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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /gnulib-tests/test-yesno.c
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gnulib-tests/test-yesno.c')
-rw-r--r--gnulib-tests/test-yesno.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/gnulib-tests/test-yesno.c b/gnulib-tests/test-yesno.c
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+++ b/gnulib-tests/test-yesno.c
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+/* Test of yesno module.
+ Copyright (C) 2007-2022 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;
+}