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Diffstat (limited to 'third_party/dnspython/dns/rdtypes/ANY/NSEC.py')
-rw-r--r--third_party/dnspython/dns/rdtypes/ANY/NSEC.py128
1 files changed, 0 insertions, 128 deletions
diff --git a/third_party/dnspython/dns/rdtypes/ANY/NSEC.py b/third_party/dnspython/dns/rdtypes/ANY/NSEC.py
deleted file mode 100644
index ad113a4b59d..00000000000
--- a/third_party/dnspython/dns/rdtypes/ANY/NSEC.py
+++ /dev/null
@@ -1,128 +0,0 @@
-# Copyright (C) 2004-2007, 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 cStringIO
-
-import dns.exception
-import dns.rdata
-import dns.rdatatype
-import dns.name
-
-class NSEC(dns.rdata.Rdata):
- """NSEC record
-
- @ivar next: the next name
- @type next: dns.name.Name object
- @ivar windows: the windowed bitmap list
- @type windows: list of (window number, string) tuples"""
-
- __slots__ = ['next', 'windows']
-
- def __init__(self, rdclass, rdtype, next, windows):
- super(NSEC, self).__init__(rdclass, rdtype)
- self.next = next
- self.windows = windows
-
- def to_text(self, origin=None, relativize=True, **kw):
- next = self.next.choose_relativity(origin, relativize)
- text = ''
- for (window, bitmap) in self.windows:
- bits = []
- for i in xrange(0, len(bitmap)):
- byte = ord(bitmap[i])
- for j in xrange(0, 8):
- if byte & (0x80 >> j):
- bits.append(dns.rdatatype.to_text(window * 256 + \
- i * 8 + j))
- text += (' ' + ' '.join(bits))
- return '%s%s' % (next, text)
-
- def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
- next = tok.get_name()
- next = next.choose_relativity(origin, relativize)
- rdtypes = []
- while 1:
- token = tok.get().unescape()
- if token.is_eol_or_eof():
- break
- nrdtype = dns.rdatatype.from_text(token.value)
- if nrdtype == 0:
- raise dns.exception.SyntaxError("NSEC with bit 0")
- if nrdtype > 65535:
- raise dns.exception.SyntaxError("NSEC with bit > 65535")
- rdtypes.append(nrdtype)
- rdtypes.sort()
- window = 0
- octets = 0
- prior_rdtype = 0
- bitmap = ['\0'] * 32
- windows = []
- for nrdtype in rdtypes:
- if nrdtype == prior_rdtype:
- continue
- prior_rdtype = nrdtype
- new_window = nrdtype // 256
- if new_window != window:
- windows.append((window, ''.join(bitmap[0:octets])))
- bitmap = ['\0'] * 32
- window = new_window
- offset = nrdtype % 256
- byte = offset // 8
- bit = offset % 8
- octets = byte + 1
- bitmap[byte] = chr(ord(bitmap[byte]) | (0x80 >> bit))
- windows.append((window, ''.join(bitmap[0:octets])))
- return cls(rdclass, rdtype, next, windows)
-
- from_text = classmethod(from_text)
-
- def to_wire(self, file, compress = None, origin = None):
- self.next.to_wire(file, None, origin)
- for (window, bitmap) in self.windows:
- file.write(chr(window))
- file.write(chr(len(bitmap)))
- file.write(bitmap)
-
- def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
- (next, cused) = dns.name.from_wire(wire[: current + rdlen], current)
- current += cused
- rdlen -= cused
- windows = []
- while rdlen > 0:
- if rdlen < 3:
- raise dns.exception.FormError("NSEC too short")
- window = ord(wire[current])
- octets = ord(wire[current + 1])
- if octets == 0 or octets > 32:
- raise dns.exception.FormError("bad NSEC octets")
- current += 2
- rdlen -= 2
- if rdlen < octets:
- raise dns.exception.FormError("bad NSEC bitmap length")
- bitmap = wire[current : current + octets].unwrap()
- current += octets
- rdlen -= octets
- windows.append((window, bitmap))
- if not origin is None:
- next = next.relativize(origin)
- return cls(rdclass, rdtype, next, windows)
-
- from_wire = classmethod(from_wire)
-
- def choose_relativity(self, origin = None, relativize = True):
- self.next = self.next.choose_relativity(origin, relativize)
-
- def _cmp(self, other):
- return self._wire_cmp(other)