17c478bdstevel@tonic-gate/*
27c478bdstevel@tonic-gate * CDDL HEADER START
37c478bdstevel@tonic-gate *
47c478bdstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bdstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bdstevel@tonic-gate * (the "License").  You may not use this file except in compliance
77c478bdstevel@tonic-gate * with the License.
87c478bdstevel@tonic-gate *
97c478bdstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bdstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bdstevel@tonic-gate * See the License for the specific language governing permissions
127c478bdstevel@tonic-gate * and limitations under the License.
137c478bdstevel@tonic-gate *
147c478bdstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bdstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bdstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bdstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bdstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bdstevel@tonic-gate *
207c478bdstevel@tonic-gate * CDDL HEADER END
217c478bdstevel@tonic-gate */
227c478bdstevel@tonic-gate/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
237c478bdstevel@tonic-gate/*	  All Rights Reserved  	*/
247c478bdstevel@tonic-gate
257c478bdstevel@tonic-gate
267c478bdstevel@tonic-gate#ident	"%Z%%M%	%I%	%E% SMI"       /* SVr4.0 1.3 */
277c478bdstevel@tonic-gate
287c478bdstevel@tonic-gate#include	<sys/types.h>
297c478bdstevel@tonic-gate#include	<sys/stat.h>
307c478bdstevel@tonic-gate
317c478bdstevel@tonic-gateint
327c478bdstevel@tonic-gatecheck_perm( statbuf, uid, gid, perm )
337c478bdstevel@tonic-gatestruct stat statbuf;
347c478bdstevel@tonic-gateuid_t uid;
357c478bdstevel@tonic-gategid_t gid;
367c478bdstevel@tonic-gatemode_t perm;
377c478bdstevel@tonic-gate{
387c478bdstevel@tonic-gate	int fail = -1;	/* assume no permission at onset */
397c478bdstevel@tonic-gate
407c478bdstevel@tonic-gate	/* Make sure we're dealing with a directory */
417c478bdstevel@tonic-gate	if( S_ISDIR( statbuf.st_mode )) {
427c478bdstevel@tonic-gate
437c478bdstevel@tonic-gate		/*
447c478bdstevel@tonic-gate		 * Have a directory, so make sure user has permission
457c478bdstevel@tonic-gate		 * by the various possible methods to this directory.
467c478bdstevel@tonic-gate		 */
477c478bdstevel@tonic-gate		if( (statbuf.st_uid == uid) &&
487c478bdstevel@tonic-gate		    (statbuf.st_mode & (perm << 6)) == (perm << 6) )
497c478bdstevel@tonic-gate			fail = 0;
507c478bdstevel@tonic-gate		else
517c478bdstevel@tonic-gate		if( (statbuf.st_gid == gid) &&
527c478bdstevel@tonic-gate		    (statbuf.st_mode & (perm << 3)) == (perm << 3) )
537c478bdstevel@tonic-gate			fail = 0;
547c478bdstevel@tonic-gate		else
557c478bdstevel@tonic-gate		if( (statbuf.st_mode & perm) == perm )
567c478bdstevel@tonic-gate			fail = 0;
577c478bdstevel@tonic-gate	}
587c478bdstevel@tonic-gate
597c478bdstevel@tonic-gate	return( fail );
607c478bdstevel@tonic-gate}
61