nihilist/tor
1
0
Fork 0
mirror of https://gitlab.torproject.org/tpo/core/tor.git synced 2024-11-24 04:13:28 +01:00
Code Issues Packages Projects Releases Wiki Activity

stop wasting time doing a case insensitive comparison for every dns name

Browse Source 
every time we do any lookup. canonicalize the names to lowercase and be
done with it.


svn:r4035
This commit is contained in:
Roger Dingledine 2005-04-06 20:25:21 +00:00
parent 46089c49c4
commit 03720b39fd
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/or/dns.c
View File

@ -81,7 +81,7 @@ static SPLAY_HEAD(cache_tree, cached_resolve) cache_root;
static int compare_cached_resolves(struct cached_resolve *a,
struct cached_resolve *b) {
/* make this smarter one day? */
return strncasecmp(a->address, b->address, MAX_ADDRESSLEN);
return strncmp(a->address, b->address, MAX_ADDRESSLEN);
}
SPLAY_PROTOTYPE(cache_tree, cached_resolve, node, compare_cached_resolves);
@ -246,6 +246,9 @@ int dns_resolve(connection_t *exitconn) {
* resolves in the tree. */
purge_expired_resolves(now);
/* lower-case exitconn->address, so it's in canonical form */
tor_strlower(exitconn->address);
/* now check the tree to see if 'address' is already there. */
strlcpy(search.address, exitconn->address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);