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<h1>iter_fwd.h File Reference</h1>This file contains functions to assist the iterator module.
<a href="#_details">More...</a>
<p>
<code>#include "<a class="el" href="rbtree_8h.html">util/rbtree.h</a>"</code><br>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structiter__forwards.html">iter_forwards</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Iterator forward zones structure. <a href="structiter__forwards.html#_details">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structiter__forward__zone.html">iter_forward_zone</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Iterator forward servers for a particular zone. <a href="structiter__forward__zone.html#_details">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#9112dabfcd9cc1ba0e68e87a6b959ba7">forwards_create</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create forwards. <a href="#9112dabfcd9cc1ba0e68e87a6b959ba7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#ae34fdf33bc961031803aaf17f4f5c54">forwards_delete</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Delete forwards. <a href="#ae34fdf33bc961031803aaf17f4f5c54"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#cbf01366217e888caca4245610192030">forwards_apply_cfg</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd, struct <a class="el" href="structconfig__file.html">config_file</a> *cfg)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Process forwards config. <a href="#cbf01366217e888caca4245610192030"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct <a class="el" href="structdelegpt.html">delegpt</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#38478340e1f530190b0e406029628f12">forwards_lookup</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd, uint8_t *qname, uint16_t qclass)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find forward zone information For this qname/qclass find forward zone information, returns delegation point with server names and addresses, or NULL if no forwarding is needed. <a href="#38478340e1f530190b0e406029628f12"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct <a class="el" href="structdelegpt.html">delegpt</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#942b8b9d8b619b062e45f664e8b46b0b">forwards_lookup_root</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd, uint16_t qclass)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Same as forwards_lookup, but for the root only. <a href="#942b8b9d8b619b062e45f664e8b46b0b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#bce2eb0d1967f06988e89d575ef8f4c1">forwards_get_mem</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get memory in use by forward storage. <a href="#bce2eb0d1967f06988e89d575ef8f4c1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9d98882e665361b87b885a112e0950df"></a><!-- doxytag: member="iter_fwd.h::fwd_cmp" ref="9d98882e665361b87b885a112e0950df" args="(const void *k1, const void *k2)" -->
int </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#9d98882e665361b87b885a112e0950df">fwd_cmp</a> (const void *k1, const void *k2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">compare two fwd entries <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#9d8b0bc6652b1a02468d8b2b73f217b3">forwards_add_zone</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd, uint16_t c, struct <a class="el" href="structdelegpt.html">delegpt</a> *dp)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add zone to forward structure. <a href="#9d8b0bc6652b1a02468d8b2b73f217b3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="iter__fwd_8h.html#de132f7d90fc6d2a9129c2284ddc6248">forwards_delete_zone</a> (struct <a class="el" href="structiter__forwards.html">iter_forwards</a> *fwd, uint16_t c, uint8_t *nm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Remove zone from forward structure. <a href="#de132f7d90fc6d2a9129c2284ddc6248"></a><br></td></tr>
</table>
<hr><h2>Detailed Description</h2>
This file contains functions to assist the iterator module.
<p>
Keep track of forward zones, and read those from config. <hr><h2>Function Documentation</h2>
<a class="anchor" name="9112dabfcd9cc1ba0e68e87a6b959ba7"></a><!-- doxytag: member="iter_fwd.h::forwards_create" ref="9112dabfcd9cc1ba0e68e87a6b959ba7" args="()" -->
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<td class="memname">struct <a class="el" href="structiter__forwards.html">iter_forwards</a>* forwards_create </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [read]</code></td>
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<p>
Create forwards.
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>new forwards or NULL on error. </dd></dl>
<p>References <a class="el" href="iter__fwd_8c_source.html#l00082">forwards_delete()</a>, <a class="el" href="iter__fwd_8h_source.html#l00055">iter_forwards::region</a>, and <a class="el" href="regional_8c_source.html#l00061">regional_create()</a>.</p>
<p>Referenced by <a class="el" href="unbound-checkconf_8c_source.html#l00536">check_fwd()</a>, <a class="el" href="libworker_8c_source.html#l00092">libworker_setup()</a>, and <a class="el" href="worker_8c_source.html#l00967">worker_init()</a>.</p>
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<a class="anchor" name="ae34fdf33bc961031803aaf17f4f5c54"></a><!-- doxytag: member="iter_fwd.h::forwards_delete" ref="ae34fdf33bc961031803aaf17f4f5c54" args="(struct iter_forwards *fwd)" -->
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<td class="memname">void forwards_delete </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em> </td>
<td> ) </td>
<td></td>
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<p>
Delete forwards.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>to delete. </td></tr>
</table>
</dl>
<p>References <a class="el" href="iter__fwd_8h_source.html#l00055">iter_forwards::region</a>, <a class="el" href="regional_8c_source.html#l00108">regional_destroy()</a>, and <a class="el" href="iter__fwd_8h_source.html#l00063">iter_forwards::tree</a>.</p>
<p>Referenced by <a class="el" href="unbound-checkconf_8c_source.html#l00536">check_fwd()</a>, <a class="el" href="iter__fwd_8c_source.html#l00067">forwards_create()</a>, <a class="el" href="libworker_8c_source.html#l00071">libworker_delete()</a>, <a class="el" href="libworker_8c_source.html#l00092">libworker_setup()</a>, and <a class="el" href="worker_8c_source.html#l01115">worker_delete()</a>.</p>
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<a class="anchor" name="cbf01366217e888caca4245610192030"></a><!-- doxytag: member="iter_fwd.h::forwards_apply_cfg" ref="cbf01366217e888caca4245610192030" args="(struct iter_forwards *fwd, struct config_file *cfg)" -->
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<td class="memname">int forwards_apply_cfg </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structconfig__file.html">config_file</a> * </td>
<td class="paramname"> <em>cfg</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Process forwards config.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>where to store. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>cfg,:</em> </td><td>config options. </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 on error. </dd></dl>
<p>References <a class="el" href="iter__fwd_8c_source.html#l00052">fwd_cmp()</a>, <a class="el" href="iter__fwd_8c_source.html#l00124">fwd_init_parents()</a>, <a class="el" href="iter__fwd_8c_source.html#l00267">make_stub_holes()</a>, <a class="el" href="rbtree_8c_source.html#l00077">rbtree_create()</a>, <a class="el" href="iter__fwd_8c_source.html#l00225">read_forwards()</a>, <a class="el" href="iter__fwd_8h_source.html#l00055">iter_forwards::region</a>, <a class="el" href="regional_8c_source.html#l00090">regional_free_all()</a>, and <a class="el" href="iter__fwd_8h_source.html#l00063">iter_forwards::tree</a>.</p>
<p>Referenced by <a class="el" href="unbound-checkconf_8c_source.html#l00536">check_fwd()</a>, <a class="el" href="remote_8c_source.html#l01295">do_forward()</a>, <a class="el" href="libworker_8c_source.html#l00092">libworker_setup()</a>, and <a class="el" href="worker_8c_source.html#l00967">worker_init()</a>.</p>
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<a class="anchor" name="38478340e1f530190b0e406029628f12"></a><!-- doxytag: member="iter_fwd.h::forwards_lookup" ref="38478340e1f530190b0e406029628f12" args="(struct iter_forwards *fwd, uint8_t *qname, uint16_t qclass)" -->
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<td class="memname">struct <a class="el" href="structdelegpt.html">delegpt</a>* forwards_lookup </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t * </td>
<td class="paramname"> <em>qname</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"> <em>qclass</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [read]</code></td>
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<div class="memdoc">
<p>
Find forward zone information For this qname/qclass find forward zone information, returns delegation point with server names and addresses, or NULL if no forwarding is needed.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>forward storage. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>qname,:</em> </td><td>The qname of the query. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>qclass,:</em> </td><td>The qclass of the query. </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>: A delegation point if the query has to be forwarded to that list, otherwise null. </dd></dl>
<p>References <a class="el" href="iter__fwd_8h_source.html#l00085">iter_forward_zone::dclass</a>, <a class="el" href="dname_8c_source.html#l00384">dname_count_size_labels()</a>, <a class="el" href="dname_8c_source.html#l00424">dname_lab_cmp()</a>, <a class="el" href="iter__fwd_8h_source.html#l00081">iter_forward_zone::dp</a>, <a class="el" href="rbtree_8h_source.html#l00063">rbnode_t::key</a>, <a class="el" href="iter__fwd_8h_source.html#l00073">iter_forward_zone::name</a>, <a class="el" href="iter__fwd_8h_source.html#l00077">iter_forward_zone::namelabs</a>, <a class="el" href="iter__fwd_8h_source.html#l00075">iter_forward_zone::namelen</a>, <a class="el" href="iter__fwd_8h_source.html#l00071">iter_forward_zone::node</a>, <a class="el" href="iter__fwd_8h_source.html#l00083">iter_forward_zone::parent</a>, <a class="el" href="rbtree_8c_source.html#l00507">rbtree_find_less_equal()</a>, and <a class="el" href="iter__fwd_8h_source.html#l00063">iter_forwards::tree</a>.</p>
<p>Referenced by <a class="el" href="iterator_8c_source.html#l00788">forward_request()</a>, <a class="el" href="iter__fwd_8c_source.html#l00349">forwards_lookup_root()</a>, and <a class="el" href="remote_8c_source.html#l01230">print_root_fwds()</a>.</p>
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<a class="anchor" name="942b8b9d8b619b062e45f664e8b46b0b"></a><!-- doxytag: member="iter_fwd.h::forwards_lookup_root" ref="942b8b9d8b619b062e45f664e8b46b0b" args="(struct iter_forwards *fwd, uint16_t qclass)" -->
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<td class="memname">struct <a class="el" href="structdelegpt.html">delegpt</a>* forwards_lookup_root </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"> <em>qclass</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [read]</code></td>
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<p>
Same as forwards_lookup, but for the root only.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>forward storage. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>qclass,:</em> </td><td>The qclass of the query. </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>: A delegation point if root forward exists, otherwise null. </dd></dl>
<p>References <a class="el" href="iter__fwd_8c_source.html#l00315">forwards_lookup()</a>.</p>
<p>Referenced by <a class="el" href="iterator_8c_source.html#l00827">processInitRequest()</a>.</p>
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<a class="anchor" name="bce2eb0d1967f06988e89d575ef8f4c1"></a><!-- doxytag: member="iter_fwd.h::forwards_get_mem" ref="bce2eb0d1967f06988e89d575ef8f4c1" args="(struct iter_forwards *fwd)" -->
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<td class="memname">size_t forwards_get_mem </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em> </td>
<td> ) </td>
<td></td>
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<p>
Get memory in use by forward storage.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>forward storage. </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>bytes in use </dd></dl>
<p>References <a class="el" href="iter__fwd_8h_source.html#l00055">iter_forwards::region</a>, <a class="el" href="regional_8c_source.html#l00214">regional_get_mem()</a>, and <a class="el" href="iter__fwd_8h_source.html#l00063">iter_forwards::tree</a>.</p>
<p>Referenced by <a class="el" href="worker_8c_source.html#l00131">worker_mem_report()</a>.</p>
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<a class="anchor" name="9d8b0bc6652b1a02468d8b2b73f217b3"></a><!-- doxytag: member="iter_fwd.h::forwards_add_zone" ref="9d8b0bc6652b1a02468d8b2b73f217b3" args="(struct iter_forwards *fwd, uint16_t c, struct delegpt *dp)" -->
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<td class="memname">int forwards_add_zone </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"> <em>c</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structdelegpt.html">delegpt</a> * </td>
<td class="paramname"> <em>dp</em></td><td> </td>
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<td></td>
<td>)</td>
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<p>
Add zone to forward structure.
<p>
For external use since it recalcs the tree parents. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>the forward data structure </td></tr>
<tr><td valign="top"></td><td valign="top"><em>c,:</em> </td><td>class of zone </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dp,:</em> </td><td>delegation point with name and target nameservers for new forward zone. This delegation point and all its data must be malloced in the fwd->region. (then it is freed when the fwd is deleted). </td></tr>
</table>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>false on failure (out of memory); </dd></dl>
<p>References <a class="el" href="iter__fwd_8c_source.html#l00116">forwards_insert()</a>, and <a class="el" href="iter__fwd_8c_source.html#l00124">fwd_init_parents()</a>.</p>
<p>Referenced by <a class="el" href="remote_8c_source.html#l01295">do_forward()</a>.</p>
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<a class="anchor" name="de132f7d90fc6d2a9129c2284ddc6248"></a><!-- doxytag: member="iter_fwd.h::forwards_delete_zone" ref="de132f7d90fc6d2a9129c2284ddc6248" args="(struct iter_forwards *fwd, uint16_t c, uint8_t *nm)" -->
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<td class="memname">void forwards_delete_zone </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structiter__forwards.html">iter_forwards</a> * </td>
<td class="paramname"> <em>fwd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"> <em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t * </td>
<td class="paramname"> <em>nm</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Remove zone from forward structure.
<p>
For external use since it recalcs the tree parents. Does not actually release any memory, the region is unchanged. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fwd,:</em> </td><td>the forward data structure </td></tr>
<tr><td valign="top"></td><td valign="top"><em>c,:</em> </td><td>class of zone </td></tr>
<tr><td valign="top"></td><td valign="top"><em>nm,:</em> </td><td>name of zone (in uncompressed wireformat). </td></tr>
</table>
</dl>
<p>References <a class="el" href="iter__fwd_8h_source.html#l00085">iter_forward_zone::dclass</a>, <a class="el" href="dname_8c_source.html#l00384">dname_count_size_labels()</a>, <a class="el" href="iter__fwd_8c_source.html#l00124">fwd_init_parents()</a>, <a class="el" href="rbtree_8h_source.html#l00063">rbnode_t::key</a>, <a class="el" href="iter__fwd_8h_source.html#l00073">iter_forward_zone::name</a>, <a class="el" href="iter__fwd_8h_source.html#l00077">iter_forward_zone::namelabs</a>, <a class="el" href="iter__fwd_8h_source.html#l00075">iter_forward_zone::namelen</a>, <a class="el" href="iter__fwd_8h_source.html#l00071">iter_forward_zone::node</a>, <a class="el" href="rbtree_8c_source.html#l00326">rbtree_delete()</a>, <a class="el" href="rbtree_8c_source.html#l00280">rbtree_search()</a>, and <a class="el" href="iter__fwd_8h_source.html#l00063">iter_forwards::tree</a>.</p>
<p>Referenced by <a class="el" href="remote_8c_source.html#l01295">do_forward()</a>.</p>
</div>
</div><p>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Tue Oct 13 06:46:30 2009 for unbound by
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distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
550bbe86d83a7870fdddc73c68e5d2b2
>
files
>
171
