stat/common/timestamp.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include "statcommon.h"

#include <langinfo.h>

/*
 * Print timestamp as decimal reprentation of time_t value (-T u was specified)
 * or in date(1) format (-T d was specified).
 */
void
print_timestamp(uint_t timestamp_fmt)
{
    time_t t = time(NULL);
    static char *fmt = NULL;

    /* We only need to retrieve this once per invocation */
    if (fmt == NULL)
        fmt = nl_langinfo(_DATE_FMT);

    if (timestamp_fmt == UDATE) {
        (void) printf("%ld\n", t);
    } else if (timestamp_fmt == DDATE) {
        char dstr[64];
        int len;

        len = strftime(dstr, sizeof (dstr), fmt, localtime(&t));
        if (len > 0)
            (void) printf("%s\n", dstr);
    }
}