68 lines
1.6 KiB
Python
68 lines
1.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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A collection of useful routines to make this tool work
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(C) 2017 by Sysmocom s.f.m.c. GmbH
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All Rights Reserved
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Author: Philipp Maier
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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# Convert list to an printable ascii hex string
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def hexdump(array):
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if array:
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return ''.join('{:02x}'.format(x) for x in array)
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else:
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return "(no data)"
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# Convert ascii string with decimal numbers to numeric ascii-code list
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def ascii_to_list(string):
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rc = []
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for c in string:
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rc.append(ord(c))
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return rc
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# Convert an ascii hex string to numeric list
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def asciihex_to_list(string):
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string = string.translate(None, ':')
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try:
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return map(ord, string.decode("hex"))
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except:
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print "Warning: Invalid hex string -- ignored!"
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return []
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# Pad an ascihex string with a nibble in case it is "incomplete"
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def pad_asciihex(string, padding='f'):
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if len(string) % 2 != 0:
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return string + padding
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return string
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# Swap nibbles of each byte in an array
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def swap_nibbles(array):
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rc = []
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for a in array:
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rc.append(((a & 0xf0) >> 4) | ((a & 0x0f) << 4))
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return rc
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