生成基于C语言的udp通信代码

好的，让我来为您生成基于C语言的UDP通信代码。以下是一个示例代码：

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>

#define BUF_SIZE 1024
#define PORT 8888

int main() {
    int server_fd, client_fd;
    struct sockaddr_in server_addr, client_addr;
    char buffer[BUF_SIZE];

    // 创建socket
    server_fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (server_fd == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    // 设置socket地址
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = INADDR_ANY;
    server_addr.sin_port = htons(PORT);

    // 绑定socket到地址
    if (bind(server_fd, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
        perror("bind");
        exit(EXIT_FAILURE);
    }

    // 接收客户端数据
    socklen_t client_addr_len = sizeof(client_addr);
    int data_len = recvfrom(server_fd, buffer, BUF_SIZE, 0, (struct sockaddr*)&client_addr, &client_addr_len);
    if (data_len == -1) {
        perror("recvfrom");
        exit(EXIT_FAILURE);
    }

    printf("Received data: %s\n", buffer);

    // 发送数据给客户端
    char* msg = "Hello, client!";
    int msg_len = strlen(msg);
    int bytes_sent = sendto(server_fd, msg, msg_len, 0, (struct sockaddr*)&client_addr, client_addr_len);
    if (bytes_sent == -1) {
        perror("sendto");
        exit(EXIT_FAILURE);
    }

    printf("Sent data to client.\n");

    close(server_fd);
    return 0;
}

该代码创建了一个UDP服务器，监听8888端口，并接收客户端发送的数据，并回复一条消息。您可以将代码复制，并粘贴到您的C文件中，并根据您的实际需求进行修改。