#include <stdio.h>
#include <string.h>

#define BUF_LEN 4

int  main(int argc, char**argv)
{
  char buf[BUF_LEN];

  if (argc > 1)
    {
      printf("buffer length: %d %d\n", BUF_LEN, strlen(argv[1]));
	    strcpy(buf,argv[1]);
    }
  printf("% s\n", buf);
  return 0;
}