asterinas/kernel/src/syscall/connect.rs

33 lines
959 B
Rust

// SPDX-License-Identifier: MPL-2.0
use super::SyscallReturn;
use crate::{
fs::file_table::{get_file_fast, FileDesc},
prelude::*,
util::net::read_socket_addr_from_user,
};
pub fn sys_connect(
sockfd: FileDesc,
sockaddr_ptr: Vaddr,
addr_len: u32,
ctx: &Context,
) -> Result<SyscallReturn> {
let socket_addr = read_socket_addr_from_user(sockaddr_ptr, addr_len as _)?;
debug!("fd = {sockfd}, socket_addr = {socket_addr:?}");
let mut file_table = ctx.thread_local.borrow_file_table_mut();
let file = get_file_fast!(&mut file_table, sockfd);
let socket = file.as_socket_or_err()?;
socket
.connect(socket_addr)
.map_err(|err| match err.error() {
// FIXME: `connect` should not be restarted if a timeout has been set on the socket using `setsockopt`.
Errno::EINTR => Error::new(Errno::ERESTARTSYS),
_ => err,
})?;
Ok(SyscallReturn::Return(0))
}