端口扫描nmap

#!/usr/bin/python3

-- coding:utf-8 --

import sys
import nmap

scan_row = []
input_data = input('Please input hosts and port: ')
scan_row = input_data.split(" ")
if len(scan_row) != 2:
print("Input errors,example \"192.168.1.0/24 80,443,22\"")
sys.exit(0)
hosts = scan_row[0] # 接收用户输入的主机
port = scan_row[1] # 接收用户输入的端口

try:
nm = nmap.PortScanner() # 创建端口扫描对象
except nmap.PortScannerError:
print('Nmap not found', sys.exc_info()[0])
sys.exit(0)
except:
print("Unexpected error:", sys.exc_info()[0])
sys.exit(0)

try:
#scan指定扫描的命令
nm.scan(hosts=hosts, arguments=' -v -sS -p ' + port) # 调用扫描方法，参数指定扫描主机hosts，nmap扫描命令行参数arguments
except Exception as e:
print("Scan erro:" + str(e))

#all_hosts返回nmap扫描到的主机清单
for host in nm.all_hosts(): # 遍历扫描主机
print('----------------------------------------------------')
print('Host : %s (%s)' % (host, nm[host].hostname())) # 输出主机及主机名
print('State : %s' % nm[host].state()) # 输出主机状态，如up、down

for proto in nm[host].all_protocols():  # 遍历扫描协议，如tcp、udp
    print('----------')
    print('Protocol : %s' % proto)  # 输出协议名

    lport = nm[host][proto].keys()  # 获取协议的所有扫描端口
    for port in lport:  # 遍历端口及输出端口与状态
        print('port : %s\tstate : %s' % (port, nm[host][proto][port]['state']))