在小溪的淙淙声中，饱含树脂的幼芽在开放，水下的草长出水面，岸上青草越发繁茂。雨滴从屋檐、墙头、树叶上跌下，就如同断了线的珠子一样，最后连在一起，形成水柱。
本文实例为大家分享了Python3多线程版TCP端口扫描器的具体代码，供大家参考，具体内容如下
使用命令
python BannerDemo.py -H 192.168.200.101 -p 22,3306
代码如下
import optparse
import socket
from socket import *
from threading import *
screenLock = Semaphore(value=1)
def connScan(tgtHost,tgtPort):
try:
connSkt = socket(AF_INET,SOCK_STREAM)
connSkt.connect((tgtHost,tgtPort))
connSkt.send('ViolentPython\r\n'.encode('utf-8'))
result = connSkt.recv(1024)
screenLock.acquire()
print("[+] %d/tcp open"%tgtPort)
print("[+]"+str(result))
except Exception as e:
screenLock.acquire()
print(e)
finally:
screenLock.release()
connSkt.close()
def portScan(tgtHost,tgtPorts):
try:
tgtIp = gethostbyname(tgtHost)
except:
print("[-] Cannot reslove '%s' : Unknown host" % tgtHost)
return
try:
tgtName = gethostbyaddr(tgtIp)
print("\n [+] Scan Result for: " + tgtName[0])
except:
print("\n [+] Scan Result for: " + tgtIp)
setdefaulttimeout(1)
for tgtPort in tgtPorts:
print("Scanning port "+ tgtPort)
t = Thread(target=connScan,args=(tgtHost,int(tgtPort)))
t.start()
def main():
parser = optparse.OptionParser("usage%prog -H <target host> -p <target port>")
parser.add_option('-H',dest='tgtHost',type='string',help='specify target host')
parser.add_option('-p',dest='tgtPort',type='string',help='specify target port[s] separated by comma')
options,args = parser.parse_args()
tgtHost = options.tgtHost
tgtPorts = str(options.tgtPort).split(',')
if(tgtHost == None or tgtPorts[0] == None):
print("[-] You must specify a target host and port[s]")
exit(0)
portScan(tgtHost,tgtPorts)
if __name__ == '__main__':
main()
本文Python3多线程版TCP端口扫描器到此结束。谁都不必失落，适合自己的人生就是就是最好的人生。小编再次感谢大家对我们的支持！
