--- old/src/java.base/unix/native/libjava/Console_md.c	2018-08-24 15:15:37.011607000 +0200
+++ new/src/java.base/unix/native/libjava/Console_md.c	2018-08-24 15:15:35.531578600 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -27,11 +27,34 @@
 #include "jni_util.h"
 #include "jvm.h"
 #include "java_io_Console.h"
-
 #include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/resource.h>
 #include <unistd.h>
 #include <termios.h>
 
+JNIEXPORT jint JNICALL
+Java_java_io_Console_width(JNIEnv *env, jobject this)
+{
+    struct winsize w;
+
+    if (ioctl(0, TIOCGWINSZ, &w) == 0 || ioctl(1, TIOCGWINSZ, &w) == 0 || ioctl(2, TIOCGWINSZ, &w) == 0) {
+        return w.ws_col;
+    }
+    return -1;
+}
+
+JNIEXPORT jint JNICALL
+Java_java_io_Console_height(JNIEnv *env, jobject this)
+{
+    struct winsize w;
+
+    if (ioctl(0, TIOCGWINSZ, &w) == 0 || ioctl(1, TIOCGWINSZ, &w) == 0 || ioctl(2, TIOCGWINSZ, &w) == 0) {
+        return w.ws_row;
+    }
+    return -1;
+}
+
 JNIEXPORT jboolean JNICALL
 Java_java_io_Console_istty(JNIEnv *env, jclass cls)
 {