Subject: [PATCH] move lpFromlen to heap for WSARecvFrom syscall
---
Index: src/internal/poll/fd_windows.go
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/internal/poll/fd_windows.go b/src/internal/poll/fd_windows.go
--- a/src/internal/poll/fd_windows.go	(revision 8149d992682ce76c6af804b507878e19fc966f7b)
+++ b/src/internal/poll/fd_windows.go	(revision 25efab96145f416bbae4024e9c110429770b22d1)
@@ -76,6 +76,8 @@
 	// fields used by runtime.netpoll
 	runtimeCtx uintptr
 	mode       int32
+
+	rsan int32
 }

 func (fd *FD) overlapped(o *operation) *syscall.Overlapped {
@@ -740,9 +742,9 @@
 	rsa := wsaRsaPool.Get().(*syscall.RawSockaddrAny)
 	defer wsaRsaPool.Put(rsa)
 	n, err := fd.execIO('r', func(o *operation) (qty uint32, err error) {
-		rsan := int32(unsafe.Sizeof(*rsa))
+		o.rsan = int32(unsafe.Sizeof(*rsa))
 		var flags uint32
-		err = syscall.WSARecvFrom(fd.Sysfd, newWsaBuf(buf), 1, &qty, &flags, rsa, &rsan, &o.o, nil)
+		err = syscall.WSARecvFrom(fd.Sysfd, newWsaBuf(buf), 1, &qty, &flags, rsa, &o.rsan, &o.o, nil)
 		return qty, err
 	})
 	err = fd.eofError(n, err)
@@ -771,9 +773,9 @@
 	rsa := wsaRsaPool.Get().(*syscall.RawSockaddrAny)
 	defer wsaRsaPool.Put(rsa)
 	n, err := fd.execIO('r', func(o *operation) (qty uint32, err error) {
-		rsan := int32(unsafe.Sizeof(*rsa))
+		o.rsan = int32(unsafe.Sizeof(*rsa))
 		var flags uint32
-		err = syscall.WSARecvFrom(fd.Sysfd, newWsaBuf(buf), 1, &qty, &flags, rsa, &rsan, &o.o, nil)
+		err = syscall.WSARecvFrom(fd.Sysfd, newWsaBuf(buf), 1, &qty, &flags, rsa, &o.rsan, &o.o, nil)
 		return qty, err
 	})
 	err = fd.eofError(n, err)
@@ -802,9 +804,9 @@
 	rsa := wsaRsaPool.Get().(*syscall.RawSockaddrAny)
 	defer wsaRsaPool.Put(rsa)
 	n, err := fd.execIO('r', func(o *operation) (qty uint32, err error) {
-		rsan := int32(unsafe.Sizeof(*rsa))
+		o.rsan = int32(unsafe.Sizeof(*rsa))
 		var flags uint32
-		err = syscall.WSARecvFrom(fd.Sysfd, newWsaBuf(buf), 1, &qty, &flags, rsa, &rsan, &o.o, nil)
+		err = syscall.WSARecvFrom(fd.Sysfd, newWsaBuf(buf), 1, &qty, &flags, rsa, &o.rsan, &o.o, nil)
 		return qty, err
 	})
 	err = fd.eofError(n, err)