Added decompression script and offsets script

kextractorlib/decompress.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+
+import liblzfse
+
+output_file=input("Path of output file: ")
+file=input("Path of file to decompress: ")
+offset1=input("First offset: ")
+offset2=input("Second offset: ")
+enc = open(file,'rb')
+dec_file = open(output_file,'wb')
+enc.seek(int(offset1))
+enc_file=enc.read(int(offset2))
+try:
+    dec = liblzfse.decompress(enc_file)
+    dec_file.write(dec)
+except liblzfse.error:
+    print('liblzfse had an error!')
+enc.close()
+

kextractorlib/get_bvx_section_offsets.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+
+import sys
+import struct
+
+
+def main():
+	if len(sys.argv) != 2:
+		print >> sys.stderr, "Usage: $0 <decrypted.kernelcache>"
+		sys.exit(1)
+
+with open(sys.argv[1], 'rb') as f:
+	file_to_read = f.read()
+	print("First offset: " + str(file_to_read.find(b'\x62\x76\x78\x32')))
+	print("Second offset: " + str(file_to_read.find(b'\x62\x76\x78\x24')))
+
+if __name__ == "__main__":
+	sys.exit(main())