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#include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #define MAX_BUFFER_SIZE 1024 #define SERVER_PORT 8080 int main() { // ½¨Éè UDP socket int sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { perror("Failed to create socket"); exit(EXIT_FAILURE); } // °ó¶¨Ð§ÀÍÆ÷µØµã struct sockaddr_in server_addr, client_addr; memset(&server_addr, 0, sizeof(server_addr)); server_addr.sin_family = AF_INET; server_addr.sin_port = htons(SERVER_PORT); server_addr.sin_addr.s_addr = htonl(INADDR_ANY); if (bind(sock, (struct sockaddr*)&server_addr, sizeof(server_addr)) < 0) { perror("Failed to bind address"); exit(EXIT_FAILURE); } // ÎüÊÕÊý¾Ý char buffer[MAX_BUFFER_SIZE]; int addr_len = sizeof(client_addr); int recv_len = recvfrom(sock, buffer, MAX_BUFFER_SIZE, 0, (struct sockaddr*)&client_addr, &addr_len); if (recv_len < 0) { perror("Failed to receive data"); exit(EXIT_FAILURE); } printf("Received data from client: %s ", buffer); // ¹Ø±Õ socket close(sock); return 0; }
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