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Shut up a signed/unsigned compiler warning from MSVC++ by converting

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newlength and oldlength from signed to unsigned in join_nodes().

Use dns_name_clone for minor efficiency gain in dns_rbt_addnode.

Use fixed names in dns_rbt_findnode() for minor efficiency gain.
This commit is contained in:
David Lawrence
1999-09-23 17:53:03 +00:00
parent 31b2823833
commit df1e2d496e
1 changed files with 12 additions and 17 deletions
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29
lib/dns/rbt.c
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@@ -1,4 +1,4 @@
/* R/*
* Copyright (C) 1999 Internet Software Consortium. * Copyright (C) 1999 Internet Software Consortium.
* *
* Permission to use, copy, modify, and distribute this software for any * Permission to use, copy, modify, and distribute this software for any
@@ -15,7 +15,7 @@
* SOFTWARE. * SOFTWARE.
*/ */
/* $Id: rbt.c,v 1.55 1999/08/26 07:14:25 halley Exp $ */ /* $Id: rbt.c,v 1.56 1999/09/23 17:53:03 tale Exp $ */
/* Principal Authors: DCL */ /* Principal Authors: DCL */
@@ -372,7 +372,7 @@ dns_rbt_addnode(dns_rbt_t *rbt, dns_name_t *name, dns_rbtnode_t **nodep) {
*/ */
dns_fixedname_init(&fixedcopy); dns_fixedname_init(&fixedcopy);
add_name = dns_fixedname_name(&fixedcopy); add_name = dns_fixedname_name(&fixedcopy);
dns_name_concatenate(name, NULL, add_name, NULL); dns_name_clone(name, add_name);
if (rbt->root == NULL) { if (rbt->root == NULL) {
result = create_node(rbt->mctx, add_name, &new_current); result = create_node(rbt->mctx, add_name, &new_current);
@@ -703,13 +703,10 @@ dns_rbt_findnode(dns_rbt_t *rbt, dns_name_t *name, dns_name_t *foundname,
{ {
dns_rbtnode_t *current; dns_rbtnode_t *current;
dns_rbtnodechain_t localchain; dns_rbtnodechain_t localchain;
dns_name_t *search_name, current_name, *callback_name, tmp_name; dns_name_t *search_name, current_name, *callback_name;
dns_offsets_t tmp_offsets; dns_fixedname_t fixedcallbackname, fixedsearchname;
dns_fixedname_t fixedcallbackname;
dns_namereln_t compared; dns_namereln_t compared;
dns_result_t result, saved_result; dns_result_t result, saved_result;
isc_buffer_t buffer;
unsigned char data[255];
unsigned int common_labels, common_bits; unsigned int common_labels, common_bits;
int order; int order;
@@ -733,15 +730,13 @@ dns_rbt_findnode(dns_rbt_t *rbt, dns_name_t *name, dns_name_t *foundname,
/* /*
* search_name is the name segment being sought in each tree level. * search_name is the name segment being sought in each tree level.
* Ensure that it has offsets by making a copy into a structure * By using a fixedname, the search_name will definitely have offsets
* that has offsets. Since weird juju happens when splitting bitstring * and a buffer for use by any splitting that happens in the middle
* labels, a buffer is provided for the bitfiddling to use; however, * of a bitstring label. By using dns_name_clone, no name data is
* the input name's data is used to avoid unnecessary copying. * copied unless a bitstring split occurs.
*/ */
search_name = &tmp_name; dns_fixedname_init(&fixedsearchname);
dns_name_init(search_name, tmp_offsets); search_name = dns_fixedname_name(&fixedsearchname);
isc_buffer_init(&buffer, data, 255, ISC_BUFFERTYPE_BINARY);
dns_name_setbuffer(search_name, &buffer);
dns_name_clone(name, search_name); dns_name_clone(name, search_name);
dns_name_init(&current_name, NULL); dns_name_init(&current_name, NULL);
@@ -1263,7 +1258,7 @@ join_nodes(dns_rbt_t *rbt,
dns_result_t result; dns_result_t result;
dns_fixedname_t fixed_newname; dns_fixedname_t fixed_newname;
dns_name_t *newname, prefix, suffix; dns_name_t *newname, prefix, suffix;
int newlength, oldlength; unsigned int newlength, oldlength;
REQUIRE(VALID_RBT(rbt)); REQUIRE(VALID_RBT(rbt));
REQUIRE(node != NULL); REQUIRE(node != NULL);