Changeset 4b995b92 in mainline for uspace/srv

Timestamp:

2010-01-24T13:02:17Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

203a090

Parents:

c1a8e5e6

Message:

Introduce the L_NOCROSS_LAST_MP lookup flag and treat the last mount point node
according to it in libfs_lookup().

File:

• uspace/srv/vfs/vfs_ops.c (modified) (1 diff)

uspace/srv/vfs/vfs_ops.c

@@ -459 +459 @@
         /*
          * Make sure that we are called with exactly one of L_FILE and
-         * L_DIRECTORY. Make sure that the user does not pass L_OPEN.
+         * L_DIRECTORY. Make sure that the user does not pass L_OPEN or
+         * L_NOCROSS_LAST_MP.
          */
         if (((lflag & (L_FILE | L_DIRECTORY)) == 0) ||
             ((lflag & (L_FILE | L_DIRECTORY)) == (L_FILE | L_DIRECTORY)) ||
-            ((lflag & L_OPEN) != 0)) {
+            (lflag & L_OPEN) || (lflag & L_NOCROSS_LAST_MP)) {
                 ipc_answer_0(rid, EINVAL);
                 return;