Enum Prompt 

pub enum Prompt {
    Allowed,
    Never,
}

Whether a missing password may be asked for on the terminal.

Prompting suits a command a person is watching. A daemon has nobody to ask: under systemd there is no controlling terminal so the prompt errors, but run from a shell it blocks on stdin indefinitely — so an unattended caller asks for Prompt::Never and gets an error it can report instead.

Variants

Allowed

Never

Trait Implementations

impl Clone for Prompt

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Prompt

impl Debug for Prompt

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Prompt

impl PartialEq for Prompt

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Prompt