[python&php 网络编程]通过端口号获取服务名

1.python写法

import socket

def find_service_name():
    protocolname = 'tcp'
    for port in [80, 25]:
        print "Port: %s => service name: %s" %(port, socket.getservbyport(port, protocolname))
    
    print "Port: %s => service name: %s" %(53, socket.getservbyport(53, 'udp'))
    
if __name__ == '__main__':
    find_service_name()

2.php写法

<?php

function find_service_name(){
    $protocolname = 'tcp';
    foreach(array(80, 25) as $port){
        printf("Port: %s => service name: %s\n", $port, getservbyport($port, $protocolname));
    }
    printf("Port: %s => service name: %s\n", 53, getservbyport(53, $protocolname));
}

find_service_name();

两个脚本都会输出：

Port: 80 => service name: http
Port: 25 => service name: smtp
Port: 53 => service name: domain

80端口对应的服务是http 25端口是smtp 53是domain

python和php都有现成的方法来直接获取～

转载请标注原文地址：http://blog.youkuaiyun.com/ddjohn/article/details/49931199