module net

// TODO: test this on NetBSD

#include <sys/socket.h>
#include <netinet/in.h>

const max_unix_path = 104

pub struct C.addrinfo {
mut:
    ai_family    int
    ai_socktype  int
    ai_flags     int
    ai_protocol  int
    ai_addrlen   int
    ai_addr      voidptr
    ai_canonname voidptr
    ai_next      voidptr
}

pub struct C.sockaddr_in6 {
mut:
    // 1 + 1 + 2 + 4 + 16 + 4 = 28;
    sin6_len      u8     // 1
    sin6_family   u8     // 1
    sin6_port     u16    // 2
    sin6_flowinfo u32    // 4
    sin6_addr     [16]u8 // 16
    sin6_scope_id u32    // 4
}

pub struct C.sockaddr_in {
mut:
    sin_len    u8
    sin_family u8
    sin_port   u16
    sin_addr   u32
    sin_zero   [8]char
}

pub struct C.sockaddr_un {
mut:
    sun_len    u8
    sun_family u8
    sun_path   [max_unix_path]char
}

@[_pack: '1']
pub struct Ip6 {
    port      u16
    flow_info u32
    addr      [16]u8
    scope_id  u32
}

@[_pack: '1']
pub struct Ip {
    port u16
    addr [4]u8
    // Pad to size so that socket functions
    // dont complain to us (see  in.h and bind())
    // TODO(emily): I would really like to use
    // some constant calculations here
    // so that this doesnt have to be hardcoded
    sin_pad [8]u8
}

pub struct Unix {
    path [max_unix_path]char
}

@[_pack: '1']
pub struct Addr {
pub:
    len  u8
    f    u8
    addr AddrData
}