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/fcntl.h> 41 #include <sys/pathname.h> 42 #include <sys/var.h> 43 #include <sys/vfs.h> 44 #include <sys/vnode.h> 45 #include <sys/file.h> 46 #include <sys/mode.h> 47 #include <sys/proc.h> 48 #include <sys/uio.h> 49 #include <sys/filio.h> 50 #include <sys/fcntl.h> 51 #include <sys/debug.h> 52 #include <c2/audit.h> 53 54 /* 55 * Change ownership of file. 56 */ 57 int 58 fchownat(int fd, char *path, uid_t uid, gid_t gid, int flag) 59 { 60 struct vattr vattr; 61 int error; 62 struct zone *zone = crgetzone(CRED()); 63 64 if (uid != (uid_t)-1 && !VALID_UID(uid, zone) || 65 gid != (gid_t)-1 && !VALID_GID(gid, zone)) { 66 return (set_errno(EINVAL)); 67 } 68 vattr.va_uid = uid; 69 vattr.va_gid = gid; 70 vattr.va_mask = 0; 71 if (vattr.va_uid != -1) 72 vattr.va_mask |= AT_UID; 73 if (vattr.va_gid != -1) 74 vattr.va_mask |= AT_GID; 75 76 error = fsetattrat(fd, path, flag, &vattr); 77 if (error) 78 return (set_errno(error)); 79 return (0); 80 } 81 82 int 83 chown(char *path, uid_t uid, gid_t gid) 84 { 85 return (fchownat(AT_FDCWD, path, uid, gid, 0)); 86 } 87 88 int 89 lchown(char *path, uid_t uid, gid_t gid) 90 { 91 return (fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)); 92 } 93 94 int 95 fchown(int fd, uid_t uid, uid_t gid) 96 { 97 return (fchownat(fd, NULL, uid, gid, 0)); 98 } 99