src/java.base/share/native/libjava/StringCoding.c
author prr
Fri, 10 May 2019 16:22:35 -0700
changeset 54877 dde07ac16610
parent 47216 71c04702a3d5
permissions -rw-r--r--
8212700: Change the mechanism by which JDK loads the platform-specific AWT Toolkit Reviewed-by: serb, rriggs
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/*
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 * Copyright (c) 1998, 2014, 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 <stdlib.h>
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#include <jni.h>
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#include <jni_util.h>
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#include <stdio.h>
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#include <jvm.h>
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#include "java_lang_StringCoding.h"
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static void
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printToFile(JNIEnv *env, jstring s, FILE *file)
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{
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    char *sConverted;
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    int length = 0;
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    int i;
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    const jchar *sAsArray;
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    if (s == NULL) {
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        JNU_ThrowNullPointerException(env, NULL);
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        return;
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    }
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    sAsArray = (*env)->GetStringChars(env, s, NULL);
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    if (!sAsArray)
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        return;
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    length = (*env)->GetStringLength(env, s);
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    if (length == 0) {
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        (*env)->ReleaseStringChars(env, s, sAsArray);
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        return;
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    }
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    sConverted = (char *) malloc(length + 1);
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    if (!sConverted) {
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        (*env)->ReleaseStringChars(env, s, sAsArray);
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        JNU_ThrowOutOfMemoryError(env, NULL);
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        return;
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    }
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    for(i = 0; i < length; i++) {
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        sConverted[i] = (0x7f & sAsArray[i]);
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    }
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    sConverted[length] = '\0';
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    jio_fprintf(file, "%s", sConverted);
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    (*env)->ReleaseStringChars(env, s, sAsArray);
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    free(sConverted);
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}
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JNIEXPORT void JNICALL
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Java_java_lang_StringCoding_err(JNIEnv *env, jclass cls, jstring s)
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{
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    printToFile(env, s, stderr);
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}