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f7afa8ff53
Preserving original terminal echo state when Console.readPassword finishes. Reviewed-by: sherman, martin
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
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* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "jni.h"
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#include "jni_util.h"
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#include "jvm.h"
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#include "java_io_Console.h"
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#include <stdlib.h>
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#include <unistd.h>
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#include <termios.h>
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JNIEXPORT jboolean JNICALL
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Java_java_io_Console_istty(JNIEnv *env, jclass cls)
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{
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return isatty(fileno(stdin)) && isatty(fileno(stdout));
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}
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JNIEXPORT jstring JNICALL
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Java_java_io_Console_encoding(JNIEnv *env, jclass cls)
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{
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return NULL;
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}
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JNIEXPORT jboolean JNICALL
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Java_java_io_Console_echo(JNIEnv *env,
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jclass cls,
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jboolean on)
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{
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struct termios tio;
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jboolean old;
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int tty = fileno(stdin);
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if (tcgetattr(tty, &tio) == -1) {
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JNU_ThrowIOExceptionWithLastError(env, "tcgetattr failed");
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return !on;
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}
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old = (tio.c_lflag & ECHO);
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if (on) {
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tio.c_lflag |= ECHO;
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} else {
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tio.c_lflag &= ~ECHO;
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}
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if (tcsetattr(tty, TCSANOW, &tio) == -1) {
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JNU_ThrowIOExceptionWithLastError(env, "tcsetattr failed");
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}
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return old;
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}
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