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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1993-1997 by Sun Microsystems, Inc.
* All rights reserved
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* LINTLIBRARY */
/*
* Convert ACL to/from permission bits
*/
#include <errno.h>
#include <sys/acl.h>
int
acltomode(aclent_t *aclbufp, int nentries, mode_t *modep)
{
aclent_t *tp;
unsigned long mode;
unsigned long grpmode;
unsigned long mask;
int which;
int got_mask = 0;
*modep = 0;
if (aclcheck(aclbufp, nentries, &which) != 0) {
errno = EINVAL;
return (-1); /* errno is set in aclcheck() */
}
for (tp = aclbufp; nentries--; tp++) {
if (tp->a_type == USER_OBJ) {
mode = tp->a_perm;
if (mode > 07)
return (-1);
*modep |= (mode << 6);
continue;
}
if (tp->a_type == GROUP_OBJ) {
grpmode = tp->a_perm;
if (grpmode > 07)
return (-1);
continue;
}
if (tp->a_type == CLASS_OBJ) {
got_mask = 1;
mask = tp->a_perm;
if (mask > 07)
return (-1);
*modep |= (mask << 3);
continue;
}
if (tp->a_type == OTHER_OBJ) {
mode = tp->a_perm;
if (mode > 07)
return (-1);
*modep |= mode;
continue; /* we may break here if it is sorted */
}
}
if (!got_mask)
*modep |= (grpmode << 3);
return (0);
}
int
aclfrommode(aclent_t *aclbufp, int nentries, mode_t *modep)
{
aclent_t *tp;
aclent_t *savp;
mode_t mode;
mode_t grpmode;
int which;
int got_mask = 0;
if (aclcheck(aclbufp, nentries, &which) != 0) {
errno = EINVAL;
return (-1); /* errno is set in aclcheck() */
}
for (tp = aclbufp; nentries--; tp++) {
if (tp->a_type == USER_OBJ) {
mode = (*modep & 0700);
tp->a_perm = (mode >> 6);
continue;
}
if (tp->a_type == GROUP_OBJ) {
grpmode = (*modep & 070);
savp = tp;
continue;
}
if (tp->a_type == CLASS_OBJ) {
got_mask = 1;
mode = (*modep & 070);
tp->a_perm = (mode >> 3);
continue;
}
if (tp->a_type == OTHER_OBJ) {
mode = (*modep & 07);
tp->a_perm = (o_mode_t)mode;
continue; /* we may break here if it is sorted */
}
}
if (!got_mask)
savp->a_perm = (grpmode >> 3);
return (0);
}
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