71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
import sys
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import binascii
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import re
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def bytes_to_uint32_le(bytes):
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return (int(bytes[3], 16) << 24) | (int(bytes[2], 16) << 16) | (int(bytes[1], 16) << 8) | (int(bytes[0], 16) << 0)
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def uint32_to_bytes_le(uint32):
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return [(uint32 >> 0) & 0xff,
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(uint32 >> 8) & 0xff,
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(uint32 >> 16) & 0xff,
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(uint32 >> 24) & 0xff]
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def uint16_to_bytes_le(value):
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return [(value >> 0 & 0xFF),
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(value >> 8 & 0xFF)]
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def zero_pad_array_le(data, padsize):
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for i in range(0, padsize):
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data.insert(0, 0)
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def array_to_hex_string(arr):
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hex_str = ""
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for val in arr:
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if val > 255:
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raise Exception("Value is greater than it is possible to represent with one byte")
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hex_str += "%02x" % val
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return hex_str
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def crc32_unsigned(bytestring):
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return binascii.crc32(bytestring.encode('UTF-8')) % (1 << 32)
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def mac_string_to_uint(mac):
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parts = list(re.match('(..):(..):(..):(..):(..):(..)', mac).groups())
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ints = [int(x, 16) for x in parts]
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res = 0
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for i in range(0, len(ints)):
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res += (ints[len(ints)-1 - i] << 8*i)
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return res
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def uint_to_mac_string(mac):
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ints = [0, 0, 0, 0, 0, 0]
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for i in range(0, len(ints)):
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ints[len(ints)-1 - i] = (mac >> 8*i) & 0xff
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return ':'.join(['{:02x}'.format(x).upper() for x in ints])
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# Print a nice console progress bar
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def print_progress(iteration, total, prefix = '', suffix = '', decimals = 1, barLength = 100):
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"""
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Call in a loop to create terminal progress bar
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@params:
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iteration - Required : current iteration (Int)
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total - Required : total iterations (Int)
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prefix - Optional : prefix string (Str)
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suffix - Optional : suffix string (Str)
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decimals - Optional : positive number of decimals in percent complete (Int)
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barLength - Optional : character length of bar (Int)
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"""
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formatStr = "{0:." + str(decimals) + "f}"
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percents = formatStr.format(100 * (iteration / float(total)))
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filledLength = int(round(barLength * iteration / float(total)))
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bar = 'x' * filledLength + '-' * (barLength - filledLength)
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sys.stdout.write('\r%s |%s| %s%s %s (%d of %d bytes)' % (prefix, bar, percents, '%', suffix, iteration, total)),
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if iteration == total:
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sys.stdout.write('\n')
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sys.stdout.flush()
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