xref: /illumos-gate/usr/src/lib/passwdutil/debug.c (revision 7c478bd9)
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 <stdlib.h>
31 #include <syslog.h>
32 #include <stdarg.h>
33 #include <string.h>
34 
35 #define	DEBUG_NONE	0
36 #define	DEBUG_SYSLOG	1
37 #define	DEBUG_STDERR	2
38 
39 int debug_enabled = 0;
40 
41 void
42 debug_init(void)
43 {
44 	char *env;
45 
46 	env = getenv("PASSWDUTIL_DEBUG");
47 
48 	if (env == NULL)
49 		debug_enabled = DEBUG_NONE;
50 
51 	else if (strcmp(env, "syslog") == 0)
52 		debug_enabled = DEBUG_SYSLOG;
53 	else if (strcmp(env, "stderr") == 0)
54 		debug_enabled = DEBUG_STDERR;
55 	else {
56 		(void) fprintf(stderr, "Invalid value for PASSWDUTIL_DEBUG\n");
57 		debug_enabled = DEBUG_NONE;
58 	}
59 }
60 
61 /*PRINTFLIKE1*/
62 void
63 debug(char *fmt, ...)
64 {
65 	va_list ap;
66 
67 	va_start(ap, fmt);
68 
69 	switch (debug_enabled) {
70 	case DEBUG_NONE:
71 		break;
72 	case DEBUG_SYSLOG:
73 		vsyslog(LOG_DEBUG, fmt, ap);
74 		break;
75 	case DEBUG_STDERR:
76 		(void) vfprintf(stderr, fmt, ap);
77 		(void) fprintf(stderr, "\n");
78 		break;
79 	}
80 	va_end(ap);
81 }
82