xref: /onnv-gate/usr/src/lib/libast/common/tm/tmxtouch.c (revision 4887:feebf9260c2e)
1*4887Schin /***********************************************************************
2*4887Schin *                                                                      *
3*4887Schin *               This software is part of the ast package               *
4*4887Schin *           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
5*4887Schin *                      and is licensed under the                       *
6*4887Schin *                  Common Public License, Version 1.0                  *
7*4887Schin *                      by AT&T Knowledge Ventures                      *
8*4887Schin *                                                                      *
9*4887Schin *                A copy of the License is available at                 *
10*4887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
11*4887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*4887Schin *                                                                      *
13*4887Schin *              Information and Software Systems Research               *
14*4887Schin *                            AT&T Research                             *
15*4887Schin *                           Florham Park NJ                            *
16*4887Schin *                                                                      *
17*4887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
18*4887Schin *                  David Korn <dgk@research.att.com>                   *
19*4887Schin *                   Phong Vo <kpv@research.att.com>                    *
20*4887Schin *                                                                      *
21*4887Schin ***********************************************************************/
22*4887Schin #pragma prototyped
23*4887Schin /*
24*4887Schin  * Glenn Fowler
25*4887Schin  * AT&T Research
26*4887Schin  *
27*4887Schin  * Time_t conversion support
28*4887Schin  */
29*4887Schin 
30*4887Schin #include <tmx.h>
31*4887Schin #include <tv.h>
32*4887Schin 
33*4887Schin /*
34*4887Schin  * touch path <atime,mtime,ctime>
35*4887Schin  * (flags&PATH_TOUCH_VERBATIM) treats times verbatim, otherwise:
36*4887Schin  * Time_t==0		current time
37*4887Schin  * Time_t==TMX_NOTIME	retains path value
38*4887Schin  */
39*4887Schin 
40*4887Schin int
41*4887Schin tmxtouch(const char* path, Time_t at, Time_t mt, Time_t ct, int flags)
42*4887Schin {
43*4887Schin 	Tv_t	av;
44*4887Schin 	Tv_t	mv;
45*4887Schin 	Tv_t	cv;
46*4887Schin 	Tv_t*	ap;
47*4887Schin 	Tv_t*	mp;
48*4887Schin 	Tv_t*	cp;
49*4887Schin 
50*4887Schin 	if (at == TMX_NOTIME && !(flags & PATH_TOUCH_VERBATIM))
51*4887Schin 		ap = TV_TOUCH_RETAIN;
52*4887Schin 	else if (!at && !(flags & PATH_TOUCH_VERBATIM))
53*4887Schin 		ap = 0;
54*4887Schin 	else
55*4887Schin 	{
56*4887Schin 		av.tv_sec = tmxsec(at);
57*4887Schin 		av.tv_nsec = tmxnsec(at);
58*4887Schin 		ap = &av;
59*4887Schin 	}
60*4887Schin 	if (mt == TMX_NOTIME && !(flags & PATH_TOUCH_VERBATIM))
61*4887Schin 		mp = TV_TOUCH_RETAIN;
62*4887Schin 	else if (!mt && !(flags & PATH_TOUCH_VERBATIM))
63*4887Schin 		mp = 0;
64*4887Schin 	else
65*4887Schin 	{
66*4887Schin 		mv.tv_sec = tmxsec(mt);
67*4887Schin 		mv.tv_nsec = tmxnsec(mt);
68*4887Schin 		mp = &mv;
69*4887Schin 	}
70*4887Schin 	if (ct == TMX_NOTIME && !(flags & PATH_TOUCH_VERBATIM))
71*4887Schin 		cp = TV_TOUCH_RETAIN;
72*4887Schin 	else if (!ct && !(flags & PATH_TOUCH_VERBATIM))
73*4887Schin 		cp = 0;
74*4887Schin 	else
75*4887Schin 	{
76*4887Schin 		cv.tv_sec = tmxsec(ct);
77*4887Schin 		cv.tv_nsec = tmxnsec(ct);
78*4887Schin 		cp = &cv;
79*4887Schin 	}
80*4887Schin 	return tvtouch(path, ap, mp, cp, flags & 1);
81*4887Schin }
82