mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-22 12:55:05 +00:00
126 lines
3.9 KiB
Python
126 lines
3.9 KiB
Python
# This software released into the public domain. Anyone is free to copy,
|
|
# modify, publish, use, compile, sell, or distribute this software,
|
|
# either in source code form or as a compiled binary, for any purpose,
|
|
# commercial or non-commercial, and by any means.
|
|
|
|
import socket
|
|
import os
|
|
import sys
|
|
|
|
|
|
def inject_into_socket():
|
|
import ctypes
|
|
|
|
class in_addr(ctypes.Structure):
|
|
_fields_ = [("S_addr", ctypes.c_ubyte * 4)]
|
|
|
|
class in6_addr(ctypes.Structure):
|
|
_fields_ = [("Byte", ctypes.c_ubyte * 16)]
|
|
|
|
if hasattr(ctypes, "windll"):
|
|
# InetNtopW(
|
|
# INT family,
|
|
# const VOID *pAddr,
|
|
# PWSTR pStringBuf,
|
|
# size_t StringBufSize
|
|
# ) -> PCWSTR
|
|
InetNtopW = ctypes.windll.ws2_32.InetNtopW
|
|
|
|
# InetPtonW(
|
|
# INT family,
|
|
# PCWSTR pszAddrString,
|
|
# PVOID pAddrBuf
|
|
# ) -> INT
|
|
InetPtonW = ctypes.windll.ws2_32.InetPtonW
|
|
|
|
# WSAGetLastError() -> INT
|
|
WSAGetLastError = ctypes.windll.ws2_32.WSAGetLastError
|
|
else:
|
|
|
|
def not_windows():
|
|
raise SystemError("Invalid platform. ctypes.windll must be available.")
|
|
|
|
InetNtopW = not_windows
|
|
InetPtonW = not_windows
|
|
WSAGetLastError = not_windows
|
|
|
|
def inet_pton(address_family, ip_string):
|
|
if sys.version_info[0] > 2 and isinstance(ip_string, bytes):
|
|
raise TypeError("inet_pton() argument 2 must be str, not bytes")
|
|
|
|
if address_family == socket.AF_INET:
|
|
family = 2
|
|
addr = in_addr()
|
|
elif address_family == socket.AF_INET6:
|
|
family = 23
|
|
addr = in6_addr()
|
|
else:
|
|
raise OSError("unknown address family")
|
|
|
|
ip_string = ctypes.c_wchar_p(ip_string)
|
|
ret = InetPtonW(ctypes.c_int(family), ip_string, ctypes.byref(addr))
|
|
|
|
if ret == 1:
|
|
if address_family == socket.AF_INET:
|
|
return ctypes.string_at(addr.S_addr, 4)
|
|
else:
|
|
return ctypes.string_at(addr.Byte, 16)
|
|
elif ret == 0:
|
|
raise socket.error("illegal IP address string passed to inet_pton")
|
|
else:
|
|
err = WSAGetLastError()
|
|
if err == 10047:
|
|
e = socket.error("unknown address family")
|
|
elif err == 10014:
|
|
e = OSError("bad address")
|
|
else:
|
|
e = OSError("unknown error from inet_ntop")
|
|
e.errno = err
|
|
raise e
|
|
|
|
def inet_ntop(address_family, packed_ip):
|
|
if address_family == socket.AF_INET:
|
|
addr = in_addr()
|
|
if len(packed_ip) != ctypes.sizeof(addr.S_addr):
|
|
raise ValueError("packed IP wrong length for inet_ntop")
|
|
|
|
ctypes.memmove(addr.S_addr, packed_ip, 4)
|
|
buffer_len = 16
|
|
family = 2
|
|
|
|
elif address_family == socket.AF_INET6:
|
|
addr = in6_addr()
|
|
if len(packed_ip) != ctypes.sizeof(addr.Byte):
|
|
raise ValueError("packed IP wrong length for inet_ntop")
|
|
|
|
ctypes.memmove(addr.Byte, packed_ip, 16)
|
|
buffer_len = 46
|
|
family = 23
|
|
else:
|
|
raise ValueError("unknown address family")
|
|
|
|
buffer = ctypes.create_unicode_buffer(buffer_len)
|
|
|
|
ret = InetNtopW(
|
|
ctypes.c_int(family),
|
|
ctypes.byref(addr),
|
|
ctypes.byref(buffer),
|
|
ctypes.sizeof(buffer),
|
|
)
|
|
if ret is None:
|
|
err = WSAGetLastError()
|
|
if err == 10047:
|
|
e = ValueError("unknown address family")
|
|
else:
|
|
e = OSError("unknown error from inet_ntop")
|
|
e.errno = err
|
|
|
|
return ctypes.wstring_at(buffer, buffer_len).rstrip("\x00")
|
|
|
|
# Adding our two functions to the socket library
|
|
socket.inet_pton = inet_pton
|
|
socket.inet_ntop = inet_ntop
|
|
|
|
|
|
if os.name == "nt" and not hasattr(socket, "inet_pton"):
|
|
inject_into_socket()
|