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/*-
* Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
* All rights reserved.
*
* This software was developed by Robert Watson for the TrustedBSD Project.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* acl_get_fd - syscall wrapper for retrieving access ACL by fd
* acl_get_fd_np - syscall wrapper for retrieving ACL by fd (non-POSIX)
* acl_get_file - syscall wrapper for retrieving ACL by filename
* acl_get_link_np - syscall wrapper for retrieving ACL by filename (NOFOLLOW)
* (non-POSIX)
* acl_get_perm_np() checks if a permission is in the specified
* permset (non-POSIX)
* acl_get_permset() returns the permission set in the ACL entry
* acl_get_qualifier() retrieves the qualifier of the tag from the ACL entry
* acl_get_tag_type() returns the tag type for the ACL entry entry_d
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include "namespace.h"
#include <sys/acl.h>
#include "un-namespace.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
acl_t
acl_get_file(const char *path_p, acl_type_t type)
{
acl_t aclp;
int error;
aclp = acl_init(ACL_MAX_ENTRIES);
if (aclp == NULL)
return (NULL);
error = __acl_get_file(path_p, type, &aclp->ats_acl);
if (error) {
acl_free(aclp);
return (NULL);
}
return (aclp);
}
acl_t
acl_get_link_np(const char *path_p, acl_type_t type)
{
acl_t aclp;
int error;
aclp = acl_init(ACL_MAX_ENTRIES);
if (aclp == NULL)
return (NULL);
error = __acl_get_link(path_p, type, &aclp->ats_acl);
if (error) {
acl_free(aclp);
return (NULL);
}
return (aclp);
}
acl_t
acl_get_fd(int fd)
{
acl_t aclp;
int error;
aclp = acl_init(ACL_MAX_ENTRIES);
if (aclp == NULL)
return (NULL);
error = ___acl_get_fd(fd, ACL_TYPE_ACCESS, &aclp->ats_acl);
if (error) {
acl_free(aclp);
return (NULL);
}
return (aclp);
}
acl_t
acl_get_fd_np(int fd, acl_type_t type)
{
acl_t aclp;
int error;
aclp = acl_init(ACL_MAX_ENTRIES);
if (aclp == NULL)
return (NULL);
error = ___acl_get_fd(fd, type, &aclp->ats_acl);
if (error) {
acl_free(aclp);
return (NULL);
}
return (aclp);
}
int
acl_get_perm_np(acl_permset_t permset_d, acl_perm_t perm)
{
if (permset_d == NULL) {
errno = EINVAL;
return (-1);
}
switch(perm) {
case ACL_READ:
case ACL_WRITE:
case ACL_EXECUTE:
if (*permset_d & perm)
return (1);
break;
default:
errno = EINVAL;
return (-1);
}
return (0);
}
/*
* acl_get_permset() (23.4.17): return via permset_p a descriptor to
* the permission set in the ACL entry entry_d.
*/
int
acl_get_permset(acl_entry_t entry_d, acl_permset_t *permset_p)
{
if (entry_d == NULL || permset_p == NULL) {
errno = EINVAL;
return (-1);
}
*permset_p = &entry_d->ae_perm;
return (0);
}
/*
* acl_get_qualifier() (23.4.18): retrieve the qualifier of the tag
* for the ACL entry entry_d.
*/
void *
acl_get_qualifier(acl_entry_t entry_d)
{
uid_t *retval;
if (entry_d == NULL) {
errno = EINVAL;
return (NULL);
}
switch(entry_d->ae_tag) {
case ACL_USER:
case ACL_GROUP:
retval = malloc(sizeof(uid_t));
if (retval == NULL)
return (NULL);
*retval = entry_d->ae_id;
return (retval);
}
errno = EINVAL;
return (NULL);
}
/*
* acl_get_tag_type() (23.4.19): return the tag type for the ACL
* entry entry_p.
*/
int
acl_get_tag_type(acl_entry_t entry_d, acl_tag_t *tag_type_p)
{
if (entry_d == NULL || tag_type_p == NULL) {
errno = EINVAL;
return (-1);
}
*tag_type_p = entry_d->ae_tag;
return (0);
}
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