Apple-2-Tools/Driv3rs
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Expanded the function to do text unpack, too.

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This commit is contained in:
ultramagnus_tcv 2015-09-27 18:57:08 -05:00
parent 308ffd970c
commit 17c9a702ff
1 changed files with 15 additions and 9 deletions
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24
3Slurp.py
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@ -1,10 +1,15 @@
from struct import unpack
import os
def readUnpackAndint(bytes):
SOS = SOSfile.read(bytes)
offset_unpacked = unpack ('< H', SOS)
return int('.'.join(str(x) for x in offset_unpacked))
def readUnpack(bytes, **options):
if options.get("type") == 't':
SOS = SOSfile.read(bytes)
return unpack('< 8s', SOS)
if options.get("type") == 'b':
SOS = SOSfile.read(bytes)
offset_unpacked = unpack ('< H', SOS)
return int('.'.join(str(x) for x in offset_unpacked))
#Clear SCREEN
print("\033c");
@ -12,8 +17,9 @@ print("\033c");
#Is File a SOS DRIVER file?
SOSfile = open('SOSCFFA.DRIVER', 'rb')
SOS = SOSfile.read(8)
filetype = unpack('< 8s', SOS)
#SOS = SOSfile.read(8)
#filetype = unpack('< 8s', SOS)
filetype = readUnpack(8, type = 't')
if 'SOS DRVR' in filetype:
print "This is a proper SOS file."
@ -26,7 +32,7 @@ else:
### find the first actual driver.
# Read immediate two bytes after SOS DRVR to establish first offset value.
offset = readUnpackAndint(2)
offset = readUnpack(2, type = 'b')
print "The first offset value is", hex(offset)
drivers = 0 ## This is to keep a running total of drivers.
drivers_dict = dict() ## Intialize a dictionary to hold the drivers.
@ -37,10 +43,10 @@ drivers_dict = dict() ## Intialize a dictionary to hold the drivers.
while offset != 65535 :
SOSfile.seek(offset,1)
## print "DEBUG: This is our new position in the file: ", hex(SOSfile.tell())
offset = readUnpackAndint(2)
offset = readUnpack(2, type = 'b')
if offset == 0 : ## Check to see if we're at the beginning of a new driver.
drivers = drivers + 1 ## And add to count of found drivers.
offset = readUnpackAndint(2)
offset = readUnpack(2, type = 'b')
drivers_dict ['Driver_'+str(drivers)] = dict([('Offset', hex(offset))])
## print 'DEBUG: New offset is: ' , hex(offset)