wasmer_wasix/syscalls/wasix/
sock_get_opt_flag.rs

1use super::*;
2use crate::syscalls::*;
3
4/// ### `sock_get_opt_flag()`
5/// Retrieve status of particular socket seting
6/// Note: This is similar to `getsockopt` in POSIX for SO_REUSEADDR
7///
8/// ## Parameters
9///
10/// * `fd` - Socket descriptor
11/// * `sockopt` - Socket option to be retrieved
12#[instrument(level = "trace", skip_all, fields(%sock, %opt), ret)]
13pub fn sock_get_opt_flag<M: MemorySize>(
14    mut ctx: FunctionEnvMut<'_, WasiEnv>,
15    sock: WasiFd,
16    opt: Sockoption,
17    ret_flag: WasmPtr<Bool, M>,
18) -> Errno {
19    let option: crate::net::socket::WasiSocketOption = opt.into();
20    let flag = wasi_try!(__sock_actor(
21        &mut ctx,
22        sock,
23        Rights::empty(),
24        |socket, _| socket.get_opt_flag(option)
25    ));
26
27    let env = ctx.data();
28    let memory = unsafe { env.memory_view(&ctx) };
29    let flag = match flag {
30        false => Bool::False,
31        true => Bool::True,
32    };
33
34    wasi_try_mem!(ret_flag.write(&memory, flag));
35
36    Errno::Success
37}

wasmer_wasix/syscalls/wasix/sock_get_opt_flag.rs

wasmer_wasix/syscalls/wasix/
sock_get_opt_flag.rs