A simple command-line interface (CLI) Bittorrent client written in Rust. This client allows you to download files using the Bittorrent protocol directly from the terminal.

• info <.torrent file>le>: Displays information about the torrent file.
• download_piece -o
  <.torrent file> lt;piece index>
  : Downloads a specific piece of the torrent and saves it to the output file.
• decode ue>: Decodes a Bencode-encoded value and displays the result.
• peers <.torrent file>le>: Lists the peers associated with the torrent file.
• handshake <.torrent file> eer_port>: Performs a handshake with peers for the given torrent file.
• download -o
  <.torrent file>ent file>
  : Downloads the entire torrent and saves it to the output file.
• magnet_parse nk>: Parses a magnet link and displays its components.
• magnet_handshake nk> : Performs a handshake with peer from the given magnet link and prints the peer ID.

1. Make sure you have Rust installed. You can install Rust using rustup.
2. Clone this repository:

   git clone https://github.com/arjav0703/bittorrent-rust.git
     cd bittorrent-rust
3. Build the project:

   cargo build --release
4. The compiled binary will be located in the target/release directory.

   target/release/bittorrent-client
   
   

Install the program with the above steps and run the following example commands:

1. Decode a bencoded value:

   # A Dictionary
   ./target/release/bittorrent-client decode  "d3:cati1e4:spam3:fooe"
2. Display torrent info:

   ./target/release/bittorrent-client info ./sample.torrent
3. List peers:

   ./target/release/bittorrent-client peers ./sample.torrent
4. Download a specific piece:

   ./target/release/bittorrent-client download_piece -o piece_0.bin ./sample.torrent 0
5. Perform a handshake with a peer:

   ./target/release/bittorrent-client handshake ./sample.torrent
6. Download the entire torrent:

   ./target/release/bittorrent-client download -o output_file.bin ./sample.torrent
7. Parse a magnet link:

   ./target/release/bittorrent-client magnet_parse "magnet:?xt=urn:btih:ad42ce8109f54c99613ce38f9b4d87e70f24a165&dn=magnet1.gif&tr=http%3A%2F%2Fbittorrent-test-tracker.codecrafters.io%2Fannounceannounce"
8. Perform a handshake using a magnet link:

   ./target/release/bittorrent-client magnet_handshake "magnet:?xt=urn:btih:ad42ce8109f54c99613ce38f9b4d87e70f24a165&dn=magnet1.gif&tr=http%3A%2F%2Fbittorrent-test-tracker.codecrafters.io%2Fannounceannounce"