xref: /openbsd/usr.bin/make/timestamp.c (revision 3cab2bb3)
1 /*	$OpenBSD: timestamp.c,v 1.10 2013/05/22 12:14:08 espie 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 <sys/time.h>
28 #include <stdio.h>
29 #include <string.h>
30 #include "config.h"
31 #include "defines.h"
32 #include "timestamp.h"
33 
34 
35 struct timespec starttime;
36 
37 int
38 set_times(const char *f)
39 {
40     return utimes(f, NULL);
41 }
42 
43 #define PLACEHOLDER "XXXXXXXXX "
44 char *
45 time_to_string(struct timespec *t)
46 {
47 	struct tm *parts;
48 	static char buf[128];
49 	char *s;
50 
51 	parts = localtime(&t->tv_sec);
52 	strftime(buf, sizeof buf, "%H:%M:%S." PLACEHOLDER "%b %d, %Y", parts);
53 	s = strstr(buf, PLACEHOLDER);
54 	if (s) {
55 		snprintf(s, sizeof(PLACEHOLDER), "%09ld", t->tv_nsec);
56 		s[9] = ' ';
57 	}
58 	buf[sizeof(buf) - 1] = '\0';
59 	return buf;
60 }
61 
62