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use std::error;
use std::fmt;
use rusb::Error as usbError;
use std::io::Error as ioError;
#[derive(Debug)]
pub enum YubicoError {
IOError(ioError),
UsbError(usbError),
CommandNotSupported,
DeviceNotFound,
OpenDeviceError,
CanNotWriteToDevice,
WrongCRC,
ConfigNotWritten,
}
impl fmt::Display for YubicoError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
YubicoError::IOError(ref err) => write!(f, "IO error: {}", err),
YubicoError::UsbError(ref err) => write!(f, "USB error: {}", err),
YubicoError::DeviceNotFound => write!(f, "Device not found"),
YubicoError::OpenDeviceError => write!(f, "Can not open device"),
YubicoError::CommandNotSupported => write!(f, "Command Not Supported"),
YubicoError::WrongCRC => write!(f, "Wrong CRC"),
YubicoError::CanNotWriteToDevice => write!(f, "Can not write to Device"),
YubicoError::ConfigNotWritten => write!(f, "Configuration has failed"),
}
}
}
impl error::Error for YubicoError {
fn cause(&self) -> Option<& dyn error::Error> {
match *self {
YubicoError::UsbError(ref err) => Some(err),
_ => None
}
}
}
impl From<ioError> for YubicoError {
fn from(err: ioError) -> YubicoError {
YubicoError::IOError(err)
}
}
impl From<usbError> for YubicoError {
fn from(err: usbError) -> YubicoError {
YubicoError::UsbError(err)
}
}