/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 1987 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/time.h>
/*
* Backwards compatible utime.
*
* The System V system call allows any user with write permission
* on a file to set the accessed and modified times to the current
* time; they specify this by passing a null pointer to "utime".
* This is done to simulate reading one byte from a file and
* overwriting that byte with itself, which is the technique used
* by older versions of the "touch" command. The advantage of this
* hack in the system call is that it works correctly even if the file
* is zero-length.
*
* The BSD system call never allowed a null pointer so there should
* be no compatibility problem there.
*/
int
utime(char *name, time_t otv[2])
{
struct timeval tv[2];
if (otv == 0) {
return (utimes(name, (struct timeval *)0));
} else {
tv[0].tv_sec = (long)otv[0];
tv[0].tv_usec = 0;
tv[1].tv_sec = (long)otv[1];
tv[1].tv_usec = 0;
}
return (utimes(name, tv));
}