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author | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
commit | 5209a846a9157e649fcdcb561f7eaf19c8c0e465 (patch) | |
tree | b0a7e52b5646c8eec182dbc391e7934b6804488c /source4/lib/tdb/common/freelistcheck.c | |
parent | 625359b2e266105022309df8985720108ecd6f67 (diff) | |
parent | 2ee8d29d22bcb1c350ab59d71b0aee548489bc9c (diff) | |
download | samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.gz samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.bz2 samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.zip |
Merge branch 'master' of ssh://git.samba.org/data/git/samba into regsrv
Conflicts:
source4/lib/registry/ldb.c
source4/rpc_server/winreg/rpc_winreg.c
Diffstat (limited to 'source4/lib/tdb/common/freelistcheck.c')
-rw-r--r-- | source4/lib/tdb/common/freelistcheck.c | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/source4/lib/tdb/common/freelistcheck.c b/source4/lib/tdb/common/freelistcheck.c deleted file mode 100644 index efc050df9c..0000000000 --- a/source4/lib/tdb/common/freelistcheck.c +++ /dev/null @@ -1,107 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - trivial database library - - Copyright (C) Jeremy Allison 2006 - - ** NOTE! The following LGPL license applies to the tdb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, see <http://www.gnu.org/licenses/>. -*/ - -#include "tdb_private.h" - -/* Check the freelist is good and contains no loops. - Very memory intensive - only do this as a consistency - checker. Heh heh - uses an in memory tdb as the storage - for the "seen" record list. For some reason this strikes - me as extremely clever as I don't have to write another tree - data structure implementation :-). - */ - -static int seen_insert(struct tdb_context *mem_tdb, tdb_off_t rec_ptr) -{ - TDB_DATA key, data; - - memset(&data, '\0', sizeof(data)); - key.dptr = (unsigned char *)&rec_ptr; - key.dsize = sizeof(rec_ptr); - return tdb_store(mem_tdb, key, data, TDB_INSERT); -} - -int tdb_validate_freelist(struct tdb_context *tdb, int *pnum_entries) -{ - struct tdb_context *mem_tdb = NULL; - struct list_struct rec; - tdb_off_t rec_ptr, last_ptr; - int ret = -1; - - *pnum_entries = 0; - - mem_tdb = tdb_open("flval", tdb->header.hash_size, - TDB_INTERNAL, O_RDWR, 0600); - if (!mem_tdb) { - return -1; - } - - if (tdb_lock(tdb, -1, F_WRLCK) == -1) { - tdb_close(mem_tdb); - return 0; - } - - last_ptr = FREELIST_TOP; - - /* Store the FREELIST_TOP record. */ - if (seen_insert(mem_tdb, last_ptr) == -1) { - ret = TDB_ERRCODE(TDB_ERR_CORRUPT, -1); - goto fail; - } - - /* read in the freelist top */ - if (tdb_ofs_read(tdb, FREELIST_TOP, &rec_ptr) == -1) { - goto fail; - } - - while (rec_ptr) { - - /* If we can't store this record (we've seen it - before) then the free list has a loop and must - be corrupt. */ - - if (seen_insert(mem_tdb, rec_ptr)) { - ret = TDB_ERRCODE(TDB_ERR_CORRUPT, -1); - goto fail; - } - - if (tdb_rec_free_read(tdb, rec_ptr, &rec) == -1) { - goto fail; - } - - /* move to the next record */ - last_ptr = rec_ptr; - rec_ptr = rec.next; - *pnum_entries += 1; - } - - ret = 0; - - fail: - - tdb_close(mem_tdb); - tdb_unlock(tdb, -1, F_WRLCK); - return ret; -} |