测试ipv6情况

来源：互联网发布：伯乐在线人工智能编辑：程序博客网时间：2024/06/08 17:00

#coding=utf8

#ipv4环境下：
#getaddrinfo from: ipv6-test.com
#[(2, 2, 17, '', ('5.135.165.173', 0)), (2, 1, 6, '', ('5.135.165.173', 0)), (30, 2, 17, '', ('2001:41d0:8:e8ad::1', 0, 0, 0)), (30, 1, 6, '', ('2001:41d0:8:e8ad::1', 0, 0, 0))]
#INET,5.135.165.173
#INET6,2001:41d0:8:e8ad::1

#ipv6环境下
#getaddrinfo from: ipv6-test.com
#[(30, 2, 17, '', ('64:ff9b::587:a5ad', 0, 0, 0)), (30, 1, 6, '', ('64:ff9b::587:a5ad', 0, 0, 0)), (2, 2, 17, '', ('5.135.165.173', 0)), (2, 1, 6, '', ('5.135.165.173', 0))]
#INET6,64:ff9b::587:a5ad
#INET,5.135.165.173

#测试时发现只要环境是ipv6，测试总会返回两个地址，如果是ipv4则大部分只返回ipv4地址，除了特别配置了ipv6的服务会返回ipv6地址

import sys, socket

strHost = "ipv6-test.com"

print("getaddrinfo from: " + strHost)
result = socket.getaddrinfo(strHost, None)
print(result)
for r in result:
if r[2] != socket.IPPROTO_TCP:
continue
if r[0] == socket.AF_INET:
print("INET," + r[4][0])
elif r[0] == socket.AF_INET6:
print("INET6," + r[4][0])

#测试中看起来ipv4则第一个地址是ipv4地址，ipv6环境则第一个地址是ipv6地址，不论是否服务端真正支持ipv6
bEnvIPv6 = False
if len(result) > 0:
if result[0][0] == socket.AF_INET6:
bEnvIPv6 = True
if bEnvIPv6:
print("IPv6 env.\n")
else:
print("IPv4 env.\n")

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