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')
results = connSkt.recv(100)
screenLock.acquire()
print ('[+] %d/tcp open'% tgtPort)
print ('[+] '+str(results))
except:
screenLock.acquire()
print ('[-] %d/tcp closed'% tgtPort)
finally:
screenLock.acquire()
connSkt.close()
def portScan(tgtHost, tgtPorts):
try:
tgtIP = gethostbyname(tgtHost)
except:
print ("[-] Cannet resolve '%s': Unknown host'"% tgtHost)
return
try:
tgtName = gethostbyaddr(tgtIP)
print ("\n[+] Scan Results for: "+tgtName[0])
except:
print ("\n[+] Scan Results for: "+tgtIP)
setdefaulttimeout(1)
for tgtPort in tgtPorts:
t = Thread(target=connScan, args=(tgtHost, int(tgtPort)))
t.start()
print ("Scanning Port "+ tgtPort)
def main():
parser = optparse.OptionParser('usage %prog -H
parser.add_option('-H', dest='tgtHost', type='string', help='specify target host')
parser.add_option('-p', dest='tgtPort', type='string', help='specify target port')
(options, args) = parser.parse_args()
tgtHost = options.tgtHost
tgtPorts = str(options.tgtPort).split(',')
if (tgtHost == None) | (tgtPorts[0] == None):
print (parser.usage)
exit(0)
portScan(tgtHost, tgtPorts)
if __name__ == '__main__':
main()
#'print (tgtHost+', '+str(tgtPort))
'''
c:\Python34\python.exe port_scanner.py -H localhost -p 135,136
'''