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windows: add GetBestInterfaceEx

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Change-Id: I56f9212420f96a0f275e79b4a9766b09b175254d
Reviewed-on: https://go-review.googlesource.com/c/sys/+/413495
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Dan Kortschak <dan@kortschak.io>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
This commit is contained in:
Dan Kortschak
2022-07-01 22:57:01 +00:00
committed by Alex Brainman
parent f75cf1eec3
commit 179beb0bd1
2 changed files with 18 additions and 0 deletions
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windows/syscall_windows.go
+9
View File
@@ -861,6 +861,7 @@ const socket_error = uintptr(^uint32(0))
//sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses
//sys GetACP() (acp uint32) = kernel32.GetACP
//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar
//sys getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.
@@ -1045,6 +1046,14 @@ func Connect(fd Handle, sa Sockaddr) (err error) {
return connect(fd, ptr, n)
}
func GetBestInterfaceEx(sa Sockaddr, pdwBestIfIndex *uint32) (err error) {
ptr, _, err := sa.sockaddr()
if err != nil {
return err
}
return getBestInterfaceEx(ptr, pdwBestIfIndex)
}
func Getsockname(fd Handle) (sa Sockaddr, err error) {
var rsa RawSockaddrAny
l := int32(unsafe.Sizeof(rsa))
windows/zsyscall_windows.go
+9
View File
@@ -177,6 +177,7 @@ var (
procDnsRecordListFree = moddnsapi.NewProc("DnsRecordListFree")
procGetAdaptersAddresses = modiphlpapi.NewProc("GetAdaptersAddresses")
procGetAdaptersInfo = modiphlpapi.NewProc("GetAdaptersInfo")
procGetBestInterfaceEx = modiphlpapi.NewProc("GetBestInterfaceEx")
procGetIfEntry = modiphlpapi.NewProc("GetIfEntry")
procAssignProcessToJobObject = modkernel32.NewProc("AssignProcessToJobObject")
procCancelIo = modkernel32.NewProc("CancelIo")
@@ -1539,6 +1540,14 @@ func GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) {
return
}
func getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) {
r0, _, _ := syscall.Syscall(procGetBestInterfaceEx.Addr(), 2, uintptr(sockaddr), uintptr(unsafe.Pointer(pdwBestIfIndex)), 0)
if r0 != 0 {
errcode = syscall.Errno(r0)
}
return
}
func GetIfEntry(pIfRow *MibIfRow) (errcode error) {
r0, _, _ := syscall.Syscall(procGetIfEntry.Addr(), 1, uintptr(unsafe.Pointer(pIfRow)), 0, 0)
if r0 != 0 {