#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>

#include "config.h"
#include "torture.h"

#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>

static void setup_echo_srv_tcp_ipv4(void **state)
{
	torture_setup_echo_srv_tcp_ipv4(state);
}

static void setup_echo_srv_tcp_ipv6(void **state)
{
	torture_setup_echo_srv_tcp_ipv6(state);
}

static void teardown(void **state)
{
	torture_teardown_echo_srv(state);
}

static void test_bind_ipv4(void **state)
{
	struct sockaddr_in sin;
	socklen_t slen = sizeof(struct sockaddr_in);
	int rc;
	int s;

	(void) state; /* unused */

	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	assert_return_code(s, errno);

	ZERO_STRUCT(sin);
	sin.sin_family = AF_INET;

	rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr);
	assert_int_equal(rc, 1);

	rc = bind(s, (struct sockaddr *)&sin, slen);
	assert_return_code(rc, errno);

	ZERO_STRUCT(sin);
	sin.sin_family = AF_INET;
	sin.sin_port = htons(torture_server_port());
	rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr);
	assert_int_equal(rc, 1);

	rc = connect(s, (struct sockaddr *)&sin, slen);
	assert_return_code(rc, errno);

	close(s);
}

#ifdef HAVE_IPV6
static void test_bind_on_ipv6_sock(void **state)
{
	struct sockaddr_in sin;
	socklen_t slen = sizeof(struct sockaddr_in);
	int rc;
	int s;

	(void) state; /* unused */

	s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
	assert_return_code(s, errno);

	ZERO_STRUCT(sin);
	sin.sin_family = AF_INET;

	rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr);
	assert_int_equal(rc, 1);

	rc = bind(s, (struct sockaddr *)&sin, slen);
	assert_int_equal(rc, -1);
	assert_int_equal(errno, EAFNOSUPPORT);

	close(s);
}
#endif /* HAVE_IPV6 */

int main(void) {
	int rc;

	const UnitTest tests[] = {
		unit_test_setup_teardown(test_bind_ipv4,
					 setup_echo_srv_tcp_ipv4,
					 teardown),
#ifdef HAVE_IPV6
		unit_test_setup_teardown(test_bind_on_ipv6_sock,
					 setup_echo_srv_tcp_ipv6,
					 teardown),
#endif /* HAVE_IPV6 */
	};

	rc = run_tests(tests);

	return rc;
}