windows下python-nmap运行过程中出现的问题及解决办法

1）问题描述

　　在windows下会抛出以下异常。

Traceback (most recent call last):
  File "ftplogin_file.py", line 111, in <module>
    main()
  File "ftplogin_file.py", line 109, in main
    ftpLogin(filepath)
  File "ftplogin_file.py", line 77, in ftpLogin
    if nmapScan(ip,"21") == True:
  File "ftplogin_file.py", line 8, in nmapScan
    nmScan = nmap.PortScanner()
  File "C:\Python27\lib\site-packages\nmap\nmap.py", line 144, in __init__
    raise PortScannerError(‘nmap program was not found in path. PATH is : {0}‘.f
ormat(os.getenv(‘PATH‘)))
nmap.nmap.PortScannerError: ‘nmap program was not found in path. PATH is : C:\\W
INDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\Python27;D:\\WPS Of
fice\\9.1.0.4468\\office6;C:\\Program Files\\Microsoft Visual Studio\\Common\\To
ols\\WinNT;C:\\Program Files\\Microsoft Visual Studio\\Common\\MSDev98\\Bin;C:\\
Program Files\\Microsoft Visual Studio\\Common\\Tools;C:\\Program Files\\Microso
ft Visual Studio\\VC98\\bin‘  

抛出异常的地方

nmScan = nmap.PortScanner()

2）解决方案

　　抛出异常的原因是因为没有指定nmap的执行路径所致,在windows下需要手动指定nmap的执行路径。

修改后

nmScan = nmap.PortScanner(nmap_search_path=(‘nmap‘,r"H:\Nmap\nmap.exe"))

3）修改后的完整代码

import nmap
import optparse

def nmapScan(tgtHost,tgtPort):
    nmScan = nmap.PortScanner(nmap_search_path=(‘nmap‘,r"H:\Nmap\nmap.exe"))
    nmScan.scan(tgtHost,tgtPort)
    state = nmScan[tgtHost][‘tcp‘][int(tgtPort)][‘state‘]
    print ‘[*]‘ + tgtHost + ‘ tcp/‘ + tgtPort + ‘ ‘ + state

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) | (tgtPorts[0] == None):
        print parser.usage
        exit(0)
    for tgtPort in tgtPorts:
        nmapScan(tgtHost,tgtPort)

if __name__ == ‘__main__‘:
    main()

4）再次运行,运行结果如下

D:\Python-Nmap>python2 test.py -H 192.168.1.44 -p 21,22,1720
[*]192.168.1.44 tcp/21 closed
[*]192.168.1.44 tcp/22 closed
[*]192.168.1.44 tcp/1720 closed