xref: /illumos-gate/usr/src/lib/passwdutil/debug.c (revision 7c478bd9)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate #include <stdio.h>
30*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
31*7c478bd9Sstevel@tonic-gate #include <syslog.h>
32*7c478bd9Sstevel@tonic-gate #include <stdarg.h>
33*7c478bd9Sstevel@tonic-gate #include <string.h>
34*7c478bd9Sstevel@tonic-gate 
35*7c478bd9Sstevel@tonic-gate #define	DEBUG_NONE	0
36*7c478bd9Sstevel@tonic-gate #define	DEBUG_SYSLOG	1
37*7c478bd9Sstevel@tonic-gate #define	DEBUG_STDERR	2
38*7c478bd9Sstevel@tonic-gate 
39*7c478bd9Sstevel@tonic-gate int debug_enabled = 0;
40*7c478bd9Sstevel@tonic-gate 
41*7c478bd9Sstevel@tonic-gate void
42*7c478bd9Sstevel@tonic-gate debug_init(void)
43*7c478bd9Sstevel@tonic-gate {
44*7c478bd9Sstevel@tonic-gate 	char *env;
45*7c478bd9Sstevel@tonic-gate 
46*7c478bd9Sstevel@tonic-gate 	env = getenv("PASSWDUTIL_DEBUG");
47*7c478bd9Sstevel@tonic-gate 
48*7c478bd9Sstevel@tonic-gate 	if (env == NULL)
49*7c478bd9Sstevel@tonic-gate 		debug_enabled = DEBUG_NONE;
50*7c478bd9Sstevel@tonic-gate 
51*7c478bd9Sstevel@tonic-gate 	else if (strcmp(env, "syslog") == 0)
52*7c478bd9Sstevel@tonic-gate 		debug_enabled = DEBUG_SYSLOG;
53*7c478bd9Sstevel@tonic-gate 	else if (strcmp(env, "stderr") == 0)
54*7c478bd9Sstevel@tonic-gate 		debug_enabled = DEBUG_STDERR;
55*7c478bd9Sstevel@tonic-gate 	else {
56*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, "Invalid value for PASSWDUTIL_DEBUG\n");
57*7c478bd9Sstevel@tonic-gate 		debug_enabled = DEBUG_NONE;
58*7c478bd9Sstevel@tonic-gate 	}
59*7c478bd9Sstevel@tonic-gate }
60*7c478bd9Sstevel@tonic-gate 
61*7c478bd9Sstevel@tonic-gate /*PRINTFLIKE1*/
62*7c478bd9Sstevel@tonic-gate void
63*7c478bd9Sstevel@tonic-gate debug(char *fmt, ...)
64*7c478bd9Sstevel@tonic-gate {
65*7c478bd9Sstevel@tonic-gate 	va_list ap;
66*7c478bd9Sstevel@tonic-gate 
67*7c478bd9Sstevel@tonic-gate 	va_start(ap, fmt);
68*7c478bd9Sstevel@tonic-gate 
69*7c478bd9Sstevel@tonic-gate 	switch (debug_enabled) {
70*7c478bd9Sstevel@tonic-gate 	case DEBUG_NONE:
71*7c478bd9Sstevel@tonic-gate 		break;
72*7c478bd9Sstevel@tonic-gate 	case DEBUG_SYSLOG:
73*7c478bd9Sstevel@tonic-gate 		vsyslog(LOG_DEBUG, fmt, ap);
74*7c478bd9Sstevel@tonic-gate 		break;
75*7c478bd9Sstevel@tonic-gate 	case DEBUG_STDERR:
76*7c478bd9Sstevel@tonic-gate 		(void) vfprintf(stderr, fmt, ap);
77*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, "\n");
78*7c478bd9Sstevel@tonic-gate 		break;
79*7c478bd9Sstevel@tonic-gate 	}
80*7c478bd9Sstevel@tonic-gate 	va_end(ap);
81*7c478bd9Sstevel@tonic-gate }
82