Mercurial > hg
changeset 38248:99ab72b867b7
fuzz: try and generate an interesting mpatch seed from a repo
Differential Revision: https://phab.mercurial-scm.org/D3697
| author | Augie Fackler <augie@google.com> |
|---|---|
| date | Sun, 29 Apr 2018 00:29:40 -0400 |
| parents | 06e2fc08f6f0 |
| children | 1e9c357d3ddf |
| files | contrib/fuzz/mpatch_corpus.py |
| diffstat | 1 files changed, 16 insertions(+), 1 deletions(-) [+] |
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--- a/contrib/fuzz/mpatch_corpus.py Sun Apr 29 00:04:16 2018 -0400 +++ b/contrib/fuzz/mpatch_corpus.py Sun Apr 29 00:29:40 2018 -0400 @@ -1,9 +1,14 @@ -from __future__ import absolute_import +from __future__ import absolute_import, print_function import argparse import struct import zipfile +from mercurial import ( + hg, + ui as uimod, +) + ap = argparse.ArgumentParser() ap.add_argument("out", metavar="some.zip", type=str, nargs=1) args = ap.parse_args() @@ -59,6 +64,16 @@ str(corpus('a', [delta([deltafrag(0, 20, 'b')])])) ) + try: + # Generated from repo data + r = hg.repository(uimod.ui(), '../..') + fl = r.file('mercurial/manifest.py') + rl = getattr(fl, '_revlog', fl) + bins = rl._chunks(rl._deltachain(10)[0]) + zf.writestr('manifest_py_rev_10', + str(corpus(bins[0], bins[1:]))) + except: # skip this, so no re-raises + print('skipping seed file from repo data') # Automatically discovered by running the fuzzer zf.writestr( "mpatch_decode_old_overread", "\x02\x00\x00\x00\x02\x00\x00\x00"