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/* Test of yesno module.
Copyright (C) 2007-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
/* Specification. */
#include "yesno.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "closein.h"
#include "binary-io.h"
/* Test yesno. Without arguments, read one line. If first argument
is zero, close stdin before attempting to read one line.
Otherwise, read the number of lines specified by first
argument. */
int
main (int argc, char **argv)
{
int i = 1;
/* yesno recommends that all clients use close_stdin in main. */
atexit (close_stdin);
/* But on mingw, close_stdin leaves stdin's file descriptor at the expected
position (i.e. where this program left off reading) only if its mode has
been set to O_BINARY. If it has been set to O_TEXT, and the file
descriptor is seekable, and stdin is buffered, the MSVCRT runtime ends up
setting the file descriptor's position to the expected position _minus_
the number of LFs not preceded by CR that were read between the expected
position and the last filled buffer end position. (I.e. the repositioning
from the end-of-buffer to the expected position does not work if the input
file contains end-of-line markers in Unix convention.) */
set_binary_mode (0, O_BINARY);
if (1 < argc)
i = atoi (argv[1]);
if (!i)
{
i = 1;
close (0);
}
while (i--)
puts (yesno () ? "Y" : "N");
return 0;
}
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