xref: /openbsd-src/usr.bin/make/timestamp.c (revision 4c1e55dc91edd6e69ccc60ce855900fbc12cf34f)
1 /*	$OpenBSD: timestamp.c,v 1.7 2011/12/10 04:12:36 guenther Exp $ */
2 
3 /*
4  * Copyright (c) 2001 Marc Espie.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
19  * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 #include "config.h"
28 #include "defines.h"
29 #include "timestamp.h"
30 
31 #ifndef USE_TIMESPEC
32 #include <sys/types.h>
33 #include <utime.h>
34 #endif
35 
36 TIMESTAMP now;		/* The time at the start of this whole process */
37 
38 int
39 set_times(const char *f)
40 {
41 #ifdef USE_TIMESPEC
42     return utimes(f, NULL);
43 #else
44     struct utimbuf times;
45 
46     time(&times.actime);
47     times.modtime = times.actime;
48     return utime(f, &times);
49 #endif
50 }
51 
52 char *
53 time_to_string(TIMESTAMP time)
54 {
55 	struct tm *parts;
56 	static char buf[128];
57 	time_t t;
58 
59 	t = timestamp2time_t(time);
60 
61 	parts = localtime(&t);
62 	strftime(buf, sizeof buf, "%H:%M:%S %b %d, %Y", parts);
63 	buf[sizeof(buf) - 1] = '\0';
64 	return buf;
65 }
66 
67