From 07ed1dc1962bfbb35171b6ac7cc9bc5b0354bdad Mon Sep 17 00:00:00 2001
From: AzureMarker <mark.drobnak@gmail.com>
Date: Sat, 22 Jan 2022 18:40:19 -0800
Subject: [PATCH] Add basic RomFS support

Seems to crash the 3DS if there is no actual RomFS data in the 3dsx
file, so there's room for improvement.
---
 ctru-rs/src/lib.rs   |  1 +
 ctru-rs/src/romfs.rs | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 ctru-rs/src/romfs.rs

diff --git a/ctru-rs/src/lib.rs b/ctru-rs/src/lib.rs
index c2c8243..eef067d 100644
--- a/ctru-rs/src/lib.rs
+++ b/ctru-rs/src/lib.rs
@@ -34,6 +34,7 @@ pub mod console;
 pub mod error;
 pub mod gfx;
 pub mod sdmc;
+pub mod romfs;
 pub mod services;
 pub mod srv;
 pub mod thread;
diff --git a/ctru-rs/src/romfs.rs b/ctru-rs/src/romfs.rs
new file mode 100644
index 0000000..09cfaa1
--- /dev/null
+++ b/ctru-rs/src/romfs.rs
@@ -0,0 +1,24 @@
+use std::ffi::CStr;
+
+#[non_exhaustive]
+pub struct RomFS;
+
+impl RomFS {
+    pub fn new() -> crate::Result<Self> {
+        let mount_name = CStr::from_bytes_with_nul(b"romfs\0").unwrap();
+        let result = unsafe { ctru_sys::romfsMountSelf(mount_name.as_ptr()) };
+
+        if result < 0 {
+            Err(result.into())
+        } else {
+            Ok(Self)
+        }
+    }
+}
+
+impl Drop for RomFS {
+    fn drop(&mut self) {
+        let mount_name = CStr::from_bytes_with_nul(b"romfs\0").unwrap();
+        unsafe { ctru_sys::romfsUnmount(mount_name.as_ptr()) };
+    }
+}
\ No newline at end of file