Adds socket creation for arbitrary domain, type and protocol.

lib/pure/asyncdispatch.nim

@@ -766,6 +766,12 @@ when defined(windows) or defined(nimdoc):
 
     return retFuture
 
+  proc newAsyncRawSocket*(domain, typ, protocol: cint): TAsyncFD =
+    ## Creates a new socket and registers it with the dispatcher implicitly.
+    result = newRawSocket(domain, typ, protocol).TAsyncFD
+    result.SocketHandle.setBlocking(false)
+    register(result)
+
   proc newAsyncRawSocket*(domain: Domain = AF_INET,
                typ: SockType = SOCK_STREAM,
                protocol: Protocol = IPPROTO_TCP): TAsyncFD =
@@ -832,6 +838,11 @@ else:
     var data = PData(sock: sock, readCBs: @[], writeCBs: @[])
     p.selector.register(sock.SocketHandle, {}, data.PObject)
 
+  proc newAsyncRawSocket*(domain: cint, typ: cint, protocol: cint): TAsyncFD =
+    result = newRawSocket(domain, typ, protocol).TAsyncFD
+    result.SocketHandle.setBlocking(false)
+    register(result)
+
   proc newAsyncRawSocket*(domain: TDomain = AF_INET,
                typ: TType = SOCK_STREAM,
                protocol: TProtocol = IPPROTO_TCP): TAsyncFD =

lib/pure/asyncnet.nim

@@ -101,6 +101,10 @@ proc newAsyncSocket*(domain: TDomain = AF_INET, typ: TType = SOCK_STREAM,
   ## Creates a new asynchronous socket.
   result = newSocket(newAsyncRawSocket(domain, typ, protocol), buffered)
 
+proc newAsyncSocket*(domain, typ, protocol: cint, buffered = true): PAsyncSocket =
+  ## Creates a new asynchronous socket.
+  result = newSocket(newAsyncRawSocket(domain, typ, protocol), buffered)
+
 when defined(ssl):
   proc getSslError(handle: SslPtr, err: cint): cint =
     assert err < 0

lib/pure/net.nim

@@ -108,6 +108,15 @@ proc createSocket(fd: SocketHandle, isBuff: bool): Socket =
   if isBuff:
     result.currPos = 0
 
+proc newSocket*(domain, typ, protocol: cint, buffered = true): Socket =
+  ## Creates a new socket.
+  ##
+  ## If an error occurs EOS will be raised.
+  let fd = newRawSocket(domain, typ, protocol)
+  if fd == osInvalidSocket:
+    raiseOSError(osLastError())
+  result = createSocket(fd, buffered)
+
 proc newSocket*(domain: Domain = AF_INET, typ: SockType = SOCK_STREAM,
              protocol: Protocol = IPPROTO_TCP, buffered = true): Socket =
   ## Creates a new socket.

lib/pure/rawsockets.nim

@@ -153,6 +153,13 @@ proc newRawSocket*(domain: Domain = AF_INET, typ: SockType = SOCK_STREAM,
   ## Creates a new socket; returns `InvalidSocket` if an error occurs.
   socket(toInt(domain), toInt(typ), toInt(protocol))
 
+proc newRawSocket*(domain: cint, typ: cint, protocol: cint): SocketHandle =
+  ## Creates a new socket; returns `InvalidSocket` if an error occurs.
+  ##
+  ## Use this overload if one of the enums specified above does
+  ## not contain what you need.
+  socket(domain, typ, protocol)
+
 proc close*(socket: SocketHandle) =
   ## closes a socket.
   when useWinVersion: