GNU adns
-
+
Advanced, easy to use, asynchronous-capable DNS client library and
utilities.
-
+
adns is a resolver library for C (and C++) programs, and a collection
of useful DNS resolver utilities.
-
+
C library
In contrast with the standard interfaces, gethostbyname et al and
TCP in case of long replies or queries, or to other nameservers if
several are available. It has sensible handling of bad responses
etc.
-
+
DNS utility programs
adns also comes with a number of utility programs for use from the
general-purpose DNS helper program for scripting languages which
can invoke and communicate with subprocesses. See the [1]adnshost
usage message for a summary of its capabilities.
-
+
+Forthcoming:
+
+ I hope that future versions may also have the following features:
+ * The library should be useable by threads in a multithreaded
+ program in a natural way. It should multiplex many threads'
+ queries through a single query socket.
+ * IPv6 support.
+ * Some kind of awareness of DNSSEC.
+ * Possibly some very limited caching behaviour.
+ * There was, at one point, a draft native Perl interface from Tony
+ Finch.
+
Documentation
I'm afraid there is no manual yet. However, competent C programmers
should be able to use the library based on the [2]commented adns.h
header file, and the usage messages for the programs should be
sufficient.
-
+
Feedback
I'd be pleased if you would let me know if you're using my library in
your project, and what you think of it.
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+
If you are subscribed to adns-discuss please send feedback, including
bug reports, there; otherwise send mail to
adns-bugreports@chiark.greenend.org.uk. If you'd prefer that your
message wasn't forwarded to the adns-bugreports list, send it to
adns-maint@chiark.greenend.org.uk.
-
+
Mailinglists
I have set up mailinglists adns-announce and adns-discuss. The
announcements list is moderated and will contain only announcements of
important bugs, new versions, etc. The bug reports address mentioned
above is also a mailing list; feel free to subscribe to it.
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+
There are [3]archives and subscription web pages, or you can subscribe
by sending mail containing the word `subscribe' to
adns-announce-REQUEST@chiark.greenend.org.uk or
adns-discuss-REQUEST@chiark.greenend.org.uk.
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+
Download
Available for download from [4]chiark.greenend.org.uk are:
* [6]adns.h API header file with comments, and [7]usage message for
adnshost (currently there is no manual, sorry).
* All versions released so far are also available via [8]anonymous
- FTP and [9]HTTP,
- * A mirror of my CVS repository is available via rsync from
+ FTP and [9]HTTP.
+
+ You can also access the project CVS repositories:
+ * A mirror of the source code repository is available via rsync from
rsync.chiark.greenend.org.uk::ftp/users/ian/cvs-pub/adns (use FTP
first to find your way around), or via [10]cvsweb.
-
- adns is also available from the [11]GNU Project FTP servers and their
- [12]mirrors.
-
+ * This web page is maintained in [11]Savannah, where you can browse
+ the [12]webpage CVS.
+
+ adns is also available from the [13]GNU Project FTP servers and their
+ [14]mirrors.
+
Technical note
- adns requires a real nameserver like [13]BIND or [14]Dents running on
+ adns requires a real nameserver like [15]BIND or [16]Dents running on
the same system or a nearby one, which must be willing to provide
`recursive service'. I.e., adns is a `stub resolver'. All properly
configured UN*X and GNU systems will already have such nameserver(s);
they are usually listed in /etc/resolv.conf.
-
+
References and related projects
- There is a [15]port to MS Visual Studio 6 C++ by Jarle Aase.
-
+ * [17]Python bindings by Andy Dustman.
+ * [18]Haskell bindings by Peter Simons.
+ * [19]liboop event loop library (by Dan Egnor) has a built-in
+ binding for adns.
+ * [20]port to MS Visual Studio 6 C++ by Jarle Aase.
+
Copyright and licensing
- adns is Copyright 1997-2000 Ian Jackson, Copyright 1999-2000 Tony
- Finch, and Copyright (C) 1991 Massachusetts Institute of Technology.
-
+ adns is Copyright 1997-2000,2003,2006 Ian Jackson, Copyright
+ 1999-2000,2003,2006 Tony Finch, and Copyright (C) 1991 Massachusetts
+ Institute of Technology.
+
adns is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.
-
+
This program and documentation is distributed in the hope that it will
be useful, but without any warranty; without even the implied warranty
of merchantability or fitness for a particular purpose. See the
- [16]GNU General Public License for more details.
-
+ [21]GNU General Public License for more details.
+
You should have received a copy of the GNU General Public License
along with adns, or one should be available above; if not, write to
- the [17]Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+ the [22]Free Software Foundation, 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA, or email adns-maint@chiark.greenend.org.uk.
_________________________________________________________________
-
- [18]Ian Jackson / [19]adns-maint@chiark.greenend.org.uk; more [20]free
+
+ [23]Ian Jackson / [24]adns-maint@chiark.greenend.org.uk; more [25]free
software by me.
-
- [21]GNU home page; [22]chiark home page; [23]site or mirror home page
-
- This web page is Copyright (C)1996-2000 Ian Jackson. See the
- [24]Copyright/acknowledgements.
-
- Use any browser - [25]Campaign for a non-browser-specific WWW
+
+ [26]GNU home page; [27]chiark home page; [28]site or mirror home page
+
+ This web page is Copyright (C)1996-2005 Ian Jackson. See the
+ [29]Copyright/acknowledgements.
+
+ Use any browser - [30]Campaign for a non-browser-specific WWW
References
8. ftp://ftp.chiark.greenend.org.uk/users/ian/adns/
9. http://www.chiark.greenend.org.uk/~ian/adns/ftp/
10. http://www.chiark.greenend.org.uk/ucgi/~ijackson/cvsweb/adns/
- 11. http://www.gnu.org/
- 12. http://www.gnu.org/order/ftp.html
- 13. http://www.isc.org/view.cgi?/products/BIND/index.phtml
- 14. http://www.dents.org/
- 15. http://adns.jgaa.com/
- 16. http://www.chiark.greenend.org.uk/~ian/COPYING.txt
- 17. http://www.fsf.org/
- 18. http://www.chiark.greenend.org.uk/
- 19. mailto:adns-maint@chiark.greenend.org.uk
- 20. http://www.chiark.greenend.org.uk/~ian/software/
- 21. http://www.gnu.org/
- 22. http://www.chiark.greenend.org.uk/
- 23. file://localhost/
- 24. http://www.chiark.greenend.org.uk/~ian/sw-www-copy.html
- 25. http://www.anybrowser.org/campaign/
+ 11. http://savannah.gnu.org/
+ 12. http://savannah.gnu.org/cgi-bin/viewcvs/software/adns/?cvsroot=www.gnu.org
+ 13. http://www.gnu.org/
+ 14. http://www.gnu.org/order/ftp.html
+ 15. http://www.isc.org/view.cgi?/products/BIND/index.phtml
+ 16. http://www.dents.org/
+ 17. http://dustman.net/andy/python/adns-python
+ 18. http://cryp.to/hsdns/
+ 19. http://liboop.ofb.net/ref
+ 20. http://adns.jgaa.com/
+ 21. http://www.chiark.greenend.org.uk/~ian/COPYING.txt
+ 22. http://www.fsf.org/
+ 23. http://www.chiark.greenend.org.uk/
+ 24. mailto:adns-maint@chiark.greenend.org.uk
+ 25. http://www.chiark.greenend.org.uk/~ian/software/
+ 26. http://www.gnu.org/
+ 27. http://www.chiark.greenend.org.uk/
+ 28. file://localhost/
+ 29. http://www.chiark.greenend.org.uk/~ian/sw-www-copy.html
+ 30. http://www.anybrowser.org/campaign/
~ianmdlvl / adns.git / blobdiff