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diff --git glibc-2.17-c758a686/libio/wfileops.c glibc-2.17-c758a686/libio/wfileops.c
index 87d3cdc..877fc1f 100644
--- glibc-2.17-c758a686/libio/wfileops.c
+++ glibc-2.17-c758a686/libio/wfileops.c
@@ -715,7 +715,7 @@ _IO_wfile_seekoff (fp, offset, dir, mode)
- fp->_wide_data->_IO_write_base) / clen;
else
{
- enum __codecvt_result status;
+ enum __codecvt_result status = __codecvt_ok;
delta = (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
const wchar_t *write_base = fp->_wide_data->_IO_write_base;
@@ -728,9 +728,12 @@ _IO_wfile_seekoff (fp, offset, dir, mode)
flush buffers for every ftell. */
do
{
- /* Ugh, no point trying to avoid the flush. Just do it
- and go back to how it was with the read mode. */
- if (delta > 0 && new_write_ptr == fp->_IO_buf_end)
+ /* There is not enough space in the buffer to do the entire
+ conversion, so there is no point trying to avoid the
+ buffer flush. Just do it and go back to how it was with
+ the read mode. */
+ if (status == __codecvt_partial
+ || (delta > 0 && new_write_ptr == fp->_IO_buf_end))
{
if (_IO_switch_to_wget_mode (fp))
return WEOF;