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/* This file is part of GNU Dico.
Copyright (C) 1998-2024 Sergey Poznyakoff
GNU Dico is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Dico is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <dico.h>
#include <dico/udb.h>
#include <sys/types.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
struct dico_udb {
void *handle;
dico_url_t url;
const char *qpw;
const char *qgrp;
const char *options;
int (*_db_open) (void **, dico_url_t, const char *);
int (*_db_close) (void *);
int (*_db_check_password) (void *, const char *, const char *,
const char *);
int (*_db_get_password) (void *, const char *, const char *, char **);
int (*_db_get_groups) (void *, const char *, const char *, dico_list_t *);
};
int
dico_udb_open(dico_udb_t db)
{
if (!db)
return 1;
if (!db->_db_open)
return 0;
return db->_db_open(&db->handle, db->url, db->options);
}
int
dico_udb_close(dico_udb_t db)
{
int rc;
if (!db->_db_close)
rc = 0;
else
rc = db->_db_close(db->handle);
db->handle = NULL;
return rc;
}
int
dico_udb_check_password(dico_udb_t db, const char *key, const char *pass)
{
if (!db->_db_check_password)
return ENOSYS;
return db->_db_check_password(db->handle, db->qpw, key, pass);
}
int
dico_udb_get_password(dico_udb_t db, const char *key, char **pass)
{
return db->_db_get_password(db->handle, db->qpw, key, pass);
}
int
dico_udb_get_groups(dico_udb_t db, const char *key, dico_list_t *groups)
{
return db->_db_get_groups(db->handle, db->qgrp, key, groups);
}
dico_list_t /* of struct dico_udb_def */ dico_udb_def_list;
static int
udb_def_cmp(const void *item, const void *data, void *ignore)
{
const struct dico_udb_def *def = item;
const char *proto = data;
return strcmp(def->proto, proto);
}
int
dico_udb_define(struct dico_udb_def *dptr)
{
if (!dico_udb_def_list) {
dico_udb_def_list = dico_list_create();
if (!dico_udb_def_list) {
errno = ENOMEM;
return 1;
}
dico_list_set_comparator(dico_udb_def_list, udb_def_cmp, NULL);
}
return dico_list_append(dico_udb_def_list, dptr);
}
int
dico_udb_create(dico_udb_t *pdb,
const char *urlstr, const char *qpw, const char *qgrp,
const char *options)
{
dico_url_t url;
int rc;
struct dico_udb_def *def;
struct dico_udb *uptr;
rc = dico_url_parse(&url, urlstr);
if (rc) {
errno = EINVAL;
return 1;
}
def = dico_list_locate(dico_udb_def_list, url->proto);
if (!def) {
errno = EINVAL;
dico_url_destroy(&url);
return 1;
}
uptr = calloc(1, sizeof(*uptr));
if (!uptr)
return 1;
uptr->url = url;
uptr->qpw = qpw;
uptr->qgrp = qgrp;
uptr->options = options;
uptr->_db_open = def->_db_open;
uptr->_db_close = def->_db_close;
uptr->_db_check_password = def->_db_check_password;
uptr->_db_get_password = def->_db_get_password;
uptr->_db_get_groups = def->_db_get_groups;
*pdb = uptr;
return 0;
}
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