Struct Writer 

struct Writer<'a> {
    buf: &'a mut [u8],
    pos: usize,
}

Bounds-checked cursor that appends to a reply buffer.

Fields

buf: &'a mut [u8]

pos: usize

Implementations

impl<'a> Writer<'a>

fn new(buf: &'a mut [u8]) -> Self

Wrap a reply buffer at position 0.

fn put(&mut self, bytes: &[u8]) -> Option<()>

Append raw bytes.

fn zeros(&mut self, len: usize) -> Option<()>

Append len zero bytes.

fn u8(&mut self, value: u8) -> Option<()>

Append one byte.

fn u16(&mut self, value: u16) -> Option<()>

Append a big-endian u16.

fn u32(&mut self, value: u32) -> Option<()>

Append a big-endian u32.

fn ipv4(&mut self, value: Ipv4Address) -> Option<()>

Append an IPv4 address.

fn opt(&mut self, kind: u8, data: &[u8]) -> Option<()>

Append a length-prefixed DHCP option.