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//===-- Unittests for sendmsg/recvmsg -------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/sys/socket/recvmsg.h"
#include "src/sys/socket/sendmsg.h"
#include "src/sys/socket/socketpair.h"
#include "src/unistd/close.h"
#include "test/UnitTest/ErrnoCheckingTest.h"
#include "test/UnitTest/ErrnoSetterMatcher.h"
#include "test/UnitTest/Test.h"
#include <sys/socket.h> // For AF_UNIX and SOCK_DGRAM
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
using LlvmLibcSendMsgRecvMsgTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;
TEST_F(LlvmLibcSendMsgRecvMsgTest, SucceedsWithSocketPair) {
const char TEST_MESSAGE[] = "connection successful";
const size_t MESSAGE_LEN = sizeof(TEST_MESSAGE);
int sockpair[2] = {0, 0};
ASSERT_THAT(LIBC_NAMESPACE::socketpair(AF_UNIX, SOCK_STREAM, 0, sockpair),
Succeeds(0));
iovec send_msg_text;
send_msg_text.iov_base =
reinterpret_cast<void *>(const_cast<char *>(TEST_MESSAGE));
send_msg_text.iov_len = MESSAGE_LEN;
msghdr send_message;
send_message.msg_name = nullptr;
send_message.msg_namelen = 0;
send_message.msg_iov = &send_msg_text;
send_message.msg_iovlen = 1;
send_message.msg_control = nullptr;
send_message.msg_controllen = 0;
send_message.msg_flags = 0;
ASSERT_THAT(LIBC_NAMESPACE::sendmsg(sockpair[0], &send_message, 0),
Succeeds(static_cast<ssize_t>(MESSAGE_LEN)));
char buffer[256];
iovec recv_msg_text;
recv_msg_text.iov_base = reinterpret_cast<void *>(buffer);
recv_msg_text.iov_len = sizeof(buffer);
msghdr recv_message;
recv_message.msg_name = nullptr;
recv_message.msg_namelen = 0;
recv_message.msg_iov = &recv_msg_text;
recv_message.msg_iovlen = 1;
recv_message.msg_control = nullptr;
recv_message.msg_controllen = 0;
recv_message.msg_flags = 0;
ASSERT_THAT(LIBC_NAMESPACE::recvmsg(sockpair[1], &recv_message, 0),
Succeeds(static_cast<ssize_t>(MESSAGE_LEN)));
ASSERT_STREQ(buffer, TEST_MESSAGE);
// close both ends of the socket
ASSERT_THAT(LIBC_NAMESPACE::close(sockpair[0]), Succeeds(0));
ASSERT_THAT(LIBC_NAMESPACE::close(sockpair[1]), Succeeds(0));
}
TEST_F(LlvmLibcSendMsgRecvMsgTest, SendFails) {
const char TEST_MESSAGE[] = "connection terminated";
const size_t MESSAGE_LEN = sizeof(TEST_MESSAGE);
iovec send_msg_text;
send_msg_text.iov_base =
reinterpret_cast<void *>(const_cast<char *>(TEST_MESSAGE));
send_msg_text.iov_len = MESSAGE_LEN;
msghdr send_message;
send_message.msg_name = nullptr;
send_message.msg_namelen = 0;
send_message.msg_iov = &send_msg_text;
send_message.msg_iovlen = 1;
send_message.msg_control = nullptr;
send_message.msg_controllen = 0;
send_message.msg_flags = 0;
ASSERT_THAT(LIBC_NAMESPACE::sendmsg(-1, &send_message, 0), Fails(EBADF));
}
TEST_F(LlvmLibcSendMsgRecvMsgTest, RecvFails) {
char buffer[256];
iovec recv_msg_text;
recv_msg_text.iov_base = reinterpret_cast<void *>(buffer);
recv_msg_text.iov_len = sizeof(buffer);
msghdr recv_message;
recv_message.msg_name = nullptr;
recv_message.msg_namelen = 0;
recv_message.msg_iov = &recv_msg_text;
recv_message.msg_iovlen = 1;
recv_message.msg_control = nullptr;
recv_message.msg_controllen = 0;
recv_message.msg_flags = 0;
ASSERT_THAT(LIBC_NAMESPACE::recvmsg(-1, &recv_message, 0), Fails(EBADF));
}
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