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/* acl.h -- definitions for access control lists
*
* (C) Copyright 1993-1996 by Carnegie Mellon University
*
* All Rights Reserved
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of Carnegie
* Mellon University not be used in advertising or publicity
* pertaining to distribution of the software without specific,
* written prior permission. Carnegie Mellon University makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Author: Chris Newman
* Start Date: 6/28/93
*/
#ifndef INCLUDED_ACL_H
#define INCLUDED_ACL_H
#ifndef P
#ifdef __STDC__
#define P(x) x
#else
#define P(x) ()
#endif
#endif
#include "auth.h"
/* max length of an acl string */
#define ACL_MAXSTR 32
/* ACL bits */
#define ACL_LOOKUP 0x00001L
#define ACL_READ 0x00002L
#define ACL_SEEN 0x00004L
#define ACL_WRITE 0x00008L
#define ACL_INSERT 0x00010L
#define ACL_POST 0x00020L
#define ACL_CREATE 0x00040L
#define ACL_DELETE 0x00080L
#define ACL_ADMIN 0x00100L
#define ACL_ALL 0x001FFL
#define ACL_USER0 0x00200L
#define ACL_USER1 0x00400L
#define ACL_USER2 0x00800L
#define ACL_USER3 0x01000L
#define ACL_USER4 0x02000L
#define ACL_USER5 0x04000L
#define ACL_USER6 0x08000L
#define ACL_USER7 0x10000L
#define ACL_USER8 0x20000L
#define ACL_USER9 0x40000L
#define ACL_FULL 0xFFFFFL
#define ACL_MODE_SET 0
#define ACL_MODE_ADD 1
#define ACL_MODE_REMOVE 2
typedef int acl_canonproc_t P((void *rock, const char *identifier, int rights));
/* convert a string to an acl bit vector */
extern int acl_strtomask P((const char *str));
/* acl_masktostr(acl, dst)
* convert an acl bit vector to a string
* dst must have room for 32 characters (only 20 used currently)
* returns dst
*/
extern char *acl_masktostr P((int acl, char *str));
/* acl_myrights(acl)
* Calculate the set of rights the user in 'auth_state' has in the ACL 'acl'.
* 'acl' must be writable, but is restored to its original condition.
*/
extern int acl_myrights P((struct auth_state *auth_state, char *acl));
/* acl_set(acl, identifier, mode, access, canonproc, canonrock) Modify the
* ACL pointed to by 'acl' to modify the rights granted to
* 'identifier' as specified by 'mode' and the set specified in the
* mask 'access'. 'mode' is one of ACL_MODE_SET, ACL_MODE_ADD, or
* ACL_MODE_REMOVE. The pointer pointed to by 'acl' must have been
* obtained from malloc(). returns -1 on error, 0 on success */
extern int acl_set P((char **acl, const char *identifier,
int mode, int access,
acl_canonproc_t *canonproc, void *canonrock));
/* acl_remove(acl, identifier, canonproc, canonrock)
* Remove any entry for 'identifier' in the ACL pointed to by 'acl'.
* The pointer pointed to by 'acl' must have been obtained from malloc().
* returns -1 on error, 0 on success
*/
extern int acl_remove P((char **acl, const char *identifier,
acl_canonproc_t *canonproc, void *canonrock));
#endif /* INCLUDED_ACL_H */

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