/*
* Copyright (c) 2005, 2006, 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) {
JNU_ThrowIOExceptionWithLastError(env, "Open Console input failed");
return JNI_FALSE;
}
if (hStdOut == INVALID_HANDLE_VALUE &&
(hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
JNU_ThrowIOExceptionWithLastError(env, "Open Console output failed");
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;
}