diff options
Diffstat (limited to 'source4/scripting/python/samba_external/dnspython/dns/rdtypes/IN/PX.py')
-rw-r--r-- | source4/scripting/python/samba_external/dnspython/dns/rdtypes/IN/PX.py | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/source4/scripting/python/samba_external/dnspython/dns/rdtypes/IN/PX.py b/source4/scripting/python/samba_external/dnspython/dns/rdtypes/IN/PX.py new file mode 100644 index 0000000000..4718944ff4 --- /dev/null +++ b/source4/scripting/python/samba_external/dnspython/dns/rdtypes/IN/PX.py @@ -0,0 +1,97 @@ +# Copyright (C) 2003-2007, 2009, 2010 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 struct + +import dns.exception +import dns.rdata +import dns.name + +class PX(dns.rdata.Rdata): + """PX record. + + @ivar preference: the preference value + @type preference: int + @ivar map822: the map822 name + @type map822: dns.name.Name object + @ivar mapx400: the mapx400 name + @type mapx400: dns.name.Name object + @see: RFC 2163""" + + __slots__ = ['preference', 'map822', 'mapx400'] + + def __init__(self, rdclass, rdtype, preference, map822, mapx400): + super(PX, self).__init__(rdclass, rdtype) + self.preference = preference + self.map822 = map822 + self.mapx400 = mapx400 + + def to_text(self, origin=None, relativize=True, **kw): + map822 = self.map822.choose_relativity(origin, relativize) + mapx400 = self.mapx400.choose_relativity(origin, relativize) + return '%d %s %s' % (self.preference, map822, mapx400) + + def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): + preference = tok.get_uint16() + map822 = tok.get_name() + map822 = map822.choose_relativity(origin, relativize) + mapx400 = tok.get_name(None) + mapx400 = mapx400.choose_relativity(origin, relativize) + tok.get_eol() + return cls(rdclass, rdtype, preference, map822, mapx400) + + from_text = classmethod(from_text) + + def to_wire(self, file, compress = None, origin = None): + pref = struct.pack("!H", self.preference) + file.write(pref) + self.map822.to_wire(file, None, origin) + self.mapx400.to_wire(file, None, origin) + + def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): + (preference, ) = struct.unpack('!H', wire[current : current + 2]) + current += 2 + rdlen -= 2 + (map822, cused) = dns.name.from_wire(wire[: current + rdlen], + current) + if cused > rdlen: + raise dns.exception.FormError + current += cused + rdlen -= cused + if not origin is None: + map822 = map822.relativize(origin) + (mapx400, cused) = dns.name.from_wire(wire[: current + rdlen], + current) + if cused != rdlen: + raise dns.exception.FormError + if not origin is None: + mapx400 = mapx400.relativize(origin) + return cls(rdclass, rdtype, preference, map822, mapx400) + + from_wire = classmethod(from_wire) + + def choose_relativity(self, origin = None, relativize = True): + self.map822 = self.map822.choose_relativity(origin, relativize) + self.mapx400 = self.mapx400.choose_relativity(origin, relativize) + + def _cmp(self, other): + sp = struct.pack("!H", self.preference) + op = struct.pack("!H", other.preference) + v = cmp(sp, op) + if v == 0: + v = cmp(self.map822, other.map822) + if v == 0: + v = cmp(self.mapx400, other.mapx400) + return v |