source/texk/kpathsea/c-fopen.h

   1 /* c-fopen.h: how to open files with fopen.
   2
   3    Copyright 1992, 1994, 1995, 1996, 2008, 2011 Karl Berry.
   4    Copyright 1998, 2005 Olaf Weber.
   5
   6    This library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    This library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public License
  17    along with this library; if not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef C_FOPEN_H
  20 #define C_FOPEN_H
  21
  22 /* How to open a text file:  */
  23 /* From Akira:
  24    I'm using Unix style line ending character to write text files.
  25    I find it is easiest to define FOPEN_W_MODE == FOPEN_WBIN_MODE etc. for
  26    my purpose.  */
  27 #ifndef FOPEN_A_MODE
  28 #define FOPEN_A_MODE "ab"
  29 #endif
  30
  31 #ifndef FOPEN_R_MODE
  32 #define FOPEN_R_MODE "r"
  33 #endif
  34
  35 #ifndef FOPEN_W_MODE
  36 #define FOPEN_W_MODE "wb"
  37 #endif
  38
  39 /* How to open a binary file for reading:  */
  40 #ifndef FOPEN_RBIN_MODE
  41 #define FOPEN_RBIN_MODE "rb"
  42 #endif /* not FOPEN_RBIN_MODE */
  43
  44 /* How to open a binary file for writing:  */
  45 #ifndef FOPEN_WBIN_MODE
  46 #define FOPEN_WBIN_MODE "wb"
  47 #endif /* not FOPEN_WBIN_MODE */
  48
  49 /* How to open a binary file for appending:  */
  50 #ifndef FOPEN_ABIN_MODE
  51 #define FOPEN_ABIN_MODE "ab"
  52 #endif /* not FOPEN_ABIN_MODE */
  53
  54 /* How to switch an already open file handle to binary mode.
  55    Used on DOSISH systems when we need to switch a standard
  56    stream, such as stdin or stdout, to binary mode.
  57    We never use the value return by setmode().  */
  58 #include <fcntl.h>
  59 #ifdef DOSISH
  60 #include <io.h>
  61 #ifndef O_BINARY
  62 #ifdef _O_BINARY
  63 #define O_BINARY _O_BINARY
  64 #endif
  65 #endif
  66 #if defined (__i386_pc_gnu__) || \
  67     defined (WIN32) || defined (__WIN32__) || defined (_WIN32)
  68 #define SET_BINARY(f) (void)setmode((f), O_BINARY)
  69 #endif
  70 #else  /* not DOSISH */
  71 #ifndef O_BINARY
  72 #define O_BINARY 0
  73 #endif
  74 #define SET_BINARY(f) (void)0
  75 #endif /* not DOSISH */
  76
  77 #endif /* not C_FOPEN_H */