编写代码:基于TCP通信,编写服务器端代码运行在嵌入式Linux实验平台中,客户端代码运行在Ubuntu中,实现如下功能: (a) 客户端将小组中所有成员的学号与姓名发送给服务器端,服务器端收到数据后返回给客户端;
时间: 2024-02-13 19:04:23 浏览: 59
基于TCP协议的网络客户端及服务端的编写
以下是基于TCP通信的服务器端代码示例,可以在嵌入式Linux实验平台中运行。客户端代码示例可以在Ubuntu中运行。
```
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <unistd.h>
#define PORT 8080
int main(int argc, char const *argv[]) {
int server_fd, new_socket, valread;
struct sockaddr_in address;
int opt = 1;
int addrlen = sizeof(address);
char buffer[1024] = {0};
char *hello = "Hello from server";
// 创建服务器端socket
if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
perror("socket failed");
exit(EXIT_FAILURE);
}
// 设置socket选项,允许地址和端口复用
if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
perror("setsockopt");
exit(EXIT_FAILURE);
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(PORT);
// 将socket绑定到指定端口
if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
perror("bind failed");
exit(EXIT_FAILURE);
}
// 监听连接请求
if (listen(server_fd, 3) < 0) {
perror("listen");
exit(EXIT_FAILURE);
}
// 接受连接请求
if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < 0) {
perror("accept");
exit(EXIT_FAILURE);
}
// 读取客户端发送的数据
valread = read(new_socket, buffer, 1024);
printf("%s\n", buffer);
// 发送数据给客户端
send(new_socket, hello, strlen(hello), 0);
printf("Hello message sent\n");
return 0;
}
```
客户端代码示例:
```
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#define PORT 8080
int main(int argc, char const *argv[]) {
struct sockaddr_in address;
int sock = 0, valread;
struct sockaddr_in serv_addr;
char *hello = "Hello from client";
char buffer[1024] = {0};
// 创建客户端socket
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("\n Socket creation error \n");
return -1;
}
memset(&serv_addr, '0', sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
// 将IP地址转换为网络字节序
if(inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr)<=0) {
printf("\nInvalid address/ Address not supported \n");
return -1;
}
// 连接服务器
if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
printf("\nConnection Failed \n");
return -1;
}
// 发送数据给服务器
send(sock, hello, strlen(hello), 0);
printf("Hello message sent\n");
// 读取服务器返回的数据
valread = read(sock, buffer, 1024);
printf("%s\n", buffer);
return 0;
}
```
这些示例代码可以实现客户端将小组中所有成员的学号与姓名发送给服务器端,服务器端收到数据后返回给客户端。您可以根据您的实际需求进行修改和优化。
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