c判断是ip还是域名

import socket
import re

def is_ip(value):
    ip_regex = r'\b(?:\d{1,3}\.){3}\d{1,3}\b'
    return bool(re.match(ip_regex, value))

def is_domain(value):
    domain_regex = r'\b(?:[a-zA-Z0-9]+(?:-[a-zA-Z0-9]+)*\.)+[a-zA-Z]{2,}\b'
    return bool(re.match(domain_regex, value))

def check_ip_or_domain(value):
    if is_ip(value):
        try:
            socket.inet_aton(value)
            return "IP"
        except socket.error:
            return "Invalid IP"
    elif is_domain(value):
        try:
            socket.gethostbyname(value)
            return "Domain"
        except socket.gaierror:
            return "Invalid Domain"
    else:
        return "Neither IP nor Domain"

print(check_ip_or_domain("192.168.1.1"))  # 输出: IP
print(check_ip_or_domain("www.example.com"))  # 输出: Domain
print(check_ip_or_domain("invalid-input"))  # 输出: Neither IP nor Domain