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author | Andrew Tridgell <tridge@samba.org> | 2010-03-05 11:45:40 +1100 |
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committer | Andrew Tridgell <tridge@samba.org> | 2010-03-05 11:54:36 +1100 |
commit | 7d86257d54cb59d016a051b91bdee62ab2f8a0d5 (patch) | |
tree | ca682263ae2dffeaf58134e47080078864df64d4 /source4/scripting/python/samba_external/dnspython/dns/rdtypes/IN/PX.py | |
parent | f3ca7a4696cadbb74f41dd71ef9336445682d406 (diff) | |
download | samba-7d86257d54cb59d016a051b91bdee62ab2f8a0d5.tar.gz samba-7d86257d54cb59d016a051b91bdee62ab2f8a0d5.tar.bz2 samba-7d86257d54cb59d016a051b91bdee62ab2f8a0d5.zip |
s4-python: import a copy of the python dns library
This library is not installed on enough systems for us to rely
on it being available. We use the system copy if possible, and
fallback to this local copy
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
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 |