Red Bear OS
22 lines
547 B
Rust
22 lines
547 B
Rust
use std::{
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fs::File,
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io::{self, prelude::*},
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os::unix::io::{AsRawFd, FromRawFd, RawFd},
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};
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fn from_syscall_error(error: syscall::Error) -> io::Error {
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io::Error::from_raw_os_error(error.errno as i32)
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}
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fn main() -> io::Result<()> {
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let server = File::create("chan:hello")?;
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loop {
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let stream =
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syscall::dup(server.as_raw_fd() as usize, b"listen").map_err(from_syscall_error)?;
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let mut stream = unsafe { File::from_raw_fd(stream as RawFd) };
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stream.write(b"Hello World!\n")?;
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}
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}
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