| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include "jni.h" |
| 27 | #include "jni_util.h" |
| 28 | #include "jvm.h" |
| 29 | #include "java_io_Console.h" |
| 30 | |
| 31 | #include <stdlib.h> |
| 32 | #include <Wincon.h> |
| 33 | |
| 34 | static HANDLE hStdOut = INVALID_HANDLE_VALUE; |
| 35 | static HANDLE hStdIn = INVALID_HANDLE_VALUE; |
| 36 | JNIEXPORT jboolean JNICALL |
| 37 | Java_java_io_Console_istty(JNIEnv *env, jclass cls) |
| 38 | { |
| 39 | if (hStdIn == INVALID_HANDLE_VALUE && |
| 40 | (hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
| 41 | JNU_ThrowIOExceptionWithLastError(env, "Open Console input failed"); |
| 42 | return JNI_FALSE; |
| 43 | } |
| 44 | if (hStdOut == INVALID_HANDLE_VALUE && |
| 45 | (hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
| 46 | JNU_ThrowIOExceptionWithLastError(env, "Open Console output failed"); |
| 47 | return JNI_FALSE; |
| 48 | } |
| 49 | if (GetFileType(hStdIn) != FILE_TYPE_CHAR || |
| 50 | GetFileType(hStdOut) != FILE_TYPE_CHAR) |
| 51 | return JNI_FALSE; |
| 52 | return JNI_TRUE; |
| 53 | } |
| 54 | |
| 55 | JNIEXPORT jstring JNICALL |
| 56 | Java_java_io_Console_encoding(JNIEnv *env, jclass cls) |
| 57 | { |
| 58 | char buf[64]; |
| 59 | int cp = GetConsoleCP(); |
| 60 | if (cp >= 874 && cp <= 950) |
| 61 | sprintf(buf, "ms%d", cp); |
| 62 | else |
| 63 | sprintf(buf, "cp%d", cp); |
| 64 | return JNU_NewStringPlatform(env, buf); |
| 65 | } |
| 66 | |
| 67 | JNIEXPORT jboolean JNICALL |
| 68 | Java_java_io_Console_echo(JNIEnv *env, jclass cls, jboolean on) |
| 69 | { |
| 70 | DWORD fdwMode; |
| 71 | jboolean old; |
| 72 | if (! GetConsoleMode(hStdIn, &fdwMode)) { |
| 73 | JNU_ThrowIOExceptionWithLastError(env, "GetConsoleMode failed"); |
| 74 | return !on; |
| 75 | } |
| 76 | old = (fdwMode & ENABLE_ECHO_INPUT) != 0; |
| 77 | if (on) { |
| 78 | fdwMode |= ENABLE_ECHO_INPUT; |
| 79 | } else { |
| 80 | fdwMode &= ~ENABLE_ECHO_INPUT; |
| 81 | } |
| 82 | if (! SetConsoleMode(hStdIn, fdwMode)) { |
| 83 | JNU_ThrowIOExceptionWithLastError(env, "SetConsoleMode failed"); |
| 84 | } |
| 85 | return old; |
| 86 | } |