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# Copyright (C) 2003-2007, 2009-2011 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.
import unittest
import dns.exception
import dns.ipv4
import dns.ipv6
# for convenience
aton4 = dns.ipv4.inet_aton
ntoa4 = dns.ipv4.inet_ntoa
aton6 = dns.ipv6.inet_aton
ntoa6 = dns.ipv6.inet_ntoa
v4_bad_addrs = ['256.1.1.1', '1.1.1', '1.1.1.1.1', '01.1.1.1',
'+1.1.1.1', '1.1.1.1+', '1..2.3.4', '.1.2.3.4',
'1.2.3.4.']
class NtoAAtoNTestCase(unittest.TestCase):
def test_aton1(self):
a = aton6('::')
self.failUnless(a == '\x00' * 16)
def test_aton2(self):
a = aton6('::1')
self.failUnless(a == '\x00' * 15 + '\x01')
def test_aton3(self):
a = aton6('::10.0.0.1')
self.failUnless(a == '\x00' * 12 + '\x0a\x00\x00\x01')
def test_aton4(self):
a = aton6('abcd::dcba')
self.failUnless(a == '\xab\xcd' + '\x00' * 12 + '\xdc\xba')
def test_aton5(self):
a = aton6('1:2:3:4:5:6:7:8')
self.failUnless(a == \
'00010002000300040005000600070008'.decode('hex_codec'))
def test_bad_aton1(self):
def bad():
a = aton6('abcd:dcba')
self.failUnlessRaises(dns.exception.SyntaxError, bad)
def test_bad_aton2(self):
def bad():
a = aton6('abcd::dcba::1')
self.failUnlessRaises(dns.exception.SyntaxError, bad)
def test_bad_aton3(self):
def bad():
a = aton6('1:2:3:4:5:6:7:8:9')
self.failUnlessRaises(dns.exception.SyntaxError, bad)
def test_aton1(self):
a = aton6('::')
self.failUnless(a == '\x00' * 16)
def test_aton2(self):
a = aton6('::1')
self.failUnless(a == '\x00' * 15 + '\x01')
def test_aton3(self):
a = aton6('::10.0.0.1')
self.failUnless(a == '\x00' * 12 + '\x0a\x00\x00\x01')
def test_aton4(self):
a = aton6('abcd::dcba')
self.failUnless(a == '\xab\xcd' + '\x00' * 12 + '\xdc\xba')
def test_ntoa1(self):
b = '00010002000300040005000600070008'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '1:2:3:4:5:6:7:8')
def test_ntoa2(self):
b = '\x00' * 16
t = ntoa6(b)
self.failUnless(t == '::')
def test_ntoa3(self):
b = '\x00' * 15 + '\x01'
t = ntoa6(b)
self.failUnless(t == '::1')
def test_ntoa4(self):
b = '\x80' + '\x00' * 15
t = ntoa6(b)
self.failUnless(t == '8000::')
def test_ntoa5(self):
b = '\x01\xcd' + '\x00' * 12 + '\x03\xef'
t = ntoa6(b)
self.failUnless(t == '1cd::3ef')
def test_ntoa6(self):
b = 'ffff00000000ffff000000000000ffff'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == 'ffff:0:0:ffff::ffff')
def test_ntoa7(self):
b = '00000000ffff000000000000ffffffff'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '0:0:ffff::ffff:ffff')
def test_ntoa8(self):
b = 'ffff0000ffff00000000ffff00000000'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == 'ffff:0:ffff::ffff:0:0')
def test_ntoa9(self):
b = '0000000000000000000000000a000001'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '::10.0.0.1')
def test_ntoa10(self):
b = '0000000000000000000000010a000001'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '::1:a00:1')
def test_ntoa11(self):
b = '00000000000000000000ffff0a000001'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '::ffff:10.0.0.1')
def test_ntoa12(self):
b = '000000000000000000000000ffffffff'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '::255.255.255.255')
def test_ntoa13(self):
b = '00000000000000000000ffffffffffff'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '::ffff:255.255.255.255')
def test_ntoa14(self):
b = '0000000000000000000000000001ffff'.decode('hex_codec')
t = ntoa6(b)
self.failUnless(t == '::0.1.255.255')
def test_bad_ntoa1(self):
def bad():
a = ntoa6('')
self.failUnlessRaises(ValueError, bad)
def test_bad_ntoa2(self):
def bad():
a = ntoa6('\x00' * 17)
self.failUnlessRaises(ValueError, bad)
def test_good_v4_aton(self):
pairs = [('1.2.3.4', '\x01\x02\x03\x04'),
('255.255.255.255', '\xff\xff\xff\xff'),
('0.0.0.0', '\x00\x00\x00\x00')]
for (t, b) in pairs:
b1 = aton4(t)
t1 = ntoa4(b1)
self.failUnless(b1 == b)
self.failUnless(t1 == t)
def test_bad_v4_aton(self):
def make_bad(a):
def bad():
return aton4(a)
return bad
for addr in v4_bad_addrs:
self.failUnlessRaises(dns.exception.SyntaxError, make_bad(addr))
def test_bad_v6_aton(self):
addrs = ['+::0', '0::0::', '::0::', '1:2:3:4:5:6:7:8:9',
':::::::']
embedded = ['::' + x for x in v4_bad_addrs]
addrs.extend(embedded)
def make_bad(a):
def bad():
x = aton6(a)
return bad
for addr in addrs:
self.failUnlessRaises(dns.exception.SyntaxError, make_bad(addr))
def test_rfc5952_section_4_2_2(self):
addr = '2001:db8:0:1:1:1:1:1'
b1 = aton6(addr)
t1 = ntoa6(b1)
self.failUnless(t1 == addr)
if __name__ == '__main__':
unittest.main()
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