/usr/lib/python3/dist-packages/dns/util.py is in python3-dnspython 1.12.0-0ubuntu3.
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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 | # Copyright (C) 2011 Nominum, Inc.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose with or without fee is hereby granted,
# provided that the above copyright notice and this permission notice
# appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
"""Miscellaneous Implementation Helpers"""
import struct
def cmp(x, y):
"""The cmp() function from Python 2"""
if x > y:
return 1
elif x < y:
return -1
else:
return 0
def write_uint8(bfile, value):
"""Write an unsigned 8-bit integer to an io.BytesIO file
"""
bfile.write(struct.pack('B', value))
def write_uint16(bfile, value):
"""Write an unsigned 16-bit integer to an io.BytesIO file
"""
bfile.write(struct.pack('!H', value))
def write_uint32(bfile, value):
"""Write an unsigned 32-bit integer to an io.BytesIO file
"""
bfile.write(struct.pack('!L', value))
def write_uint64(bfile, value):
"""Write an unsigned 64-bit integer to an io.BytesIO file
"""
bfile.write(struct.pack('!Q', value))
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