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windows: add WSASocket

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Simple function to complement the other ws2 functions we have:
https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketw

Change-Id: Idf6b17360d84a8529e48ab94561c4ac7bee1d847
Reviewed-on: https://go-review.googlesource.com/c/sys/+/295175
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
This commit is contained in:
Jason A. Donenfeld
2021-02-23 13:44:32 +01:00
parent 7937bea010
commit eede4237b3
3 changed files with 23 additions and 0 deletions
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1
windows/syscall_windows.go
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@@ -773,6 +773,7 @@ const socket_error = uintptr(^uint32(0))
//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend
//sys WSARecvFrom(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, from *RawSockaddrAny, fromlen *int32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecvFrom
//sys WSASendTo(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to *RawSockaddrAny, tolen int32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASendTo
//sys WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW
//sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname
//sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname
//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs

12
windows/types_windows.go
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@@ -1039,6 +1039,18 @@ type WSAMsg struct {
Flags uint32
}
// Flags for WSASocket
const (
WSA_FLAG_OVERLAPPED = 0x01
WSA_FLAG_MULTIPOINT_C_ROOT = 0x02
WSA_FLAG_MULTIPOINT_C_LEAF = 0x04
WSA_FLAG_MULTIPOINT_D_ROOT = 0x08
WSA_FLAG_MULTIPOINT_D_LEAF = 0x10
WSA_FLAG_ACCESS_SYSTEM_SECURITY = 0x40
WSA_FLAG_NO_HANDLE_INHERIT = 0x80
WSA_FLAG_REGISTERED_IO = 0x100
)
// Invented values to support what package os expects.
const (
S_IFMT = 0x1f000

10
windows/zsyscall_windows.go
View File

@@ -370,6 +370,7 @@ var (
procWSARecvFrom = modws2_32.NewProc("WSARecvFrom")
procWSASend = modws2_32.NewProc("WSASend")
procWSASendTo = modws2_32.NewProc("WSASendTo")
procWSASocketW = modws2_32.NewProc("WSASocketW")
procWSAStartup = modws2_32.NewProc("WSAStartup")
procbind = modws2_32.NewProc("bind")
procclosesocket = modws2_32.NewProc("closesocket")
@@ -3155,6 +3156,15 @@ func WSASendTo(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32
return
}
func WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) {
r0, _, e1 := syscall.Syscall6(procWSASocketW.Addr(), 6, uintptr(af), uintptr(typ), uintptr(protocol), uintptr(unsafe.Pointer(protoInfo)), uintptr(group), uintptr(flags))
handle = Handle(r0)
if handle == InvalidHandle {
err = errnoErr(e1)
}
return
}
func WSAStartup(verreq uint32, data *WSAData) (sockerr error) {
r0, _, _ := syscall.Syscall(procWSAStartup.Addr(), 2, uintptr(verreq), uintptr(unsafe.Pointer(data)), 0)
if r0 != 0 {