xref: /illumos-gate/usr/src/cmd/sendmail/libsm/fwalk.c (revision 508a0e8cf1600b06c1f7361ad76e736710d3fdf8)
1 /*
2  * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
3  *      All rights reserved.
4  * Copyright (c) 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Chris Torek.
9  *
10  * By using this file, you agree to the terms and conditions set
11  * forth in the LICENSE file which can be found at the top level of
12  * the sendmail distribution.
13  */
14 
15 #pragma ident	"%Z%%M%	%I%	%E% SMI"
16 
17 #include <sm/gen.h>
18 SM_RCSID("@(#)$Id: fwalk.c,v 1.19 2001/03/02 03:22:18 ca Exp $")
19 #include <errno.h>
20 #include <sm/io.h>
21 #include "local.h"
22 #include "glue.h"
23 
24 /*
25 **  SM_FWALK -- apply a function to all found-open file pointers
26 **
27 **	Parameters:
28 **		function -- a function vector to be applied
29 **		timeout -- time to complete actions (milliseconds)
30 **
31 **	Returns:
32 **		The (binary) OR'd result of each function call
33 */
34 
35 int
36 sm_fwalk(function, timeout)
37 	int (*function) __P((SM_FILE_T *, int *));
38 	int *timeout;
39 {
40 	register SM_FILE_T *fp;
41 	register int n, ret;
42 	register struct sm_glue *g;
43 	int fptimeout;
44 
45 	ret = 0;
46 	for (g = &smglue; g != NULL; g = g->gl_next)
47 	{
48 		for (fp = g->gl_iobs, n = g->gl_niobs; --n >= 0; fp++)
49 		{
50 			if (fp->f_flags != 0)
51 			{
52 				if (*timeout == SM_TIME_DEFAULT)
53 					fptimeout = fp->f_timeout;
54 				else
55 					fptimeout = *timeout;
56 				if (fptimeout == SM_TIME_IMMEDIATE)
57 					continue; /* skip it */
58 				ret |= (*function)(fp, &fptimeout);
59 			}
60 		}
61 	}
62 	return ret;
63 }
64