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