K 10
svn:author
V 8
kientzle
K 8
svn:date
V 27
2009-09-08T05:02:41.967724Z
K 7
svn:log
V 427
Fiz /usr/bin/unzip: A bug deep in libarchive's read-ahead logic
(incorrect handling of zero-length reads before the copy buffer is
allocated) is masked by the iso9660 taster.  Tar and cpio both enable
that taster so were protected from the bug; unzip is susceptible.

This both fixes the bug and updates the test harness to exercise
this case.

Submitted by: Ed Schouten diagnosed the bug and drafted a patch
MFC after: 7 days

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