103 lines
2.5 KiB
Rust
103 lines
2.5 KiB
Rust
#![feature(backtrace)]
|
|
extern crate hptp;
|
|
extern crate tokio;
|
|
#[macro_use]
|
|
extern crate thiserror;
|
|
|
|
use hptp::log::Logger;
|
|
use hptp::msg::Msg;
|
|
use hptp::peer::Peer;
|
|
use std::net::SocketAddr;
|
|
use tokio::io::AsyncRead;
|
|
// use tokio::net::UdpSocket;
|
|
|
|
#[derive(Error, Debug)]
|
|
enum Error {
|
|
#[error("io error: {source}")]
|
|
Io {
|
|
#[from]
|
|
source: tokio::io::Error,
|
|
backtrace: std::backtrace::Backtrace,
|
|
},
|
|
#[error("invalid command-line arguments")]
|
|
InvalidArgs,
|
|
#[error("did not find an available local port")]
|
|
NoAvailPort,
|
|
}
|
|
|
|
fn main() {
|
|
match entry() {
|
|
Err(Error::InvalidArgs) => print_usage(),
|
|
Err(e) => {
|
|
use std::error::Error;
|
|
println!("Error: {:?}", e);
|
|
for bt in e.backtrace() {
|
|
println!("{}", bt);
|
|
}
|
|
}
|
|
Ok(()) => (),
|
|
}
|
|
}
|
|
|
|
fn print_usage() {
|
|
print!("Usage:\n./3700send <host-ip>:<host-port>\n")
|
|
}
|
|
|
|
fn entry() -> Result<(), Error> {
|
|
let mut rt = tokio::runtime::Runtime::new().unwrap();
|
|
let mut log = Logger::new();
|
|
rt.block_on(start(&mut log))
|
|
}
|
|
|
|
async fn start(log: &mut Logger) -> Result<(), Error> {
|
|
let targ_addr = parse_args(std::env::args())?;
|
|
let sock = hptp::udp_retrying_bind(16, hptp::random_port)
|
|
.await
|
|
.map_err(|_| Error::NoAvailPort)?;
|
|
log.debug_msg(format!("bound on {}", sock.local_addr()?))
|
|
.await;
|
|
let mut out = tokio::io::stdin();
|
|
let mut peer = Peer::new(sock);
|
|
peer.set_known_target(targ_addr);
|
|
upload(log, &mut peer, &mut out).await
|
|
}
|
|
|
|
fn parse_args(mut args: impl Iterator<Item = String>) -> Result<SocketAddr, Error> {
|
|
args.nth(1)
|
|
.ok_or(Error::InvalidArgs)?
|
|
.parse()
|
|
.map_err(|_| Error::InvalidArgs)
|
|
}
|
|
|
|
async fn read_some<IN>(inp: &mut IN) -> Result<Option<Vec<u8>>, Error>
|
|
where
|
|
IN: AsyncRead + Unpin,
|
|
{
|
|
use tokio::io::AsyncReadExt;
|
|
let mut buf = [0u8; 512];
|
|
let len = inp.read(&mut buf).await?;
|
|
Ok(if len > 0 {
|
|
Some(buf[..len].into())
|
|
} else {
|
|
None
|
|
})
|
|
}
|
|
|
|
async fn upload<IN>(log: &mut Logger, peer: &mut Peer, inp: &mut IN) -> Result<(), Error>
|
|
where
|
|
IN: AsyncRead + Unpin,
|
|
{
|
|
let mut pos = 0;
|
|
loop {
|
|
match read_some(inp).await? {
|
|
Some(data) => {
|
|
let len = data.len();
|
|
peer.send(Msg::Data(data)).await?;
|
|
log.send_data(pos, len).await;
|
|
pos += len;
|
|
}
|
|
None => return Ok(()),
|
|
}
|
|
}
|
|
}
|