[Bug stdio/13822] New: fmemopen cannot handle wide chars

["polacek at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13822

             Bug #: 13822
           Summary: fmemopen cannot handle wide chars
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: stdio
        AssignedTo: unassigned@sourceware.org
        ReportedBy: polacek@redhat.com
    Classification: Unclassified


Created attachment 6271
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6271
Testcase.

Attached testcase segfaults with Fedora 16 glibc and trunk as well.  The
problem is that fgetws_unlocked calls _IO_getwline which is just
return _IO_getwline_info (fp, buf, n, delim, extract_delim, (wint_t *) 0);
however, in _IO_getwline_info is
_IO_ssize_t len = (fp->_wide_data->_IO_read_end
                   - fp->_wide_data->_IO_read_ptr);
whereas
(gdb) p fp->_wide_data
$6 = (struct _IO_wide_data *) 0x0

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