C show milliseconds

from http://souptonuts.sourceforge.net/code/gettimeofday.c.html

/* C routine: sample gettimeofday with time in milliseconds
   mmc mchirico@users.sourceforge.net

   Downloads:
   http://prdownloads.sourceforge.net/cpearls/date_calc.tar.gz?download

*/
#include <sys/time.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>

int main(void)
{
  char buffer[30];
  struct timeval tv;

  time_t curtime;



  gettimeofday(&tv, NULL); 
  curtime=tv.tv_sec;

  strftime(buffer,30,"%m-%d-%Y  %T.",localtime(&curtime));
  printf("%s%ld\n",buffer,tv.tv_usec);

  return 0;



}