基于python的端口扫描（内含源码和实验报告）.zip

# encoding: utf-8 import optparse import socket from socket import * from threading import * screenLock = Semaphore(value=1) threads = [] def connScan(tgtHost, tgtPort): try: connSkt = socket(AF_INET, SOCK_STREAM) connSkt.connect((tgtHost, tgtPort)) connSkt.send('ViolentPython\r\n'.encode('ascii')) result = connSkt.recv(100) screenLock.acquire() # 执行一个加锁操作 print('[+] %d/tcp open' % tgtPort) print('[banner] ' + str(result)) connSkt.close() except: screenLock.acquire() # 执行一个加锁操作 pass finally: # 执行释放锁的操作，同时将socket的连接在其后关闭 screenLock.release() connSkt.close() def portScan(tgtHost): try: tgtIP = gethostbyname(tgtHost) except: print("[-] Cannot resolve '%s' : Unknown host" % tgtHost) return try: tgtName = gethostbyaddr(tgtIP) print('\n[+] Scan Results for: ' + tgtName[1]) except: print('\n[+] Scan Results for: ' + tgtIP) setdefaulttimeout(1) for tgtPorts in range(1,1024): t = Thread(target=connScan,args=(tgtHost,tgtPorts)) threads.append(t) t.start() for t in threads: t.join() def main(): parser = optparse.OptionParser("[*] Usage : ./ThreadPortScanner.py -H <target host> ") parser.add_option('-H', dest='tgtHost', type='string', help='specify target host') (options, args) = parser.parse_args() tgtHost = options.tgtHost if (tgtHost == None): print(parser.usage) exit(0) portScan(tgtHost) if __name__ == '__main__': main()