How to capture username and password from a terminal session in golang (cross-platform)

main.go

// adapted from the "best" solution supplied by StackExchange user gihanchanuka:
// https://stackoverflow.com/questions/2137357/getpasswd-functionality-in-go
//
// Tested in Windows Powershell and Windows cmd

package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"os/signal"
	"strings"
	"syscall"
	
	"golang.org/x/crypto/ssh/terminal"
)

func credentials() (string, string) {
	// Initialize the input reader for username
	reader := bufio.NewReader(os.Stdin)

	// Get the username
	fmt.Print("Enter Username: ")
	username, _ := reader.ReadString('\n')

	// Get the terminal descriptor
	termFd := int(syscall.Stdin)

	// Get the terminal state
	termState, err := terminal.GetState(termFd)
	if err != nil {
		log.Fatal("error gettting terminal state: %v", err)
	}

	// Restore the terminal state iff the process terminates
	// during password capture
	cancelC := make(chan bool)
	signalC := make(chan os.Signal)
	signal.Notify(signalC, os.Interrupt, os.Kill)
	go func() {
		select {
		case <-cancelC:
			signal.Stop(signalC)
			fmt.Println("")
		case <-signalC:
			terminal.Restore(termFd, termState)
			os.Exit(2)
		}
	}()

	// Clear the signal capture after function naturaly ends
	defer func() {
		cancelC <- true
	}()

	// Capture password
	fmt.Print("Enter Password: ")
	bytePassword, err := terminal.ReadPassword(termFd)
	if err != nil {
		log.Fatal("error reading password")
	}
	password := string(bytePassword)

	return strings.TrimSpace(username), strings.TrimSpace(password)
}

func main() {
	username, password := credentials()
	fmt.Println("username: " + username + ", password: " + password)
}