getpasswd functionality in Go?

Question

Situation:

I want to get a password entry from the stdin console - without echoing what the user types. Is there something com

Answer 1

Required launching stty via Go ForkExec() function:

package main

import (
    os      "os"
    bufio   "bufio"
    fmt     "fmt"
    str     "strings"
)

func main() {
    fmt.Println();
    if passwd, err := Getpasswd("Enter password: "); err == nil {
        fmt.Printf("\n\nPassword: '%s'\n",passwd)
    }
}

func Getpasswd(prompt string) (passwd string, err os.Error) {
    fmt.Print(prompt);
    const stty_arg0  = "/bin/stty";
    stty_argv_e_off := []string{"stty","-echo"};
    stty_argv_e_on  := []string{"stty","echo"};
    const exec_cwdir = "";
    fd := []*os.File{os.Stdin,os.Stdout,os.Stderr};
    pid, err := os.ForkExec(stty_arg0,stty_argv_e_off,nil,exec_cwdir,fd);
    if err != nil {
        return passwd, os.NewError(fmt.Sprintf("Failed turning off console echo for password entry:\n\t%s",err))
    }
    rd := bufio.NewReader(os.Stdin);
    os.Wait(pid,0);
    line, err := rd.ReadString('\n');
    if err == nil {
        passwd = str.TrimSpace(line)
    } else {
        err = os.NewError(fmt.Sprintf("Failed during password entry: %s",err))
    }
    pid, e := os.ForkExec(stty_arg0,stty_argv_e_on,nil,exec_cwdir,fd);
    if e == nil {
        os.Wait(pid,0)
    } else if err == nil {
        err = os.NewError(fmt.Sprintf("Failed turning on console echo post password entry:\n\t%s",e))
    }
    return passwd, err
}