linux-cpp-chatroom/Experiment_1/client.cpp

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#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/shm.h>
#include <iostream>
using namespace std;
int main()
{
// 定义客户端 sockfd 套接字描述符
int sock_cli = socket(AF_INET, SOCK_STREAM, 0);
// 定义 sockaddr_in
struct sockaddr_in servaddr;
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET; // TCP/IP 协议族
servaddr.sin_port = htons(8023); // 服务器端口
servaddr.sin_addr.s_addr = inet_addr("127.0.0.1"); // 服务器 ip
// connect 同远程服务器建立主动连接成功时返回0若连接失败返回1
if (connect(sock_cli, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0)
{
perror("connect");
exit(1);
}
cout << "连接服务器成功!\n";
char sendbuf[100]; // 发送缓冲数组
char recvbuf[100]; // 接收缓冲数组
while (1)
{
memset(sendbuf, 0, sizeof(sendbuf));
cin >> sendbuf; // 向发送缓冲数组写入数据
send(sock_cli, sendbuf, sizeof(sendbuf), 0); // 发送数据
if (strcmp(sendbuf, "exit") == 0)
break; // 如果发送字符为exit则跳出发送循环
}
close(sock_cli); // 关闭发送套接字描述符
return 0;
}