use core::{fmt, str::FromStr};
use crate::parser;
/// MAC address in *EUI-64* format.
#[repr(C)]
#[derive(Debug, Default, Hash, Eq, PartialEq, Ord, PartialOrd, Copy, Clone)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct MacAddr8([u8; 8]);
impl MacAddr8 {
/// Creates a new `MacAddr8` address from the bytes.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF);
/// ```
#[allow(clippy::many_single_char_names, clippy::too_many_arguments)]
pub const fn new(a: u8, b: u8, c: u8, d: u8, e: u8, f: u8, g: u8, h: u8) -> MacAddr8 {
MacAddr8([a, b, c, d, e, f, g, h])
}
/// Create a new nil `MacAddr8`.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::nil();
/// assert!(addr.is_nil());
/// ```
pub const fn nil() -> MacAddr8 {
MacAddr8([0x00; 8])
}
/// Create a new broadcast `MacAddr8`.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::broadcast();
/// assert!(addr.is_broadcast());
/// ```
pub const fn broadcast() -> MacAddr8 {
MacAddr8([0xFF; 8])
}
/// Returns `true` if the address is nil.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
///
/// assert_eq!(addr.is_nil(), true);
/// ```
#[allow(clippy::trivially_copy_pass_by_ref)]
pub fn is_nil(&self) -> bool {
self.0.iter().all(|&b| b == 0)
}
/// Returns `true` if the address is broadcast.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF);
///
/// assert_eq!(addr.is_broadcast(), true);
/// ```
#[allow(clippy::trivially_copy_pass_by_ref)]
pub fn is_broadcast(&self) -> bool {
self.0.iter().all(|&b| b == 0xFF)
}
/// Returns `true` if the address is unicast.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0x00, 0x01, 0x44, 0x55, 0x66, 0x77, 0xCD, 0xEF);
///
/// assert_eq!(addr.is_unicast(), true);
/// ```
#[allow(clippy::trivially_copy_pass_by_ref)]
pub const fn is_unicast(&self) -> bool {
self.0[0] & 1 == 0
}
/// Returns `true` if the address is multicast.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0x01, 0x00, 0x0C, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC);
///
/// assert_eq!(addr.is_multicast(), true);
/// ```
#[allow(clippy::trivially_copy_pass_by_ref)]
pub const fn is_multicast(&self) -> bool {
self.0[0] & 1 == 1
}
/// Returns `true` if the address is universally administered address (UAA).
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0x01, 0x00, 0x0C, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC);
///
/// assert_eq!(addr.is_universal(), true);
/// ```
#[allow(clippy::trivially_copy_pass_by_ref)]
pub const fn is_universal(&self) -> bool {
self.0[0] & 1 << 1 == 0
}
/// Returns `true` if the address is locally administered (LAA).
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0x02, 0x00, 0x0C, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC);
///
/// assert_eq!(addr.is_local(), true);
/// ```
#[allow(clippy::trivially_copy_pass_by_ref)]
pub const fn is_local(&self) -> bool {
self.0[0] & 1 << 1 == 2
}
/// Converts a `MacAddr8` address to a byte slice.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0xAC, 0xDE, 0x48, 0x23, 0x45, 0x67, 0x89, 0xAB);
///
/// assert_eq!(addr.as_bytes(), &[0xAC, 0xDE, 0x48, 0x23, 0x45, 0x67, 0x89, 0xAB]);
/// ```
pub fn as_bytes(&self) -> &[u8] {
&self.0
}
/// Consumes a `MacAddr8` address and returns raw bytes.
///
/// ## Example
///
/// ```rust
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0xAC, 0xDE, 0x48, 0x23, 0x45, 0x67, 0x89, 0xAB);
///
/// assert_eq!(addr.into_array(), [0xAC, 0xDE, 0x48, 0x23, 0x45, 0x67, 0x89, 0xAB]);
/// ```
pub const fn into_array(self) -> [u8; 8] {
self.0
}
}
impl FromStr for MacAddr8 {
type Err = parser::ParseError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
parser::Parser::new(s).read_v8_addr()
}
}
impl From<[u8; 8]> for MacAddr8 {
fn from(bytes: [u8; 8]) -> Self {
MacAddr8(bytes)
}
}
impl AsRef<[u8]> for MacAddr8 {
fn as_ref(&self) -> &[u8] {
&self.0
}
}
impl AsMut<[u8]> for MacAddr8 {
fn as_mut(&mut self) -> &mut [u8] {
&mut self.0
}
}
/// `MacAddr8` can be displayed in different formats.
///
/// # Example
///
/// ```
/// # use macaddr::MacAddr8;
/// let addr = MacAddr8::new(0xab, 0x0d, 0xef, 0x12, 0x34, 0x56, 0x78, 0x9A);
///
/// assert_eq!(&format!("{}", addr), "AB:0D:EF:12:34:56:78:9A");
/// assert_eq!(&format!("{:-}", addr), "AB-0D-EF-12-34-56-78-9A");
/// assert_eq!(&format!("{:#}", addr), "AB0D.EF12.3456.789A");
/// ```
impl fmt::Display for MacAddr8 {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
if f.sign_minus() {
f.write_fmt(format_args!(
"{:02X}-{:02X}-{:02X}-{:02X}-{:02X}-{:02X}-{:02X}-{:02X}",
self.0[0], self.0[1], self.0[2], self.0[3], self.0[4], self.0[5], self.0[6], self.0[7],
))
} else if f.alternate() {
f.write_fmt(format_args!(
"{:02X}{:02X}.{:02X}{:02X}.{:02X}{:02X}.{:02X}{:02X}",
self.0[0], self.0[1], self.0[2], self.0[3], self.0[4], self.0[5], self.0[6], self.0[7],
))
} else {
f.write_fmt(format_args!(
"{:02X}:{:02X}:{:02X}:{:02X}:{:02X}:{:02X}:{:02X}:{:02X}",
self.0[0], self.0[1], self.0[2], self.0[3], self.0[4], self.0[5], self.0[6], self.0[7],
))
}
}
}