xref: /illumos-gate/usr/src/contrib/ast/src/lib/libast/stdio/fcloseall.c (revision b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f)
1*b30d1939SAndy Fiddaman /***********************************************************************
2*b30d1939SAndy Fiddaman *                                                                      *
3*b30d1939SAndy Fiddaman *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*b30d1939SAndy Fiddaman *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
7*b30d1939SAndy Fiddaman *                    by AT&T Intellectual Property                     *
8*b30d1939SAndy Fiddaman *                                                                      *
9*b30d1939SAndy Fiddaman *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12*b30d1939SAndy Fiddaman *                                                                      *
13*b30d1939SAndy Fiddaman *              Information and Software Systems Research               *
14*b30d1939SAndy Fiddaman *                            AT&T Research                             *
15*b30d1939SAndy Fiddaman *                           Florham Park NJ                            *
16*b30d1939SAndy Fiddaman *                                                                      *
17*b30d1939SAndy Fiddaman *                 Glenn Fowler <gsf@research.att.com>                  *
18*b30d1939SAndy Fiddaman *                  David Korn <dgk@research.att.com>                   *
19*b30d1939SAndy Fiddaman *                   Phong Vo <kpv@research.att.com>                    *
20*b30d1939SAndy Fiddaman *                                                                      *
21*b30d1939SAndy Fiddaman ***********************************************************************/
22*b30d1939SAndy Fiddaman #pragma prototyped
23*b30d1939SAndy Fiddaman 
24*b30d1939SAndy Fiddaman #include "stdhdr.h"
25*b30d1939SAndy Fiddaman 
26*b30d1939SAndy Fiddaman #define MAXLOOP		3
27*b30d1939SAndy Fiddaman 
28*b30d1939SAndy Fiddaman int
fcloseall(void)29*b30d1939SAndy Fiddaman fcloseall(void)
30*b30d1939SAndy Fiddaman {
31*b30d1939SAndy Fiddaman 	Sfpool_t*	p;
32*b30d1939SAndy Fiddaman 	Sfpool_t*	next;
33*b30d1939SAndy Fiddaman 	int		n;
34*b30d1939SAndy Fiddaman 	int		nclose;
35*b30d1939SAndy Fiddaman 	int		count;
36*b30d1939SAndy Fiddaman 	int		loop;
37*b30d1939SAndy Fiddaman 
38*b30d1939SAndy Fiddaman 	STDIO_INT(0, "fcloseall", int, (void), ())
39*b30d1939SAndy Fiddaman 
40*b30d1939SAndy Fiddaman 	for(loop = 0; loop < MAXLOOP; ++loop)
41*b30d1939SAndy Fiddaman 	{	nclose = count = 0;
42*b30d1939SAndy Fiddaman 		for(p = &_Sfpool; p; p = next)
43*b30d1939SAndy Fiddaman 		{	/* find the next legitimate pool */
44*b30d1939SAndy Fiddaman 			for(next = p->next; next; next = next->next)
45*b30d1939SAndy Fiddaman 				if(next->n_sf > 0)
46*b30d1939SAndy Fiddaman 					break;
47*b30d1939SAndy Fiddaman 			for(n = 0; n < ((p == &_Sfpool) ? p->n_sf : 1); ++n)
48*b30d1939SAndy Fiddaman 			{	count += 1;
49*b30d1939SAndy Fiddaman 				if(sfclose(p->sf[n]) >= 0)
50*b30d1939SAndy Fiddaman 					nclose += 1;
51*b30d1939SAndy Fiddaman 			}
52*b30d1939SAndy Fiddaman 		}
53*b30d1939SAndy Fiddaman 		if(nclose == count)
54*b30d1939SAndy Fiddaman 			break;
55*b30d1939SAndy Fiddaman 	}
56*b30d1939SAndy Fiddaman 	return 0; /* always return 0 per GNU */
57*b30d1939SAndy Fiddaman }
58