## reading a 2GB bitstream file, already read in as f via chunking method.
## wpextract.log is a listing of the file header offset locations within the bitstream file
## wpfilesize.log is a listing of filesizes obtained from a struct.unpack method.

## Trying to create and write to a sequential list of files "on the fly" and extract data blocks that constitute WordPerfect files

## the out_block data is not being written to the series of empty .wp files, once created. Idle just hangs.



g = open("images\\wpextract.log", "r")  # reads header position file
header_pos = g.readlines()
h = open("images\\wpfilesize.log", "r") # reads in the list of file sizes for application in carve interation
filesize_len = h.readlines()

n=70 ##arbitrary figure - roughly 64 files, in truth
for i in range(n):
    open('wpdocs\\file' + str(i) + '.wp', 'wb').close()
    
root = "wpdocs"

while f:
    for header in header_pos:
        f.seek(int(header), 0)
        for carved in filesize_len:
            out_block = f.read(int(carved))

            while out_block:
                listing = os.listdir(root)
                out_block = f.read(int(carved))
                for each_file in listing:
                    path = os.path.join(root,each_file)
                    doc_wp = open('path', 'wb')
                    
                    doc_wp.write("%s" % (out_block))