xref: /illumos-gate/usr/src/cmd/sendmail/libsm/fwalk.c (revision 2a8bcb4efb45d99ac41c94a75c396b362c414f7f)
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 #include <sm/gen.h>
16 SM_RCSID("@(#)$Id: fwalk.c,v 1.19 2001/03/02 03:22:18 ca Exp $")
17 #include <errno.h>
18 #include <sm/io.h>
19 #include "local.h"
20 #include "glue.h"
21 
22 /*
23 **  SM_FWALK -- apply a function to all found-open file pointers
24 **
25 **	Parameters:
26 **		function -- a function vector to be applied
27 **		timeout -- time to complete actions (milliseconds)
28 **
29 **	Returns:
30 **		The (binary) OR'd result of each function call
31 */
32 
33 int
34 sm_fwalk(function, timeout)
35 	int (*function) __P((SM_FILE_T *, int *));
36 	int *timeout;
37 {
38 	register SM_FILE_T *fp;
39 	register int n, ret;
40 	register struct sm_glue *g;
41 	int fptimeout;
42 
43 	ret = 0;
44 	for (g = &smglue; g != NULL; g = g->gl_next)
45 	{
46 		for (fp = g->gl_iobs, n = g->gl_niobs; --n >= 0; fp++)
47 		{
48 			if (fp->f_flags != 0)
49 			{
50 				if (*timeout == SM_TIME_DEFAULT)
51 					fptimeout = fp->f_timeout;
52 				else
53 					fptimeout = *timeout;
54 				if (fptimeout == SM_TIME_IMMEDIATE)
55 					continue; /* skip it */
56 				ret |= (*function)(fp, &fptimeout);
57 			}
58 		}
59 	}
60 	return ret;
61 }
62