alnyan/yggdrasil: add Yggdrasil getrandom

Cargo.toml

@@ -23,6 +23,9 @@ libc = { version = "0.2.149", default-features = false }
 [target.'cfg(target_os = "wasi")'.dependencies]
 wasi = { version = "0.11", default-features = false }
 
+[target.'cfg(target_os = "yggdrasil")'.dependencies]
+yggdrasil-rt = { git = "https://git.alnyan.me/yggdrasil/yggdrasil-rt.git" }
+
 [target.'cfg(all(any(target_arch = "wasm32", target_arch = "wasm64"), target_os = "unknown"))'.dependencies]
 wasm-bindgen = { version = "0.2.62", default-features = false, optional = true }
 js-sys = { version = "0.3", optional = true }

src/lib.rs

@@ -284,6 +284,8 @@ cfg_if! {
     } else if #[cfg(target_os = "hurd")] {
         mod util_libc;
         #[path = "hurd.rs"] mod imp;
+    } else if #[cfg(target_os = "yggdrasil")] {
+        #[path = "yggdrasil.rs"] mod imp;
     } else if #[cfg(feature = "custom")] {
         use custom as imp;
     } else if #[cfg(all(any(target_arch = "wasm32", target_arch = "wasm64"),

src/yggdrasil.rs

@@ -0,0 +1,7 @@
+use core::mem::MaybeUninit;
+
+use crate::Error;
+
+pub(crate) fn getrandom_inner(buffer: &mut [MaybeUninit<u8>]) -> Result<(), Error> {
+    Ok(unsafe { yggdrasil_rt::sys::get_random(crate::util::slice_assume_init_mut(buffer)) })
+}