compiler/clib/fileno.c

   1 /*
   2     Copyright © 1995-2003, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     ANSI C function fileno().
   6 */
   7
   8 #include <errno.h>
   9
  10 /*****************************************************************************
  11
  12     NAME */
  13 #include <stdio.h>
  14
  15         int fileno (
  16
  17 /*  SYNOPSIS */
  18         FILE *stream)
  19
  20 /*  FUNCTION
  21         Returns the descriptor associated with the stream
  22
  23     INPUTS
  24         strem - the stream to get the descriptor from
  25
  26     RESULT
  27         The integer descriptor
  28
  29     NOTES
  30
  31     EXAMPLE
  32
  33     BUGS
  34
  35     SEE ALSO
  36         open()
  37
  38     INTERNALS
  39
  40 ******************************************************************************/
  41 {
  42     if (!stream) /* safety check */
  43     {
  44         errno = EFAULT;
  45         return -1;
  46     }
  47     return stream->fd;
  48 }