1 /* 2 * Copyright (c) 2008, 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 "dlfcn.h" 29 #include <stdlib.h> 30 #include <string.h> 31 32 jstring nativeNewStringPlatform(JNIEnv *env, const char *str) { 33 return NULL; 34 } 35 36 char* nativeGetStringPlatformChars(JNIEnv *env, jstring jstr, jboolean *isCopy) { 37 return NULL; 38 } 39 40 void* getProcessHandle() { 41 static void *procHandle = NULL; 42 if (procHandle != NULL) { 43 return procHandle; 44 } 45 procHandle = (void*)dlopen(NULL, RTLD_LAZY); 46 return procHandle; 47 } 48 49 char *buildJniFunctionName(JNIEnv *env, const char *sym, const char *cname) { 50 int len; 51 char *jniFunctionName; 52 // cname + sym + '_' + '\0' 53 if ((len = (cname != NULL ? strlen(cname) : 0) + strlen(sym) + 2) > 54 FILENAME_MAX) { 55 JNU_ThrowInternalError(env, "Filename for native library too long"); 56 return NULL; 57 } 58 jniFunctionName = malloc(len); 59 if (jniFunctionName == NULL) { 60 JNU_ThrowOutOfMemoryError(env, NULL); 61 return NULL; 62 } 63 strcpy(jniFunctionName, sym); 64 if (cname != NULL) { 65 strcat(jniFunctionName, "_"); 66 strcat(jniFunctionName, cname); 67 } 68 return jniFunctionName; 69 } 70