add _syscall_getsize

1 files changed, 8 insertions, 1 deletions

diff --git a/src/user/app/init/driver/tmpfs.c b/src/user/app/init/driver/tmpfs.c
index 96fdf39..7414320 100644
--- a/src/user/app/init/driver/tmpfs.c
+++ b/src/user/app/init/driver/tmpfs.c
@@ -15,7 +15,9 @@ struct node {
 };
 
 struct node *root = NULL;
-static struct node special_root;
+static struct node special_root = {
+	.size = 0,
+};
 
 static struct node *lookup(const char *path, size_t len) {
 	for (struct node *iter = root; iter; iter = iter->next) {
@@ -109,6 +111,11 @@ void tmpfs_drv(void) {
 				_syscall_fs_respond(NULL, res.len, 0);
 				break;
 
+			case VFSOP_GETSIZE:
+				ptr = (void*)res.id;
+				_syscall_fs_respond(NULL, ptr->size, 0);
+				break;
+
 			default:
 				_syscall_fs_respond(NULL, -1, 0);
 				break;