2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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36 RCSID("$Id: db3.c,v 1.8.6.1 2003/08/29 16:59:39 lha Exp $");
42 #elif defined(HAVE_DB3_DB_H)
48 static krb5_error_code
49 DB_close(krb5_context context, HDB *db)
52 DBC *dbcp = (DBC*)db->dbc;
60 static krb5_error_code
61 DB_destroy(krb5_context context, HDB *db)
65 ret = hdb_clear_master_key (context, db);
71 static krb5_error_code
72 DB_lock(krb5_context context, HDB *db, int operation)
77 return HDB_ERR_CANT_LOCK_DB;
78 return hdb_lock(fd, operation);
81 static krb5_error_code
82 DB_unlock(krb5_context context, HDB *db)
87 return HDB_ERR_CANT_LOCK_DB;
88 return hdb_unlock(fd);
92 static krb5_error_code
93 DB_seq(krb5_context context, HDB *db,
94 unsigned flags, hdb_entry *entry, int flag)
98 krb5_data key_data, data;
101 memset(&key, 0, sizeof(DBT));
102 memset(&value, 0, sizeof(DBT));
103 if (db->lock(context, db, HDB_RLOCK))
104 return HDB_ERR_DB_INUSE;
105 code = dbcp->c_get(dbcp, &key, &value, flag);
106 db->unlock(context, db); /* XXX check value */
107 if (code == DB_NOTFOUND)
108 return HDB_ERR_NOENTRY;
112 key_data.data = key.data;
113 key_data.length = key.size;
114 data.data = value.data;
115 data.length = value.size;
116 if (hdb_value2entry(context, &data, entry))
117 return DB_seq(context, db, flags, entry, DB_NEXT);
118 if (db->master_key_set && (flags & HDB_F_DECRYPT)) {
119 code = hdb_unseal_keys (context, db, entry);
121 hdb_free_entry (context, entry);
123 if (entry->principal == NULL) {
124 entry->principal = malloc(sizeof(*entry->principal));
125 if (entry->principal == NULL) {
126 hdb_free_entry (context, entry);
127 krb5_set_error_string(context, "malloc: out of memory");
130 hdb_key2principal(context, &key_data, entry->principal);
137 static krb5_error_code
138 DB_firstkey(krb5_context context, HDB *db, unsigned flags, hdb_entry *entry)
140 return DB_seq(context, db, flags, entry, DB_FIRST);
144 static krb5_error_code
145 DB_nextkey(krb5_context context, HDB *db, unsigned flags, hdb_entry *entry)
147 return DB_seq(context, db, flags, entry, DB_NEXT);
150 static krb5_error_code
151 DB_rename(krb5_context context, HDB *db, const char *new_name)
156 asprintf(&old, "%s.db", db->name);
157 asprintf(&new, "%s.db", new_name);
158 ret = rename(old, new);
165 db->name = strdup(new_name);
169 static krb5_error_code
170 DB__get(krb5_context context, HDB *db, krb5_data key, krb5_data *reply)
176 memset(&k, 0, sizeof(DBT));
177 memset(&v, 0, sizeof(DBT));
181 if ((code = db->lock(context, db, HDB_RLOCK)))
183 code = d->get(d, NULL, &k, &v, 0);
184 db->unlock(context, db);
185 if(code == DB_NOTFOUND)
186 return HDB_ERR_NOENTRY;
190 krb5_data_copy(reply, v.data, v.size);
194 static krb5_error_code
195 DB__put(krb5_context context, HDB *db, int replace,
196 krb5_data key, krb5_data value)
202 memset(&k, 0, sizeof(DBT));
203 memset(&v, 0, sizeof(DBT));
208 v.size = value.length;
210 if ((code = db->lock(context, db, HDB_WLOCK)))
212 code = d->put(d, NULL, &k, &v, replace ? 0 : DB_NOOVERWRITE);
213 db->unlock(context, db);
214 if(code == DB_KEYEXIST)
215 return HDB_ERR_EXISTS;
221 static krb5_error_code
222 DB__del(krb5_context context, HDB *db, krb5_data key)
226 krb5_error_code code;
227 memset(&k, 0, sizeof(DBT));
231 code = db->lock(context, db, HDB_WLOCK);
234 code = d->del(d, NULL, &k, 0);
235 db->unlock(context, db);
236 if(code == DB_NOTFOUND)
237 return HDB_ERR_NOENTRY;
243 static krb5_error_code
244 DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
252 myflags |= DB_CREATE;
257 if (flags & O_RDONLY)
258 myflags |= DB_RDONLY;
261 myflags |= DB_TRUNCATE;
263 asprintf(&fn, "%s.db", db->name);
265 krb5_set_error_string(context, "malloc: out of memory");
268 db_create(&d, NULL, 0);
270 #if (DB_VERSION_MAJOR > 3) && (DB_VERSION_MINOR > 0)
271 if ((ret = d->open(db->db, NULL, fn, NULL, DB_BTREE, myflags, mode))) {
273 if ((ret = d->open(db->db, fn, NULL, DB_BTREE, myflags, mode))) {
276 /* try to open without .db extension */
277 #if (DB_VERSION_MAJOR > 3) && (DB_VERSION_MINOR > 0)
278 if (d->open(db->db, NULL, db->name, NULL, DB_BTREE, myflags, mode)) {
280 if (d->open(db->db, db->name, NULL, DB_BTREE, myflags, mode)) {
283 krb5_set_error_string(context, "opening %s: %s",
284 db->name, strerror(ret));
290 ret = d->cursor(d, NULL, (DBC **)&db->dbc, 0);
292 krb5_set_error_string(context, "d->cursor: %s", strerror(ret));
296 if((flags & O_ACCMODE) == O_RDONLY)
297 ret = hdb_check_db_format(context, db);
299 ret = hdb_init_db(context, db);
300 if(ret == HDB_ERR_NOENTRY)
306 hdb_db_create(krb5_context context, HDB **db,
307 const char *filename)
309 *db = malloc(sizeof(**db));
311 krb5_set_error_string(context, "malloc: out of memory");
316 (*db)->name = strdup(filename);
317 if ((*db)->name == NULL) {
318 krb5_set_error_string(context, "malloc: out of memory");
323 (*db)->master_key_set = 0;
325 (*db)->open = DB_open;
326 (*db)->close = DB_close;
327 (*db)->fetch = _hdb_fetch;
328 (*db)->store = _hdb_store;
329 (*db)->remove = _hdb_remove;
330 (*db)->firstkey = DB_firstkey;
331 (*db)->nextkey= DB_nextkey;
332 (*db)->lock = DB_lock;
333 (*db)->unlock = DB_unlock;
334 (*db)->rename = DB_rename;
335 (*db)->_get = DB__get;
336 (*db)->_put = DB__put;
337 (*db)->_del = DB__del;
338 (*db)->destroy = DB_destroy;
341 #endif /* HAVE_DB3 */