|
| 1 | +importsys |
| 2 | +importos |
| 3 | +importio |
| 4 | +importtempfile |
| 5 | +frombinasciiimportErrorasBinasciiError |
| 6 | + |
| 7 | +importatheris |
| 8 | + |
| 9 | +ifgetattr(sys,"frozen",False)andhasattr(sys,"_MEIPASS"): |
| 10 | +path_to_bundled_git_binary=os.path.abspath(os.path.join(os.path.dirname(__file__),"git")) |
| 11 | +os.environ["GIT_PYTHON_GIT_EXECUTABLE"]=path_to_bundled_git_binary |
| 12 | + |
| 13 | +withatheris.instrument_imports(): |
| 14 | +fromgitimportRepo,Diff |
| 15 | + |
| 16 | + |
| 17 | +classBytesProcessAdapter: |
| 18 | +"""Allows bytes to be used as process objects returned by subprocess.Popen.""" |
| 19 | + |
| 20 | +def__init__(self,input_string): |
| 21 | +self.stdout=io.BytesIO(input_string) |
| 22 | +self.stderr=io.BytesIO() |
| 23 | + |
| 24 | +defwait(self): |
| 25 | +return0 |
| 26 | + |
| 27 | +poll=wait |
| 28 | + |
| 29 | + |
| 30 | +defTestOneInput(data): |
| 31 | +fdp=atheris.FuzzedDataProvider(data) |
| 32 | + |
| 33 | +withtempfile.TemporaryDirectory()astemp_dir: |
| 34 | +repo=Repo.init(path=temp_dir) |
| 35 | +try: |
| 36 | +diff=Diff( |
| 37 | +repo, |
| 38 | +a_rawpath=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 39 | +b_rawpath=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 40 | +a_blob_id=fdp.ConsumeBytes(20), |
| 41 | +b_blob_id=fdp.ConsumeBytes(20), |
| 42 | +a_mode=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 43 | +b_mode=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 44 | +new_file=fdp.ConsumeBool(), |
| 45 | +deleted_file=fdp.ConsumeBool(), |
| 46 | +copied_file=fdp.ConsumeBool(), |
| 47 | +raw_rename_from=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 48 | +raw_rename_to=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 49 | +diff=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())), |
| 50 | +change_type=fdp.PickValueInList(["A","D","C","M","R","T","U"]), |
| 51 | +score=fdp.ConsumeIntInRange(0,fdp.remaining_bytes()), |
| 52 | + ) |
| 53 | +exceptBinasciiError: |
| 54 | +return-1 |
| 55 | +exceptAssertionErrorase: |
| 56 | +if"Require 20 byte binary sha, got"instr(e): |
| 57 | +return-1 |
| 58 | +else: |
| 59 | +raisee |
| 60 | + |
| 61 | +_=diff.__str__() |
| 62 | +_=diff.a_path |
| 63 | +_=diff.b_path |
| 64 | +_=diff.rename_from |
| 65 | +_=diff.rename_to |
| 66 | +_=diff.renamed_file |
| 67 | + |
| 68 | +diff_index=diff._index_from_patch_format( |
| 69 | +repo,proc=BytesProcessAdapter(fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes()))) |
| 70 | + ) |
| 71 | + |
| 72 | +diff._handle_diff_line( |
| 73 | +lines_bytes=fdp.ConsumeBytes(fdp.ConsumeIntInRange(0,fdp.remaining_bytes())),repo=repo,index=diff_index |
| 74 | + ) |
| 75 | + |
| 76 | + |
| 77 | +defmain(): |
| 78 | +atheris.Setup(sys.argv,TestOneInput) |
| 79 | +atheris.Fuzz() |
| 80 | + |
| 81 | + |
| 82 | +if__name__=="__main__": |
| 83 | +main() |