On Monday, April 23, 2018 at 11:01:39 PM UTC+5:30, Chris Angelico wrote:
> On Tue, Apr 24, 2018 at 3:24 AM, Hac4u <samakshkaus...@gmail.com> wrote:
> > I have a raw data of size nearly 10GB. I would like to find a text string
> > and print the memory address at which it is stored.
> >
> > This is my code
> >
> > import os
> > import re
> > filename="filename.dmp"
> > read_data=2**24
> > searchtext="bd:mongo:"
> > he=searchtext.encode('hex')
>
> Why encode it as hex?
>
> > with open(filename, 'rb') as f:
> > while True:
> > data= f.read(read_data)
> > if not data:
> > break
> > elif searchtext in data:
> > print "Found"
> > try:
> > offset=hex(data.index(searchtext))
> > print offset
> > except ValueError:
> > print 'Not Found'
> > else:
> > continue
>
> You have a loop that reads a slab of data from a file, then searches
> the current data only. Then you search that again for the actual
> index, and print it - but you're printing the offset within the
> current chunk only. You'll need to maintain a chunk position in order
> to get the actual offset.
>
> Also, you're not going to find this if it spans across a chunk
> boundary. May need to cope with that.
>
> ChrisA
I was encoding to try something.You can ignore that line..
Yea i was not maitaing the chunk position..Can u help me out with any link..I
am out of ideas and this is my first time dealing with memory codes.
Regards
Samaksh
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