From: Hallvard Furuseth <hallvard@openldap.org>
Date: Sun, 19 Jul 2015 19:44:02 +0000 (+0200)
Subject: ITS#7377 Catch mdb_put() to blocked/read-only txns
X-Git-Tag: LMDB_0.9.17~63
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=8901d9cfbcbe6a8a3278040485a4481af399e3bd;p=openldap

ITS#7377 Catch mdb_put() to blocked/read-only txns

...early enough that txn state is left unchanged.
---

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 4a2dd0a51d..b78178e4c3 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -8564,6 +8564,9 @@ mdb_put(MDB_txn *txn, MDB_dbi dbi,
 	if (flags & ~(MDB_NOOVERWRITE|MDB_NODUPDATA|MDB_RESERVE|MDB_APPEND|MDB_APPENDDUP))
 		return EINVAL;
 
+	if (txn->mt_flags & (MDB_TXN_RDONLY|MDB_TXN_BLOCKED))
+		return (txn->mt_flags & MDB_TXN_RDONLY) ? EACCES : MDB_BAD_TXN;
+
 	mdb_cursor_init(&mc, txn, dbi, &mx);
 	return mdb_cursor_put(&mc, key, data, flags);
 }