Bug #13629 Updated: DB3 fails (driver initialization failure)

ID: 13629 User updated by: nclemons@vesn.com Reported By: nclemons@vesn.com Status: Open Bug Type: DBM/DBA related Operating System: Solaris 8 PHP Version: 4.0.6 New Comment: Er, just noticed the duplicity of the DBA_TRUNC code. Missed that the first time. ext/dba/dba_db3.c should change: type = info->mode == DBA_READER ? DB_UNKNOWN : info->mode == DBA_TRUNC ? DB_BTREE : info->mode == DBA_CREAT ? DB_BTREE : VCWD_STAT(info->path, &check_stat) ? DB_BTREE : DB_UNKNOWN; --Nathan Previous Comments: ------------------------------------------------------------------------ [2001-10-10 15:36:52] nclemons@vesn.com The following script runs fine the first time: <? $id = dba_open ("testdb.db", "c", "db3"); if (!$id) { echo "dba_open failed\n"; exit; } dba_close($id); ?> But second time (after the DB is created) it fails. After a long day of research, I found the Berkley DB code changed: db-3.2.9/db/db.c: switch (type) { case DB_UNKNOWN: if (LF_ISSET(DB_CREATE|DB_TRUNCATE)) { __db_err(dbenv, "%s: DB_UNKNOWN type specified with DB_CREATE or DB_TRUNCATE", name); return (EINVAL); } ok_flags = 0; break; case DB_BTREE: ok_flags = DB_OK_BTREE; break; case DB_HASH: ok_flags = DB_OK_HASH; break; case DB_QUEUE: ok_flags = DB_OK_QUEUE; break; case DB_RECNO: ok_flags = DB_OK_RECNO; break; default: __db_err(dbenv, "unknown type: %lu", (u_long)type); return (EINVAL); } When using "c" mode in dba_open, if the file does not exist, PHP calls dbp->open as: dbp->open(dbp, <file>, NULL, 1, 1, 420) When using "c" mode and the file does not exist, it calls dbp->open as: dbp->open(dbp, <file>, NULL, 5, 1, 420) DB_UNKNOWN and DB_CREATE are no longer valid options to pass together. My fix was to change ext/dba/dba_db3.c as follows: Before ------ type = info->mode == DBA_READER ? DB_UNKNOWN : info->mode == DBA_TRUNC ? DB_BTREE : VCWD_STAT(info->path, &check_stat) ? DB_BTREE : DB_UNKNOWN; After ----- type = info->mode == DBA_READER ? DB_UNKNOWN : info->mode == DBA_TRUNC ? DB_BTREE : (VCWD_STAT(info->path, &check_stat) || (info->mode == DBA_CREAT) || (info->mode == DBA_TRUNC)) ? DB_BTREE : DB_UNKNOWN; The only other way to solve this would be to attempt to determine the type of DB before trying to open it, as the PHP interface does not give the capability to distinguish between BTREE/RECNO/HASH/QUEUE/etc. This should solve the following bug reports: http://bugs.php.net/bug.php?id=10798 http://bugs.php.net/bug.php?id=13358 http://bugs.php.net/bug.php?id=8574 http://bugs.php.net/bug.php?id=11732 http://bugs.php.net/bug.php?id=10380 HTH, Nathan Clemons, Director of Virtual E-Services Network, Inc. ------------------------------------------------------------------------ Edit this bug report at http://bugs.php.net/?id=13629&edit=1