[pdf-devel] Bug in pdf_stm_flush()

[Łukasz Spintzyk]

There is a bug in function pdf_stm_flush() in file pdf-stm.c at line 327.
It is produced when beckend is full or not all cache is written to beckend.

327:      cache_size = stm->cache->wp - stm->cache->rp;
328:      written_bytes = pdf_stm_be_write (stm->backend,
                                       stm->cache->data + stm->cache->rp,
                                       cache_size);

332:      /* Rewind the cache */
           pdf_buffer_rewind (stm->cache);

In line 332 stream cache is erased, so cache_size-written_bytes is lost.