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#![cfg(target_os = "ios")]
#![allow(clippy::undocumented_unsafe_blocks)]
use libc::c_char;
use std::ffi::CStr;
use std::sync::OnceLock;
use tokio::runtime::{Builder, Handle, Runtime};
mod api_client;
mod encrypted_dns_proxy;
mod ephemeral_peer_proxy;
mod shadowsocks_proxy;
pub mod tunnel_obfuscator_proxy;
#[repr(C)]
pub struct ProxyHandle {
pub context: *mut std::ffi::c_void,
pub port: u16,
}
#[unsafe(no_mangle)]
pub static CONFIG_SERVICE_PORT: u16 = talpid_tunnel_config_client::CONFIG_SERVICE_PORT;
static RUNTIME: OnceLock<Result<Runtime, String>> = OnceLock::new();
fn mullvad_ios_runtime() -> Result<Handle, String> {
match RUNTIME.get_or_init(|| {
Builder::new_multi_thread()
.enable_all()
.build()
.map_err(|error| ToString::to_string(&error))
}) {
Ok(runtime) => Ok(runtime.handle().clone()),
Err(error) => Err(error.clone()),
}
}
/// Try to convert a C string to an owned [String]. if `ptr` is null, an empty [String] is
/// returned.
///
/// # Safety
/// - `ptr` must uphold all safety invariants as required by [CStr::from_ptr].
unsafe fn get_string(ptr: *const c_char) -> String {
if ptr.is_null() {
return String::new();
}
// Safety: See function doc comment.
let cstr = unsafe { CStr::from_ptr(ptr) };
cstr.to_str().map(ToOwned::to_owned).unwrap_or_default()
}
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