Interface SocketAddrExt

api/src/socket.rs:20–31

Trait to extend [`SocketAddr`] and its variants with methods for reading from and writing to user space.

/// Trait to extend [`SocketAddr`] and its variants with methods for reading
/// from and writing to user space.
pub trait SocketAddrExt: Sized {
    /// This method attempts to interpret the data pointed to by `addr` with the
    /// given `addrlen` as a valid socket address of the implementing type.
    fn read_from_user(addr: UserConstPtr<sockaddr>, addrlen: socklen_t) -> AxResult<Self>;

    /// This method serializes the current socket address instance into the
    /// [`sockaddr`] structure pointed to by `addr` in user space.
    fn write_to_user(&self, addr: UserPtr<sockaddr>, addrlen: &mut socklen_t) -> AxResult<()>;

    /// Gets the address family of the socket address.
    fn family(&self) -> u16;
}

fn read_family(addr: UserConstPtr<sockaddr>, addrlen: socklen_t) -> AxResult<u16> {
    if size_of::<__kernel_sa_family_t>() > addrlen as usize {