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
38 static enum cil_log_level cil_log_level = CIL_ERR;
39
cil_default_log_handler(int lvl,char * msg)40 void cil_default_log_handler(__attribute__((unused)) int lvl, char *msg)
41 {
42 fprintf(stderr, "%s", msg);
43 }
44
45 void (*cil_log_handler)(int lvl, char *msg) = &cil_default_log_handler;
46
cil_set_log_handler(void (* handler)(int lvl,char * msg))47 void cil_set_log_handler(void (*handler)(int lvl, char *msg))
48 {
49 cil_log_handler = handler;
50 }
51
cil_vlog(enum cil_log_level lvl,const char * msg,va_list args)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
cil_log(enum cil_log_level lvl,const char * msg,...)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
cil_set_log_level(enum cil_log_level lvl)69 void cil_set_log_level(enum cil_log_level lvl)
70 {
71 cil_log_level = lvl;
72 }
73