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Allow space for 255 levels in rbtnodechain because of bitlabels.
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@ -15,7 +15,7 @@
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* SOFTWARE.
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*/
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/* $Id: rbt.c,v 1.28 1999/03/18 21:20:46 tale Exp $ */
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/* $Id: rbt.c,v 1.29 1999/03/18 21:32:51 tale Exp $ */
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/* Principal Authors: DCL */
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@ -70,10 +70,16 @@ struct dns_rbtnodechain {
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int ancestor_count;
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int ancestor_maxitems;
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/*
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* The maximum number of labels in a name is 128; need space for 127
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* to be able to store the down pointer history for the worst case.
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* The maximum number of labels in a name is 128; bitstrings mean
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* a conceptually very large number (which I have not bothered to
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* compute) of logical levels because splitting can potentially occur
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* at each bit. However, DNSSEC restricts the number of "logical"
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* labels in a name to 255, meaning only 256 pointers are needed
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* in the worst case.
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*
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* XXX DCL something in here should probably check for the 255 limit.
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*/
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dns_rbtnode_t * levels[127];
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dns_rbtnode_t * levels[256];
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int level_count;
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};
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