wasmer_wasix/syscalls/wasix/
port_mac.rs

1use super::*;
2use crate::syscalls::*;
3
4/// ### `port_mac()`
5/// Returns the MAC address of the local port
6#[instrument(level = "trace", skip_all, fields(max = field::Empty), ret)]
7pub fn port_mac<M: MemorySize>(
8    mut ctx: FunctionEnvMut<'_, WasiEnv>,
9    ret_mac: WasmPtr<__wasi_hardwareaddress_t, M>,
10) -> Result<Errno, WasiError> {
11    WasiEnv::do_pending_operations(&mut ctx)?;
12
13    let mut env = ctx.data();
14    let mut memory = unsafe { env.memory_view(&ctx) };
15
16    let net = env.net().clone();
17    let mac = wasi_try_ok!(__asyncify(&mut ctx, None, async {
18        net.mac().await.map_err(net_error_into_wasi_err)
19    })?);
20    let env = ctx.data();
21    let memory = unsafe { env.memory_view(&ctx) };
22
23    Span::current().record("mac", hex::encode(mac.as_ref()).as_str());
24
25    let mac = __wasi_hardwareaddress_t { octs: mac };
26    wasi_try_mem_ok!(ret_mac.write(&memory, mac));
27    Ok(Errno::Success)
28}