xref: /titanic_41/usr/src/lib/lvm/libsvm/common/debug.c (revision 4496171313bed39e96f21bc2f9faf2868e267ae3)
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 <stdio.h>
30 #include <stdarg.h>
31 #include <stdlib.h>
32 #include <limits.h>
33 #include <string.h>
34 
35 /* The following defines are for tracing output (from libsmpicommon) */
36 
37 #define	LOG		0x1	/* write message to log file */
38 #define	SCR		0x2	/* write message to the screen */
39 #define	LOGSCR		LOG|SCR /* write message to the log and screen */
40 #define	LEVEL0		0x0001  /* message level 0 */
41 #define	LEVEL1		0x0002  /* message level 1 */
42 #define	LEVEL2		0x0004  /* message level 2 */
43 #define	LEVEL3		0x0010  /* message level 3 */
44 
45 extern int get_trace_level(void);
46 extern int write_status(unsigned char, unsigned int, char *, ...);
47 
48 const char libsvm_str[] = "LIB_SVM: ";
49 const int libsvm_len = sizeof (libsvm_str);
50 
51 /*PRINTFLIKE1*/
52 void
53 debug_printf(char *fmt, ...)
54 {
55 	va_list ap;
56 	char *cp;
57 	char *buf;
58 
59 	if (get_trace_level() > 5) {
60 		if ((buf = calloc(PATH_MAX, sizeof (char))) == NULL)
61 			return;
62 		(void) strcpy(buf, libsvm_str);
63 		/*
64 		 * libsvm_len - 1 is because the length includes NULL
65 		 */
66 
67 		cp = buf + (libsvm_len - 1);
68 		va_start(ap, fmt);
69 		if (vsnprintf(cp, (PATH_MAX - (libsvm_len - 1)),
70 							fmt, ap) >= 0) {
71 			write_status(LOGSCR, LEVEL0, buf);
72 		}
73 		free(buf);
74 		va_end(ap);
75 	}
76 }
77