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Default bind to IPv6 socket if connecting to server over IPv6

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Fixes #37
This commit is contained in:
Frank Denis 2019-10-13 12:57:32 +02:00
parent 7bd2bf2131
commit 37d40e88a3
1 changed files with 14 additions and 9 deletions
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23
src/main.rs
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@ -17,7 +17,7 @@ use hyper::server::conn::Http;
use hyper::service::Service;
use hyper::{Body, Method, Request, Response, StatusCode};
use std::io;
use std::net::{SocketAddr, ToSocketAddrs};
use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6, ToSocketAddrs};
#[cfg(feature = "tls")]
use native_tls::{self, Identity};
@ -43,7 +43,6 @@ use tokio_tls::TlsAcceptor;
const BLOCK_SIZE: usize = 128;
const DNS_QUERY_PARAM: &str = "dns";
const LISTEN_ADDRESS: &str = "127.0.0.1:3000";
const LOCAL_BIND_ADDRESS: &str = "0.0.0.0:0";
const MAX_CLIENTS: usize = 512;
const MAX_DNS_QUESTION_LEN: usize = 512;
const MAX_DNS_RESPONSE_LEN: usize = 4096;
@ -442,7 +441,7 @@ fn main() {
tls_cert_password: None,
listen_address: LISTEN_ADDRESS.parse().unwrap(),
local_bind_address: LOCAL_BIND_ADDRESS.parse().unwrap(),
local_bind_address: SocketAddr::new(IpAddr::V4(Ipv4Addr::UNSPECIFIED), 0),
server_address: SERVER_ADDRESS.parse().unwrap(),
path: PATH.to_string(),
max_clients: MAX_CLIENTS,
@ -524,7 +523,6 @@ fn parse_opts(inner_doh: &mut InnerDoH) {
.short("b")
.long("local-bind-address")
.takes_value(true)
.default_value(LOCAL_BIND_ADDRESS)
.validator(verify_sock_addr)
.help("Address to connect from"),
)
@ -616,11 +614,18 @@ fn parse_opts(inner_doh: &mut InnerDoH) {
.unwrap()
.next()
.unwrap();
inner_doh.local_bind_address = matches
.value_of("local_bind_address")
.unwrap()
.parse()
.unwrap();
inner_doh.local_bind_address = match matches.value_of("local_bind_address") {
Some(address) => address.parse().unwrap(),
None => match inner_doh.server_address {
SocketAddr::V4(_) => SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::UNSPECIFIED, 0)),
SocketAddr::V6(s) => SocketAddr::V6(SocketAddrV6::new(
Ipv6Addr::UNSPECIFIED,
0,
s.flowinfo(),
s.scope_id(),
)),
},
};
inner_doh.path = matches.value_of("path").unwrap().to_string();
if !inner_doh.path.starts_with('/') {
inner_doh.path = format!("/{}", inner_doh.path);