Refactor project structure

2026-03-28 19:56:39 +11:00
parent 1d267378b2
commit 8a2e721058
511 changed files with 59 additions and 48 deletions
--- a/core/anslicensing/ntpclient.h
+++ b/core/anslicensing/ntpclient.h
@@ -0,0 +1,113 @@
+#pragma once
+
+#ifndef _WIN32
+#include <unistd.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#define INVALID_SOCKET (-1)
+#define SOCKET int
+#define SOCKET_ERROR (-1)
+#define closesocket close
+#endif
+
+#include <time.h>
+
+class NTPClient
+{
+public:
+	static time_t GetCurrentTimeUTC(const char * ntpserver = NULL)
+	{
+#ifdef _WIN32
+		WSADATA w;
+		int remote_length;
+#else
+		socklen_t remote_length;
+#endif
+		SOCKET sd = INVALID_SOCKET;
+		char ntp_buffer[48];
+		time_t current_time = 0;
+		struct hostent *hp;
+		struct sockaddr_in remote;
+		struct sockaddr_in local;
+		char host_name[256];
+		hostent * host = NULL;
+
+		do {
+#ifdef _WIN32
+			if (WSAStartup(MAKEWORD(2, 2), &w) != 0)
+				return 0;
+#endif
+
+			if ((sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET)
+				break;
+
+			memset((void *)&remote, '\0', sizeof(struct sockaddr_in));
+
+			remote.sin_family = AF_INET;
+			remote.sin_port = htons(123);
+
+			if ((host = gethostbyname((ntpserver) ? ntpserver : "time.windows.com")) == NULL)
+				break;
+
+			remote.sin_addr.s_addr = *(u_long *)host->h_addr_list[0];
+
+			memset((void *)&local, '\0', sizeof(local));
+
+			local.sin_family = AF_INET;
+			local.sin_port = htons(0);
+			local.sin_addr.s_addr = htonl(INADDR_ANY);
+
+			if (::bind(sd, (struct sockaddr *)&local, sizeof(local)) == SOCKET_ERROR)
+				break;
+
+			memset(ntp_buffer, 0, sizeof(ntp_buffer));
+			ntp_buffer[0] = 0x1B;
+
+			remote_length = sizeof(struct sockaddr_in);
+			
+			if (sendto(sd, ntp_buffer, sizeof(ntp_buffer), 0, (struct sockaddr *)&remote, remote_length) == -1)
+				break;
+
+			fd_set fds;
+
+			FD_ZERO(&fds);
+			FD_SET(sd, &fds);
+
+			timeval timeout;
+			timeout.tv_sec = 10;
+			timeout.tv_usec = 0;
+
+			if (select(1, &fds, NULL, NULL, &timeout) != 1)
+				break;
+
+			if (recvfrom(sd, ntp_buffer, sizeof(ntp_buffer), 0, (struct sockaddr *)&remote, &remote_length) < 0)
+				break;
+
+			unsigned int int_part = *(unsigned int *)(ntp_buffer + 40);
+			unsigned int fract_part = *(unsigned int *)(ntp_buffer + 44);
+
+			int_part = SwapEndianness(int_part);
+			
+			current_time = (time_t)(int_part -= 2208988800U);
+		}
+		while (0);
+
+		if (sd != INVALID_SOCKET)
+			closesocket(sd);
+		
+#ifdef _WIN32
+		WSACleanup();
+#endif
+
+		return current_time;
+	}
+
+	 static unsigned int SwapEndianness(unsigned int x)
+     {
+        return (unsigned int)(((x & 0x000000ff) << 24) +
+                        ((x & 0x0000ff00) << 8) +
+                        ((x & 0x00ff0000) >> 8) +
+                        ((x & 0xff000000) >> 24));
+     }
+};