pub fn netstring(at: &[u8]) -> Result<(&[u8], &[u8]), String>Expand description
Takes a netstring from the front of the slice.
Returns the unpacked netstring and the remainder of the slice.
NB: Netstring encoding is not included as a separate function
because it is as simple as wite! (&mut buf, (payload.len()) ':' (payload) ',')?;.