/* This version should work correctly with PowerNow
   and other schemes that vary CPU frequency.
   Link to ws2_32.lib kernel32.lib */
#include <windows.h>
#include <winsock.h>
#include <stdio.h>
#include <time.h>

#define BSIZ 26

main(int argc,char *argv[]){
LARGE_INTEGER lpc1,lpc2,lpf; char cmdln[500],*p;
int i; char hostname[50];
LPWSADATA lpWSAData;
time_t time_s,time_f; 
wchar_t buf_s[BSIZ], buf_f[BSIZ]; errno_t err;
WORD wVersionRequested;
WSADATA wsaData;

QueryPerformanceCounter(&lpc1);
QueryPerformanceFrequency(&lpf);
p=cmdln; strcpy(cmdln,argv[1]);
p+=strlen(argv[1]);
for(i=2; i<argc; i++){
	sprintf(p," %s",argv[i]);
	p+=strlen(argv[i])+1;
	}
*p='\0';
time( &time_s ); err = _wctime_s( buf_s, BSIZ, &time_s );
system(cmdln);
QueryPerformanceCounter(&lpc2);
wVersionRequested = MAKEWORD(2, 2);
i = WSAStartup(wVersionRequested, &wsaData);
i = gethostname(hostname,48);
if(i)printf("Gethostname returned %d\n",i);
printf("%s Elapsed time: %8.3f s\n",
	hostname,(double)(lpc2.QuadPart-lpc1.QuadPart)
	/(double)(lpf.QuadPart));
time( &time_f ); err = _wctime_s( buf_f, BSIZ, &time_f );
wprintf_s( L"Command : %hs\n  S: %Ts  F: %Ts", // time strings end with NL
   cmdln, buf_s, buf_f );
}