While trying to track down some crashes in kino, I found the following problems
with libraw1394:
* There is a DIR* leak in raw1394_set_port().
* Lots of data structures are not fully initialized when calling IEEE1394
ioctl()s. These cause valgrind errors (benign, as valgrind does not know
how to interpret all ioctls. However these also cause kino to crash in
libraw1394. I've added a bunch of memset()s to prevent this problem from
happening.
Forward-ported to libraw1394 git tree by Jarod Wilson.