/* FWALK.C

  * 

  * Portions Copyright (c) 1990-1999 Nokia Corporation and/or its subsidiary(-ies).

  * All rights reserved.

  */

 /* No user fns here.  Pesch 15apr92. */

 /*

  * Copyright (c) 1990 The Regents of the University of California.

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms are permitted

  * provided that the above copyright notice and this paragraph are

  * duplicated in all such forms and that any documentation,

  * advertising materials, and other materials related to such

  * distribution and use acknowledge that the software was developed

  * by the University of California, Berkeley.  The name of the

  * University may not be used to endorse or promote products derived

  * from this software without specific prior written permission.

  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR

  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED

  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

  */

 #include <stdio_r.h>

 #include <stdlib_r.h>

 #include <errno.h>

 #include "LOCAL.H"

 int

 _fwalk (struct _reent *ptr, register int (*function) (FILE *))

 {

   register FILE *fp;

   register int n, ret = 0;

   register struct _glue *g;

   for (g = &ptr->__sglue; g != NULL; g = g->_next)

     for (fp = g->_iobs, n = g->_niobs; --n >= 0; fp++)

       if (fp->_flags != 0)

 	ret |= (*function) (fp);

   return ret;

 }