xref: /onnv-gate/usr/src/lib/libc/port/gen/settimeofday.c (revision 6812:febeba71273d)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*6812Sraf  * Common Development and Distribution License (the "License").
6*6812Sraf  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
21*6812Sraf 
220Sstevel@tonic-gate /*
23*6812Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
280Sstevel@tonic-gate /*	  All Rights Reserved  	*/
290Sstevel@tonic-gate 
30*6812Sraf #pragma ident	"%Z%%M%	%I%	%E% SMI"
310Sstevel@tonic-gate 
32*6812Sraf #include "lint.h"
330Sstevel@tonic-gate #include <sys/types.h>
340Sstevel@tonic-gate #include <sys/time.h>
350Sstevel@tonic-gate #include <stdio.h>
360Sstevel@tonic-gate #include <unistd.h>
370Sstevel@tonic-gate #include <errno.h>
380Sstevel@tonic-gate 
390Sstevel@tonic-gate /*
400Sstevel@tonic-gate  * Set the time.
410Sstevel@tonic-gate  * Don't do anything with the timezone information.
420Sstevel@tonic-gate  */
430Sstevel@tonic-gate 
440Sstevel@tonic-gate /*ARGSUSED1*/
450Sstevel@tonic-gate int
settimeofday(struct timeval * tp,void * tzp)460Sstevel@tonic-gate settimeofday(struct timeval *tp, void *tzp)
470Sstevel@tonic-gate {
480Sstevel@tonic-gate 	time_t t;		/* time in seconds */
490Sstevel@tonic-gate 
500Sstevel@tonic-gate 	if (tp == NULL)
510Sstevel@tonic-gate 		return (0);
520Sstevel@tonic-gate 
53*6812Sraf 	if (tp->tv_sec < 0 || tp->tv_usec < 0 || tp->tv_usec >= MICROSEC) {
540Sstevel@tonic-gate 		errno = EINVAL;
550Sstevel@tonic-gate 		return (-1);
560Sstevel@tonic-gate 	}
570Sstevel@tonic-gate 
580Sstevel@tonic-gate 	t = (time_t)tp->tv_sec;
590Sstevel@tonic-gate 	if (tp->tv_usec >= (MICROSEC/2))
600Sstevel@tonic-gate 		/* round up */
610Sstevel@tonic-gate 		t++;
620Sstevel@tonic-gate 
630Sstevel@tonic-gate 	return (stime(&t));
640Sstevel@tonic-gate }
65