Island: Remove disused local_ips() functions

monkey/monkey_island/cc/services/utils/network_utils.py

@@ -1,57 +1,9 @@
-import array
 import ipaddress
-import socket
-import struct
-import sys
 from typing import Sequence
 
 from netifaces import AF_INET, ifaddresses, interfaces
 from ring import lru
 
-# Local ips function
-# TODO: I can't find anywhere these are actually used. Confirm this is the case, remove these
-#       functions, and test.
-if sys.platform == "win32":
-
-    def local_ips():
-        local_hostname = socket.gethostname()
-        return socket.gethostbyname_ex(local_hostname)[2]
-
-else:
-    import fcntl
-
-    def local_ips():
-        result = []
-        try:
-            is_64bits = sys.maxsize > 2**32
-            struct_size = 40 if is_64bits else 32
-            s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-            max_possible = 8  # initial value
-            while True:
-                struct_bytes = max_possible * struct_size
-                names = array.array("B", "\0" * struct_bytes)
-                outbytes = struct.unpack(
-                    "iL",
-                    fcntl.ioctl(
-                        s.fileno(),
-                        0x8912,  # SIOCGIFCONF
-                        struct.pack("iL", struct_bytes, names.buffer_info()[0]),
-                    ),
-                )[0]
-                if outbytes == struct_bytes:
-                    max_possible *= 2
-                else:
-                    break
-            namestr = names.tostring()
-
-            for i in range(0, outbytes, struct_size):
-                addr = socket.inet_ntoa(namestr[i + 20 : i + 24])
-                if not addr.startswith("127"):
-                    result.append(addr)
-                    # name of interface is (namestr[i:i+16].split('\0', 1)[0]
-        finally:
-            return result
-
 
 # The local IP addresses list should not change often. Therefore, we can cache the result and never
 # call this function more than once. This stopgap measure is here since this function is called a