test/setfilesize.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <exec/types.h>
   7 #include <dos/dosextens.h>
   8 #include <dos/bptr.h>
   9 #include <proto/exec.h>
  10 #include <proto/dos.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <stdlib.h>
  14
  15 int main(int argc, char **argv) {
  16     BPTR fh;
  17     LONG size;
  18
  19     if (argc != 3) {
  20         printf("usage: %s filename newsize\n", argv[0]);
  21         return 1;
  22     }
  23
  24     fh = Open(argv[1], MODE_READWRITE);
  25     if (fh == BNULL) {
  26         PrintFault(IoErr(), "SetFileSize");
  27         return 0;
  28     }
  29
  30     size = SetFileSize(fh, atol(argv[2]), OFFSET_BEGINNING);
  31     if (size < 0) {
  32         PrintFault(IoErr(), "SetFileSize");
  33         Close(fh);
  34         return 0;
  35     }
  36
  37     Printf("New size is %ld bytes\n", size);
  38
  39     Close(fh);
  40
  41     return 0;
  42 }