/usr/lib/python3/dist-packages/potr/utils.py is in python3-potr 1.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | # Copyright 2012 Kjell Braden <afflux@pentabarf.de>
#
# This file is part of the python-potr library.
#
# python-potr is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# any later version.
#
# python-potr is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
# some python3 compatibilty
from __future__ import unicode_literals
import struct
def pack_mpi(n):
return pack_data(long_to_bytes(n))
def read_mpi(data):
n, data = read_data(data)
return bytes_to_long(n), data
def pack_data(data):
return struct.pack(b'!I', len(data)) + data
def read_data(data):
datalen, data = unpack(b'!I', data)
return data[:datalen], data[datalen:]
def unpack(fmt, buf):
s = struct.Struct(fmt)
return s.unpack(buf[:s.size]) + (buf[s.size:],)
def bytes_to_long(b):
l = len(b)
s = 0
for i in range(l):
s += byte_to_long(b[i:i+1]) << 8*(l-i-1)
return s
def long_to_bytes(l, n=0):
b = b''
while l != 0 or n > 0:
b = long_to_byte(l & 0xff) + b
l >>= 8
n -= 1
return b
def byte_to_long(b):
return struct.unpack(b'B', b)[0]
def long_to_byte(l):
return struct.pack(b'B', l)
def human_hash(fp):
fp = fp.upper()
fplen = len(fp)
wordsize = fplen//5
buf = ''
for w in range(0, fplen, wordsize):
buf += '{0} '.format(fp[w:w+wordsize])
return buf.rstrip()
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