Makes Endianness derive from Debug, PartialEq, Eq, Clone and Copy.

[ithinuel]

Enables us to also use nom to detect endianness and use it in various ways.
Debug allows us to return Endianness and compare it in assert_eq!.

named_args!(parse_header_e(e: Endianness, nsec: bool)<(Endianness, Header)>, tuple!(
    value!(e),
    do_parse!(
        major: u16!(e) >>
        minor: u16!(e) >>
        this_zone: i32!(e) >>
        sigfigs: u32!(e) >>
        snaplen: u32!(e) >>
        network: u32!(e) >>
        (Header {
            major: major,
            minor: minor,
            this_zone: this_zone,
            sigfigs: sigfigs,
            snaplen: snaplen,
            network: network,
            nano_sec: nsec
        })
    )
));

named!(parse_header<(Endianness, Header)>, switch!(be_u32,
    0xa1b2c3d4 => call!(parse_header_e, Endianness::Big, false)    | 
    0xd4c3b2a1 => call!(parse_header_e, Endianness::Little, false) 
));


#[cfg(test)]
mod tests {
    use nom;
    use super::*;
    #[test]
    fn parse_header_le_nsec() {
        let i = b"\x4d\x3c\xb2\xa1\x02\x00\x04\x00\xFF\xFF\xFF\xFF\
                  \x01\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a";
        let h = Header {
            major: 2,
            minor: 4,
            this_zone: -1,
            sigfigs: 1,
            snaplen: 1,
            network: 1,
            nano_sec: true
        };
        assert_eq!(parse_header(&i[..]), nom::IResult::Done(&[10][..], (Endianness::Little, h)));
    }
}

[Geal]

Thanks!

[Geal]

welp, looks like I thanked you but forgot to merge it :p

[ithinuel]

woops, I'm very late on this one !
pcap-rs is now on crates.io : https://crates.io/crates/pcap-rs