1 files changed, 0 insertions, 112 deletions
diff --git a/project2/proj2_s4498062/dns/domainname.py b/project2/proj2_s4498062/dns/domainname.py
deleted file mode 100644
index 6dbb039..0000000
--- a/project2/proj2_s4498062/dns/domainname.py
+++ /dev/null
@@ -1,112 +0,0 @@
-""" Parsing and composing domain names
-
-This module contains two classes for converting domain names to and from bytes.
-You won't have to use these classes. They're used internally in Message,
-Question, ResourceRecord and RecordData. You can read section 4.1.4 of RFC 1035
-if you want more info.
-"""
-
-import struct
-
-
-class Composer(object):
-    def __init__(self):
-        self.offsets = dict()
-
-    def to_bytes(self, offset, dnames):
-        # Convert each domain name in to bytes
-        result = b""
-        for _, dname in enumerate(dnames):
-            # Split domain name into labels
-            labels = dname.split(".")
-
-            # Determine keys of subdomains in offset dict
-            keys = []
-            for label in reversed(labels):
-                name = label
-                if keys:
-                    name += "." + keys[-1]
-                keys.append(name)
-            keys.reverse()
-
-            # Convert label to bytes
-            add_null = True
-            for j, label in enumerate(labels):
-                if keys[j] in self.offsets:
-                    offset = self.offsets[keys[j]]
-                    pointer = (3 << 14) + offset
-                    result += struct.pack("!H", pointer)
-                    add_null = False
-                    offset += 2
-                    break
-                else:
-                    self.offsets[keys[j]] = offset
-                    result += struct.pack(
-                        "!B{}s".format(len(label)),
-                        len(label),
-                        label)
-                    offset += 1 + len(label)
-
-            # Add null character at end
-            if add_null:
-                result += b"\x00"
-                offset += 1
-
-        return result
-
-
-class Parser(object):
-    def __init__(self):
-        self.labels = dict()
-
-    def from_bytes(self, packet, offset, num):
-        dnames = []
-
-        # Read the domain names
-        for _ in range(num):
-            # Read a new domain name
-            dname = ""
-            prev_offsets = []
-            done = False
-            while done is False:
-                # Read length of next label
-                llength = struct.unpack_from("!B", packet, offset)[0]
-
-                # Done reading domain when length is zero
-                if llength == 0:
-                    offset += 1
-                    break
-
-                # Compression label
-                elif (llength >> 6) == 3:
-                    new_offset = offset + 2
-                    target = struct.unpack_from("!H", packet, offset)[0]
-                    target -= 3 << 14
-                    label = self.labels[target]
-                    done = True
-
-                # Normal label
-                else:
-                    new_offset = offset + llength + 1
-                    label = struct.unpack_from(
-                        "{}s".format(llength),
-                        packet, offset+1)[0]
-
-                # Add label to dictionary
-                self.labels[offset] = label
-                for prev_offset in prev_offsets:
-                    self.labels[prev_offset] += "." + label
-                prev_offsets.append(offset)
-
-                # Update offset
-                offset = new_offset
-
-                # Append label to domain name
-                if len(dname) > 0:
-                    dname += "."
-                dname += label
-
-            # Append domain name to list
-            dnames.append(dname)
-
-        return dnames, offset