LibLoader 1.0.0

jerome-jouvie · Feb 18, 2017 · 5663264 · 5663264
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diff --git a/distrib/1.0.0/LibLoader-linux.jar b/distrib/1.0.0/LibLoader-linux.jar
diff --git a/distrib/1.0.0/LibLoader-linux64.jar b/distrib/1.0.0/LibLoader-linux64.jar
diff --git a/distrib/1.0.0/LibLoader.jar b/distrib/1.0.0/LibLoader.jar
diff --git a/src-c-linux32/LibLoader.cpp b/src-c-linux32/LibLoader.cpp
@@ -0,0 +1,144 @@
+/**
+ * LibLoader
+ * Copyright © 2007-2017 Jérôme Jouvie
+ *
+ * Created on 25 mar. 2007
+ * @version file v1.0.0
+ *
+ * To contact me:
+ * [email protected]
+ * http://jerome.jouvie.free.fr/
+ *
+ * INTRODUCTION
+ * This project enhance the Java's System.loadLibrary and allows:
+ * - library loading without loading dependencies
+ * - search libraries from "java.library.path", "sun.jnlp.applet.launcher", "org.lwjgl.librarypath"
+ * - library loading from applet
+ *
+ *
+ * GNU LESSER GENERAL PUBLIC LICENSE
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of the License,
+ * or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <dlfcn.h>
+
+#include "org_jouvieje_libloader_LibLoaderJNI.h"
+
+#define POINTER_TYPE unsigned long
+#define N2J_CAST_PTR(X,Y) (*(Y*)&(X))
+
+const char * NULL_HANDLE = "";
+void ThrowNullPointerException(JNIEnv *jenv, const char *message) {
+	jclass exception = jenv->FindClass("java/lang/NullPointerException");
+
+	if(exception) {
+		jenv->ThrowNew(exception, message);
+		jenv->DeleteLocalRef(exception);
+	}
+}
+
+bool CheckAllocation(JNIEnv *jenv, void *memAllocated) {
+	if(memAllocated == NULL) {
+		ThrowNullPointerException(jenv, "");
+		return false;
+	}
+	else {
+		return true;
+	}
+}
+
+char *getByteArrayElements(JNIEnv *jenv, jbyteArray array) {
+	if(array) {
+		const jsize length = jenv->GetArrayLength(array);
+		const jbyte *chars = jenv->GetByteArrayElements(array, 0);
+		char *copy = new char[length+1];		//Allocate memory
+		if(!CheckAllocation(jenv, copy)) {
+			return 0;
+		}
+
+		for(int i = 0; i < length; i++) {
+			copy[i] = (char)chars[i];
+		}
+		copy[length] = 0;		//End of the string
+		jenv->ReleaseByteArrayElements(array, (jbyte *)chars, 0);
+
+		return copy;
+	}
+	return 0;
+}
+
+void releaseByteArrayElements(JNIEnv *jenv, jbyteArray array, const char *chars) {
+	if(chars) {
+		delete [] chars; //Deallocate memory
+		chars = NULL;
+	}
+}
+
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlopen(JNIEnv *jenv, jclass jcls, jbyteArray jfilename, jint jflag) {
+	char *filename = getByteArrayElements(jenv, jfilename);
+	int flag = (int)jflag;
+
+	void *handle = dlopen(filename, flag);
+
+	if(!handle) {
+		printf("dlopen error: %s\n", dlerror());
+	}
+
+	releaseByteArrayElements(jenv, jfilename, (const char *)filename);
+
+	POINTER_TYPE jresult/* = 0*/;
+	N2J_CAST_PTR(jresult, void *) = handle;
+	return (jlong)jresult;
+}
+
+JNIEXPORT jstring JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlerror(JNIEnv *jenv, jclass jcls) {
+	char *result = dlerror();
+	if (!result) {
+		return NULL;
+	}
+	return jenv->NewStringUTF(result);
+}
+
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlsym(JNIEnv *jenv, jclass jcls, jlong jhandle, jbyteArray jsymbol) {
+	if(!jhandle) {
+		ThrowNullPointerException(jenv, NULL_HANDLE);
+		return 0;
+	}
+	void *handle = *(void **)&jhandle;
+	char *symbol = getByteArrayElements(jenv, jsymbol);
+
+	void *result = dlsym(handle, symbol);
+
+	releaseByteArrayElements(jenv, jsymbol, (const char *)symbol);
+
+	POINTER_TYPE jresult/* = 0*/;
+	N2J_CAST_PTR(jresult, void *) = result;
+	return (jlong)jresult;
+}
+
+JNIEXPORT jint JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlclose(JNIEnv *jenv, jclass jcls, jlong jhandle) {
+	if(!jhandle) {
+		ThrowNullPointerException(jenv, NULL_HANDLE);
+		return 0;
+	}
+	void *handle = *(void **)&jhandle;
+
+	int result = dlclose(handle);
+	return (jint)result;
+}
+
diff --git a/src-c-linux32/build.sh b/src-c-linux32/build.sh
@@ -0,0 +1,3 @@
+echo <jni.h> to "jni.h" in jni headers
+rm ./libLibLoader.so
+g++ -I../../../jni-headers/linux/sun/ -O3 -Wall -fPIC *.cpp -pthread -shared -o libLibLoader.so
diff --git a/src-c-linux32/org_jouvieje_libloader_LibLoaderJNI.h b/src-c-linux32/org_jouvieje_libloader_LibLoaderJNI.h
@@ -0,0 +1,45 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include "jni.h"
+/* Header for class org_jouvieje_libloader_LibLoaderJNI */
+
+#ifndef _Included_org_jouvieje_libloader_LibLoaderJNI
+#define _Included_org_jouvieje_libloader_LibLoaderJNI
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlopen
+ * Signature: ([BI)J
+ */
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlopen
+  (JNIEnv *, jclass, jbyteArray, jint);
+
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlerror
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlerror
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlsym
+ * Signature: (J[B)J
+ */
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlsym
+  (JNIEnv *, jclass, jlong, jbyteArray);
+
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlclose
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlclose
+  (JNIEnv *, jclass, jlong);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/src-c-linux64/LibLoader.cpp b/src-c-linux64/LibLoader.cpp
@@ -0,0 +1,144 @@
+/**
+ * LibLoader
+ * Copyright © 2007-2017 Jérôme Jouvie
+ *
+ * Created on 25 mar. 2007
+ * @version file v1.0.0
+ *
+ * To contact me:
+ * [email protected]
+ * http://jerome.jouvie.free.fr/
+ *
+ * INTRODUCTION
+ * This project enhance the Java's System.loadLibrary and allows:
+ * - library loading without loading dependencies
+ * - search libraries from "java.library.path", "sun.jnlp.applet.launcher", "org.lwjgl.librarypath"
+ * - library loading from applet
+ *
+ *
+ * GNU LESSER GENERAL PUBLIC LICENSE
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of the License,
+ * or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <dlfcn.h>
+
+#include "org_jouvieje_libloader_LibLoaderJNI.h"
+
+#define POINTER_TYPE unsigned long
+#define N2J_CAST_PTR(X,Y) (*(Y*)&(X))
+
+const char * NULL_HANDLE = "";
+void ThrowNullPointerException(JNIEnv *jenv, const char *message) {
+	jclass exception = jenv->FindClass("java/lang/NullPointerException");
+
+	if(exception) {
+		jenv->ThrowNew(exception, message);
+		jenv->DeleteLocalRef(exception);
+	}
+}
+
+bool CheckAllocation(JNIEnv *jenv, void *memAllocated) {
+	if(memAllocated == NULL) {
+		ThrowNullPointerException(jenv, "");
+		return false;
+	}
+	else {
+		return true;
+	}
+}
+
+char *getByteArrayElements(JNIEnv *jenv, jbyteArray array) {
+	if(array) {
+		const jsize length = jenv->GetArrayLength(array);
+		const jbyte *chars = jenv->GetByteArrayElements(array, 0);
+		char *copy = new char[length+1];		//Allocate memory
+		if(!CheckAllocation(jenv, copy)) {
+			return 0;
+		}
+
+		for(int i = 0; i < length; i++) {
+			copy[i] = (char)chars[i];
+		}
+		copy[length] = 0;		//End of the string
+		jenv->ReleaseByteArrayElements(array, (jbyte *)chars, 0);
+
+		return copy;
+	}
+	return 0;
+}
+
+void releaseByteArrayElements(JNIEnv *jenv, jbyteArray array, const char *chars) {
+	if(chars) {
+		delete [] chars; //Deallocate memory
+		chars = NULL;
+	}
+}
+
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlopen(JNIEnv *jenv, jclass jcls, jbyteArray jfilename, jint jflag) {
+	char *filename = getByteArrayElements(jenv, jfilename);
+	int flag = (int)jflag;
+
+	void *handle = dlopen(filename, flag);
+
+	if(!handle) {
+		printf("dlopen error: %s\n", dlerror());
+	}
+
+	releaseByteArrayElements(jenv, jfilename, (const char *)filename);
+
+	POINTER_TYPE jresult/* = 0*/;
+	N2J_CAST_PTR(jresult, void *) = handle;
+	return (jlong)jresult;
+}
+
+JNIEXPORT jstring JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlerror(JNIEnv *jenv, jclass jcls) {
+	char *result = dlerror();
+	if (!result) {
+		return NULL;
+	}
+	return jenv->NewStringUTF(result);
+}
+
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlsym(JNIEnv *jenv, jclass jcls, jlong jhandle, jbyteArray jsymbol) {
+	if(!jhandle) {
+		ThrowNullPointerException(jenv, NULL_HANDLE);
+		return 0;
+	}
+	void *handle = *(void **)&jhandle;
+	char *symbol = getByteArrayElements(jenv, jsymbol);
+
+	void *result = dlsym(handle, symbol);
+
+	releaseByteArrayElements(jenv, jsymbol, (const char *)symbol);
+
+	POINTER_TYPE jresult/* = 0*/;
+	N2J_CAST_PTR(jresult, void *) = result;
+	return (jlong)jresult;
+}
+
+JNIEXPORT jint JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlclose(JNIEnv *jenv, jclass jcls, jlong jhandle) {
+	if(!jhandle) {
+		ThrowNullPointerException(jenv, NULL_HANDLE);
+		return 0;
+	}
+	void *handle = *(void **)&jhandle;
+
+	int result = dlclose(handle);
+	return (jint)result;
+}
+
diff --git a/src-c-linux64/build64.sh b/src-c-linux64/build64.sh
@@ -0,0 +1,3 @@
+echo <jni.h> to "jni.h" in jni headers
+rm ./libLibLoader64.so
+g++ -I../../../jni-headers/linux64/sun/ -O3 -Wall -fPIC *.cpp -pthread -shared -o libLibLoader64.so
diff --git a/src-c-linux64/org_jouvieje_libloader_LibLoaderJNI.h b/src-c-linux64/org_jouvieje_libloader_LibLoaderJNI.h
@@ -0,0 +1,45 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include "jni.h"
+/* Header for class org_jouvieje_libloader_LibLoaderJNI */
+
+#ifndef _Included_org_jouvieje_libloader_LibLoaderJNI
+#define _Included_org_jouvieje_libloader_LibLoaderJNI
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlopen
+ * Signature: ([BI)J
+ */
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlopen
+  (JNIEnv *, jclass, jbyteArray, jint);
+
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlerror
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlerror
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlsym
+ * Signature: (J[B)J
+ */
+JNIEXPORT jlong JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlsym
+  (JNIEnv *, jclass, jlong, jbyteArray);
+
+/*
+ * Class:     org_jouvieje_libloader_LibLoaderJNI
+ * Method:    dlclose
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_jouvieje_libloader_LibLoaderJNI_dlclose
+  (JNIEnv *, jclass, jlong);
+
+#ifdef __cplusplus
+}
+#endif
+#endif