moved and modified some existing pyton scripts for testing

client/pyscripts/findbits.py

@@ -0,0 +1,99 @@
+#!/usr/bin/env python3
+
+#  findbits.py - find Binary, Octal, Decimal or Hex number in bitstream
+#
+#  Adam Laurie <adam@algroup.co.uk>
+#  http://rfidiot.org/
+#
+#  This code is copyright (c) Adam Laurie, 2009, All rights reserved.
+#  For non-commercial use only, the following terms apply - for all other
+#  uses, please contact the author:
+#
+#    This code is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This code is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+
+import sys
+import os
+
+# invert binary string
+def invert(data):
+    return ''.join('0' if c == '1' else '1' for c in data)
+
+# do the actual search
+def search(target,data):
+    location = data.find(target)
+    if location >= 0:
+        print('*** Match at bit {:d}: {}<{}>{}'.format(location, data[:location],target,data[location+len(target):]))
+    else:
+        print('Not found')
+
+# convert integer to binary string
+def binstring(number):
+    return bin(number)[2:] if number > 0 else ''
+
+# reverse string order
+def stringreverse(data):
+    return data[::-1]
+
+# match forward, backward and inverted
+def domatch(binary,number):
+    reversed= stringreverse(number)
+    inverted= invert(binary)
+
+    print('  Forward: (%s) ' % number, end = '')
+    search(binary,number)
+    print('  Reverse: (%s) ' % reversed, end = '')
+    search(binary,reversed)
+    print('  Inverse: (%s) ' % inverted)
+    print('    Forward: (%s) ' % number, end = '')
+    search(inverted,number)
+    print('    Reverse: (%s) ' % reversed, end = '')
+    search(inverted,reversed)
+
+def main():
+    if(len(sys.argv) < 3):
+        print("""
+\t{0} - Search bitstream for a known number
+
+Usage: {0} <NUMBER> <BITSTREAM>
+
+\tNUMBER will be converted to it\'s BINARY equivalent for all valid
+\tinstances of BINARY, OCTAL, DECIMAL and HEX, and the bitstream
+\tand it\'s inverse will be searched for a pattern match. Note that
+\tNUMBER must be specified in BINARY to match leading zeros.
+
+Example:
+
+\t{0} 73 0110010101110011
+""".format(sys.argv[0]))
+        os._exit(True)
+
+    bases=    {
+        2:'BINARY',
+        8:'OCTAL',
+        10:'DECIMAL',
+        16:'HEX',
+            }
+
+    for base, base_name in sorted(bases.items()):
+        try:
+            number= int(sys.argv[1],base)
+            print('\nTrying ' + base_name)
+            # do BINARY as specified to preserve leading zeros
+            if base == 2:
+                domatch(sys.argv[1],sys.argv[2])
+            else:
+                domatch(binstring(number),sys.argv[2])
+        except:
+            continue
+
+if __name__ == '__main__':
+    main()