如何使用UDP连接到我的pic32并从中获得答案

#include <plib.h>
#include "TCPIP Stack/TCPIP.h"

// 初始化网络堆栈
if (SYS NetworksInit() == -1) {
    // 错误处理
}

// 创建UDP套接字
SOCKET udpSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (udpSocket == INVALID_SOCKET) {
    // 错误处理
}

struct sockaddr_in serverAddr;
memset(&serverAddr, 0, sizeof(serverAddr));
serverAddr.sin_family = AF_INET;
serverAddr.sin_addr.s_addr = IP_ADDR_ANY; // 或者指定一个具体的IP地址
serverAddr.sin_port = htons(UDP_PORT);

if (bind(udpSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) {
    // 错误处理
}

char buffer[256];
struct sockaddr_in clientAddr;
int clientAddrLen = sizeof(clientAddr);

int bytesReceived = recvfrom(udpSocket, buffer, sizeof(buffer), 0, (struct sockaddr *)&clientAddr, &clientAddrLen);
if (bytesReceived == SOCKET_ERROR) {
    // 错误处理
} else {
    buffer[bytesReceived] = '\0';
    // 处理接收到的数据
}

char response[] = "Hello from Pic32!";
sendto(udpSocket, response, sizeof(response), 0, (struct sockaddr *)&clientAddr, clientAddrLen);

closesocket(udpSocket);