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Differential D7600

fuzz: add a seed corpus for the dirs fuzzer
ClosedPublic

Authored by durin42 on Dec 10 2019, 7:11 PM.

Details

Reviewers
pulkit
Group Reviewers
hg-reviewers
Commits
rHGb7af8a02a304: fuzz: add a seed corpus for the dirs fuzzer
Summary

I was hoping to trigger an asan violation under Python 3 that some internal
tests at Google found, but for some reason that's beyond me I can't seem to
manage.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

durin42 created this revision.Dec 10 2019, 7:11 PM
pulkit accepted this revision.Dec 11 2019, 6:06 AM
This revision is now accepted and ready to land.Dec 11 2019, 6:06 AM
durin42 added a commit: rHGb7af8a02a304: fuzz: add a seed corpus for the dirs fuzzer.Dec 11 2019, 6:55 AM
Closed by commit rHGb7af8a02a304: fuzz: add a seed corpus for the dirs fuzzer (authored by durin42). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mcontrib/fuzz/Makefile (2 lines)
AMcontrib/fuzz/dirs_corpus.py (29 lines)

Diff 18608

contrib/fuzz/Makefile

$(LIB_FUZZING_ENGINE) -o $$OUT/xdiff_fuzzer $(LIB_FUZZING_ENGINE) -o $$OUT/xdiff_fuzzer
parsers-%.o: ../../mercurial/cext/%.c parsers-%.o: ../../mercurial/cext/%.c
$(CC) -I../../mercurial `$(PYTHON_CONFIG) --cflags` $(CFLAGS) -c \ $(CC) -I../../mercurial `$(PYTHON_CONFIG) --cflags` $(CFLAGS) -c \
-o $@ $< -o $@ $<
PARSERS_OBJS=parsers-manifest.o parsers-charencode.o parsers-parsers.o parsers-dirs.o parsers-pathencode.o parsers-revlog.o PARSERS_OBJS=parsers-manifest.o parsers-charencode.o parsers-parsers.o parsers-dirs.o parsers-pathencode.o parsers-revlog.o
dirs_fuzzer: dirs.cc pyutil.o $(PARSERS_OBJS) dirs_fuzzer: dirs.cc pyutil.o $(PARSERS_OBJS) $$OUT/dirs_fuzzer_seed_corpus.zip
$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \ $(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
-Wno-register -Wno-macro-redefined \ -Wno-register -Wno-macro-redefined \
-I../../mercurial dirs.cc \ -I../../mercurial dirs.cc \
pyutil.o $(PARSERS_OBJS) \ pyutil.o $(PARSERS_OBJS) \
$(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) --ldflags` \ $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) --ldflags` \
-o $$OUT/dirs_fuzzer -o $$OUT/dirs_fuzzer
fncache_fuzzer: fncache.cc fncache_fuzzer: fncache.cc

contrib/fuzz/dirs_corpus.py

  • This file was added.
from __future__ import absolute_import, print_function
import argparse
import zipfile
ap = argparse.ArgumentParser()
ap.add_argument("out", metavar="some.zip", type=str, nargs=1)
args = ap.parse_args()
with zipfile.ZipFile(args.out[0], "w", zipfile.ZIP_STORED) as zf:
zf.writestr(
"greek-tree",
"\n".join(
[
"iota",
"A/mu",
"A/B/lambda",
"A/B/E/alpha",
"A/B/E/beta",
"A/D/gamma",
"A/D/G/pi",
"A/D/G/rho",
"A/D/G/tau",
"A/D/H/chi",
"A/D/H/omega",
"A/D/H/psi",
]
),
)