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wasm-micro-runtime/samples/socket-api/wasm-src/tcp_client.c
Wenyong Huang 9c87a1ee17
Implement part of Berkeley Socket API for libc-wasi (#1036)
Refer to [Networking API design](https://github.com/WebAssembly/WASI/issues/370)
and [feat(socket): berkeley socket API v2](https://github.com/WebAssembly/WASI/pull/459):

- Support the socket API of synchronous mode, including `socket/bind/listen/accept/send/recv/close/shutdown`,
    the asynchronous mode isn't supported yet.
- Support adding `--addr-pool=<pool1,pool2,..>` argument for command line to identify the valid ip address range
- Add socket-api sample and update the document
2022-03-10 15:13:38 +08:00

63 lines
1.5 KiB
C

/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include <arpa/inet.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#ifdef __wasi__
#include <wasi_socket_ext.h>
#endif
int
main(int argc, char *argv[])
{
int socket_fd, ret, total_size = 0;
char buffer[1024] = { 0 };
struct sockaddr_in server_address = { 0 };
printf("[Client] Create socket\n");
socket_fd = socket(AF_INET, SOCK_STREAM, 0);
if (socket_fd == -1) {
perror("Create socket failed");
return EXIT_FAILURE;
}
/* 127.0.0.1:1234 */
server_address.sin_family = AF_INET;
server_address.sin_port = htons(1234);
server_address.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
printf("[Client] Connect socket\n");
if (connect(socket_fd, (struct sockaddr *)&server_address,
sizeof(server_address))
== -1) {
perror("Connect failed");
close(socket_fd);
return EXIT_FAILURE;
}
printf("[Client] Client receive\n");
while (1) {
ret = recv(socket_fd, buffer + total_size, sizeof(buffer) - total_size,
0);
if (ret <= 0)
break;
total_size += ret;
}
printf("[Client] %d bytes received:\n", total_size);
if (total_size > 0) {
printf("Buffer recieved:\n%s\n", buffer);
}
close(socket_fd);
printf("[Client] BYE \n");
return EXIT_SUCCESS;
}