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最新推荐文章于 2021-05-18 03:46:30 发布

原创最新推荐文章于 2021-05-18 03:46:30 发布 · 494 阅读

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CC 4.0 BY-SA版权

文章标签：

#server #socket #include #stream #windows #tcp

本文介绍了一个简单的TCP客户端程序实现过程，使用Winsock2库完成与服务器的连接、消息发送及接收功能。通过初始化Windows套接字库、创建客户端套接字、连接到指定服务器地址和端口等步骤，实现了客户端与服务器间的基础通信。

#include "stdafx.h"
#include <WINSOCK2.H>
#include <stdio.h>
#pragma comment(lib, "ws2_32.lib")
#define SERVER_ADDRESS "127.0.0.1"
#define PORT 5150
#define MSGSIZE 1024
int main(int argc, char* argv[])
{
WSADATA wsaData;
SOCKET sClient;
SOCKADDR_IN server;
char szMessage[MSGSIZE];
int ret;
// Initialize windows socket library
WSAStartup(0x0202, &wsaData);
// Create client socket
sClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
// Connect to server
memset(&server, 0, sizeof(SOCKADDR_IN));
server.sin_family = AF_INET;
server.sin_addr.S_un.S_addr = inet_addr(SERVER_ADDRESS);
server.sin_port = htons(PORT);
connect(sClient, (sockaddr*)&server, sizeof(SOCKADDR_IN));
while (TRUE)
{
  printf("Send:");
  gets(szMessage);
  // Send message
  send(sClient, szMessage, strlen(szMessage), 0);
  // Receive message
  ret = recv(sClient, szMessage, MSGSIZE, 0);
  szMessage[ret] = '\0';
  printf("Received [%d bytes]: '%s'\n", ret, szMessage);
}
// Clean up
closesocket(sClient);
WSACleanup();
return 0;
}