From 0da663e05c93f2791d7166ece8d69a1be06a7924 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 25 Aug 2021 14:49:58 +0200
Subject: implement open() for FD_SPECIAL_TTY (`/tty`)

---
 src/kernel/fd.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/kernel/fd.h')

diff --git a/src/kernel/fd.h b/src/kernel/fd.h
index bcc9902..c7c5182 100644
--- a/src/kernel/fd.h
+++ b/src/kernel/fd.h
@@ -18,6 +18,8 @@ struct fd {
 
 enum fdop { // describes the operations which can be done on file descriptors
 	FDOP_MOUNT, // also closes the original fd
+	FDOP_OPEN,  // when the file descriptor is mounted, open a file relative to it
+
 	FDOP_READ,
 	FDOP_WRITE,
 	FDOP_CLOSE,
@@ -30,6 +32,11 @@ struct fdop_args {
 		struct { // FDOP_MOUNT
 			struct mount *target;
 		} mnt;
+		struct { // FDOP_OPEN
+			struct fd *target;
+			const char *path; // relative to the mount point
+			size_t len;
+		} open;
 		struct { // FDOP_READ, FDOP_WRITE
 			user_ptr ptr;
 			size_t len;
-- 
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