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

This Go program performs MAC address lookups using an external API and prints the results. Here's a detailed explanation of the code:

1. Package Declaration: The program starts by declaring the main package, which is the entry point for Go programs.

2. Import Statements: The program imports the following standard library packages:

   • net/http: For making HTTP requests to the MAC address lookup API.
   • fmt: For printing the results.
   • io/ioutil: For reading the response body from the API.

3. macLookUp Function: This function takes a MAC address as a string parameter and returns the corresponding vendor name as a string.

   • It sends an HTTP GET request to the "http://api.macvendors.com/" URL, appending the provided MAC address to the URL path.
   • It reads the response body using ioutil.ReadAll and stores it in the body variable.
   • Finally, it converts the response body into a string and returns it.

4. main Function:

   • This function is the starting point of the program.
   • It calls the macLookUp function three times, each with a different MAC address.
   • The results are printed to the console using fmt.Println.

In summary, this program uses the macvendors.com API to look up vendor names based on MAC addresses and prints the results.

package main

import (
	"net/http"
	"fmt"
	"io/ioutil"
)

func macLookUp(mac string) (res string){
	resp, _ := http.Get("http://api.macvendors.com/" + mac)
	body, _ := ioutil.ReadAll(resp.Body)
	res = string(body)
	return
}

func main()  {
	fmt.Println(macLookUp("FC-A1-3E"))
	fmt.Println(macLookUp("FC:FB:FB:01:FA:21"))
	fmt.Println(macLookUp("BC:5F:F4"))
}