2 * This Cplant(TM) source code is the property of Sandia National
5 * This Cplant(TM) source code is copyrighted by Sandia National
8 * The redistribution of this Cplant(TM) source code is subject to the
9 * terms of the GNU Lesser General Public License
10 * (see cit/LGPL or http://www.gnu.org/licenses/lgpl.html)
12 * Cplant(TM) Copyright 1998-2003 Sandia Corporation.
13 * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
14 * license for use of this work by or on behalf of the US Government.
15 * Export of this program may require a license from the United States
20 * This library is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU Lesser General Public
22 * License as published by the Free Software Foundation; either
23 * version 2.1 of the License, or (at your option) any later version.
25 * This library is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28 * Lesser General Public License for more details.
30 * You should have received a copy of the GNU Lesser General Public
31 * License along with this library; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 * Questions or comments about this library should be sent to:
37 * Sandia National Laboratories, New Mexico
39 * Albuquerque, NM 87185-1110
48 #include <sys/types.h>
51 #include <sys/queue.h>
58 SYSIO_INTERFACE_NAME(rename)(const char *oldpath, const char *newpath)
62 struct pnode *old, *new;
63 struct pnode_base *nxtpb, *pb;
64 struct intnl_stat ostbuf, nstbuf;
65 SYSIO_INTERFACE_DISPLAY_BLOCK;
67 SYSIO_INTERFACE_ENTER;
69 * Resolve oldpath to a path node.
71 INTENT_INIT(&intent, INT_UPDPARENT, NULL, NULL);
72 err = _sysio_namei(_sysio_cwd, oldpath, 0, &intent, &old);
76 * Resolve newpath to a path node.
78 INTENT_INIT(&intent, INT_UPDPARENT, NULL, NULL);
79 err = _sysio_namei(_sysio_cwd, newpath, ND_NEGOK, &intent, &new);
83 if (old->p_mount->mnt_root == old || old->p_cover ||
84 new->p_mount->mnt_root == new) {
89 if (old->p_mount->mnt_fs != new->p_mount->mnt_fs) {
91 * Oops. They're trying to move it across file systems.
98 * Make sure the old pnode can't be found in the ancestor chain
99 * for the new. If it can, they are trying to move into a subdirectory
105 nxtpb = pb->pb_parent;
106 if (pb == old->p_base) {
112 while (new->p_base->pb_ino) {
114 * Existing entry. We're replacing the new. Make sure that's
118 old->p_base->pb_ino->i_ops.inop_getattr(old, NULL, &ostbuf);
122 new->p_base->pb_ino->i_ops.inop_getattr(new, NULL, &nstbuf);
127 * Rats! It disappeared beneath us.
129 (void )_sysio_p_validate(new, NULL, NULL);
132 if (S_ISDIR(ostbuf.st_mode)) {
133 if (!S_ISDIR(nstbuf.st_mode)) {
137 if (nstbuf.st_nlink > 2) {
141 } else if (S_ISDIR(nstbuf.st_mode)) {
149 * It's not impossible to clean up the altered name space after
150 * a rename. However, it is onerous and I don't want to do it right
151 * now. If it becomes an issue, we can do it later. For now, I've
152 * elected to use the semantic that says, basically, the entire
153 * sub-tree must be unreferenced. That's per POSIX, but it's a nasty
154 * this to do to the caller.
156 if (_sysio_p_prune(new) != 1) {
160 err = old->p_base->pb_ino->i_ops.inop_rename(old, new);
164 * Reflect the successful rename in the active name space graph.
166 if (new->p_base->pb_ino)
167 I_GONE(new->p_base->pb_ino);
168 new->p_base->pb_ino = old->p_base->pb_ino;
169 I_REF(new->p_base->pb_ino);
178 _sysio_p_gone(old); /* kill it! */
180 SYSIO_INTERFACE_RETURN(err ? -1 : 0, err);