hsearch_r
int hsearch_r(ENTRY, ACTION, ENTRY **, struct hsearch_data *);
(void)hsearch_r(item, action, &ep, &htable);
ATF_REQUIRE(hsearch_r(e, ENTER, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, FIND, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, ENTER, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, ENTER, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, FIND, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, FIND, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, ENTER, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, ENTER, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, FIND, &ep, &t) == 1);
ATF_REQUIRE(hsearch_r(e, FIND, &ep2, &t) == 1);