1/*
2 * Copyright 2011 Tresys Technology, LLC. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 *    1. Redistributions of source code must retain the above copyright notice,
8 *       this list of conditions and the following disclaimer.
9 *
10 *    2. Redistributions in binary form must reproduce the above copyright notice,
11 *       this list of conditions and the following disclaimer in the documentation
12 *       and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY TRESYS TECHNOLOGY, LLC ``AS IS'' AND ANY EXPRESS
15 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
17 * EVENT SHALL TRESYS TECHNOLOGY, LLC OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
21 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
22 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * The views and conclusions contained in the software and documentation are those
26 * of the authors and should not be interpreted as representing official policies,
27 * either expressed or implied, of Tresys Technology, LLC.
28 */
29
30#include <stdlib.h>
31#include <stdio.h>
32#include <stdarg.h>
33#include <string.h>
34
35#include <cil/cil.h>
36#include "cil_log.h"
37
38static enum cil_log_level cil_log_level = CIL_ERR;
39
40void cil_default_log_handler(__attribute__((unused)) int lvl, char *msg)
41{
42	fprintf(stderr, "%s", msg);
43}
44
45void (*cil_log_handler)(int lvl, char *msg) = &cil_default_log_handler;
46
47void cil_set_log_handler(void (*handler)(int lvl, char *msg))
48{
49	cil_log_handler = handler;
50}
51
52__attribute__ ((format (printf, 2, 0))) void cil_vlog(enum cil_log_level lvl, const char *msg, va_list args)
53{
54	if (cil_log_level >= lvl) {
55		char buff[MAX_LOG_SIZE];
56		vsnprintf(buff, MAX_LOG_SIZE, msg, args);
57		(*cil_log_handler)(cil_log_level, buff);
58	}
59}
60
61__attribute__ ((format (printf, 2, 3))) void cil_log(enum cil_log_level lvl, const char *msg, ...)
62{
63    va_list args;
64    va_start(args, msg);
65    cil_vlog(lvl, msg, args);
66    va_end(args);
67}
68
69void cil_set_log_level(enum cil_log_level lvl)
70{
71	cil_log_level = lvl;
72}
73