1 /*
2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * 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 return JNI_FALSE;
42 }
43 if (hStdOut == INVALID_HANDLE_VALUE &&
44 (hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
45 return JNI_FALSE;
46 }
47 if (GetFileType(hStdIn) != FILE_TYPE_CHAR ||
48 GetFileType(hStdOut) != FILE_TYPE_CHAR)
49 return JNI_FALSE;
50 return JNI_TRUE;
51 }
52
53 JNIEXPORT jstring JNICALL
54 Java_java_io_Console_encoding(JNIEnv *env, jclass cls)
55 {
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1 /*
2 * Copyright (c) 2005, 2018, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "jni.h"
27 #include "jni_util.h"
28 #include "jvm.h"
29 #include "java_io_Console.h"
30 #include <stdlib.h>
31 #include <Wincon.h>
32
33 static HANDLE hStdOut = INVALID_HANDLE_VALUE;
34 static HANDLE hStdIn = INVALID_HANDLE_VALUE;
35
36 JNIEXPORT jint JNICALL
37 Java_java_io_Console_width(JNIEnv *env, jobject this)
38 {
39 CONSOLE_SCREEN_BUFFER_INFO csbi;
40
41 if (!GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) {
42 if (!GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi)) {
43 return -1;
44 }
45 }
46
47 return csbi.dwSize.X;
48 }
49
50 JNIEXPORT jint JNICALL
51 Java_java_io_Console_height(JNIEnv *env, jobject this)
52 {
53 CONSOLE_SCREEN_BUFFER_INFO csbi;
54
55 if (!GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) {
56 if (!GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi)) {
57 return -1;
58 }
59 }
60
61 return csbi.dwSize.Y;
62 }
63
64 JNIEXPORT jboolean JNICALL
65 Java_java_io_Console_istty(JNIEnv *env, jclass cls)
66 {
67 if (hStdIn == INVALID_HANDLE_VALUE &&
68 (hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
69 return JNI_FALSE;
70 }
71 if (hStdOut == INVALID_HANDLE_VALUE &&
72 (hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
73 return JNI_FALSE;
74 }
75 if (GetFileType(hStdIn) != FILE_TYPE_CHAR ||
76 GetFileType(hStdOut) != FILE_TYPE_CHAR)
77 return JNI_FALSE;
78 return JNI_TRUE;
79 }
80
81 JNIEXPORT jstring JNICALL
82 Java_java_io_Console_encoding(JNIEnv *env, jclass cls)
83 {
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