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Minor optimization - use the number of labels in the prefix as the loop

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counter, not the number of labels in the name.
This commit is contained in:
Brian Wellington
2001-01-04 19:25:59 +00:00
parent 99b792d88b
commit 1c33761bcf
3 changed files with 16 additions and 8 deletions
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13
lib/dns/compress.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: compress.c,v 1.40 2001/01/04 06:21:00 bwelling Exp $ */
/* $Id: compress.c,v 1.41 2001/01/04 19:25:57 bwelling Exp $ */
#define DNS_NAME_USEINLINE 1
@@ -151,11 +151,14 @@ dns_compress_findglobal(dns_compress_t *cctx, dns_name_t *name,
}
void
dns_compress_add(dns_compress_t *cctx, dns_name_t *name, isc_uint16_t offset) {
dns_compress_add(dns_compress_t *cctx, dns_name_t *name, dns_name_t *prefix,
isc_uint16_t offset)
{
dns_name_t tname, nname;
dns_label_t label;
unsigned int start;
unsigned int n;
unsigned int count;
unsigned int hash;
dns_compressnode_t *node;
@@ -166,8 +169,11 @@ dns_compress_add(dns_compress_t *cctx, dns_name_t *name, isc_uint16_t offset) {
dns_name_init(&nname, NULL);
n = dns_name_countlabels(name);
count = dns_name_countlabels(prefix);
if (dns_name_isabsolute(prefix))
count--;
start = 0;
while (n > 1) {
while (count > 0) {
if (offset >= 0x4000)
break;
dns_name_getlabelsequence(name, start, n, &tname);
@@ -203,6 +209,7 @@ dns_compress_add(dns_compress_t *cctx, dns_name_t *name, isc_uint16_t offset) {
offset += label.length;
start++;
n--;
count--;
}
}