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author | Bob Halley <halley@dnspython.org> | 2005-09-02 05:21:28 +0000 |
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committer | Bob Halley <halley@dnspython.org> | 2005-09-02 05:21:28 +0000 |
commit | df24d7e7fe18b2a4cd79c35d1c2efbb3e7ee5abc (patch) | |
tree | 3a987bc61f9847fb2d344d4d1fdbc56fa8f6bff9 /dns/inet.py | |
parent | 2ed5e08d4485c5df41f6f2ef3b04148ef10af1cb (diff) | |
download | dnspython-df24d7e7fe18b2a4cd79c35d1c2efbb3e7ee5abc.tar.gz |
initial import
Original author: Bob Halley <halley@dnspython.org>
Date: 2004-03-23 21:57:40
Diffstat (limited to 'dns/inet.py')
-rw-r--r-- | dns/inet.py | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/dns/inet.py b/dns/inet.py new file mode 100644 index 0000000..1cf246f --- /dev/null +++ b/dns/inet.py @@ -0,0 +1,74 @@ +# Copyright (C) 2003, 2004 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. + +# $Id: inet.py,v 1.8 2004/03/19 00:17:27 halley Exp $ + +"""Generic Internet address helper functions.""" + +import socket + +import dns.ipv4 +import dns.ipv6 + + +# We assume that AF_INET is always defined. + +AF_INET = socket.AF_INET + +# AF_INET6 might not be defined in the socket module, but we need it. +# We'll try to use the socket module's value, and if it doesn't work, +# we'll use our own value. + +try: + AF_INET6 = socket.AF_INET6 +except AttributeError: + AF_INET6 = 9999 + +def inet_pton(family, text): + """Convert the textual form of a network address into its binary form. + + @param family: the address family + @type family: int + @param text: the textual address + @type text: string + @raises NotImplementedError: the address family specified is not + implemented. + @rtype: string + """ + + if family == AF_INET: + return dns.ipv4.inet_aton(text) + elif family == AF_INET6: + return dns.ipv6.inet_aton(text) + else: + raise NotImplementedError + +def inet_ntop(family, address): + """Convert the binary form of a network address into its textual form. + + @param family: the address family + @type family: int + @param address: the binary address + @type address: string + @raises NotImplementedError: the address family specified is not + implemented. + @rtype: string + """ + if family == AF_INET: + return dns.ipv4.inet_ntoa(address) + elif family == AF_INET6: + return dns.ipv6.inet_ntoa(address) + else: + raise NotImplementedError |