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test/dns: cover @fail_requests for evdns_base_free()

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This commit is contained in:
Azat Khuzhin 2015-11-23 15:28:40 +03:00
parent 123d372864
commit d6c6fb4200
1 changed files with 43 additions and 0 deletions
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43
test/regress_dns.c
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@ -2008,6 +2008,46 @@ end:
evutil_closesocket(fd);
}
static void
dns_client_fail_requests_test(void *arg)
{
struct basic_test_data *data = arg;
struct event_base *base = data->base;
struct evdns_base *dns = NULL;
struct evdns_server_port *dns_port = NULL;
ev_uint16_t portnum = 0;
char buf[64];
struct generic_dns_callback_result r[20];
int i;
dns_port = regress_get_dnsserver(base, &portnum, NULL,
regress_dns_server_cb, reissue_table);
tt_assert(dns_port);
evutil_snprintf(buf, sizeof(buf), "127.0.0.1:%d", (int)portnum);
dns = evdns_base_new(base, EVDNS_BASE_DISABLE_WHEN_INACTIVE);
tt_assert(!evdns_base_nameserver_ip_add(dns, buf));
for (i = 0; i < 20; ++i)
evdns_base_resolve_ipv4(dns, "foof.example.com", 0, generic_dns_callback, &r[i]);
n_replies_left = 20;
exit_base = base;
evdns_base_free(dns, 1 /** fail requests */);
/** run defered callbacks, to trigger UAF */
event_base_dispatch(base);
tt_int_op(n_replies_left, ==, 0);
for (i = 0; i < 20; ++i)
tt_int_op(r[i].result, ==, DNS_ERR_SHUTDOWN);
end:
evdns_close_server_port(dns_port);
}
#define DNS_LEGACY(name, flags) \
{ #name, run_legacy_test_fn, flags|TT_LEGACY, &legacy_setup, \
@ -2055,6 +2095,9 @@ struct testcase_t dns_testcases[] = {
TT_FORK, &testleak_funcs, NULL },
#endif
{ "client_fail_requests", dns_client_fail_requests_test,
TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
END_OF_TESTCASES
};