如何将recvfrom()缓冲区的值保存到数组中？

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

#define MAX_BUFFER_SIZE 1024

int main() {
    int sockfd;
    struct sockaddr_in serverAddr, clientAddr;
    socklen_t addrLen = sizeof(clientAddr);
    char buffer[MAX_BUFFER_SIZE];
    char dataArray[MAX_BUFFER_SIZE];

    // 创建socket
    sockfd = socket(AF_INET, SOCK_DGRAM, 0);
    if (sockfd < 0) {
        perror("socket creation failed");
        exit(EXIT_FAILURE);
    }

    memset(&serverAddr, 0, sizeof(serverAddr));
    memset(&clientAddr, 0, sizeof(clientAddr));

    // 设置服务器地址
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = INADDR_ANY;
    serverAddr.sin_port = htons(12345);

    // 绑定socket到服务器地址
    if (bind(sockfd, (const struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0) {
        perror("bind failed");
        exit(EXIT_FAILURE);
    }

    // 接收数据并保存到数组中
    int bytesRead = recvfrom(sockfd, buffer, sizeof(buffer), 0, (struct sockaddr *)&clientAddr, &addrLen);
    if (bytesRead < 0) {
        perror("recvfrom failed");
        exit(EXIT_FAILURE);
    }

    memcpy(dataArray, buffer, bytesRead); // 将缓冲区中的数据复制到数组中

    // 打印接收到的数据
    printf("Received data: %s\n", dataArray);

    close(sockfd);

    return 0;
}