5500924378

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Build # 5500924378

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peace-maker

Commit Message

Update CHANGELOG

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26.92

/pwnlib/encoders/arm/alphanumeric/random_funcs.py

# Copyright (c) 2013 Pratik Kumar Sahu, Nagendra Chowdary, Anish Mathuria
# Ported to Python by Gallopsled
from __future__ import division

import os
import random
import struct


# +------------------------------------------------------------------------+
# |                       RANDOM NUMBERS FUNCTIONS                         |
# +------------------------------------------------------------------------+

# get a random integer i (0<=i<maxv)
# ==================================
def random_get_int(maxv):
   return random.randrange(0, maxv)


def randel(arr):
   return arr[random_get_int(len(arr))]

def enc_data_msn(c, i):
   # c is the lsn to be encoded with a msn
   # lsn = least significant nibble  msn = most significant nibble
   if c <= i:
      if c == 0:
         #Randomly select and return from {5,7}
         return randel([5, 7])
      else:
         #Randomly select and return from {4,5,6,7}
         return randel([4,5,6,7])
   elif c == 0:
      #Randomly select and return from {3,5,7}
      return randel([3,5,7])
   elif c <= 0x0A:
      #Randomly select and return from {3,4,5,6,7}
      #CSE Why doesn't the author use 3 below then?
      return randel([4,5,6,7])
   else:
      return randel([4,6])

1	# Copyright (c) 2013 Pratik Kumar Sahu, Nagendra Chowdary, Anish Mathuria
2	# Ported to Python by Gallopsled
3	from __future__ import division	1✔
4
5	import os	1✔
6	import random	1✔
7	import struct	1✔
8
9
10	# +------------------------------------------------------------------------+
11	# \| RANDOM NUMBERS FUNCTIONS \|
12	# +------------------------------------------------------------------------+
13
14	# get a random integer i (0<=i<maxv)
15	# ==================================
16	def random_get_int(maxv):	1✔
17	return random.randrange(0, maxv)	×
18
19
20	def randel(arr):	1✔
21	return arr[random_get_int(len(arr))]	×
22
23	def enc_data_msn(c, i):	1✔
24	# c is the lsn to be encoded with a msn
25	# lsn = least significant nibble msn = most significant nibble
26	if c <= i:	×
27	if c == 0:	×
28	#Randomly select and return from {5,7}
29	return randel([5, 7])	×
30	else:
31	#Randomly select and return from {4,5,6,7}
32	return randel([4,5,6,7])	×
33	elif c == 0:	×
34	#Randomly select and return from {3,5,7}
35	return randel([3,5,7])	×
36	elif c <= 0x0A:	×
37	#Randomly select and return from {3,4,5,6,7}
38	#CSE Why doesn't the author use 3 below then?
39	return randel([4,5,6,7])	×
40	else:
41	return randel([4,6])	×

Gallopsled / pwntools / 5500924378

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