8210147: adjust some WSAGetLastError usages in windows network coding

Reviewed-by: clanger, stuefe

src/java.base/windows/native/libnet/Inet4AddressImpl.c

@@ -326,7 +326,7 @@ ping4(JNIEnv *env, HANDLE hIcmpFile, SOCKETADDRESS *sa,
     ReplyBuffer = (VOID *)malloc(ReplySize);
     if (ReplyBuffer == NULL) {
         IcmpCloseHandle(hIcmpFile);
-        NET_ThrowNew(env, WSAGetLastError(), "Unable to allocate memory");
+        NET_ThrowNew(env, -1, "Unable to allocate memory");
         return JNI_FALSE;
     }
 

src/java.base/windows/native/libnet/Inet6AddressImpl.c

@@ -396,7 +396,7 @@ ping6(JNIEnv *env, HANDLE hIcmpFile, SOCKETADDRESS *sa,
     ReplyBuffer = (VOID *)malloc(ReplySize);
     if (ReplyBuffer == NULL) {
         IcmpCloseHandle(hIcmpFile);
-        NET_ThrowNew(env, WSAGetLastError(), "Unable to allocate memory");
+        NET_ThrowNew(env, -1, "Unable to allocate memory");
         return JNI_FALSE;
     }
 

src/java.base/windows/native/libnet/SocketInputStream.c

@@ -122,12 +122,13 @@ Java_java_net_SocketInputStream_socketRead0(JNIEnv *env, jobject this,
         (*env)->SetByteArrayRegion(env, data, off, nread, (jbyte *)bufP);
     } else {
         if (nread < 0) {
+            int err = WSAGetLastError();
             // Check if the socket has been closed since we last checked.
             // This could be a reason for recv failing.
             if ((*env)->GetIntField(env, fdObj, IO_fd_fdID) == -1) {
                 JNU_ThrowByName(env, "java/net/SocketException", "Socket closed");
             } else {
-                switch (WSAGetLastError()) {
+                switch (err) {
                     case WSAEINTR:
                         JNU_ThrowByName(env, "java/net/SocketException",
                             "socket closed");