ITS#7394 ignore WRITEMAP if RDONLY

12 years ago · d13ca0de4f
parent 0a359fb629
commit d13ca0de4f
1 changed files with 4 additions and 0 deletions
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@ -3128,6 +3128,10 @@ mdb_env_open(MDB_env *env, const char *path, unsigned int flags, mode_t mode)
 	if (rc)
 		goto leave;

+	/* silently ignore WRITEMAP if we're only getting read access */
+	if (F_ISSET(flags, MDB_RDONLY) && F_ISSET(flags, MDB_WRITEMAP))
+		flags ^= MDB_WRITEMAP;
+
 #ifdef _WIN32
 	if (F_ISSET(flags, MDB_RDONLY)) {
 		oflags = GENERIC_READ;