Python 多线程端口扫描软件

Python 多线程端口扫描软件

Python 写的开放式端口扫描.速度比c语言写的慢不少.我想可能是语言问题.

 

import  socket,sys,threading
try :
    hostname = sys.argv[ 1 ]
    portStart = int(sys.argv[ 2 ])
    portEnd = int(sys.argv[ 3 ])
    threadNum = int(sys.argv[ 4 ])
except :
     print   """ Python Port Scan Tool 
    Useage: pyScan ip port_Start port_End thread_Number """
    sys.exit( 1 )
    

print   " Pytho Port open scan tool by hide1713 "  
print   " scan host: %s from ports %s to %s use %s threads " % (hostname,portStart,portEnd,threadNum)
def  ScanPort(start,end):
     # print "scan form %d to %d"%(start,end)

    s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
     for  port  in  range(start,end):
         try :
            s.connect((hostname,port))
             print   " port %d is open " % port
            s.shutdown( 1 )
            
             # print "scaning port:",port
         except :
             continue
        
            
socketNum = int((portEnd - portStart) / threadNum)
end = portStart
for  n  in  range(threadNum):
     if  n == threadNum - 1 :
        end = portEnd
     else :
        end += socketNum
     # print "Start thread number %d scan port form %d to %d"%(n,portStart,end)
    t = threading.Thread(target =  ScanPort,args = (portStart,end))
    t.start()
    portStart = end