1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate #ident "%Z%%M% %I% %E% SMI"
23*0Sstevel@tonic-gate
24*0Sstevel@tonic-gate /*
25*0Sstevel@tonic-gate * Copyright 1997 by Sun Microsystems, Inc.
26*0Sstevel@tonic-gate * All rights reserved.
27*0Sstevel@tonic-gate */
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <sys/param.h>
30*0Sstevel@tonic-gate #include <sys/types.h>
31*0Sstevel@tonic-gate #include <sys/systm.h>
32*0Sstevel@tonic-gate #include <sys/errno.h>
33*0Sstevel@tonic-gate #include <sys/pathname.h>
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate int
resolvepath(char * path,char * buf,size_t count)36*0Sstevel@tonic-gate resolvepath(char *path, char *buf, size_t count)
37*0Sstevel@tonic-gate {
38*0Sstevel@tonic-gate struct pathname lookpn;
39*0Sstevel@tonic-gate struct pathname resolvepn;
40*0Sstevel@tonic-gate int error;
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate if (count == 0)
43*0Sstevel@tonic-gate return (0);
44*0Sstevel@tonic-gate if (error = pn_get(path, UIO_USERSPACE, &lookpn))
45*0Sstevel@tonic-gate return (set_errno(error));
46*0Sstevel@tonic-gate pn_alloc(&resolvepn);
47*0Sstevel@tonic-gate error = lookuppn(&lookpn, &resolvepn, FOLLOW, NULL, NULL);
48*0Sstevel@tonic-gate if (error == 0) {
49*0Sstevel@tonic-gate if (count > resolvepn.pn_pathlen)
50*0Sstevel@tonic-gate count = resolvepn.pn_pathlen;
51*0Sstevel@tonic-gate if (copyout(resolvepn.pn_path, buf, count))
52*0Sstevel@tonic-gate error = EFAULT;
53*0Sstevel@tonic-gate }
54*0Sstevel@tonic-gate pn_free(&resolvepn);
55*0Sstevel@tonic-gate pn_free(&lookpn);
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate if (error)
58*0Sstevel@tonic-gate return (set_errno(error));
59*0Sstevel@tonic-gate return ((int)count);
60*0Sstevel@tonic-gate }
61