端口扫描小工具

2020-12-14 02:41:48 编辑 0 阅读量:510

```python
import sys
import socket as sk
from subprocess import Popen, PIPE
import re

MAXIP = 254  #默认局域网内最多254个主机

def pinger(inputip):
    pinglist=[]
    #对inputip进行分片
    cutip = inputip.split('.')
    cutip = cutip[0]+'.'+cutip[1]+'.'+cutip[2]+'.'
    for ip in range(1,MAXIP):
        print 'ping %s%d'  %(cutip,ip)
        p=Popen('ping -n 2 ' + cutip+str(ip) , stdout=PIPE)
        m = re.search('TTL', p.stdout.read())
        if m:
            pinglist.append(cutip+str(ip))
            print '%s is ok' %(cutip+str(ip))
    return pinglist
        
 
def scanipport(startport,endport,pinglist):
    ipports=[]
    #host in liveip
    for host in pinglist:
    #scan port from startport to endport
        for port in range(int(startport),int(endport)):
            sd=sk.socket(sk.AF_INET, sk.SOCK_STREAM)
            try:
                sd.connect((host,port))
                sd.close()
                print "%s:%d OPEN" % (host, port)
                ipports.append(host+':'+str(port)+'\n')
            except:
                print "%s:%d closed" % (host,port)
                pass
    #每隔ip直接空一行
        ipports.append('\n')     
    return ipports

if __name__ == '__main__':
    print 'example : python myscanports.py 192.168.2.0 1 1024'
    #have 3 argvs,or will fail
    if sys.argv[3]:
        if sys.argv[3] > sys.argv[2]:
            inputip = sys.argv[1]
            startport = sys.argv[2]
            endport = sys.argv[3]
            liveip = pinger(inputip)
            ipports = scanipport(startport,endport,liveip)
    #所得结果以文件形式保存
            f = file('IPPORTS.txt','w')
            f.writelines(ipports)
            f.close()
            print 'The answer save in IPPORTS.txt'
    else:
        print 'Must have ip startport endport'
        sys.exit()
```

端口扫描小工具

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