1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3 * CDDL HEADER START
4 *
5 * The contents of this file are subject to the terms of the
6 * Common Development and Distribution License (the "License").
7 * You may not use this file except in compliance with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or https://opensource.org/licenses/CDDL-1.0.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <stdio.h>
28 #include <time.h>
29 #include <langinfo.h>
30 #include "statcommon.h"
31
32 #ifndef _DATE_FMT
33 #ifdef D_T_FMT
34 #define _DATE_FMT D_T_FMT
35 #else /* D_T_FMT */
36 #define _DATE_FMT "%+"
37 #endif /* !D_T_FMT */
38 #endif /* _DATE_FMT */
39
40 /*
41 * Print timestamp as decimal reprentation of time_t value (-T u was specified)
42 * or in date(1) format (-T d was specified).
43 */
44 void
print_timestamp(uint_t timestamp_fmt)45 print_timestamp(uint_t timestamp_fmt)
46 {
47 time_t t = time(NULL);
48 static const char *fmt = NULL;
49
50 /* We only need to retrieve this once per invocation */
51 if (fmt == NULL)
52 fmt = nl_langinfo(_DATE_FMT);
53
54 if (timestamp_fmt == UDATE) {
55 (void) printf("%lld\n", (longlong_t)t);
56 } else if (timestamp_fmt == DDATE) {
57 char dstr[64];
58 struct tm tm;
59 int len;
60
61 len = strftime(dstr, sizeof (dstr), fmt, localtime_r(&t, &tm));
62 if (len > 0)
63 (void) printf("%s\n", dstr);
64 }
65 }
66
67 /*
68 * Return timestamp as decimal reprentation (in string) of time_t
69 * value (-T u was specified) or in date(1) format (-T d was specified).
70 */
71 void
get_timestamp(uint_t timestamp_fmt,char * buf,int len)72 get_timestamp(uint_t timestamp_fmt, char *buf, int len)
73 {
74 time_t t = time(NULL);
75 static const char *fmt = NULL;
76
77 /* We only need to retrieve this once per invocation */
78 if (fmt == NULL)
79 fmt = nl_langinfo(_DATE_FMT);
80
81 if (timestamp_fmt == UDATE) {
82 (void) snprintf(buf, len, "%lld", (longlong_t)t);
83 } else if (timestamp_fmt == DDATE) {
84 struct tm tm;
85 strftime(buf, len, fmt, localtime_r(&t, &tm));
86 }
87 }
88
89 /*
90 * Format the provided time stamp to human readable format
91 */
92 void
format_timestamp(time_t t,char * buf,int len)93 format_timestamp(time_t t, char *buf, int len)
94 {
95 struct tm tm;
96 static const char *fmt = NULL;
97
98 if (t == 0) {
99 snprintf(buf, len, "-");
100 return;
101 }
102
103 /* We only need to retrieve this once per invocation */
104 if (fmt == NULL)
105 fmt = nl_langinfo(_DATE_FMT);
106 strftime(buf, len, fmt, localtime_r(&t, &tm));
107 }
108