lib/libspl/timestamp.c

   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 http://www.opensolaris.org/os/licensing.
  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 #define _DATE_FMT "%+"
  33 #endif
  34
  35 /*
  36  * Print timestamp as decimal reprentation of time_t value (-T u was specified)
  37  * or in date(1) format (-T d was specified).
  38  */
  39 void
  40 print_timestamp(uint_t timestamp_fmt)
  41 {
  42         time_t t = time(NULL);
  43         static char *fmt = NULL;
  44
  45         /* We only need to retrieve this once per invocation */
  46         if (fmt == NULL)
  47                 fmt = nl_langinfo(_DATE_FMT);
  48
  49         if (timestamp_fmt == UDATE) {
  50                 (void) printf("%ld\n", t);
  51         } else if (timestamp_fmt == DDATE) {
  52                 char dstr[64];
  53                 int len;
  54
  55                 len = strftime(dstr, sizeof (dstr), fmt, localtime(&t));
  56                 if (len > 0)
  57                         (void) printf("%s\n", dstr);
  58         }
  59 }