summaryrefslogtreecommitdiffstats
path: root/contrib/openpam/lib/openpam_log.c
blob: 1bbe62347d887f9fd3ea141f91efcd4e131f6c74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*-
 * Copyright (c) 2002 Networks Associates Technology, Inc.
 * All rights reserved.
 *
 * This software was developed for the FreeBSD Project by ThinkSec AS and
 * Network Associates Laboratories, the Security Research Division of
 * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
 * ("CBOSS"), as part of the DARPA CHATS research program.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $P4: //depot/projects/openpam/lib/openpam_log.c#15 $
 */

#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>

#include <security/pam_appl.h>

#include "openpam_impl.h"

#if defined(openpam_log)

/*
 * OpenPAM extension
 *
 * Log a message through syslog(3)
 */

void
_openpam_log(int level, const char *func, const char *fmt, ...)
{
	va_list ap;
	char *format;
	int len, priority;

	switch (level) {
	case PAM_LOG_DEBUG:
#ifndef DEBUG
		return;
#endif
		priority = LOG_DEBUG;
		break;
	case PAM_LOG_VERBOSE:
		priority = LOG_INFO;
		break;
	case PAM_LOG_NOTICE:
		priority = LOG_NOTICE;
		break;
	case PAM_LOG_ERROR:
		priority = LOG_ERR;
		break;
	}
	va_start(ap, fmt);
	for (len = strlen(fmt); len > 0 && isspace(fmt[len]); len--)
		/* nothing */;
	if ((format = malloc(strlen(func) + len + 16)) != NULL) {
		sprintf(format, "in %s(): %.*s\n", func, len, fmt);
		vsyslog(priority, format, ap);
		free(format);
	} else {
		vsyslog(priority, fmt, ap);
	}
	va_end(ap);
}

#else

/*
 * If openpam_log isn't defined as a macro, we're on a platform that
 * doesn't support varadic macros (or it does but we aren't aware of
 * it).  Do the next best thing.
 */

void
openpam_log(int level, const char *fmt, ...)
{
	va_list ap;
	int priority;

	switch (level) {
	case PAM_LOG_DEBUG:
#ifndef DEBUG
		return;
#endif
		priority = LOG_DEBUG;
		break;
	case PAM_LOG_VERBOSE:
		priority = LOG_INFO;
		break;
	case PAM_LOG_NOTICE:
		priority = LOG_NOTICE;
		break;
	case PAM_LOG_ERROR:
		priority = LOG_ERR;
		break;
	}
	va_start(ap, fmt);
	vsyslog(priority, fmt, ap);
	va_end(ap);
}

#endif

/*
 * NOLIST
 */
OpenPOWER on IntegriCloud