1 /* FWALK.C

     2  * 

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

     4  * All rights reserved.

     5  */

     6 

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

     8 

     9 /*

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

    11  * All rights reserved.

    12  *

    13  * Redistribution and use in source and binary forms are permitted

    14  * provided that the above copyright notice and this paragraph are

    15  * duplicated in all such forms and that any documentation,

    16  * advertising materials, and other materials related to such

    17  * distribution and use acknowledge that the software was developed

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

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

    20  * from this software without specific prior written permission.

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

    22  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED

    23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

    24  */

    25 

    26 #include <stdio_r.h>

    27 #include <stdlib_r.h>

    28 #include <errno.h>

    29 #include "LOCAL.H"

    30 

    31 int

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

    33 {

    34   register FILE *fp;

    35   register int n, ret = 0;

    36   register struct _glue *g;

    37 

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

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

    40       if (fp->_flags != 0)

    41 	ret |= (*function) (fp);

    42   return ret;

    43 }