xref: /openbsd/usr.bin/make/timestamp.c (revision 46cdafa7)
1 /*	$OpenBSD: timestamp.c,v 1.13 2024/08/06 04:59:18 gnezdo 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/types.h>
28 #include <time.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include "defines.h"
32 #include "timestamp.h"
33 
34 
35 struct timespec starttime;
36 
37 #define PLACEHOLDER "XXXXXXXXX "
38 char *
time_to_string(struct timespec * t)39 time_to_string(struct timespec *t)
40 {
41 	struct tm *parts;
42 	static char buf[128];
43 	char *s;
44 
45 	parts = localtime(&t->tv_sec);
46 	strftime(buf, sizeof buf, "%H:%M:%S." PLACEHOLDER "%b %d, %Y", parts);
47 	s = strstr(buf, PLACEHOLDER);
48 	if (s) {
49 		snprintf(s, sizeof(PLACEHOLDER), "%09ld", t->tv_nsec);
50 		s[9] = ' ';
51 	}
52 	buf[sizeof(buf) - 1] = '\0';
53 	return buf;
54 }
55 
56