4812f02dd0
bypassing the cache response stage and uniquifying mesh states. Four EDNS option lists were added to module_qstate (module_qstate.edns_opts_*) to store EDNS options from/to front/back side. - Added two flags to module_qstate (no_cache_lookup, no_cache_store) that control the modules' cache interactions. - Added code for registering inplace callback functions. The registered functions can be called just before replying with local data or Chaos, replying from cache, replying with SERVFAIL, replying with a resolved query, sending a query to a nameserver. The functions can inspect the available data and maybe change response/query related data (i.e. append EDNS options). - Updated Python module for the above. - Updated Python documentation. git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@3947 be551aaa-1e26-0410-a405-d3ace91eadb9
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913 B
ReStructuredText
34 lines
913 B
ReStructuredText
.. _example_resolve_name:
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Resolve a name
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==============
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This basic example shows how to create a context and resolve a host address
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(DNS record of A type).
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Source code
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-----------
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::
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#!/usr/bin/python
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import unbound
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ctx = unbound.ub_ctx()
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ctx.resolvconf("/etc/resolv.conf")
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status, result = ctx.resolve("www.google.com")
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if status == 0 and result.havedata:
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print "Result.data:", result.data.address_list
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elif status != 0:
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print "Resolve error:", unbound.ub_strerror(status)
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In contrast with the C API, the source code is more compact while the
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performance of C implementation is preserved.
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The main advantage is that you need not take care about the deallocation and
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allocation of context and result structures; pyUnbound module does it
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automatically for you.
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If only domain name is given, the :meth:`unbound.ub_ctx.resolve` looks for
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A records in IN class.
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