| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <dlfcn.h> |
| #include <link.h> |
| |
| #include <jni_util.h> |
| |
| #include "j2secmod.h" |
| |
| void *findFunction(JNIEnv *env, jlong jHandle, const char *functionName) { |
| void *hModule = (void*)jHandle; |
| void *fAddress = dlsym(hModule, functionName); |
| if (fAddress == NULL) { |
| char errorMessage[256]; |
| snprintf(errorMessage, sizeof(errorMessage), "Symbol not found: %s", functionName); |
| JNU_ThrowNullPointerException(env, errorMessage); |
| return NULL; |
| } |
| return fAddress; |
| } |
| |
| JNIEXPORT jlong JNICALL Java_sun_security_pkcs11_Secmod_nssGetLibraryHandle |
| (JNIEnv *env, jclass thisClass, jstring jLibName) |
| { |
| const char *libName = (*env)->GetStringUTFChars(env, jLibName, NULL); |
| // look up existing handle only, do not load |
| void *hModule = dlopen(libName, RTLD_NOLOAD); |
| dprintf2("-handle for %s: %u\n", libName, hModule); |
| (*env)->ReleaseStringUTFChars(env, jLibName, libName); |
| return (jlong)hModule; |
| } |
| |
| JNIEXPORT jlong JNICALL Java_sun_security_pkcs11_Secmod_nssLoadLibrary |
| (JNIEnv *env, jclass thisClass, jstring jLibName) |
| { |
| void *hModule; |
| const char *libName = (*env)->GetStringUTFChars(env, jLibName, NULL); |
| |
| dprintf1("-lib %s\n", libName); |
| hModule = dlopen(libName, RTLD_LAZY); |
| (*env)->ReleaseStringUTFChars(env, jLibName, libName); |
| dprintf2("-handle: %u (0X%X)\n", hModule, hModule); |
| |
| if (hModule == NULL) { |
| JNU_ThrowIOException(env, dlerror()); |
| return 0; |
| } |
| |
| return (jlong)hModule; |
| } |