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libiconv

    1: /* Binary mode I/O.
    2:    Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc.
    3: 
    4:    This program is free software: you can redistribute it and/or modify
    5:    it under the terms of the GNU General Public License as published by
    6:    the Free Software Foundation; either version 3 of the License, or
    7:    (at your option) any later version.
    8: 
    9:    This program is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   12:    GNU General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU General Public License
   15:    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
   16: 
   17: #ifndef _BINARY_H
   18: #define _BINARY_H
   19: 
   20: /* For systems that distinguish between text and binary I/O.
   21:    O_BINARY is usually declared in <fcntl.h>. */
   22: #include <fcntl.h>
   23: 
   24: /* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...',
   25:    so we include it here first.  */
   26: #include <stdio.h>
   27: 
   28: #if !defined O_BINARY && defined _O_BINARY
   29:   /* For MSC-compatible compilers.  */
   30: # define O_BINARY _O_BINARY
   31: # define O_TEXT _O_TEXT
   32: #endif
   33: #if defined __BEOS__ || defined __HAIKU__
   34:   /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect.  */
   35: # undef O_BINARY
   36: # undef O_TEXT
   37: #endif
   38: #if O_BINARY
   39: # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
   40: #  include <io.h> /* declares setmode() */
   41: # else
   42: #  define setmode _setmode
   43: #  undef fileno
   44: #  define fileno _fileno
   45: # endif
   46: # ifdef __DJGPP__
   47: #  include <unistd.h> /* declares isatty() */
   48: #  /* Avoid putting stdin/stdout in binary mode if it is connected to the
   49: #     console, because that would make it impossible for the user to
   50: #     interrupt the program through Ctrl-C or Ctrl-Break.  */
   51: #  define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)
   52: # else
   53: #  define SET_BINARY(fd) setmode (fd, O_BINARY)
   54: # endif
   55: #else
   56:   /* On reasonable systems, binary I/O is the default.  */
   57: # undef O_BINARY
   58: # define O_BINARY 0
   59: # define SET_BINARY(fd) /* nothing */
   60: #endif
   61: 
   62: #endif /* _BINARY_H */