1 /* $Id: log.h,v 1.1 2003/06/04 00:25:38 marka Exp $ */
2 /*
3  * Copyright (c) 2000 Japan Network Information Center.  All rights reserved.
4  *
5  * By using this file, you agree to the terms and conditions set forth bellow.
6  *
7  * 			LICENSE TERMS AND CONDITIONS
8  *
9  * The following License Terms and Conditions apply, unless a different
10  * license is obtained from Japan Network Information Center ("JPNIC"),
11  * a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda,
12  * Chiyoda-ku, Tokyo 101-0047, Japan.
13  *
14  * 1. Use, Modification and Redistribution (including distribution of any
15  *    modified or derived work) in source and/or binary forms is permitted
16  *    under this License Terms and Conditions.
17  *
18  * 2. Redistribution of source code must retain the copyright notices as they
19  *    appear in each source code file, this License Terms and Conditions.
20  *
21  * 3. Redistribution in binary form must reproduce the Copyright Notice,
22  *    this License Terms and Conditions, in the documentation and/or other
23  *    materials provided with the distribution.  For the purposes of binary
24  *    distribution the "Copyright Notice" refers to the following language:
25  *    "Copyright (c) 2000-2002 Japan Network Information Center.  All rights reserved."
26  *
27  * 4. The name of JPNIC may not be used to endorse or promote products
28  *    derived from this Software without specific prior written approval of
29  *    JPNIC.
30  *
31  * 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC
32  *    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  *    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
34  *    PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL JPNIC BE LIABLE
35  *    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
36  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
37  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
38  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
39  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
40  *    OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41  *    ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 #ifndef IDN_LOG_H
45 #define IDN_LOG_H 1
46 
47 #ifdef __cplusplus
48 extern "C" {
49 #endif
50 
51 /*
52  * libidnkit logging facility.
53  */
54 
55 #include <idn/export.h>
56 
57 /*
58  * Log level definition.
59  */
60 enum {
61 	idn_log_level_fatal = 0,
62 	idn_log_level_error = 1,
63 	idn_log_level_warning = 2,
64 	idn_log_level_info = 3,
65 	idn_log_level_trace = 4,
66 	idn_log_level_dump = 5
67 };
68 
69 /*
70  * Log handler type.
71  */
72 typedef void	(*idn_log_proc_t)(int level, const char *msg);
73 
74 /*
75  * Log routines.
76  */
77 IDN_EXPORT void	idn_log_fatal(const char *fmt, ...);
78 IDN_EXPORT void	idn_log_error(const char *fmt, ...);
79 IDN_EXPORT void	idn_log_warning(const char *fmt, ...);
80 IDN_EXPORT void	idn_log_info(const char *fmt, ...);
81 IDN_EXPORT void	idn_log_trace(const char *fmt, ...);
82 IDN_EXPORT void	idn_log_dump(const char *fmt, ...);
83 
84 /*
85  * Set/get log level.
86  *
87  * If log level has not been explicitly defined by 'idn_log_setlevel',
88  * the default level is determined by the value of enrironment
89  * variable 'IDN_LOG_LEVEL'.
90  */
91 IDN_EXPORT void	idn_log_setlevel(int level);
92 IDN_EXPORT int	idn_log_getlevel(void);
93 
94 /*
95  * Set log handler.
96  *
97  * If no log handler is set, log goes to stderr by default.
98  * You can reset the handler to the default one by specifying
99  * NULL.
100  */
101 IDN_EXPORT void	idn_log_setproc(idn_log_proc_t proc);
102 
103 #ifdef __cplusplus
104 }
105 #endif
106 
107 #endif /* IDN_LOG_H */
108