usr/src/cmd/isns/isnsd/log.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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #include <stdio.h>
  28 #include <stdarg.h>
  29 #include <sys/types.h>
  30 #include <sys/varargs.h>
  31 #include <errno.h>
  32 #include <string.h>
  33
  34 #include "isns_log.h"
  35
  36 extern int dbg_level;
  37
  38 #define MAX_LOG_LEN 2048
  39
  40 void
  41 isnslog(
  42         int level,
  43         const char *routine,
  44         char *msg,
  45         ...
  46 )
  47 {
  48         char header[MAX_LOG_LEN+1];
  49         char message[MAX_LOG_LEN+1];
  50         int oldErrno = 0;
  51         va_list ap;
  52
  53         oldErrno = errno;
  54
  55         if (dbg_level >= level) {
  56                 (void) memset(&header,  0, MAX_LOG_LEN+1);
  57                 (void) memset(&message, 0, MAX_LOG_LEN+1);
  58
  59                 va_start(ap, msg);
  60                 (void) snprintf(header, MAX_LOG_LEN, "%s: %s: %s",
  61                     "iSNS Daemon", routine, msg);
  62
  63                 /* LINTED E_SEC_PRINTF_VAR_FMT */
  64                 (void) vsnprintf(message, MAX_LOG_LEN, header, ap);
  65                 /* LINTED E_SEC_PRINTF_VAR_FMT */
  66                 syslog(LOG_DAEMON | level, message);
  67
  68                 va_end(ap);
  69         }
  70
  71         errno = oldErrno;
  72 }