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/* option.h -- IMSP option routines
*
* Copyright (c) 1993-2000 Carnegie Mellon University. All rights reserved.
*
* 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. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any other legal
* details, please contact
* Office of Technology Transfer
* Carnegie Mellon University
* 5000 Forbes Avenue
* Pittsburgh, PA 15213-3890
* (412) 268-4387, fax: (412) 268-7395
* tech-transfer@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* 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 <chrisn+@cmu.edu>
* Start Date: 4/6/93
*/
#ifndef OPTION_H
#define OPTION_H
#include "syncdb.h"
/* state used for option_match */
typedef struct option_state {
/* all variables are private to option module */
sdb_keyvalue *gkv, *ukv, *gkvpos, *ukvpos;
int gcount, ucount, gtotal, utotal, buflen;
char *buf;
} option_state;
/* storage for list options */
typedef struct option_list {
int count;
char *data;
char *item[1];
} option_list;
/* make sure user has options database
* returns 0 if database exists, -1 on failure
*/
int option_check( /* char *user */ );
/* create new user options database
* returns -1 on failure
*/
int option_create( /* char *user */ );
/* begin a match
* returns -1 on failure
*/
int option_matchstart( /* option_state *state, char *user, char *pat */ );
/* get the next match
* returns *name, or NULL
* *name could vanish if any other db calls are made
* if admin is non-zero, then administrator options should be shown
*/
char *option_match( /* option_state *state, char *user, char **name,
char **value, int *rwflag, int admin */ );
/* finish option matching
*/
void option_matchdone( /* option_state *state */ );
/* get an option
* if admin is set then non-visible options will be returned
* opt must be all lower case
* rwflag may be NULL if caller doesn't care
* returns NULL for no entry
* caller must free the result
*/
char *option_get( /* char *user, char *opt, int admin, int *rwflag */ );
/* test if an option is "on"
* opt must be all lower case
* like option_get, but parses returning dflt if option is not set.
*/
int option_test( /* char *user, char *opt, int admin, int dflt */ );
/* get a list option
* opt must be all lower case
*/
option_list *option_getlist( /* char *user, char *opt, int admin */ );
/* free results of option_getlist
* opt must be all lower case
*/
void option_freelist( /* option_list *olist */ );
/* check if a string is in a list
* opt must be all lower case
* returns -1 on failure, 0 if not in list, 1 if in list
*/
int option_lookup( /* char *user, char *opt, int admin, char *str */ );
/* check/update user quota usage
* delta -- change in usage (in bytes)
* returns -1 on db error, -2 on quota overflow, 0 on success
* NOTE: will never return -2 if delta is negative.
*/
int option_doquota( /* char *user, long delta */ );
/* set an option
* returns -1 on failure, -3 on over quota
*/
int option_set( /* char *user, char *opt, int admin, char *value */ );
/* unset an option
* returns -1 on error, 0 if option was not set, 1 if option was unset
*/
int option_unset( /* char *user, char *opt, int admin */ );
#endif /* OPTION_H */
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