINARY    (_O_BINARY)
  54 #  endif
  55 # endif
  56
  57 /* The system shell.  Groff assumes a Unixy shell, but non-Posix
  58    systems don't have standard places where it lives, and might not
  59    have it installed to begin with.  We want to give them some leeway.  */
  60 # define BSHELL        (system_shell_name())
  61 # define BSHELL_DASH_C (system_shell_dash_c())
  62 # define IS_BSHELL(s)  (is_system_shell(s))
  63
  64 /* The separator for directories in PATH and other environment
  65    variables.  */
  66 # define PATH_SEP      ";"
  67
  68 /* Characters that separate directories in a path name.  */
  69 # define DIR_SEPS      "/\\:"
  70
  71 /* How to tell if the argument is an absolute file name.  */
  72 # define IS_ABSOLUTE(f) \
  73  ((f)[0] == '/' || (f)[0] == '\\' || (f)[0] && (f)[1] == ':')
  74
  75 /* The executable extension.  */
  76 # define EXE_EXT       ".exe"
  77
  78 /* The system null device.  */
  79 # define NULL_DEV      "NUL"
  80
  81 /* Prototypes.  */
  82 # ifdef __cplusplus
  83   extern "C" {
  84 # endif
  85     const char * system_shell_name(void);
  86     const char * system_shell_dash_c(void);
  87     int          is_system_shell(const char *);
  88 # ifdef __cplusplus
  89   }
  90 # endif
  91
  92 #endif
  93
  94 /* Defaults, for Posix systems.  */
  95
  96 #ifndef FOPEN_RB
  97 # define FOPEN_RB      "r"
  98 #endif
  99 #ifndef FOPEN_WB
 100 # define FOPEN_WB      "w"
 101 #endif
 102 #ifndef FOPEN_RWB
 103 # define FOPEN_RWB     "w+"
 104 #endif
 105 #ifndef POPEN_RT
 106 # define POPEN_RT      "r"
 107 #endif
 108 #ifndef POPEN_WT
 109 # define POPEN_WT      "w"
 110 #endif
 111 #ifndef O_BINARY
 112 # define O_BINARY      0
 113 #endif
 114 #ifndef BSHELL
 115 # define BSHELL        "/bin/sh"
 116 #endif
 117 #ifndef BSHELL_DASH_C
 118 # define BSHELL_DASH_C "-c"
 119 #endif
 120 #ifndef IS_BSHELL
 121 # define IS_BSHELL(s)  ((s) && strcmp(s,BSHELL) == 0)
 122 #endif
 123 #ifndef PATH_SEP
 124 # define PATH_SEP      ":"
 125 #endif
 126 #ifndef DIR_SEPS
 127 # define DIR_SEPS      "/"
 128 #endif
 129 #ifndef IS_ABSOLUTE
 130 # define IS_ABSOLUTE(f) ((f)[0] == '/')
 131 #endif
 132 #ifndef EXE_EXT
 133 # define EXE_EXT       ""
 134 #endif
 135 #ifndef NULL_DEV
 136 # define NULL_DEV      "/dev/null"
 137 #endif