1''' 2Some bootloader's support hashing partitions. This is a great feature for testing 3correctness. However, the format for the way the hash is returned depends on the 4implementation. The hash could be send through an INFO response, or be as part 5of the OKAY response itself. This script is called with the first argument 6as the string mesage from the okay response. The second argument is each 7info response joined by newlines into one argument. 8''' 9 10import sys 11 12 13def main(): 14 ''' 15 Data is sent back to the parent fuzzy_fastboot process through the stderr pipe. 16 There are two interpretations of this data by FF. 17 18 0 return code: 19 Anything written to STDERR will be interpreted as part of the hash. 20 21 non-zero return code: 22 Anything written to STDERR is part of the error message that will logged by FF 23 to explain why hash extraction failed. 24 25 Feel free to print to to STDOUT with print() as usual to print info to console 26 ''' 27 script, response, info = sys.argv 28 # the info responses are concated by newlines 29 infos = [s.strip() for s in info.splitlines()] 30 sys.stderr.write(infos[-1]) 31 print("Extracted checksum: '%s'" % infos[-1]) 32 # non-zero return code signals error 33 return 0 34 35 36if __name__ == "__main__": 37 sys.exit(main()) 38