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-rw-r--r--REORG.TODO/stdio-common/tst-put-error.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/tst-put-error.c b/REORG.TODO/stdio-common/tst-put-error.c
new file mode 100644
index 0000000000..4f91fb7471
--- /dev/null
+++ b/REORG.TODO/stdio-common/tst-put-error.c
@@ -0,0 +1,69 @@
+/* Verify that print functions return error when there is an I/O error.
+
+   Copyright (C) 2005-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <error.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+static int
+do_test (void)
+{
+  char tmpl[] = "/tmp/tst-put-error.XXXXXX";
+  int fd = mkstemp (tmpl);
+  if (fd == -1)
+    error (EXIT_FAILURE, errno, "cannot create temporary file");
+  FILE *fp = fdopen (fd, "w");
+  if (fp == NULL)
+    error (EXIT_FAILURE, errno, "fdopen");
+
+  /* All of the tests below verify that flushing buffers result in failure of
+     the fprintf calls.  We ensure that the buffer is flushed at the end of
+     each fprintf call by doing two things - setting the file pointer to
+     line-buffered so that it is flushed whenever it encounters a newline and
+     then ensuring that there is a newline in each of the format strings we
+     pass to fprintf.  */
+
+  setlinebuf (fp);
+  close (fd);
+  unlink (tmpl);
+
+  int n = fprintf (fp, "hello world\n");
+  printf ("fprintf = %d\n", n);
+  if (n >= 0)
+    error (EXIT_FAILURE, 0, "first fprintf succeeded");
+
+  n = fprintf (fp, "hello world\n");
+  printf ("fprintf = %d\n", n);
+  if (n >= 0)
+    error (EXIT_FAILURE, 0, "second fprintf succeeded");
+
+  /* Padded printing takes a different code path.  */
+  n = fprintf (fp, "%100s\n", "foo");
+  printf ("fprintf = %d\n", n);
+  if (n >= 0)
+    error (EXIT_FAILURE, 0, "padded fprintf succeeded");
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"