195b7b453SJohn Marino /* Binary mode I/O. 2*200fbe8dSJohn Marino Copyright (C) 2001, 2003, 2005, 2008-2011 Free Software Foundation, Inc. 395b7b453SJohn Marino 495b7b453SJohn Marino This program is free software: you can redistribute it and/or modify 595b7b453SJohn Marino it under the terms of the GNU General Public License as published by 695b7b453SJohn Marino the Free Software Foundation; either version 3 of the License, or 795b7b453SJohn Marino (at your option) any later version. 895b7b453SJohn Marino 995b7b453SJohn Marino This program is distributed in the hope that it will be useful, 1095b7b453SJohn Marino but WITHOUT ANY WARRANTY; without even the implied warranty of 1195b7b453SJohn Marino MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1295b7b453SJohn Marino GNU General Public License for more details. 1395b7b453SJohn Marino 1495b7b453SJohn Marino You should have received a copy of the GNU General Public License 1595b7b453SJohn Marino along with this program. If not, see <http://www.gnu.org/licenses/>. */ 1695b7b453SJohn Marino 1795b7b453SJohn Marino #ifndef _BINARY_H 1895b7b453SJohn Marino #define _BINARY_H 1995b7b453SJohn Marino 2095b7b453SJohn Marino /* For systems that distinguish between text and binary I/O. 21*200fbe8dSJohn Marino O_BINARY is guaranteed by the gnulib <fcntl.h>. */ 2295b7b453SJohn Marino #include <fcntl.h> 2395b7b453SJohn Marino 2495b7b453SJohn Marino /* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...', 2595b7b453SJohn Marino so we include it here first. */ 2695b7b453SJohn Marino #include <stdio.h> 2795b7b453SJohn Marino 2895b7b453SJohn Marino /* SET_BINARY (fd); 2995b7b453SJohn Marino changes the file descriptor fd to perform binary I/O. */ 3095b7b453SJohn Marino #if O_BINARY 3195b7b453SJohn Marino # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ 3295b7b453SJohn Marino # include <io.h> /* declares setmode() */ 3395b7b453SJohn Marino # else 3495b7b453SJohn Marino # define setmode _setmode 3595b7b453SJohn Marino # undef fileno 3695b7b453SJohn Marino # define fileno _fileno 3795b7b453SJohn Marino # endif 3895b7b453SJohn Marino # ifdef __DJGPP__ 3995b7b453SJohn Marino # include <unistd.h> /* declares isatty() */ 4095b7b453SJohn Marino /* Avoid putting stdin/stdout in binary mode if it is connected to 4195b7b453SJohn Marino the console, because that would make it impossible for the user 4295b7b453SJohn Marino to interrupt the program through Ctrl-C or Ctrl-Break. */ 4395b7b453SJohn Marino # define SET_BINARY(fd) ((void) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)) 4495b7b453SJohn Marino # else 4595b7b453SJohn Marino # define SET_BINARY(fd) ((void) setmode (fd, O_BINARY)) 4695b7b453SJohn Marino # endif 4795b7b453SJohn Marino #else 4895b7b453SJohn Marino /* On reasonable systems, binary I/O is the default. */ 4995b7b453SJohn Marino # define SET_BINARY(fd) /* do nothing */ ((void) 0) 5095b7b453SJohn Marino #endif 5195b7b453SJohn Marino 5295b7b453SJohn Marino #endif /* _BINARY_H */ 53