test/misc/fileseek.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <stdio.h>
   7 #include <proto/dos.h>
   8 #include <dos/dos.h>
   9 #include <stdlib.h>
  10
  11 int main()
  12 {
  13 FILE *fd;
  14 char buffer[32];
  15 int i;
  16 BPTR file;
  17
  18   fd = fopen( "seek.txt", "wb" );
  19   if ( !fd )
  20   {
  21     fprintf( stderr, "Could not write test file seek.txt\n" );
  22     exit(RETURN_ERROR);
  23   }
  24   fprintf( fd, "() does not work!\n" );
  25   fclose(fd);
  26
  27 /* fseek() */
  28   fd = fopen( "seek.txt", "rb" );
  29   if ( !fd )
  30   {
  31     fprintf( stderr, "Could not open test file seek.txt\n" );
  32     exit(RETURN_ERROR);
  33   }
  34   i = fread( buffer, 1, 1, fd );
  35 //printf("pos=%ld\n",ftell(fd));
  36   i += fread( &buffer[1], 1, 6, fd );
  37   if( i != 7 )
  38   {
  39     fprintf( stderr, "Wanted to fread() %d chars, but could only get %d!\n", 6, i-1 );
  40     exit(RETURN_ERROR);
  41   }
  42   fseek( fd, 4, SEEK_CUR );
  43   i = fread( &buffer[7], 1, 11, fd );
  44   buffer[7+i]=0;
  45   printf( "fseek%s", buffer );
  46   fclose(fd);
  47
  48 /* Seek() */
  49   file = Open( "seek.txt", MODE_OLDFILE );
  50   i = Read( file, buffer, 7 );
  51   Seek( file, 4, OFFSET_CURRENT );
  52   i += Read( file, &buffer[7], 11 );
  53   buffer[i] = 0;
  54   printf( "\nSeek%s", buffer );
  55
  56   return RETURN_OK;
  57 }