xref: /illumos-gate/usr/src/cmd/isns/isnsd/log.c (revision 20a7641f9918de8574b8b3b47dbe35c4bfc78df1)
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 }
73