1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28
29 /*
30 * Portions of this source code were derived from Berkeley 4.3 BSD
31 * under license from the Regents of the University of California.
32 */
33
34 #include <sys/param.h>
35 #include <sys/isa_defs.h>
36 #include <sys/types.h>
37 #include <sys/sysmacros.h>
38 #include <sys/systm.h>
39 #include <sys/errno.h>
40 #include <sys/vnode.h>
41 #include <sys/uio.h>
42 #include <sys/debug.h>
43 #include <sys/file.h>
44 #include <sys/fcntl.h>
45 #include <c2/audit.h>
46
47 /*
48 * Unlink a file from a directory
49 */
50 int
unlinkat(int fd,char * name,int flags)51 unlinkat(int fd, char *name, int flags)
52 {
53 vnode_t *startvp;
54 int error;
55
56 if (name == NULL)
57 return (set_errno(EFAULT));
58 if ((error = fgetstartvp(fd, name, &startvp)) != 0)
59 return (set_errno(error));
60 if (AU_AUDITING() && startvp != NULL)
61 audit_setfsat_path(1);
62
63 error = vn_removeat(startvp, name, UIO_USERSPACE,
64 (flags == AT_REMOVEDIR) ? RMDIRECTORY : RMFILE);
65 if (startvp != NULL)
66 VN_RELE(startvp);
67 if (error)
68 return (set_errno(error));
69 return (0);
70 }
71
72 int
unlink(char * name)73 unlink(char *name)
74 {
75 return (unlinkat(AT_FDCWD, name, 0));
76 }
77
78 int
rmdir(char * name)79 rmdir(char *name)
80 {
81 return (unlinkat(AT_FDCWD, name, AT_REMOVEDIR));
82 }
83