static void
NS(test_main)(void *arg)
{
routerset_t *set = NULL;
int is_empty;
(void)arg;
is_empty = routerset_is_empty(set);
tt_int_op(is_empty, !=, 0);
set = routerset_new();
is_empty = routerset_is_empty(set);
routerset_free(set);
set = NULL;
tt_int_op(is_empty, !=, 0);
set = routerset_new();
smartlist_add(set->list, tor_strdup("{xx}"));
is_empty = routerset_is_empty(set);
routerset_free(set);
set = NULL;
tt_int_op(is_empty, ==, 0);
done:
;
}
/** Remove all TRACKEXIT mappings from the addressmap for which the target
* host is unknown or no longer allowed, or for which the source address
* is no longer in trackexithosts. */
void
addressmap_clear_excluded_trackexithosts(const or_options_t *options)
{
const routerset_t *allow_nodes = options->ExitNodes;
const routerset_t *exclude_nodes = options->ExcludeExitNodesUnion_;
if (!addressmap)
return;
if (routerset_is_empty(allow_nodes))
allow_nodes = NULL;
if (allow_nodes == NULL && routerset_is_empty(exclude_nodes))
return;
STRMAP_FOREACH_MODIFY(addressmap, address, addressmap_entry_t *, ent) {
size_t len;
const char *target = ent->new_address, *dot;
char *nodename;
const node_t *node;
if (!target) {
/* DNS resolving in progress */
continue;
} else if (strcmpend(target, ".exit")) {
/* Not a .exit mapping */
continue;
} else if (ent->source != ADDRMAPSRC_TRACKEXIT) {
/* Not a trackexit mapping. */
continue;
}
len = strlen(target);
if (len < 6)
continue; /* malformed. */
dot = target + len - 6; /* dot now points to just before .exit */
while (dot > target && *dot != '.')
dot--;
if (*dot == '.') dot++;
nodename = tor_strndup(dot, len-5-(dot-target));;
node = node_get_by_nickname(nodename, 0);
tor_free(nodename);
if (!node ||
(allow_nodes && !routerset_contains_node(allow_nodes, node)) ||
routerset_contains_node(exclude_nodes, node) ||
!hostname_in_track_host_exits(options, address)) {
/* We don't know this one, or we want to be rid of it. */
addressmap_ent_remove(address, ent);
MAP_DEL_CURRENT(address);
}
} STRMAP_FOREACH_END;
