Coverage for src/lib/python/isc/net/parse : 100%

# Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC") 

# 

# Permission to use, copy, modify, and distribute this software for any 

# purpose with or without fee is hereby granted, provided that the above 

# copyright notice and this permission notice appear in all copies. 

# 

# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SYSTEMS CONSORTIUM 

# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL 

# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL 

# INTERNET SYSTEMS CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, 

# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING 

# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 

# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 

# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 

""" 

Checking and parsing of ports and IP addresses. 

""" 

from isc.net.addr import IPAddr, InvalidAddress 

import socket 

def port_parse(port): 

    """ 

    Takes a port as an int or string and checks if it is valid. It returns 

    the port as int. If it is not a valid port (the string doesn't contain 

    number or it is not in the valid range), it raises ValueError. 

    """ 

    inted = int(port) 

    if inted < 0: 

        raise ValueError("Port value " + str(inted) + 

            " too small, allower range is 0-65535") 

    if inted > 65535: 

        raise ValueError("Port value " + str(inted) + 

            " too large, allowed range is 0-65535") 

    return inted 

def addr_parse(addr): 

    """ 

    Checks and parses an IP address (either IPv4 or IPv6) and returns 

    the IPAddr object. It raises ValueError if the passed string is not 

    valid IP address. 

    """ 

    try: 

        return IPAddr(addr) 

    except InvalidAddress: 

        raise ValueError('Value ' + addr + 

            ' is not valid IPv4 or IPv6 address')