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-rw-r--r--gnulib-tests/test-closein.c49
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diff --git a/gnulib-tests/test-closein.c b/gnulib-tests/test-closein.c
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+/* Test of closein 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/>. */
+
+/* Written by Eric Blake. */
+
+#include <config.h>
+
+#include "closein.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "binary-io.h"
+#include "ignore-value.h"
+
+/* With no arguments, do nothing. With arguments, attempt to consume
+ first 6 bytes of stdin. In either case, let exit() take care of
+ closing std streams and changing exit status if ferror(stdin). */
+int
+main (int argc, char **argv)
+{
+ char buf[7];
+ atexit (close_stdin);
+
+ /* close_stdin currently relies on ftell, but mingw ftell is
+ unreliable on text mode input. */
+ set_binary_mode (0, O_BINARY);
+
+ if (argc > 2)
+ close (0);
+
+ if (argc > 1)
+ ignore_value (fread (buf, 1, 6, stdin));
+ return 0;
+}