Golang – Obfuscate password input

This recipe shows how to obfuscate the password when user is typing the password.

package p1

import (
	"fmt"
	"log"
	"os"

	"golang.org/x/crypto/ssh/terminal"
)

func getPassword() string {
	fmt.Println("\nPassword: ")
	// https://godoc.org/golang.org/x/crypto/ssh/terminal#ReadPassword
	// terminal.ReadPassword accepts file descriptor as argument, returns byte slice and error.
	passwd, e := terminal.ReadPassword(int(os.Stdin.Fd()))
	if e != nil {
		log.Fatal(e)
	}
	// Type cast byte slice to string.
	return string(passwd)
}

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