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718e3744 | 1 | /* Zebra logging funcions. |
2 | * Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #ifndef _ZEBRA_LOG_H | |
23 | #define _ZEBRA_LOG_H | |
24 | ||
25 | #include <syslog.h> | |
26 | ||
27 | #define ZLOG_NOLOG 0x00 | |
28 | #define ZLOG_FILE 0x01 | |
29 | #define ZLOG_SYSLOG 0x02 | |
30 | #define ZLOG_STDOUT 0x04 | |
31 | #define ZLOG_STDERR 0x08 | |
32 | ||
718e3744 | 33 | typedef enum |
34 | { | |
35 | ZLOG_NONE, | |
36 | ZLOG_DEFAULT, | |
37 | ZLOG_ZEBRA, | |
38 | ZLOG_RIP, | |
39 | ZLOG_BGP, | |
40 | ZLOG_OSPF, | |
41 | ZLOG_RIPNG, | |
42 | ZLOG_OSPF6, | |
9e867fe6 | 43 | ZLOG_ISIS, |
718e3744 | 44 | ZLOG_MASC |
45 | } zlog_proto_t; | |
46 | ||
47 | struct zlog | |
48 | { | |
7d149b8e | 49 | const char *ident; /* daemon name (first arg to openlog) */ |
718e3744 | 50 | zlog_proto_t protocol; |
7d149b8e | 51 | int flags; /* mask indicating which destinations to log to */ |
718e3744 | 52 | FILE *fp; |
53 | char *filename; | |
7d149b8e | 54 | int maskpri; /* discard messages with priority > maskpri */ |
718e3744 | 55 | int facility; /* as per syslog facility */ |
7d149b8e | 56 | int record_priority; /* should messages logged through stdio include the |
57 | priority of the message? */ | |
58 | int syslog_options; /* 2nd arg to openlog */ | |
718e3744 | 59 | }; |
60 | ||
61 | /* Message structure. */ | |
62 | struct message | |
63 | { | |
64 | int key; | |
b04c699e | 65 | const char *str; |
718e3744 | 66 | }; |
67 | ||
68 | /* Default logging strucutre. */ | |
69 | extern struct zlog *zlog_default; | |
70 | ||
71 | /* Open zlog function */ | |
72 | struct zlog *openzlog (const char *, int, zlog_proto_t, int, int); | |
73 | ||
74 | /* Close zlog function. */ | |
75 | void closezlog (struct zlog *zl); | |
76 | ||
77 | /* GCC have printf type attribute check. */ | |
78 | #ifdef __GNUC__ | |
79 | #define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b))) | |
80 | #else | |
81 | #define PRINTF_ATTRIBUTE(a,b) | |
82 | #endif /* __GNUC__ */ | |
83 | ||
84 | /* Generic function for zlog. */ | |
85 | void zlog (struct zlog *zl, int priority, const char *format, ...) PRINTF_ATTRIBUTE(3, 4); | |
86 | ||
87 | /* Handy zlog functions. */ | |
88 | void zlog_err (const char *format, ...) PRINTF_ATTRIBUTE(1, 2); | |
89 | void zlog_warn (const char *format, ...) PRINTF_ATTRIBUTE(1, 2); | |
90 | void zlog_info (const char *format, ...) PRINTF_ATTRIBUTE(1, 2); | |
91 | void zlog_notice (const char *format, ...) PRINTF_ATTRIBUTE(1, 2); | |
92 | void zlog_debug (const char *format, ...) PRINTF_ATTRIBUTE(1, 2); | |
93 | ||
94 | /* For bgpd's peer oriented log. */ | |
95 | void plog_err (struct zlog *, const char *format, ...); | |
96 | void plog_warn (struct zlog *, const char *format, ...); | |
97 | void plog_info (struct zlog *, const char *format, ...); | |
98 | void plog_notice (struct zlog *, const char *format, ...); | |
99 | void plog_debug (struct zlog *, const char *format, ...); | |
100 | ||
101 | /* Set zlog flags. */ | |
102 | void zlog_set_flag (struct zlog *zl, int flags); | |
103 | void zlog_reset_flag (struct zlog *zl, int flags); | |
104 | ||
105 | /* Set zlog filename. */ | |
d246bd96 | 106 | int zlog_set_file (struct zlog *zl, const char *filename); |
718e3744 | 107 | int zlog_reset_file (struct zlog *zl); |
108 | ||
109 | /* Rotate log. */ | |
d246bd96 | 110 | int zlog_rotate (struct zlog *); |
718e3744 | 111 | |
112 | /* For hackey massage lookup and check */ | |
113 | #define LOOKUP(x, y) mes_lookup(x, x ## _max, y) | |
114 | ||
8c328f11 | 115 | const char *lookup (struct message *, int); |
116 | const char *mes_lookup (struct message *meslist, int max, int index); | |
718e3744 | 117 | |
118 | extern const char *zlog_priority[]; | |
119 | ||
ca359769 | 120 | /* Safe version of strerror -- never returns NULL. */ |
121 | extern const char *safe_strerror(int errnum); | |
122 | ||
59a06a91 | 123 | /* To be called when a fatal signal is caught. */ |
124 | extern void zlog_signal(int signo, const char *action); | |
125 | ||
063ee52a | 126 | /* Log a backtrace. */ |
127 | extern void zlog_backtrace(int priority); | |
128 | ||
129 | /* Log a backtrace, but in an async-signal-safe way. Should not be | |
130 | called unless the program is about to exit or abort, since it messes | |
131 | up the state of zlog file pointers. This function needs to be enhanced | |
132 | to support syslog logging. */ | |
48d6c69b | 133 | extern void zlog_backtrace_sigsafe(int priority); |
063ee52a | 134 | |
718e3744 | 135 | #endif /* _ZEBRA_LOG_H */ |