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 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 73 unlink(char *name) 74 { 75 return (unlinkat(AT_FDCWD, name, 0)); 76 } 77 78 int 79 rmdir(char *name) 80 { 81 return (unlinkat(AT_FDCWD, name, AT_REMOVEDIR)); 82 } 83