mirror of
https://github.com/fail0verflow/hbc.git
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60 lines
1.4 KiB
Python
60 lines
1.4 KiB
Python
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#!/usr/bin/env python
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import sys, os, os.path
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import pywii as wii
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wii.loadkeys()
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def parseint(d):
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if len(d) > 2 and d[0:2].lower()=='0x':
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return int(d,16)
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return int(d)
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if len(sys.argv) < 4 or len(sys.argv) > 7:
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print "Usage:"
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print " python %s <encrypted ISO> <partition number> <file to extract to> [Partition offset] [length]"%sys.argv[0]
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sys.exit(1)
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iso_name, partno, data_name = sys.argv[1:4]
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partno = int(partno)
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part_offset = 0
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data_offset = 0
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copy_length = None
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if len(sys.argv) >= 5:
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part_offset = parseint(sys.argv[4])
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if len(sys.argv) == 6:
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copy_length = parseint(sys.argv[5])
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if copy_length is not None and copy_length < 0:
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print "Error: negative copy length"
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sys.exit(1)
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disc = wii.WiiDisc(iso_name)
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disc.showinfo()
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part = wii.WiiCachedPartition(disc, partno, cachesize=32, debug=False, checkhash=False)
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if part_offset >= part.data_bytes:
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print "Error: Offset past end of partition"
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sys.exit(1)
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if copy_length is None:
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copy_length = part.data_bytes - part_offset
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if copy_length > (part.data_bytes - part_offset):
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print "Error: Length too large"
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sys.exit(1)
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dataf = open(data_name, "wb")
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left = copy_length
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offset = part_offset
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while left > 0:
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blocklen = min(left, 4*1024*1024)
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d = part.read(offset, blocklen)
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if len(d) != blocklen:
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print "Part EOF reached!"
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sys.exit(1)
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dataf.write(d)
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offset += blocklen
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left -= blocklen
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dataf.close()
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