1*a9fa9459Szrj /* Binary mode I/O. 2*a9fa9459Szrj Copyright (C) 2001-2016 Free Software Foundation, Inc. 3*a9fa9459Szrj 4*a9fa9459Szrj This program is free software: you can redistribute it and/or modify 5*a9fa9459Szrj it under the terms of the GNU General Public License as published by 6*a9fa9459Szrj the Free Software Foundation; either version 3 of the License, or 7*a9fa9459Szrj (at your option) any later version. 8*a9fa9459Szrj 9*a9fa9459Szrj This program is distributed in the hope that it will be useful, 10*a9fa9459Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 11*a9fa9459Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12*a9fa9459Szrj GNU General Public License for more details. 13*a9fa9459Szrj 14*a9fa9459Szrj You should have received a copy of the GNU General Public License 15*a9fa9459Szrj along with this program. If not, see <http://www.gnu.org/licenses/>. */ 16*a9fa9459Szrj 17*a9fa9459Szrj #ifndef _BINARY_H 18*a9fa9459Szrj #define _BINARY_H 19*a9fa9459Szrj 20*a9fa9459Szrj /* Include this header after <fcntl.h> and <stdio.h>, because 21*a9fa9459Szrj systems that distinguish between text and binary I/O usually 22*a9fa9459Szrj define O_BINARY in <fcntl.h>, and the MSVC7 <stdio.h> doesn't 23*a9fa9459Szrj like to be included after '#define fileno ...' 24*a9fa9459Szrj 25*a9fa9459Szrj We don't include <fcntl.h> here because not all systems have 26*a9fa9459Szrj that header. */ 27*a9fa9459Szrj 28*a9fa9459Szrj #if !defined O_BINARY && defined _O_BINARY 29*a9fa9459Szrj /* For MSC-compatible compilers. */ 30*a9fa9459Szrj # define O_BINARY _O_BINARY 31*a9fa9459Szrj # define O_TEXT _O_TEXT 32*a9fa9459Szrj #endif 33*a9fa9459Szrj #ifdef __BEOS__ 34*a9fa9459Szrj /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */ 35*a9fa9459Szrj # undef O_BINARY 36*a9fa9459Szrj # undef O_TEXT 37*a9fa9459Szrj #endif 38*a9fa9459Szrj #if O_BINARY 39*a9fa9459Szrj # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ 40*a9fa9459Szrj # include <io.h> /* declares setmode() */ 41*a9fa9459Szrj # else 42*a9fa9459Szrj # define setmode _setmode 43*a9fa9459Szrj # undef fileno 44*a9fa9459Szrj # define fileno _fileno 45*a9fa9459Szrj # endif 46*a9fa9459Szrj # ifdef __DJGPP__ 47*a9fa9459Szrj # include <unistd.h> /* declares isatty() */ 48*a9fa9459Szrj # /* Avoid putting stdin/stdout in binary mode if it is connected to the 49*a9fa9459Szrj # console, because that would make it impossible for the user to 50*a9fa9459Szrj # interrupt the program through Ctrl-C or Ctrl-Break. */ 51*a9fa9459Szrj # define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0) 52*a9fa9459Szrj # else 53*a9fa9459Szrj # define SET_BINARY(fd) setmode (fd, O_BINARY) 54*a9fa9459Szrj # endif 55*a9fa9459Szrj #else 56*a9fa9459Szrj /* On reasonable systems, binary I/O is the default. */ 57*a9fa9459Szrj # undef O_BINARY 58*a9fa9459Szrj # define O_BINARY 0 59*a9fa9459Szrj # define SET_BINARY(fd) /* nothing */ 60*a9fa9459Szrj #endif 61*a9fa9459Szrj 62*a9fa9459Szrj #endif /* _BINARY_H */ 63