Book Image

Network Programming with Rust

By : Abhishek Chanda
Book Image

Network Programming with Rust

By: Abhishek Chanda

Overview of this book

Rust is low-level enough to provide fine-grained control over memory while providing safety through compile-time validation. This makes it uniquely suitable for writing low-level networking applications. This book is divided into three main parts that will take you on an exciting journey of building a fully functional web server. The book starts with a solid introduction to Rust and essential networking concepts. This will lay a foundation for, and set the tone of, the entire book. In the second part, we will take an in-depth look at using Rust for networking software. From client-server networking using sockets to IPv4/v6, DNS, TCP, UDP, you will also learn about serializing and deserializing data using serde. The book shows how to communicate with REST servers over HTTP. The final part of the book discusses asynchronous network programming using the Tokio stack. Given the importance of security for modern systems, you will see how Rust supports common primitives such as TLS and public-key cryptography. After reading this book, you will be more than confident enough to use Rust to build effective networking software
Table of Contents (11 chapters)

Miscellaneous utilities

In C and C++, a common workflow is to define a set of bits as flags. They are generally defined at powers of two, so the first flag will have the decimal value of one, the second one will have two, and so on. This helps in performing logical combinations of those flags. The Rust ecosystem has a crate to facilitate the same workflow. Let's look at an example of using the bitflags crate for working with flags. Let's start with initializing an empty project using Cargo:

$ cargo new --bin bitflags-example

We will set up our project manifest to add bitflags as a dependency:

$ cat Cargo.toml
name = "bitflags-example"
version = "0.1.0"
authors = ["Foo <[email protected]>"]

bitflags = "1.0"

When all of that is ready, our main file will look like this:

// appendix/bitflags-example/src/