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 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 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 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