The change reduces the input size on patterns using posix character
classes. It is still better than reverting to the patterns from the
older version, as the upstream data uses posix classes also in the later
versions. The input reduction speeds up the pattern matching in some
cases.
This patch is functionally almost same as upstream, but might show some diff
when the input is very long. While the magic data in the newer versions is
functionally an improvement, with jit=0 it might show a performance regression.
The slowdown is negligible in the normal usage and is still acceptable for the
malicious input. If some functional regressions show up, this patch should be
reverted and the tests timing should be adapted instead.
yet unfinished port to libmagic 5.28
catch with missing libmagic port pieces
regenerate data file with magic from 5.28
test magic files from 5.28
missing files
fix path
pure c99 is still not supported
move right to 5.29, yet some bugs present
more sync with orig lib
more ZMM usage
use unpatched data for now
partial revert according to bug #67705
Revert "more ZMM usage"
This reverts commit 5e3c9b851034b455942b219b18bdc49c8315c3ee.
several fixes, so it's now closer to the clean port
Christoph M. Becker