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/*
* Copyright (C) 2022 Amazon.com Inc. or its affiliates. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include <arpa/inet.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <unistd.h>
#ifdef __wasi__
#include <wasi_socket_ext.h>
#endif
int
main(int argc, char *argv[])
{
int socket_fd;
struct sockaddr_in addr;
struct timeval tv = { 0, 1 };
const int snd_buf_len = 8;
const int data_buf_len = 1000000;
char *buffer = (char *)malloc(sizeof(char) * data_buf_len);
int result;
socklen_t opt_len = sizeof(snd_buf_len);
struct timeval snd_start_time, snd_end_time;
int bool_opt = 1;
if (buffer == NULL) {
perror("Allocation failed, please re-run with larger heap size");
return EXIT_FAILURE;
}
/* 127.0.0.1:1234 */
addr.sin_family = AF_INET;
addr.sin_port = htons(1234);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror("Create socket failed");
goto fail1;
}
if (setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR, &bool_opt,
sizeof(bool_opt))
== -1) {
perror("Failed setting SO_REUSEADDR");
goto fail2;
}
if (setsockopt(socket_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) == -1) {
perror("Failed setting SO_RCVTIMEO");
goto fail2;
}
if (setsockopt(socket_fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)) == -1) {
perror("Failed setting SO_SNDTIMEO");
goto fail2;
}
if (setsockopt(socket_fd, SOL_SOCKET, SO_SNDBUF, &data_buf_len,
sizeof(data_buf_len))
== -1) {
perror("Failed setting SO_SNDBUF");
goto fail2;
}
if (connect(socket_fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
perror("Connect failed");
goto fail2;
}
if (getsockopt(socket_fd, SOL_SOCKET, SO_SNDBUF, (void *)&data_buf_len,
&opt_len)
== -1) {
perror("Failed getting SO_SNDBUF");
goto fail2;
}
printf("Waiting on recv, which should timeout\n");
result = recv(socket_fd, buffer, 1, 0);
if (result != -1 || errno != EAGAIN) {
perror("Recv did not timeout as expected");
goto fail2;
}
printf("Waiting on send, which should timeout\n");
gettimeofday(&snd_start_time, NULL);
result = send(socket_fd, buffer, data_buf_len, 0);
gettimeofday(&snd_end_time, NULL);
if (result >= data_buf_len
|| snd_start_time.tv_sec != snd_end_time.tv_sec) {
perror("Send did not timeout as expected");
goto fail2;
}
printf("Success. Closing socket \n");
close(socket_fd);
free(buffer);
return EXIT_SUCCESS;
fail2:
close(socket_fd);
fail1:
free(buffer);
return EXIT_FAILURE;
}
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