/* link.c 1.0.1 (4 Jan 1998)              */
/* Adam M. Costello <amc@cs.berkeley.edu> */

/* link <existing> <new>                            */
/*                                                  */
/* Tries to create the file <new> as a hard link to */
/* <existing>.  Returns 0 on success, 1 if <new>    */
/* already exists, 2 for other failures.  The only  */
/* output is an error message on stderr if the exit */
/* status is 2 (not 1).                             */


#include <unistd.h>
#include <errno.h>

int main(int argc, char **argv)
{
  int r;

  if (argc != 3) return 2;

  r = link(argv[1], argv[2]);
  if (r != -1) return 0;

  if (errno == EEXIST) return 1;

  perror(argv[0]);
  return 2;
}