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Diffstat (limited to 'lib/dnspython/dns/ipv4.py')
-rw-r--r-- | lib/dnspython/dns/ipv4.py | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/dnspython/dns/ipv4.py b/lib/dnspython/dns/ipv4.py new file mode 100644 index 0000000000..1569da5475 --- /dev/null +++ b/lib/dnspython/dns/ipv4.py @@ -0,0 +1,36 @@ +# 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 |