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/*
* 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
*/
#ident "%Z%%M% %I% %E% SMI"
/*
* Copyright 1997 by Sun Microsystems, Inc.
* All rights reserved.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/pathname.h>
int
resolvepath(char *path, char *buf, size_t count)
{
struct pathname lookpn;
struct pathname resolvepn;
int error;
if (count == 0)
return (0);
if (error = pn_get(path, UIO_USERSPACE, &lookpn))
return (set_errno(error));
pn_alloc(&resolvepn);
error = lookuppn(&lookpn, &resolvepn, FOLLOW, NULL, NULL);
if (error == 0) {
if (count > resolvepn.pn_pathlen)
count = resolvepn.pn_pathlen;
if (copyout(resolvepn.pn_path, buf, count))
error = EFAULT;
}
pn_free(&resolvepn);
pn_free(&lookpn);
if (error)
return (set_errno(error));
return ((int)count);
}
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