mirror of
https://github.com/freebsd/freebsd-src
synced 2024-11-05 18:22:52 +00:00
75 lines
3.4 KiB
C
75 lines
3.4 KiB
C
/*-
|
|
* Copyright (c) 1992 Keith Muller.
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Keith Muller of the University of California, San Diego.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)cache.h 8.1 (Berkeley) 5/31/93
|
|
* $Id: cache.h,v 1.4 1997/02/22 14:04:22 peter Exp $
|
|
*/
|
|
|
|
/*
|
|
* Constants and data structures used to implement group and password file
|
|
* caches. Traditional passwd/group cache routines perform quite poorly with
|
|
* archives. The chances of hitting a valid lookup with an archive is quite a
|
|
* bit worse than with files already resident on the file system. These misses
|
|
* create a MAJOR performance cost. To address this problem, these routines
|
|
* cache both hits and misses.
|
|
*
|
|
* NOTE: name lengths must be as large as those stored in ANY PROTOCOL and
|
|
* as stored in the passwd and group files. CACHE SIZES MUST BE PRIME
|
|
*/
|
|
#define UNMLEN 32 /* >= user name found in any protocol */
|
|
#define GNMLEN 32 /* >= group name found in any protocol */
|
|
#define UID_SZ 317 /* size of user_name/uid cache */
|
|
#define UNM_SZ 317 /* size of user_name/uid cache */
|
|
#define GID_SZ 251 /* size of gid cache */
|
|
#define GNM_SZ 317 /* size of group name cache */
|
|
#define VALID 1 /* entry and name are valid */
|
|
#define INVALID 2 /* entry valid, name NOT valid */
|
|
|
|
/*
|
|
* Node structures used in the user, group, uid, and gid caches.
|
|
*/
|
|
|
|
typedef struct uidc {
|
|
int valid; /* is this a valid or a miss entry */
|
|
char name[UNMLEN]; /* uid name */
|
|
uid_t uid; /* cached uid */
|
|
} UIDC;
|
|
|
|
typedef struct gidc {
|
|
int valid; /* is this a valid or a miss entry */
|
|
char name[GNMLEN]; /* gid name */
|
|
gid_t gid; /* cached gid */
|
|
} GIDC;
|