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[helper] Run with .options. #65

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[helper] Run with .options. #65

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35 changes: 31 additions & 4 deletions infra/helper.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@

from __future__ import print_function
import argparse
from ConfigParser import ConfigParser
import os
import pipes
import re
Expand All @@ -29,6 +30,7 @@

OSSFUZZ_DIR = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
BUILD_DIR = os.path.join(OSSFUZZ_DIR, 'build')
TARGETS_DIR = os.path.join(OSSFUZZ_DIR, 'targets')


def main():
Expand Down Expand Up @@ -93,6 +95,29 @@ def _get_version_control_url(target_name):
return None, None


def _get_fuzzer_options(target_name, fuzzer_name):
"""Get fuzzer options if exists."""
fuzzer_directory = os.path.join(TARGETS_DIR, target_name)
options_file_path = os.path.join(fuzzer_directory, fuzzer_name + '.options')
if not os.path.isfile(options_file_path):
return []

config = ConfigParser()
config.read(options_file_path)

if not config.has_section('libfuzzer'):
return []

options = []
for key, value in config.items('libfuzzer'):
if key == 'dict':
value = os.path.join('/out', value)

options.append('-%s=%s' % (key, value))

return options


def build_image(build_args):
"""Build docker image."""
parser = argparse.ArgumentParser('helper.py build_image')
Expand All @@ -104,7 +129,7 @@ def build_image(build_args):

command = [
'docker', 'build', '--pull', '-t', 'ossfuzz/' + args.target_name,
os.path.join("targets", args.target_name)
os.path.join('targets', args.target_name)
]
print('Running:', _get_command_string(command))

Expand Down Expand Up @@ -162,17 +187,19 @@ def run_fuzzer(run_args):
file=sys.stderr)
return 1

fuzzer_options = _get_fuzzer_options(args.target_name, args.fuzzer_name)
command = [
'docker', 'run', '-i',
'-v', '%s:/out' % os.path.join(BUILD_DIR, 'out'),
'-v', '%s:/out' % os.path.join(BUILD_DIR, 'out', args.target_name),
'-t', 'ossfuzz/libfuzzer-runner',
'/out/%s/%s' %(args.target_name, args.fuzzer_name)
] + args.fuzzer_args
'/out/%s' % args.fuzzer_name
] + args.fuzzer_args + fuzzer_options

print('Running:', _get_command_string(command))
pipe = subprocess.Popen(command)
pipe.communicate()


def coverage(run_args):
"""Runs a fuzzer in the container."""
parser = argparse.ArgumentParser('helper.py coverage')
Expand Down