Update.

2002-08-26  Ulrich Drepper  <drepper@redhat.com>

	* libio/wfileops.c (_IO_wfile_seekoff): Set fp->_offset after
	finding the read position [PR libc/4265].
	* libio/Makefile (tests): Add bug-rewind2.
	* libio/bug-rewind2.c: New file.

1 files changed, 62 insertions, 0 deletions

diff --git a/libio/bug-rewind2.c b/libio/bug-rewind2.c
new file mode 100644
index 0000000000..51b5744330
--- /dev/null
+++ b/libio/bug-rewind2.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <wchar.h>
+
+
+static int fd;
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+
+#define TEST_FUNCTION do_test ()
+static int do_test (void);
+#include "../test-skeleton.c"
+
+
+static void
+prepare (void)
+{
+  fd = create_temp_file ("wrewind2.", NULL);
+  if (fd == -1)
+    exit (3);
+}
+
+
+static int
+do_test (void)
+{
+  wchar_t dummy[10];
+  int ret = 0;
+  FILE *fp;
+  int result = 0;
+
+  fp = fdopen (fd, "w+");
+  if (fp == NULL)
+    {
+      puts ("fopen(""testfile"", ""w+"") returned NULL.");
+      return 1;
+    }
+  else
+    {
+      fwprintf (fp, L"abcd");
+      printf ("current pos = %ld\n", ftell (fp));
+      if (ftell (fp) != 4)
+	result = 1;
+
+      rewind (fp);
+      ret = fwscanf (fp, L"%c", dummy);
+
+      printf ("current pos = %ld\n", ftell (fp));
+      if (ftell (fp) != 1)
+	result = 1;
+
+      rewind (fp);
+      printf ("current pos = %ld\n", ftell (fp));
+      if (ftell (fp) != 0)
+	result = 1;
+
+      fclose (fp);
+    }
+
+  return result;
+}