LCOV - code coverage report
Current view: top level - gltests - binary-io.h (source / functions) Hit Total Coverage
Test: GNU Libidn Lines: 2 2 100.0 %
Date: 2015-03-02 11:46:03 Functions: 1 1 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* Binary mode I/O.
       2             :    Copyright (C) 2001, 2003, 2005, 2008-2015 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 guaranteed by the gnulib <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             : #ifndef _GL_INLINE_HEADER_BEGIN
      29             :  #error "Please include config.h first."
      30             : #endif
      31             : _GL_INLINE_HEADER_BEGIN
      32             : #ifndef BINARY_IO_INLINE
      33             : # define BINARY_IO_INLINE _GL_INLINE
      34             : #endif
      35             : 
      36             : /* set_binary_mode (fd, mode)
      37             :    sets the binary/text I/O mode of file descriptor fd to the given mode
      38             :    (must be O_BINARY or O_TEXT) and returns the previous mode.  */
      39             : #if O_BINARY
      40             : # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
      41             : #  include <io.h> /* declares setmode() */
      42             : #  define set_binary_mode setmode
      43             : # else
      44             : #  define set_binary_mode _setmode
      45             : #  undef fileno
      46             : #  define fileno _fileno
      47             : # endif
      48             : #else
      49             :   /* On reasonable systems, binary I/O is the only choice.  */
      50             :   /* Use a function rather than a macro, to avoid gcc warnings
      51             :      "warning: statement with no effect".  */
      52             : BINARY_IO_INLINE int
      53           2 : set_binary_mode (int fd, int mode)
      54             : {
      55             :   (void) fd;
      56             :   (void) mode;
      57           2 :   return O_BINARY;
      58             : }
      59             : #endif
      60             : 
      61             : /* SET_BINARY (fd);
      62             :    changes the file descriptor fd to perform binary I/O.  */
      63             : #ifdef __DJGPP__
      64             : # include <unistd.h> /* declares isatty() */
      65             :   /* Avoid putting stdin/stdout in binary mode if it is connected to
      66             :      the console, because that would make it impossible for the user
      67             :      to interrupt the program through Ctrl-C or Ctrl-Break.  */
      68             : # define SET_BINARY(fd) ((void) (!isatty (fd) ? (set_binary_mode (fd, O_BINARY), 0) : 0))
      69             : #else
      70             : # define SET_BINARY(fd) ((void) set_binary_mode (fd, O_BINARY))
      71             : #endif
      72             : 
      73             : _GL_INLINE_HEADER_END
      74             : 
      75             : #endif /* _BINARY_H */

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