pub type clock_t = ::c_ulong;
pub type c_char = i8;
pub type wchar_t = u32;

pub type c_long = i32;
pub type c_ulong = u32;

s! {
    pub struct cmsghdr {
        pub cmsg_len: ::socklen_t,
        pub cmsg_level: ::c_int,
        pub cmsg_type: ::c_int,
    }

    pub struct msghdr {
        pub msg_name: *mut ::c_void,
        pub msg_namelen: ::socklen_t,
        pub msg_iov: *mut ::iovec,
        pub msg_iovlen: ::c_int,
        pub msg_control: *mut ::c_void,
        pub msg_controllen: ::socklen_t,
        pub msg_flags: ::c_int,
    }

    pub struct sockaddr_un {
        pub sun_family: ::sa_family_t,
        pub sun_path: [::c_char; 108],
    }

    pub struct sockaddr {
        pub sa_len: u8,
        pub sa_family: ::sa_family_t,
        pub sa_data: [::c_char; 14],
    }

    pub struct sockaddr_in6 {
        pub sin6_len: u8,
        pub sin6_family: ::sa_family_t,
        pub sin6_port: ::in_port_t,
        pub sin6_flowinfo: u32,
        pub sin6_addr: ::in6_addr,
        pub sin6_scope_id: u32,
    }

    pub struct sockaddr_in {
        pub sin_len: u8,
        pub sin_family: ::sa_family_t,
        pub sin_port: ::in_port_t,
        pub sin_addr: ::in_addr,
        pub sin_zero: [::c_char; 8],
    }

    pub struct sockaddr_storage {
        pub s2_len: u8,
        pub ss_family: ::sa_family_t,
        pub s2_data1: [::c_char; 2],
        pub s2_data2: [u32; 3],
        pub s2_data3: [u32; 3],
    }
}

pub const AF_UNIX: ::c_int = 1;
pub const AF_INET6: ::c_int = 10;

pub const FIONBIO: ::c_ulong = 2147772030;

pub const POLLIN: ::c_short = 1 << 0;
pub const POLLRDNORM: ::c_short = 1 << 1;
pub const POLLRDBAND: ::c_short = 1 << 2;
pub const POLLPRI: ::c_short = POLLRDBAND;
pub const POLLOUT: ::c_short = 1 << 3;
pub const POLLWRNORM: ::c_short = POLLOUT;
pub const POLLWRBAND: ::c_short = 1 << 4;
pub const POLLERR: ::c_short = 1 << 5;
pub const POLLHUP: ::c_short = 1 << 6;

pub const SOL_SOCKET: ::c_int = 0xfff;

pub const MSG_OOB: ::c_int = 0x04;
pub const MSG_PEEK: ::c_int = 0x01;
pub const MSG_DONTWAIT: ::c_int = 0x08;
pub const MSG_DONTROUTE: ::c_int = 0x4;
pub const MSG_WAITALL: ::c_int = 0x02;
pub const MSG_MORE: ::c_int = 0x10;
pub const MSG_NOSIGNAL: ::c_int = 0x20;

pub const PTHREAD_STACK_MIN: ::size_t = 768;

extern "C" {
    pub fn pthread_create(
        native: *mut ::pthread_t,
        attr: *const ::pthread_attr_t,
        f: extern "C" fn(_: *mut ::c_void) -> *mut ::c_void,
        value: *mut ::c_void,
    ) -> ::c_int;

    pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;

    #[link_name = "lwip_sendmsg"]
    pub fn sendmsg(s: ::c_int, msg: *const ::msghdr, flags: ::c_int) -> ::ssize_t;
    #[link_name = "lwip_recvmsg"]
    pub fn recvmsg(s: ::c_int, msg: *mut ::msghdr, flags: ::c_int) -> ::ssize_t;
}
