xref: /illumos-gate/usr/src/lib/mpapi/libmpscsi_vhci/common/debug_logging.c (revision 1a2d662a91cee3bf82f41cd47c7ae6f3825d9db2)
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  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <stdio.h>
27 #include <sys/varargs.h>
28 #include <syslog.h>
29 #include <time.h>
30 #include <string.h>
31 #include <errno.h>
32 
33 #define	MAX_LOG_LEN 2048
34 
35 
36 void
37 log(int priority, const char *routine, char *msg, ...)
38 {
39 	char header[MAX_LOG_LEN+1];
40 	char message[MAX_LOG_LEN+1];
41 	int oldErrno = 0;
42 	va_list ap;
43 
44 
45 	oldErrno = errno;
46 
47 	(void) memset(&header,  0, MAX_LOG_LEN+1);
48 	(void) memset(&message, 0, MAX_LOG_LEN+1);
49 
50 	(void) va_start(ap, msg);
51 
52 	(void) snprintf(header, MAX_LOG_LEN, "%s: %s: %s",
53 	"MP-API (SUN) Plugin",
54 	routine,
55 	msg);
56 
57 	/* LINTED E_SEC_PRINTF_VAR_FMT */
58 	(void) vsnprintf(message, MAX_LOG_LEN, header, ap);
59 	/* LINTED E_SEC_PRINTF_VAR_FMT */
60 	(void) syslog(LOG_USER|LOG_DEBUG, message);
61 
62 	(void) va_end(ap);
63 
64 	errno = oldErrno;
65 
66 	oldErrno = priority;
67 }
68