/**
* @param db_path Path to DB, which probably does not exist. But it gets passed in because we need
* it in a bunch of places.
* @param idx_path Path to index file (should be superset of db_path)
*/
TSK_HDB_INFO *idxonly_open(const TSK_TCHAR *db_path, const TSK_TCHAR *idx_path)
{
TSK_HDB_BINSRCH_INFO *hdb_binsrch_info = NULL;
TSK_TCHAR *ext;
TSK_HDB_HTYPE_ENUM htype;
hdb_binsrch_info = hdb_binsrch_open(NULL, db_path);
if (NULL == hdb_binsrch_info) {
return NULL;
}
hdb_binsrch_info->base.db_type = TSK_HDB_DBTYPE_IDXONLY_ID;
// open the index
ext = TSTRRCHR(idx_path, _TSK_T('-'));
if (ext == NULL) {
tsk_error_reset();
tsk_error_set_errno(TSK_ERR_HDB_ARG);
tsk_error_set_errstr("idxonly_open: invalid file name (no extension): %" PRIttocTSK, idx_path);
return NULL;
}
else if ((TSTRLEN(ext) == 8) && (TSTRICMP(ext, _TSK_T("-md5.idx")) == 0)) {
htype = TSK_HDB_HTYPE_MD5_ID;
}
else if ((TSTRLEN(ext) == 9) && (TSTRICMP(ext, _TSK_T("-sha1.idx")) == 0)) {
htype = TSK_HDB_HTYPE_SHA1_ID;
}
else {
tsk_error_reset();
tsk_error_set_errno(TSK_ERR_HDB_ARG);
tsk_error_set_errstr("idxonly_open: invalid file name (unknown extension): %" PRIttocTSK, idx_path);
return NULL;
}
if (hdb_binsrch_open_idx((TSK_HDB_INFO*)hdb_binsrch_info, htype)) {
return NULL;
}
if (idxonly_name(hdb_binsrch_info)) {
hdb_binsrch_close((TSK_HDB_INFO*)hdb_binsrch_info);
return NULL;
}
hdb_binsrch_info->base.get_db_path = idxonly_get_db_path;
hdb_binsrch_info->get_entry = idxonly_getentry;
// Before returning, do one final check that we'll be able to open
// the index file
if (hdb_binsrch_open_idx((TSK_HDB_INFO*)hdb_binsrch_info, hdb_binsrch_info->hash_type)) {
hdb_binsrch_close((TSK_HDB_INFO*)hdb_binsrch_info);
return NULL;
}
return (TSK_HDB_INFO*)hdb_binsrch_info;
}
TSK_HDB_INFO *nsrl_open(FILE *hDb, const TSK_TCHAR *db_path)
{
TSK_HDB_BINSRCH_INFO *hdb_binsrch_info = NULL;
// get the basic binary-search info struct
hdb_binsrch_info = hdb_binsrch_open(hDb, db_path);
if (NULL == hdb_binsrch_info) {
return NULL;
}
// overwrite the database-specific methods
hdb_binsrch_info->base.db_type = TSK_HDB_DBTYPE_NSRL_ID;
hdb_binsrch_info->base.make_index = nsrl_makeindex;
hdb_binsrch_info->get_entry = nsrl_getentry;
return (TSK_HDB_INFO*)hdb_binsrch_info;
}
TSK_HDB_INFO *md5sum_open(FILE *hDb, const TSK_TCHAR *db_path)
{
TSK_HDB_BINSRCH_INFO *hdb_binsrch_info = NULL;
// get the basic binary-search info struct
hdb_binsrch_info = hdb_binsrch_open(hDb, db_path);
if (NULL == hdb_binsrch_info) {
return NULL;
}
// overwrite with more specific methods
hdb_binsrch_info->base.db_type = TSK_HDB_DBTYPE_MD5SUM_ID;
hdb_binsrch_info->get_entry = md5sum_getentry;
hdb_binsrch_info->base.make_index = md5sum_makeindex;
return (TSK_HDB_INFO*)hdb_binsrch_info;
}