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/*
* Copyright (C) Jakub Hrozek 2014 <jakub.hrozek@posteo.se>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include "config.h"
#include "torture.h"
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <arpa/inet.h>
#include <resolv.h>
#define ANSIZE 256
static int setup_dns_srv_ipv4(void **state)
{
torture_setup_dns_srv_ipv4(state);
setenv("RESOLV_WRAPPER_CONF", torture_server_resolv_conf(state), 1);
return 0;
}
static int teardown(void **state)
{
torture_teardown_dns_srv(state);
return 0;
}
static void test_res_nquery(void **state)
{
int rv;
struct __res_state dnsstate;
unsigned char answer[ANSIZE];
char addr[INET_ADDRSTRLEN];
ns_msg handle;
ns_rr rr; /* expanded resource record */
(void) state; /* unused */
memset(&dnsstate, 0, sizeof(struct __res_state));
rv = res_ninit(&dnsstate);
assert_int_equal(rv, 0);
rv = res_nquery(&dnsstate, "www.cwrap.org", ns_c_in, ns_t_a,
answer, sizeof(answer));
assert_int_not_equal(rv, -1);
ns_initparse(answer, sizeof(answer), &handle);
/*
* The query must finish w/o an error, have one answer and the answer
* must be a parseable RR of type A and have the address that our
* test server sends.
*/
assert_int_equal(ns_msg_getflag(handle, ns_f_rcode), ns_r_noerror);
assert_int_equal(ns_msg_count(handle, ns_s_an), 1);
assert_int_equal(ns_parserr(&handle, ns_s_an, 0, &rr), 0);
assert_int_equal(ns_rr_type(rr), ns_t_a);
assert_non_null(inet_ntop(AF_INET, ns_rr_rdata(rr),
addr, sizeof(addr)));
assert_string_equal(addr, "127.0.10.10");
res_nclose(&dnsstate);
}
static void test_res_query(void **state)
{
int rv;
unsigned char answer[ANSIZE];
char addr[INET_ADDRSTRLEN];
ns_msg handle;
ns_rr rr; /* expanded resource record */
(void) state; /* unused */
rv = res_query("www.cwrap.org", ns_c_in, ns_t_a,
answer, sizeof(answer));
assert_int_not_equal(rv, -1);
ns_initparse(answer, sizeof(answer), &handle);
/*
* The query must finish w/o an error, have one answer and the answer
* must be a parseable RR of type A and have the address that our
* test server sends.
*/
assert_int_equal(ns_msg_getflag(handle, ns_f_rcode), ns_r_noerror);
assert_int_equal(ns_msg_count(handle, ns_s_an), 1);
assert_int_equal(ns_parserr(&handle, ns_s_an, 0, &rr), 0);
assert_int_equal(ns_rr_type(rr), ns_t_a);
assert_non_null(inet_ntop(AF_INET, ns_rr_rdata(rr),
addr, sizeof(addr)));
assert_string_equal(addr, "127.0.10.10");
res_close();
}
static void test_res_nsearch(void **state)
{
int rv;
struct __res_state dnsstate;
unsigned char answer[ANSIZE];
char addr[INET_ADDRSTRLEN];
ns_msg handle;
ns_rr rr; /* expanded resource record */
(void) state; /* unused */
memset(&dnsstate, 0, sizeof(struct __res_state));
rv = res_ninit(&dnsstate);
assert_int_equal(rv, 0);
rv = res_nsearch(&dnsstate, "www.cwrap.org", ns_c_in, ns_t_a,
answer, sizeof(answer));
assert_int_not_equal(rv, -1);
ns_initparse(answer, sizeof(answer), &handle);
/* The query must finish w/o an error, have one answer and the answer
* must be a parseable RR of type A and have the address that our
* test server sends
*/
assert_int_equal(ns_msg_getflag(handle, ns_f_rcode), ns_r_noerror);
assert_int_equal(ns_msg_count(handle, ns_s_an), 1);
assert_int_equal(ns_parserr(&handle, ns_s_an, 0, &rr), 0);
assert_int_equal(ns_rr_type(rr), ns_t_a);
assert_non_null(inet_ntop(AF_INET, ns_rr_rdata(rr),
addr, sizeof(addr)));
assert_string_equal(addr, "127.0.10.10");
res_nclose(&dnsstate);
}
static void test_res_search(void **state)
{
int rv;
unsigned char answer[ANSIZE];
char addr[INET_ADDRSTRLEN];
ns_msg handle;
ns_rr rr; /* expanded resource record */
(void) state; /* unused */
rv = res_search("www.cwrap.org", ns_c_in, ns_t_a,
answer, sizeof(answer));
assert_int_not_equal(rv, -1);
ns_initparse(answer, sizeof(answer), &handle);
/* The query must finish w/o an error, have one answer and the answer
* must be a parseable RR of type A and have the address that our
* test server sends
*/
assert_int_equal(ns_msg_getflag(handle, ns_f_rcode), ns_r_noerror);
assert_int_equal(ns_msg_count(handle, ns_s_an), 1);
assert_int_equal(ns_parserr(&handle, ns_s_an, 0, &rr), 0);
assert_int_equal(ns_rr_type(rr), ns_t_a);
assert_non_null(inet_ntop(AF_INET, ns_rr_rdata(rr),
addr, sizeof(addr)));
assert_string_equal(addr, "127.0.10.10");
res_close();
}
int main(void)
{
int rc;
const struct CMUnitTest res_tests[] = {
cmocka_unit_test_setup_teardown(test_res_nquery,
setup_dns_srv_ipv4,
teardown),
cmocka_unit_test_setup_teardown(test_res_query,
setup_dns_srv_ipv4,
teardown),
cmocka_unit_test_setup_teardown(test_res_nsearch,
setup_dns_srv_ipv4,
teardown),
cmocka_unit_test_setup_teardown(test_res_search,
setup_dns_srv_ipv4,
teardown),
};
rc = cmocka_run_group_tests(res_tests, NULL, NULL);
return rc;
}
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