1//===-- Unittests for sendto/recvfrom -------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/sys/socket/recvfrom.h"
10#include "src/sys/socket/sendto.h"
11#include "src/sys/socket/socketpair.h"
12
13#include "src/unistd/close.h"
14
15#include "test/UnitTest/ErrnoCheckingTest.h"
16#include "test/UnitTest/ErrnoSetterMatcher.h"
17#include "test/UnitTest/Test.h"
18
19#include <sys/socket.h> // For AF_UNIX and SOCK_DGRAM
20
21using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
22using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
23using LlvmLibcSendToRecvFromTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;
24
25TEST_F(LlvmLibcSendToRecvFromTest, SucceedsWithSocketPair) {
26 const char TEST_MESSAGE[] = "connection successful";
27 const size_t MESSAGE_LEN = sizeof(TEST_MESSAGE);
28
29 int sockpair[2] = {0, 0};
30
31 ASSERT_THAT(LIBC_NAMESPACE::socketpair(AF_UNIX, SOCK_STREAM, 0, sockpair),
32 Succeeds(0));
33
34 ASSERT_THAT(LIBC_NAMESPACE::sendto(sockpair[0], TEST_MESSAGE, MESSAGE_LEN, 0,
35 nullptr, 0),
36 Succeeds(static_cast<ssize_t>(MESSAGE_LEN)));
37
38 char buffer[256];
39
40 ASSERT_THAT(LIBC_NAMESPACE::recvfrom(sockpair[1], buffer, sizeof(buffer), 0,
41 nullptr, 0),
42 Succeeds(static_cast<ssize_t>(MESSAGE_LEN)));
43
44 ASSERT_STREQ(buffer, TEST_MESSAGE);
45
46 // close both ends of the socket
47 ASSERT_THAT(LIBC_NAMESPACE::close(sockpair[0]), Succeeds(0));
48 ASSERT_THAT(LIBC_NAMESPACE::close(sockpair[1]), Succeeds(0));
49}
50
51TEST_F(LlvmLibcSendToRecvFromTest, SendToFails) {
52 const char TEST_MESSAGE[] = "connection terminated";
53 const size_t MESSAGE_LEN = sizeof(TEST_MESSAGE);
54
55 ASSERT_THAT(
56 LIBC_NAMESPACE::sendto(-1, TEST_MESSAGE, MESSAGE_LEN, 0, nullptr, 0),
57 Fails(EBADF));
58}
59
60TEST_F(LlvmLibcSendToRecvFromTest, RecvFromFails) {
61 char buffer[256];
62
63 ASSERT_THAT(
64 LIBC_NAMESPACE::recvfrom(-1, buffer, sizeof(buffer), 0, nullptr, 0),
65 Fails(EBADF));
66}
67

source code of libc/test/src/sys/socket/linux/sendto_recvfrom_test.cpp