Adding python script lzss.py which allows to encode/decode binary files via LZSS

Author: aentinger

Diff for: extras/tools/lzss.py

@@ -0,0 +1,28 @@
+#!/usr/bin/python3
+
+import sys
+import ctypes
+
+LZSS_SO_FILE = "./lzss.so"
+
+if len(sys.argv) != 4:
+    print ("Usage: lzss.py --[encode|decode] sketch.bin sketch.lzss")
+    sys.exit()
+
+lzss_functions = ctypes.CDLL(LZSS_SO_FILE)
+
+mode   = sys.argv[1]
+ifile  = sys.argv[2]
+ofile  = sys.argv[3]
+
+b_ifile = ifile.encode('utf-8')
+b_ofile = ofile.encode('utf-8')
+
+if mode == "--encode":
+    lzss_functions.encode_file.argtypes = [ctypes.c_char_p, ctypes.c_char_p]
+    lzss_functions.encode_file(b_ifile, b_ofile)
+elif mode == "--decode":
+    lzss_functions.decode_file.argtypes = [ctypes.c_char_p, ctypes.c_char_p]
+    lzss_functions.decode_file(b_ifile, b_ofile)
+else:
+    print ("Error, invalid mode parameter, use --encode or --decode")