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auto-recover from the fairly common case of a non-clean tdb shutdown

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while deleting a record. This leaves us with a non-free record on the
free list.
(This used to be commit e99b6a2b91)
This commit is contained in:
Andrew Tridgell
2002-05-22 01:32:12 +00:00
parent 3c1ff07fa4
commit c33cf24bcd
1 changed files with 10 additions and 0 deletions
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10
source3/tdb/tdb.c
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@ -412,6 +412,16 @@ static int rec_free_read(TDB_CONTEXT *tdb, tdb_off off, struct list_struct *rec)
{
if (tdb_read(tdb, off, rec, sizeof(*rec),DOCONV()) == -1)
return -1;
if (rec->magic == TDB_MAGIC) {
/* this happens when a app is showdown while deleting a record - we should
not completely fail when this happens */
TDB_LOG((tdb, 0,"rec_free_read non-free magic at offset=%d - fixing\n",
rec->magic, off));
rec->magic = TDB_FREE_MAGIC;
tdb_write(tdb, off, rec, sizeof(*rec));
}
if (rec->magic != TDB_FREE_MAGIC) {
TDB_LOG((tdb, 0,"rec_free_read bad magic 0x%x at offset=%d\n",
rec->magic, off));