How to resolve the algorithm MAC vendor lookup step by step in the Rust programming language

Published on 12 May 2024 09:40 PM
#Rust

How to resolve the algorithm MAC vendor lookup step by step in the Rust programming language

Table of Contents

Problem Statement

Every connected device around the world comes with a unique Media Access Control address, or a   MAC address. A common task a network administrator may come across is being able to identify a network device's manufacturer when given only a MAC address.

Interface with one (or numerous) APIs that exist on the internet and retrieve the device manufacturer based on a supplied MAC address. A MAC address that does not return a valid result should return the String "N/A".   An error related to the network connectivity or the API should return a null result. Many implementations on this page use http://api.macvendors.com/ which, as of 19th September 2021, is throttling requests. After only 2 calls, the following response is returned for all subsequent requests. If you are planning to use the same provider or going to run the examples on this page, consider building in a delay between two calls. {"errors":{"detail":"Too Many Requests","message":"Please slow down your requests or upgrade your plan at https://macvendors.com"}}

Let's start with the solution:

Step by Step solution about How to resolve the algorithm MAC vendor lookup step by step in the Rust programming language

Source code in the rust programming language

extern crate reqwest;

use std::{thread, time};

fn get_vendor(mac: &str) -> Option<String> {
    let mut url = String::from("http://api.macvendors.com/");
    url.push_str(mac);
    let url_ref = &url;
    match reqwest::get(url_ref) {
        Ok(mut res) => match res.text() {
            Ok(text) => {
                if text.contains("Not Found") {
                    Some("N/A".to_string())
                } else {
                    Some(text)
                }
            }
            Err(e) => {
                println!("{:?}", e);
                None
            }
        },
        Err(e) => {
            println!("{:?}", e);
            None
        }
    }
}

fn main() {
    let duration = time::Duration::from_millis(1000);
    match get_vendor("88:53:2E:67:07:BE") {
        None => println!("Error!"),
        Some(text) => println!("{}", text),
    }
    thread::sleep(duration);
    match get_vendor("FC:FB:FB:01:FA:21") {
        None => println!("Error!"),
        Some(text) => println!("{}", text),
    }
    thread::sleep(duration);
    match get_vendor("FC-A1-3E") {
        None => println!("Error!"),
        Some(text) => println!("{}", text),
    }
    thread::sleep(duration);
    match get_vendor("abcdefg") {
        None => println!("Error!"),
        Some(text) => println!("{}", text),
    }
}

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