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36 lines
1.3 KiB
Python
36 lines
1.3 KiB
Python
# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose with or without fee is hereby granted,
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# provided that the above copyright notice and this permission notice
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# appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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"""IPv4 helper functions."""
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import socket
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import sys
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if sys.hexversion < 0x02030000 or sys.platform == 'win32':
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#
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# Some versions of Python 2.2 have an inet_aton which rejects
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# the valid IP address '255.255.255.255'. It appears this
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# problem is still present on the Win32 platform even in 2.3.
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# We'll work around the problem.
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#
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def inet_aton(text):
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if text == '255.255.255.255':
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return '\xff' * 4
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else:
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return socket.inet_aton(text)
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else:
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inet_aton = socket.inet_aton
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inet_ntoa = socket.inet_ntoa
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