2 * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
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36 RCSID("$Id: db3.c 21610 2007-07-17 07:10:45Z lha $");
42 #elif defined(HAVE_DB3_DB_H)
48 static krb5_error_code
49 DB_close(krb5_context context, HDB *db)
51 DB *d = (DB*)db->hdb_db;
52 DBC *dbcp = (DBC*)db->hdb_dbc;
54 (*dbcp->c_close)(dbcp);
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)
74 DB *d = (DB*)db->hdb_db;
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)
84 DB *d = (DB*)db->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_ex *entry, int flag)
97 DBC *dbcp = db->hdb_dbc;
98 krb5_data key_data, data;
101 memset(&key, 0, sizeof(DBT));
102 memset(&value, 0, sizeof(DBT));
103 if ((*db->hdb_lock)(context, db, HDB_RLOCK))
104 return HDB_ERR_DB_INUSE;
105 code = (*dbcp->c_get)(dbcp, &key, &value, flag);
106 (*db->hdb_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 memset(entry, 0, sizeof(*entry));
117 if (hdb_value2entry(context, &data, &entry->entry))
118 return DB_seq(context, db, flags, entry, DB_NEXT);
119 if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) {
120 code = hdb_unseal_keys (context, db, &entry->entry);
122 hdb_free_entry (context, entry);
124 if (entry->entry.principal == NULL) {
125 entry->entry.principal = malloc(sizeof(*entry->entry.principal));
126 if (entry->entry.principal == NULL) {
127 hdb_free_entry (context, entry);
128 krb5_set_error_string(context, "malloc: out of memory");
131 hdb_key2principal(context, &key_data, entry->entry.principal);
138 static krb5_error_code
139 DB_firstkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
141 return DB_seq(context, db, flags, entry, DB_FIRST);
145 static krb5_error_code
146 DB_nextkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
148 return DB_seq(context, db, flags, entry, DB_NEXT);
151 static krb5_error_code
152 DB_rename(krb5_context context, HDB *db, const char *new_name)
157 asprintf(&old, "%s.db", db->hdb_name);
158 asprintf(&new, "%s.db", new_name);
159 ret = rename(old, new);
166 db->hdb_name = strdup(new_name);
170 static krb5_error_code
171 DB__get(krb5_context context, HDB *db, krb5_data key, krb5_data *reply)
173 DB *d = (DB*)db->hdb_db;
177 memset(&k, 0, sizeof(DBT));
178 memset(&v, 0, sizeof(DBT));
182 if ((code = (*db->hdb_lock)(context, db, HDB_RLOCK)))
184 code = (*d->get)(d, NULL, &k, &v, 0);
185 (*db->hdb_unlock)(context, db);
186 if(code == DB_NOTFOUND)
187 return HDB_ERR_NOENTRY;
191 krb5_data_copy(reply, v.data, v.size);
195 static krb5_error_code
196 DB__put(krb5_context context, HDB *db, int replace,
197 krb5_data key, krb5_data value)
199 DB *d = (DB*)db->hdb_db;
203 memset(&k, 0, sizeof(DBT));
204 memset(&v, 0, sizeof(DBT));
209 v.size = value.length;
211 if ((code = (*db->hdb_lock)(context, db, HDB_WLOCK)))
213 code = (*d->put)(d, NULL, &k, &v, replace ? 0 : DB_NOOVERWRITE);
214 (*db->hdb_unlock)(context, db);
215 if(code == DB_KEYEXIST)
216 return HDB_ERR_EXISTS;
222 static krb5_error_code
223 DB__del(krb5_context context, HDB *db, krb5_data key)
225 DB *d = (DB*)db->hdb_db;
227 krb5_error_code code;
228 memset(&k, 0, sizeof(DBT));
232 code = (*db->hdb_lock)(context, db, HDB_WLOCK);
235 code = (*d->del)(d, NULL, &k, 0);
236 (*db->hdb_unlock)(context, db);
237 if(code == DB_NOTFOUND)
238 return HDB_ERR_NOENTRY;
244 static krb5_error_code
245 DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
254 myflags |= DB_CREATE;
259 if((flags & O_ACCMODE) == O_RDONLY)
260 myflags |= DB_RDONLY;
263 myflags |= DB_TRUNCATE;
265 asprintf(&fn, "%s.db", db->hdb_name);
267 krb5_set_error_string(context, "malloc: out of memory");
270 db_create(&d, NULL, 0);
273 #if (DB_VERSION_MAJOR >= 4) && (DB_VERSION_MINOR >= 1)
274 ret = (*d->open)(db->hdb_db, NULL, fn, NULL, DB_BTREE, myflags, mode);
276 ret = (*d->open)(db->hdb_db, fn, NULL, DB_BTREE, myflags, mode);
280 /* try to open without .db extension */
281 #if (DB_VERSION_MAJOR >= 4) && (DB_VERSION_MINOR >= 1)
282 ret = (*d->open)(db->hdb_db, NULL, db->hdb_name, NULL, DB_BTREE,
285 ret = (*d->open)(db->hdb_db, db->hdb_name, NULL, DB_BTREE,
292 krb5_set_error_string(context, "opening %s: %s",
293 db->hdb_name, strerror(ret));
298 ret = (*d->cursor)(d, NULL, &dbc, 0);
300 krb5_set_error_string(context, "d->cursor: %s", strerror(ret));
305 if((flags & O_ACCMODE) == O_RDONLY)
306 ret = hdb_check_db_format(context, db);
308 ret = hdb_init_db(context, db);
309 if(ret == HDB_ERR_NOENTRY)
312 DB_close(context, db);
313 krb5_set_error_string(context, "hdb_open: failed %s database %s",
314 (flags & O_ACCMODE) == O_RDONLY ?
315 "checking format of" : "initialize",
323 hdb_db_create(krb5_context context, HDB **db,
324 const char *filename)
326 *db = calloc(1, sizeof(**db));
328 krb5_set_error_string(context, "malloc: out of memory");
332 (*db)->hdb_db = NULL;
333 (*db)->hdb_name = strdup(filename);
334 if ((*db)->hdb_name == NULL) {
335 krb5_set_error_string(context, "malloc: out of memory");
340 (*db)->hdb_master_key_set = 0;
341 (*db)->hdb_openp = 0;
342 (*db)->hdb_open = DB_open;
343 (*db)->hdb_close = DB_close;
344 (*db)->hdb_fetch = _hdb_fetch;
345 (*db)->hdb_store = _hdb_store;
346 (*db)->hdb_remove = _hdb_remove;
347 (*db)->hdb_firstkey = DB_firstkey;
348 (*db)->hdb_nextkey= DB_nextkey;
349 (*db)->hdb_lock = DB_lock;
350 (*db)->hdb_unlock = DB_unlock;
351 (*db)->hdb_rename = DB_rename;
352 (*db)->hdb__get = DB__get;
353 (*db)->hdb__put = DB__put;
354 (*db)->hdb__del = DB__del;
355 (*db)->hdb_destroy = DB_destroy;
358 #endif /* HAVE_DB3 */