use byteorder::{BigEndian, LittleEndian};
use crate::{
Endianness,
errors::*,
pcap::Packet,
pcap::PcapHeader
};
#[derive(Debug)]
pub struct PcapParser {
header: PcapHeader
}
impl PcapParser {
pub fn new(slice: &[u8]) -> ResultParsing<(&[u8], PcapParser)> {
let (slice, header) = PcapHeader::from_slice(slice)?;
let parser = PcapParser {
header
};
Ok((slice, parser))
}
pub fn next_packet<'a>(&self, slice: &'a[u8]) -> ResultParsing<(&'a [u8], Packet<'a>)> {
let ts_resolution = self.header.ts_resolution();
match self.header.endianness() {
Endianness::Big => Packet::from_slice::<BigEndian>(slice, ts_resolution),
Endianness::Little => Packet::from_slice::<LittleEndian>(slice, ts_resolution)
}
}
}