#define ORIG "/local/disk/bigfile"
#define NEW  "/local/disk/bigfile.link"

#include <stdio.h>
#include <unistd.h>

main()
{
  FILE *fp;
  int rc, wrc, j, n;

  printf("Starting out test program to write\n");

  if((fp=fopen64(ORIG,"w"))==NULL) {
     printf("Error opening output file in write mode\n");
     exit();
     }

  /* 40 char string for 40 bytes per line */
  /* for build file sizes of certain meg use this chart */
  /* set value for n accordingly                        */
  /*         meg size         loop index number         */
  /*        ----------       -------------------        */
  /*           2m                 50000                 */
  /*           20m                500000                */
  /*           200m               5000000               */
  /*           1.2g               30000000              */
  /*           2.4g               60000000              */
  /*                                                    */
  n=60000000;
  for ( j=1; j <= n; j++) {
  wrc=fprintf(fp,"hello world this is line number %8d\n", j);
  if (wrc != 41) {
     printf("problem with writing file, exiting w/rc: %d\n", wrc);
     exit(wrc);
     }
  }

  /* close the file */
  fclose(fp);

  rc=link(ORIG,NEW);
  printf("link rc: %d\n",rc);
  
  rc=unlink(ORIG);
  printf("unlink rc: %d\n",rc);
}