Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_file_extended.py: 36%

1###### Coverage stub 

2import atexit 

3import coverage 

4cov = coverage.coverage(data_file='.coverage', cover_pylib=True) 

5cov.start() 

6# Register an exist handler that will print coverage 

7def exit_handler(): 

8 cov.stop() 

9 cov.save() 

10atexit.register(exit_handler) 

11####### End of coverage stub 

12#!/usr/bin/python3 

13 

14# Copyright 2023 Google LLC 

15# 

16# Licensed under the Apache License, Version 2.0 (the "License"); 

17# you may not use this file except in compliance with the License. 

18# You may obtain a copy of the License at 

19# 

20# http://www.apache.org/licenses/LICENSE-2.0 

21# 

22# Unless required by applicable law or agreed to in writing, software 

23# distributed under the License is distributed on an "AS IS" BASIS, 

24# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

25# See the License for the specific language governing permissions and 

26# limitations under the License. 

27# 

28########################################################################## 

29"""Fuzzing arbitrary file loading and arbitrary file operations on the 

30loaded file, in the event of a successful load.""" 

31import sys 

32import atheris 

33import tables 

34 

35 

36def TestOneInput(data): 

37 fdp = atheris.FuzzedDataProvider(data) 

38 fname = '/tmp/fuzzfile.h5' 

39 with open(fname, 'wb') as f: 

40 f.write(fdp.ConsumeBytes(fdp.ConsumeIntInRange(1, 16384))) 

41 try: 

42 table_file = tables.open_file(fname) 

43 except tables.exceptions.HDF5ExtError: 

44 return 

45 

46 try: 

47 table_file.create_group( 

48 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24)), 

49 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24))) 

50 except tables.exceptions.NodeError: 

51 return 

52 

53 table_file.create_path( 

54 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24))) 

55 table_file.create_tabe( 

56 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24)), 

57 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24))) 

58 table_file.create_array( 

59 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24)), 

60 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(2, 24))) 

61 

62 

63def main(): 

64 atheris.instrument_all() 

65 atheris.Setup(sys.argv, TestOneInput) 

66 atheris.Fuzz() 

67 

68 

69if __name__ == "__main__": 

70 main()