/*
* 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 <jni_util.h>
#include "j2secmod.h"
void *findFunction(JNIEnv *env, jlong jHandle, const char *functionName) {
HINSTANCE hModule = (HINSTANCE)jHandle;
void *fAddress = GetProcAddress(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);
HMODULE hModule = GetModuleHandle(libName);
dprintf2("-handle for %s: %d\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 jName)
{
HINSTANCE hModule;
LPVOID lpMsgBuf;
const char *libName = (*env)->GetStringUTFChars(env, jName, NULL);
dprintf1("-lib %s\n", libName);
hModule = LoadLibrary(libName);
(*env)->ReleaseStringUTFChars(env, jName, libName);
if (hModule == NULL) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
0, /* Default language */
(LPTSTR) &lpMsgBuf,
0,
NULL
);
dprintf1("-error: %s\n", lpMsgBuf);
JNU_ThrowIOException(env, (char*)lpMsgBuf);
LocalFree(lpMsgBuf);
return 0;
}
dprintf2("-handle: %d (0X%X)\n", hModule, hModule);
return (jlong)hModule;
}