Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/hyperlink/_socket.py: 9%

1try: 

2 from socket import inet_pton 

3except ImportError: 

4 from typing import TYPE_CHECKING 

5 

6 if TYPE_CHECKING: # pragma: no cover 

7 pass 

8 else: 

9 # based on https://gist.github.com/nnemkin/4966028 

10 # this code only applies on Windows Python 2.7 

11 import ctypes 

12 import socket 

13 

14 class SockAddr(ctypes.Structure): 

15 _fields_ = [ 

16 ("sa_family", ctypes.c_short), 

17 ("__pad1", ctypes.c_ushort), 

18 ("ipv4_addr", ctypes.c_byte * 4), 

19 ("ipv6_addr", ctypes.c_byte * 16), 

20 ("__pad2", ctypes.c_ulong), 

21 ] 

22 

23 WSAStringToAddressA = ctypes.windll.ws2_32.WSAStringToAddressA 

24 WSAAddressToStringA = ctypes.windll.ws2_32.WSAAddressToStringA 

25 

26 def inet_pton(address_family, ip_string): 

27 # type: (int, str) -> bytes 

28 addr = SockAddr() 

29 ip_string_bytes = ip_string.encode("ascii") 

30 addr.sa_family = address_family 

31 addr_size = ctypes.c_int(ctypes.sizeof(addr)) 

32 

33 try: 

34 attribute, size = { 

35 socket.AF_INET: ("ipv4_addr", 4), 

36 socket.AF_INET6: ("ipv6_addr", 16), 

37 }[address_family] 

38 except KeyError: 

39 raise socket.error("unknown address family") 

40 

41 if ( 

42 WSAStringToAddressA( 

43 ip_string_bytes, 

44 address_family, 

45 None, 

46 ctypes.byref(addr), 

47 ctypes.byref(addr_size), 

48 ) 

49 != 0 

50 ): 

51 raise socket.error(ctypes.FormatError()) 

52 

53 return ctypes.string_at(getattr(addr, attribute), size)