diff options
Diffstat (limited to 'procfs.c')
-rw-r--r-- | procfs.c | 26 |
1 files changed, 24 insertions, 2 deletions
@@ -14,6 +14,9 @@ struct netnode /* (cached) contents of the node */ void *contents; size_t contents_len; + + /* parent directory, if applicable */ + struct node *parent; }; void @@ -97,8 +100,24 @@ error_t procfs_lookup (struct node *np, const char *name, struct node **npp) { error_t err = ENOENT; - if (np->nn->ops->lookup) - err = np->nn->ops->lookup (np->nn->hook, name, npp); + if (err && ! strcmp (name, ".")) + { + netfs_nref(*npp = np); + err = 0; + } + + if (err && np->nn->parent && ! strcmp (name, "..")) + { + netfs_nref(*npp = np->nn->parent); + err = 0; + } + + if (err && np->nn->ops->lookup) + { + err = np->nn->ops->lookup (np->nn->hook, name, npp); + if (! err) + netfs_nref ((*npp)->nn->parent = np); + } return err; } @@ -111,5 +130,8 @@ void procfs_cleanup (struct node *np) if (np->nn->ops->cleanup) np->nn->ops->cleanup (np->nn->hook); + if (np->nn->parent) + netfs_nrele (np->nn->parent); + free (np->nn); } |