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Diffstat (limited to 'contrib/sdb/tcl/lookup.tcl')
| -rw-r--r-- | contrib/sdb/tcl/lookup.tcl | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/sdb/tcl/lookup.tcl b/contrib/sdb/tcl/lookup.tcl new file mode 100644 index 0000000..83a8e2a --- /dev/null +++ b/contrib/sdb/tcl/lookup.tcl @@ -0,0 +1,51 @@ +# Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC") +# Copyright (C) 2000, 2001 Internet Software Consortium. +# +# Permission to use, copy, modify, and/or distribute this software 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 ISC DISCLAIMS ALL WARRANTIES WITH +# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS. IN NO EVENT SHALL ISC 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: lookup.tcl,v 1.10 2007/06/19 23:47:08 tbox Exp $ + +# +# Sample lookup procedure for tcldb +# +# This lookup procedure defines zones with identical SOA, NS, and MX +# records at the apex and a single A record that varies from zone to +# zone at the name "www". +# +# Something like this could be used by a web hosting company to serve +# a number of domains without needing to create a separate master file +# for each domain. Instead, all per-zone data (in this case, a single +# IP address) specified in the named.conf file like this: +# +# zone "a.com." { type master; database "tcl 10.0.0.42"; }; +# zone "b.com." { type master; database "tcl 10.0.0.99"; }; +# +# Since the tcldb driver doesn't support zone transfers, there should +# be at least two identically configured master servers. In the +# example below, they are assumed to be called ns1.isp.nil and +# ns2.isp.nil. +# + +proc lookup {zone name} { + global dbargs + switch -- $name { + @ { return [list \ + {SOA 86400 "ns1.isp.nil. hostmaster.isp.nil. \ + 1 3600 1800 1814400 3600"} \ + {NS 86400 "ns1.isp.nil."} \ + {NS 86400 "ns2.isp.nil."} \ + {MX 86400 "10 mail.isp.nil."} ] } + www { return [list [list A 3600 $dbargs($zone)] ] } + } + return NXDOMAIN +} |