3 /*-
4  * SPDX-License-Identifier: BSD-2-Clause
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 	if (strncmp(dhx->dhx_magic, magic, _CITRUS_DB_MAGIC_SIZE) != 0)  in _citrus_db_open()
72 	if (_memstream_seek(&ms, be32toh(dhx->dhx_entry_offset), SEEK_SET))  in _citrus_db_open()
75 	if (be32toh(dhx->dhx_num_entries)*_CITRUS_DB_ENTRY_SIZE >  in _citrus_db_open()
82 	db->db_region = *r;  in _citrus_db_open()
83 	db->db_hashfunc = hashfunc;  in _citrus_db_open()
84 	db->db_hashfunc_closure = hashfunc_closure;  in _citrus_db_open()
99     struct _citrus_region *data, struct _citrus_db_locator *dl)  in _citrus_db_lookup()  argument
108 	_memstream_bind(&ms, &db->db_region);  in _citrus_db_lookup()
111 	num_entries = be32toh(dhx->dhx_num_entries);  in _citrus_db_lookup()
115 	if (dl != NULL && dl->dl_offset>0) {  in _citrus_db_lookup()
116 		hashval = dl->dl_hashval;  in _citrus_db_lookup()
117 		offset = dl->dl_offset;  in _citrus_db_lookup()
118 		if (offset >= _region_size(&db->db_region))  in _citrus_db_lookup()
121 		hashval = db->db_hashfunc(key)%num_entries;  in _citrus_db_lookup()
122 		offset = be32toh(dhx->dhx_entry_offset) +  in _citrus_db_lookup()
124 		if (dl)  in _citrus_db_lookup()
125 			dl->dl_hashval = hashval;  in _citrus_db_lookup()
137 		offset = be32toh(dex->dex_next_offset);  in _citrus_db_lookup()
140 		if (dl) {  in _citrus_db_lookup()
141 			dl->dl_offset = offset;  in _citrus_db_lookup()
143 				dl->dl_offset = _region_size(&db->db_region);  in _citrus_db_lookup()
147 		if (be32toh(dex->dex_hash_value) != hashval)  in _citrus_db_lookup()
151 		if (be32toh(dex->dex_key_size) == _region_size(key)) {  in _citrus_db_lookup()
153 			if (_memstream_seek(&ms, be32toh(dex->dex_key_offset),  in _citrus_db_lookup()
165 				    &ms, be32toh(dex->dex_data_offset),  in _citrus_db_lookup()
170 				    be32toh(dex->dex_data_size)) == NULL)  in _citrus_db_lookup()
182     struct _citrus_region *data, struct _citrus_db_locator *dl)  in _citrus_db_lookup_by_string()  argument
188 	return (_citrus_db_lookup(db, &r, data, dl));  in _citrus_db_lookup_by_string()
193     uint8_t *rval, struct _citrus_db_locator *dl)  in _citrus_db_lookup8_by_string()  argument
198 	ret = _citrus_db_lookup_by_string(db, key, &r, dl);  in _citrus_db_lookup8_by_string()
213     uint16_t *rval, struct _citrus_db_locator *dl)  in _citrus_db_lookup16_by_string()  argument
219 	ret = _citrus_db_lookup_by_string(db, key, &r, dl);  in _citrus_db_lookup16_by_string()
236     uint32_t *rval, struct _citrus_db_locator *dl)  in _citrus_db_lookup32_by_string()  argument
242 	ret = _citrus_db_lookup_by_string(db, key, &r, dl);  in _citrus_db_lookup32_by_string()
259     const char **rdata, struct _citrus_db_locator *dl)  in _citrus_db_lookup_string_by_string()  argument
264 	ret = _citrus_db_lookup_by_string(db, key, &r, dl);  in _citrus_db_lookup_string_by_string()
271 	if (*((const char*)_region_head(&r)+_region_size(&r)-1) != '\0')  in _citrus_db_lookup_string_by_string()
286 	_memstream_bind(&ms, &db->db_region);  in _citrus_db_get_number_of_entries()
289 	return ((int)be32toh(dhx->dhx_num_entries));  in _citrus_db_get_number_of_entries()
302 	_memstream_bind(&ms, &db->db_region);  in _citrus_db_get_entry()
305 	num_entries = be32toh(dhx->dhx_num_entries);  in _citrus_db_get_entry()
310 	offset = be32toh(dhx->dhx_entry_offset) + idx * _CITRUS_DB_ENTRY_SIZE;  in _citrus_db_get_entry()
318 	if (_memstream_seek(&ms, be32toh(dex->dex_key_offset), SEEK_SET))  in _citrus_db_get_entry()
321 	if (_memstream_getregion(&ms, key, be32toh(dex->dex_key_size))==NULL)  in _citrus_db_get_entry()
324 	if (_memstream_seek(&ms, be32toh(dex->dex_data_offset), SEEK_SET))  in _citrus_db_get_entry()
327 	if (_memstream_getregion(&ms, data, be32toh(dex->dex_data_size))==NULL)  in _citrus_db_get_entry()