tools/symsrc/img_fingerprint.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 """Retrieves an image's "fingerprint".
   7
   8 This is used when retrieving the image from the symbol server.  The .dll (or cab
   9 compressed .dl_) or .exe is expected at a path like:
  10   foo.dll/FINGERPRINT/foo.dll
  11 """
  12
  13 import sys
  14 import pefile
  15
  16
  17 def GetImgFingerprint(filename):
  18   """Returns the fingerprint for an image file"""
  19   pe = pefile.PE(filename)
  20   return "%08X%06x" % (
  21     pe.FILE_HEADER.TimeDateStamp, pe.OPTIONAL_HEADER.SizeOfImage)
  22
  23
  24 def main():
  25   if len(sys.argv) != 2:
  26     print "usage: file.dll"
  27     return 1
  28
  29   print GetImgFingerprint(sys.argv[1])
  30   return 0
  31
  32
  33 if __name__ == '__main__':
  34   sys.exit(main())