Tool to (re)configure the sysmoUSIM and sysmoISIM cards
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
A collection of useful routines to make this tool work
(C) 2017 by Sysmocom s.f.m.c. GmbH
All Rights Reserved
Author: Philipp Maier
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
# Convert list to an printable ascii hex string
def hexdump(array):
if array:
return ''.join('{:02x}'.format(x) for x in array)
else:
return "(no data)"
# Convert ascii string with decimal numbers to numeric ascii-code list
def ascii_to_list(string):
rc = []
for c in string:
rc.append(ord(c))
return rc
# Convert an ascii hex string to numeric list
def asciihex_to_list(string):
string = string.translate(None, ':')
try:
return map(ord, string.decode("hex"))
except:
print "Warning: Invalid hex string -- ignored!"
return []
# Pad an ascihex string with a nibble in case it is "incomplete"
def pad_asciihex(string, padding='f'):
if len(string) % 2 != 0:
return string + padding
return string
# Swap nibbles of each byte in an array
def swap_nibbles(array):
rc = []
for a in array:
rc.append(((a & 0xf0) >> 4) | ((a & 0x0f) << 4))
return rc