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Viewing changes to pylib/ipadr.py

  • Committer: Bazaar Package Importer
  • Author(s): Lars Bahner
  • Date: 2003-12-02 19:39:35 UTC
  • Revision ID: james.westby@ubuntu.com-20031202193935-fzzt289mntvy6a8q
Tags: upstream-20031118
Import upstream version 20031118

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pylib/ipadr.py
 
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import string
 
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# IP-Adresse in Stringform zu 4er-Tupel konvertieren
 
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def ipadrstr2tuple(IPAdrStr=''):
 
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  return map(string.atoi,string.split(IPAdrStr,'.',3))
 
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# IP-Adresse mit Netzwerkadresse/Netzwerkmaske vergleichen
 
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def MatchIPAdr(IPAdress,NetworkAdress,Mask):
 
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  IPAdressT=ipadrstr2tuple(IPAdress)
 
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  MaskT=ipadrstr2tuple(Mask)
 
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  NetworkAdressT=ipadrstr2tuple(NetworkAdress)
 
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  return (IPAdressT[0]&MaskT[0] == NetworkAdressT[0]&MaskT[0]) and \
 
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         (IPAdressT[1]&MaskT[1] == NetworkAdressT[1]&MaskT[1]) and \
 
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         (IPAdressT[2]&MaskT[2] == NetworkAdressT[2]&MaskT[2]) and \
 
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         (IPAdressT[3]&MaskT[3] == NetworkAdressT[3]&MaskT[3])
 
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def MatchIPAdrList(IPAdr,subnetlist):
 
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  if IPAdr and subnetlist:
 
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    for subnet in subnetlist:
 
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      net, mask = string.split(subnet,'/',1)
 
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      if MatchIPAdr(IPAdr,net,mask):
 
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        return 1
 
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  return 0
 
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