usr/src/cmd/pools/poold/libjsyslog/jsyslog.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <stddef.h>
  30 #include <assert.h>
  31 #include <string.h>
  32 #include <syslog.h>
  33
  34 #include "jsyslog.h"
  35
  36 #define ILL_ARG_EX_CLASS_DESC   "java/lang/IllegalArgumentException"
  37 #define THROWABLE_CLASS_DESC    "java/lang/Throwable"
  38
  39 #define CLASS_FIELD_DESC(class_desc)    "L" class_desc ";"
  40
  41 /*
  42  * syslog(3c) ident string
  43  */
  44 static char jsyslog_ident[32];
  45
  46 /*
  47  * Log the given message with the given severity.
  48  */
  49 /*ARGSUSED*/
  50 JNIEXPORT void JNICALL
  51 Java_com_sun_solaris_service_logging_SyslogHandler_syslog(JNIEnv *env,
  52     jclass clazz, jint severity, jstring messageObj)
  53 {
  54         const char *message;
  55
  56         if (messageObj == NULL) {
  57                 jclass exceptionClass;
  58
  59                 if (!(exceptionClass = (*env)->FindClass(env,
  60                     ILL_ARG_EX_CLASS_DESC)))
  61                         return; /* exception thrown */
  62                 (*env)->Throw(env, (*env)->NewObject(env, exceptionClass,
  63                     (*env)->GetStaticMethodID(env, exceptionClass, "<init>",
  64                     "()" CLASS_FIELD_DESC(THROWABLE_CLASS_DESC))));
  65                 return;
  66         }
  67
  68         if (!(message = (*env)->GetStringUTFChars(env, messageObj, NULL)))
  69                 return; /* exception thrown */
  70         syslog(severity, "%s", message);
  71         (*env)->ReleaseStringUTFChars(env, messageObj, message);
  72 }
  73
  74 /*
  75  * Invoke openlog(3c).
  76  */
  77 /*ARGSUSED*/
  78 JNIEXPORT void JNICALL
  79 Java_com_sun_solaris_service_logging_SyslogHandler_openlog(JNIEnv *env,
  80     jclass clazz, jstring identObj, jint logopt, jint facility)
  81 {
  82         const char *ident;
  83
  84         if (identObj == NULL) {
  85                 jclass exceptionClass;
  86
  87                 if (!(exceptionClass = (*env)->FindClass(env,
  88                     ILL_ARG_EX_CLASS_DESC)))
  89                         return; /* exception thrown */
  90                 (*env)->Throw(env, (*env)->NewObject(env, exceptionClass,
  91                     (*env)->GetStaticMethodID(env, exceptionClass, "<init>",
  92                     "()" CLASS_FIELD_DESC(THROWABLE_CLASS_DESC))));
  93                 return;
  94         }
  95
  96         if (!(ident = (*env)->GetStringUTFChars(env, identObj, NULL)))
  97                 return; /* exception thrown */
  98         (void) strlcpy(jsyslog_ident, ident, sizeof (jsyslog_ident));
  99         openlog(jsyslog_ident, logopt, facility);
 100
 101         (*env)->ReleaseStringUTFChars(env, identObj, ident);
 102 }
 103
 104 /*
 105  * Invoke closelog(3c).
 106  */
 107 /*ARGSUSED*/
 108 JNIEXPORT void JNICALL
 109 Java_com_sun_solaris_service_logging_SyslogHandler_closelog(JNIEnv *env,
 110     jclass clazz)
 111 {
 112         closelog();
 113 }