Haskell 将套接字绑定(bind)到特定 IP

Question

在 Haskell network包裹
bindSocket使用 HostAddress和 HostAddress6
定义为:

-- | Network byte order.
type HostAddress = Word32

-- | Host byte order.
type HostAddress6 = (Word32, Word32, Word32, Word32)

我怎样才能从 123.123.123.123到 Word32 ?

我怎样才能从 IPv6字符串到 (Word32, Word32, Word32, Word32) ?

字节序是否在不同的操作系统(Windows、Linux、OS X、FreeBSD)上起作用？

Answer 1

使用 getAddrInfo :

getAddrInfo :: Maybe AddrInfo -> Maybe HostName -> Maybe ServiceName -> IO [AddrInfo]   

Resolve a host or service name to one or more addresses. The AddrInfo values that this function returns contain SockAddr values that you can pass directly to connect or bindSocket.

This function is protocol independent. It can return both IPv4 and IPv6 address information.