some ideas are JUST so cool, i can't get over it.

created the following two functions:

int prs_tdb_store(TDB_CONTEXT *tdb, int flgs, prs_struct *pk, prs_struct *pd);
void prs_tdb_fetch(TDB_CONTEXT *tdb, prs_struct *pk, prs_struct *pd);

they are SO cool, it's unbelievable.  one prs_struct is used as a key,
the other as data.  they are used like this, which does a lookup of a
UNICODE domain name to look up the SID associated with it.

andrew, i'm in love with the tdb database code!

the point of using smb_io_unistr2 and smb_io_dom_sid is that these create
NDR (network data representation) flattened versions of the two
variable-length data structures, uni_domain and sid.  so it's an optimal
usage of pre-existing functions and also a reasonably optimal use of
database space (i cannot be bothered to write better disk-space-saving code
because these smb_io_() functions already exist).

p.s did i say i love the tdb code, already?

static uint32 tdb_lookup_domain(TDB_CONTEXT *tdb,
				const UNISTR2* uni_domain,
				DOM_SID *sid)
{
	prs_struct key;
	prs_struct data;
	UNISTR2 uni_dom_copy;

	copy_unistr2(&uni_dom_copy, uni_domain);

	prs_init(&key, 0, 4, False);
	if (!smb_io_unistr2("dom", &uni_dom_copy, True, &key, 0))
	{
		return NT_STATUS_NO_MEMORY;
	}

	prs_tdb_fetch(tdb, &key, &data);

	if (!smb_io_dom_sid("sid", sid, &data, 0))
	{
		prs_free_data(&key);
		prs_free_data(&data);
		return NT_STATUS_NO_SUCH_DOMAIN;
	}

	prs_free_data(&key);
	prs_free_data(&data);

	return 0x0;
}

1 files changed, 32 insertions, 0 deletions

diff --git a/source/rpc_parse/parse_prs.c b/source/rpc_parse/parse_prs.c
index dff3fc8e368..ec8e679bbf9 100644
--- a/source/rpc_parse/parse_prs.c
+++ b/source/rpc_parse/parse_prs.c
@@ -1035,3 +1035,35 @@ BOOL _prs_uint32_post(char *name, prs_struct *ps, int depth, uint32 *data32,
 	return True;
 }
 
+/*******************************************************************
+ prs_tdb_store.  stores prs_struct data by prs_struct key 
+ ********************************************************************/
+int prs_tdb_store(TDB_CONTEXT *tdb, int flgs, prs_struct *pk, prs_struct *pd)
+{
+	TDB_DATA key;
+	TDB_DATA data;
+
+	key.dptr = (char*)prs_data(pk, 0);
+	key.dsize = prs_buf_len(pk);
+
+	data.dptr = prs_data(pd, 0);
+	data.dsize = prs_buf_len(pd);
+
+	return tdb_store(tdb, key, data, flgs);
+}
+
+/*******************************************************************
+ prs_tdb_fetch.  fetches prs_struct data by prs_struct key 
+ ********************************************************************/
+void prs_tdb_fetch(TDB_CONTEXT *tdb, prs_struct *pk, prs_struct *pd)
+{
+	TDB_DATA key;
+	TDB_DATA data;
+
+	key.dptr = (char*)prs_data(pk, 0);
+	key.dsize = prs_buf_len(pk);
+
+	data = tdb_fetch(tdb, key);
+
+	prs_create(pd, data.dptr, data.dsize, 4, True);
+}