Begin CLI Work

Uses the Parser module + it sets up a help & version.

Cargo.lock

@@ -20,6 +20,55 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ca84f3628370c59db74ee214b3263d58f9aadd9b4fe7e711fd87dc452b7f163"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is-terminal",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41ed9a86bf92ae6580e0a31281f65a1b1d867c0cc68d5346e2ae128dddfa6a7d"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e765fd216e48e067936442276d1d57399e37bce53c264d6fefbe298080cb57ee"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
+dependencies = [
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "180abfa45703aebe0093f79badacc01b8fd4ea2e35118747e5811127f926e188"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.71"
@@ -92,6 +141,7 @@ checksum = "3c6ed94e98ecff0c12dd1b04c15ec0d7d9458ca8fe806cea6f12954efe74c63b"
 name = "burrow"
 version = "0.1.0"
 dependencies = [
+ "clap",
  "tokio",
  "tun",
 ]
@@ -173,6 +223,40 @@ dependencies = [
  "libloading",
 ]
 
+[[package]]
+name = "clap"
+version = "4.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "401a4694d2bf92537b6867d94de48c4842089645fdcdf6c71865b175d836e9c2"
+dependencies = [
+ "clap_builder",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72394f3339a76daf211e57d4bcb374410f3965dcc606dd0e03738c7888766980"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "bitflags",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2da6da31387c7e4ef160ffab6d5e7f00c42626fe39aea70a7b0f1773f7dd6c1b"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
@@ -566,6 +650,18 @@ version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "12b6ee2129af8d4fb011108c73d99a1b83a85977f23b82460c0ae2e25bb4b57f"
 
+[[package]]
+name = "is-terminal"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
+dependencies = [
+ "hermit-abi",
+ "io-lifetimes",
+ "rustix",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.6"
@@ -1117,6 +1213,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
 [[package]]
 name = "subtle"
 version = "2.4.1"
@@ -1365,6 +1467,12 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"

burrow/Cargo.toml

@@ -9,3 +9,4 @@ crate-type = ["lib", "staticlib"]
 [dependencies]
 tokio = { version = "1.21", features = ["rt", "macros"] }
 tun = { version = "0.1", path = "../tun" }
+clap = "4.3.2"

burrow/src/main.rs

@@ -1,6 +1,15 @@
+use clap::Parser;
 use tokio::io::Result;
 use tun::TunInterface;
 
+#[derive(Parser)]
+#[command(name = "Burrow")]
+#[command(author = "Hack Club <team@hackclub.com>")]
+#[command(version = "0.1")]
+#[command(about = "Burrow is a tool for burrowing through firewalls, built by teenagers at Hack Club.", long_about = None)]
+
+struct Cli {}
+
 async fn try_main() -> Result<()> {
     let iface = TunInterface::new()?;
     println!("{:?}", iface.name());
@@ -10,5 +19,6 @@ async fn try_main() -> Result<()> {
 
 #[tokio::main(flavor = "current_thread")]
 async fn main() {
+    let cli = Cli::parse();
     try_main().await.unwrap();
 }

tun/src/unix/linux/mod.rs

@@ -4,7 +4,7 @@ use socket2::{Domain, SockAddr, Socket, Type};
 use std::fs::OpenOptions;
 use std::io::{Error, Write};
 use std::mem;
-use std::net::{Ipv4Addr, Ipv6Addr, SocketAddrV4, SocketAddrV6};
+use std::net::{Ipv4Addr, Ipv6Addr, SocketAddrV4};
 use std::os::fd::RawFd;
 use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd};