func main() {
t, err := pam.StartFunc("", "", func(s pam.Style, msg string) (string, error) {
switch s {
case pam.PromptEchoOff:
return gopass.GetPass(msg)
case pam.PromptEchoOn:
fmt.Print(msg + " ")
input, err := bufio.NewReader(os.Stdin).ReadString('\n')
if err != nil {
return "", err
}
return input[:len(input)-1], nil
case pam.ErrorMsg:
log.Print(msg)
return "", nil
case pam.TextInfo:
fmt.Println(msg)
return "", nil
}
return "", errors.New("Unrecognized message style")
})
if err != nil {
log.Fatalf("Start: %s", err.Error())
}
err = t.Authenticate(0)
if err != nil {
log.Fatalf("Authenticate: %s", err.Error())
}
log.Print("Authentication succeeded!")
}
func PAMAuth(serviceName, userName, passwd string) error {
t, err := pam.StartFunc(serviceName, userName, func(s pam.Style, msg string) (string, error) {
switch s {
case pam.PromptEchoOff:
return passwd, nil
case pam.PromptEchoOn, pam.ErrorMsg, pam.TextInfo:
return "", nil
}
return "", errors.New("Unrecognized PAM message style")
})
if err != nil {
return err
}
if err = t.Authenticate(0); err != nil {
return err
}
return nil
}