/*

 * Copyright (c) 2005, 2013, 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

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include "jni.h"

#include "jni_util.h"

#include "jvm.h"

#include "java_io_Console.h"

#include <stdlib.h>

#include <Wincon.h>

static HANDLE hStdOut = INVALID_HANDLE_VALUE;

static HANDLE hStdIn = INVALID_HANDLE_VALUE;

JNIEXPORT jboolean JNICALL

Java_java_io_Console_istty(JNIEnv *env, jclass cls)

{

    if (hStdIn == INVALID_HANDLE_VALUE &&

        (hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {

        return JNI_FALSE;

    }

    if (hStdOut == INVALID_HANDLE_VALUE &&

        (hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) {

        return JNI_FALSE;

    }

    if (GetFileType(hStdIn) != FILE_TYPE_CHAR ||

        GetFileType(hStdOut) != FILE_TYPE_CHAR)

        return JNI_FALSE;

    return JNI_TRUE;

}

JNIEXPORT jstring JNICALL

Java_java_io_Console_encoding(JNIEnv *env, jclass cls)

{

    char buf[64];

    int cp = GetConsoleCP();

    if (cp >= 874 && cp <= 950)

        sprintf(buf, "ms%d", cp);

    else

        sprintf(buf, "cp%d", cp);

    return JNU_NewStringPlatform(env, buf);

}

JNIEXPORT jboolean JNICALL

Java_java_io_Console_echo(JNIEnv *env, jclass cls, jboolean on)

{

    DWORD fdwMode;

    jboolean old;

    if (! GetConsoleMode(hStdIn, &fdwMode)) {

        JNU_ThrowIOExceptionWithLastError(env, "GetConsoleMode failed");

        return !on;

    }

    old = (fdwMode & ENABLE_ECHO_INPUT) != 0;

    if (on) {

        fdwMode |= ENABLE_ECHO_INPUT;

    } else {

        fdwMode &= ~ENABLE_ECHO_INPUT;

    }

    if (! SetConsoleMode(hStdIn, fdwMode)) {

        JNU_ThrowIOExceptionWithLastError(env, "SetConsoleMode failed");

    }

    return old;

}