makefs with -t cd9660 -o rockridge against directories with
deep structure creates a corrupted cd9660 image.
http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=44114
Fix NetBSD PR bin/45217:
makefs creates ISO9660 images that violate the ECMA-119 (ISO9660)
specification. This is caused by erroneously writing 32 bytes
with value 0x20 to the volume_set_id field and 128 bytes with value 0x20
to the the following 37-byte fields in the PVD:
copyright_file_id, abstract_file_id, bibliographic_file_id
This causes, among other unwanted results the reserved4 field to be
overwritten with the value 0x20. To comply with the specification,
this field muse be zero. As a result, all FreeBSD distribution
images created with makefs have not been 100% valid ISO9660 files.
http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=45217
Reviewed by: kientzle
Approved by: re (kib)
Obtained from: NetBSD
MFC after: 3 days
51db4bad81