| # Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc. |
| # |
| # Permission to use, copy, modify, and distribute this software and its |
| # documentation 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 NOMINUM DISCLAIMS ALL WARRANTIES |
| # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM 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. |
| |
| """IPv4 helper functions.""" |
| |
| import socket |
| import sys |
| |
| if sys.hexversion < 0x02030000 or sys.platform == 'win32': |
| # |
| # Some versions of Python 2.2 have an inet_aton which rejects |
| # the valid IP address '255.255.255.255'. It appears this |
| # problem is still present on the Win32 platform even in 2.3. |
| # We'll work around the problem. |
| # |
| def inet_aton(text): |
| if text == '255.255.255.255': |
| return '\xff' * 4 |
| else: |
| return socket.inet_aton(text) |
| else: |
| inet_aton = socket.inet_aton |
| |
| inet_ntoa = socket.inet_ntoa |
