/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <stddef.h>
#include <assert.h>
#include <string.h>
#include <syslog.h>

#include "jsyslog.h"

#define ILL_ARG_EX_CLASS_DESC   "java/lang/IllegalArgumentException"
#define THROWABLE_CLASS_DESC    "java/lang/Throwable"

#define CLASS_FIELD_DESC(class_desc)    "L" class_desc ";"

/*
 * syslog(3c) ident string
 */
static char jsyslog_ident[32];

/*
 * Log the given message with the given severity.
 */
/*ARGSUSED*/
JNIEXPORT void JNICALL
Java_com_sun_solaris_service_logging_SyslogHandler_syslog(JNIEnv *env,
    jclass clazz, jint severity, jstring messageObj)
{
        const char *message;

        if (messageObj == NULL) {
                jclass exceptionClass;

                if (!(exceptionClass = (*env)->FindClass(env,
                    ILL_ARG_EX_CLASS_DESC)))
                        return; /* exception thrown */
                (*env)->Throw(env, (*env)->NewObject(env, exceptionClass,
                    (*env)->GetStaticMethodID(env, exceptionClass, "<init>",
                    "()" CLASS_FIELD_DESC(THROWABLE_CLASS_DESC))));
                return;
        }

        if (!(message = (*env)->GetStringUTFChars(env, messageObj, NULL)))
                return; /* exception thrown */
        syslog(severity, "%s", message);
        (*env)->ReleaseStringUTFChars(env, messageObj, message);
}

/*
 * Invoke openlog(3c).
 */
/*ARGSUSED*/
JNIEXPORT void JNICALL
Java_com_sun_solaris_service_logging_SyslogHandler_openlog(JNIEnv *env,
    jclass clazz, jstring identObj, jint logopt, jint facility)
{
        const char *ident;

        if (identObj == NULL) {
                jclass exceptionClass;

                if (!(exceptionClass = (*env)->FindClass(env,
                    ILL_ARG_EX_CLASS_DESC)))
                        return; /* exception thrown */
                (*env)->Throw(env, (*env)->NewObject(env, exceptionClass,
                    (*env)->GetStaticMethodID(env, exceptionClass, "<init>",
                    "()" CLASS_FIELD_DESC(THROWABLE_CLASS_DESC))));
                return;
        }

        if (!(ident = (*env)->GetStringUTFChars(env, identObj, NULL)))
                return; /* exception thrown */
        (void) strlcpy(jsyslog_ident, ident, sizeof (jsyslog_ident));
        openlog(jsyslog_ident, logopt, facility);

        (*env)->ReleaseStringUTFChars(env, identObj, ident);
}

/*
 * Invoke closelog(3c).
 */
/*ARGSUSED*/
JNIEXPORT void JNICALL
Java_com_sun_solaris_service_logging_SyslogHandler_closelog(JNIEnv *env,
    jclass clazz)
{
        closelog();
}