1 files changed, 99 insertions, 0 deletions
diff --git a/lib/dnspython/dns/rdtypes/ANY/NXT.py b/lib/dnspython/dns/rdtypes/ANY/NXT.py
new file mode 100644
index 0000000000..99ae9b9dff
--- /dev/null
+++ b/lib/dnspython/dns/rdtypes/ANY/NXT.py
@@ -0,0 +1,99 @@
+# 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 dns.exception
+import dns.rdata
+import dns.rdatatype
+import dns.name
+
+class NXT(dns.rdata.Rdata):
+    """NXT record
+
+    @ivar next: the next name
+    @type next: dns.name.Name object
+    @ivar bitmap: the type bitmap
+    @type bitmap: string
+    @see: RFC 2535"""
+
+    __slots__ = ['next', 'bitmap']
+
+    def __init__(self, rdclass, rdtype, next, bitmap):
+        super(NXT, self).__init__(rdclass, rdtype)
+        self.next = next
+        self.bitmap = bitmap
+
+    def to_text(self, origin=None, relativize=True, **kw):
+        next = self.next.choose_relativity(origin, relativize)
+        bits = []
+        for i in xrange(0, len(self.bitmap)):
+            byte = ord(self.bitmap[i])
+            for j in xrange(0, 8):
+                if byte & (0x80 >> j):
+                    bits.append(dns.rdatatype.to_text(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)
+        bitmap = ['\x00', '\x00', '\x00', '\x00',
+                  '\x00', '\x00', '\x00', '\x00',
+                  '\x00', '\x00', '\x00', '\x00',
+                  '\x00', '\x00', '\x00', '\x00' ]
+        while 1:
+            token = tok.get().unescape()
+            if token.is_eol_or_eof():
+                break
+            if token.value.isdigit():
+                nrdtype = int(token.value)
+            else:
+                nrdtype = dns.rdatatype.from_text(token.value)
+            if nrdtype == 0:
+                raise dns.exception.SyntaxError("NXT with bit 0")
+            if nrdtype > 127:
+                raise dns.exception.SyntaxError("NXT with bit > 127")
+            i = nrdtype // 8
+            bitmap[i] = chr(ord(bitmap[i]) | (0x80 >> (nrdtype % 8)))
+        bitmap = dns.rdata._truncate_bitmap(bitmap)
+        return cls(rdclass, rdtype, next, bitmap)
+
+    from_text = classmethod(from_text)
+
+    def to_wire(self, file, compress = None, origin = None):
+        self.next.to_wire(file, None, origin)
+        file.write(self.bitmap)
+
+    def to_digestable(self, origin = None):
+        return self.next.to_digestable(origin) + self.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
+        bitmap = wire[current : current + rdlen]
+        if not origin is None:
+            next = next.relativize(origin)
+        return cls(rdclass, rdtype, next, bitmap)
+
+    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):
+        v = cmp(self.next, other.next)
+        if v == 0:
+            v = cmp(self.bitmap, other.bitmap)
+        return v