plist.py 文件源码

def conversations(self, getsrcdst=None,**kargs):
        """Graphes a conversations between sources and destinations and display it
        (using graphviz and imagemagick)
        getsrcdst: a function that takes an element of the list and return the source and dest
                   by defaults, return source and destination IP
        type: output type (svg, ps, gif, jpg, etc.), passed to dot's "-T" option
        target: filename or redirect. Defaults pipe to Imagemagick's display program
        prog: which graphviz program to use"""
        if getsrcdst is None:
            getsrcdst = lambda x:(x['IP'].src, x['IP'].dst)
        conv = {}
        for p in self.res:
            p = self._elt2pkt(p)
            try:
                c = getsrcdst(p)
            except:
                #XXX warning()
                continue
            conv[c] = conv.get(c,0)+1
        gr = 'digraph "conv" {\n'
        for s,d in conv:
            gr += '\t "%s" -> "%s"\n' % (s,d)
        gr += "}\n"        
        return do_graph(gr, **kargs)