hsdns: Asynchronous DNS Resolver

This library provides an asynchronous DNS resolver on top of GNU ADNS http://www.chiark.greenend.org.uk/~ian/adns/. Not all options are supported, but A, MX, and PTR lookups work nicely. There is also support for retrieving generic RR types, CNAMEs, and for NSEC zone walking. The library can be expected to work with fine ADNS 1.4 or later. It might also work with version ADNS 1.3, but that hasn’t been tested.

The example program adns-reverse-lookup.hs demonstrates how the resolver is used. Given a list of host names on the command line, it performs an A/PTR double-lookup and checks whether the records are consistent. The output is printed in the order in which the DNS responses arrive:

$ ./adns-reverse-lookup xyz.example.org ecrc.de www.example.com www.cryp.to
OK: www.example.com <-> 208.77.188.166
ERR: xyz.example.org: cannot resolve A
FAIL: www.cryp.to -> 195.234.152.69 -> ["research.cryp.to"]
FAIL: ecrc.de -> 127.0.0.1 -> ["localhost"]

Modules

[Index]

Downloads

• hsdns-1.4.2.tar.gz [browse] (Cabal source package)
• Package description (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

Package maintainers

• GwernBranwen, PeterSimons

For package maintainers and hackage trustees

• edit package information

Candidates

• No Candidates