#include "time.h"#define DELTA (134774LL*86400)#define SCALE (10000000LL)unsigned long windows_time_to_unix_time(LARGE_INTEGER time){	/* 	 * Windows' system time is a count of 100-nanosecond intervals since January 1, 1601. 	 * System time is typically updated approximately every ten milliseconds. This value 	 * is computed for the GMT time zone. 	 */	/* 	 * Convert to seconds.	 */	time.QuadPart = time.QuadPart / SCALE;	/*	 * Shift to 1970. 134774*86400 is the number of seconds between January 1, 1601 and	 * January 1, 1970.	 */  	time.QuadPart -= DELTA; 	return time.QuadPart;}LARGE_INTEGER unix_time_to_windows_time(unsigned long time){	LARGE_INTEGER ret_time;	ret_time.QuadPart = time;	ret_time.QuadPart += DELTA;	ret_time.QuadPart *= SCALE;	return ret_time;}