tests/net/socket/socketpair/src/test_socketpair_fcntl.c

/*
 * Copyright (c) 2020 Friedt Professional Engineering Services, Inc
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <fcntl.h>

#include <zephyr/logging/log.h>
LOG_MODULE_DECLARE(net_test, CONFIG_NET_SOCKETS_LOG_LEVEL);

#include <stdio.h>
#include <string.h>
#include <zephyr/net/socket.h>
#include <zephyr/sys/util.h>
#include <zephyr/posix/unistd.h>

#include <zephyr/ztest_assert.h>

#undef read
#define read(fd, buf, len) zsock_recv(fd, buf, len, 0)

#undef write
#define write(fd, buf, len) zsock_send(fd, buf, len, 0)

void test_socketpair_fcntl(void)
{
	int res;
	int sv[2] = {-1, -1};
	int flags;

	res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv);
	zassert_equal(res, 0,
		"socketpair(AF_UNIX, SOCK_STREAM, 0, sv) failed");

	res = fcntl(sv[0], F_GETFL, 0);
	zassert_not_equal(res, -1,
		"fcntl(sv[0], F_GETFL) failed. errno: %d", errno);

	flags = res;
	zassert_equal(res & O_NONBLOCK, 0,
		"socketpair should block by default");

	res = fcntl(sv[0], F_SETFL, flags | O_NONBLOCK);
	zassert_not_equal(res, -1,
		"fcntl(sv[0], F_SETFL, flags | O_NONBLOCK) failed. errno: %d",
		errno);

	res = fcntl(sv[0], F_GETFL, 0);
	zassert_equal(res ^ flags, O_NONBLOCK, "expected O_NONBLOCK set");

	close(sv[0]);
	close(sv[1]);
}