\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5×\D6?\BDê\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2€ \00 $\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # 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 cStringIO import struct import dns.exception import dns.inet import dns.rdata import dns.tokenizer class APLItem(object): """An APL list item. @ivar family: the address family (IANA address family registry) @type family: int @ivar negation: is this item negated? @type negation: bool @ivar address: the address @type address: string @ivar prefix: the prefix length @type prefix: int """ __slots__ = ['family', 'negation', 'address', 'prefix'] def __init__(self, family, negation, address, prefix): self.family = family self.negation = negation self.address = address self.prefix = prefix def __str__(self): if self.negation: return "!%d:%s/%s" % (self.family, self.address, self.prefix) else: return "%d:%s/%s" % (self.family, self.address, self.prefix) def to_wire(self, file): if self.family == 1: address = dns.inet.inet_pton(dns.inet.AF_INET, self.address) elif self.family == 2: address = dns.inet.inet_pton(dns.inet.AF_INET6, self.address) else: address = self.address.decode('hex_codec') # # Truncate least significant zero bytes. # last = 0 for i in xrange(len(address) - 1, -1, -1): if address[i] != chr(0): last = i + 1 break address = address[0 : last] l = len(address) assert l < 128 if self.negation: l |= 0x80 header = struct.pack('!HBB', self.family, self.prefix, l) file.write(header) file.write(address) class APL(dns.rdata.Rdata): """APL record. @ivar items: a list of APL items @type items: list of APL_Item @see: RFC 3123""" __slots__ = ['items'] def __init__(self, rdclass, rdtype, items): super(APL, self).__init__(rdclass, rdtype) self.items = items def to_text(self, origin=None, relativize=True, **kw): return ' '.join(map(lambda x: str(x), self.items)) def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): items = [] while 1: token = tok.get().unescape() if token.is_eol_or_eof(): break item = token.value if item[0] == '!': negation = True item = item[1:] else: negation = False (family, rest) = item.split(':', 1) family = int(family) (address, prefix) = rest.split('/', 1) prefix = int(prefix) item = APLItem(family, negation, address, prefix) item