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/* Zebra logging funcions.
* Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _ZEBRA_LOG_H
#define _ZEBRA_LOG_H
#include <syslog.h>
#define ZLOG_NOLOG 0x00
#define ZLOG_FILE 0x01
#define ZLOG_SYSLOG 0x02
#define ZLOG_STDOUT 0x04
#define ZLOG_STDERR 0x08
typedef enum
{
ZLOG_NONE,
ZLOG_DEFAULT,
ZLOG_ZEBRA,
ZLOG_RIP,
ZLOG_BGP,
ZLOG_OSPF,
ZLOG_RIPNG,
ZLOG_OSPF6,
ZLOG_ISIS,
ZLOG_MASC
} zlog_proto_t;
struct zlog
{
const char *ident; /* daemon name (first arg to openlog) */
zlog_proto_t protocol;
int flags; /* mask indicating which destinations to log to */
FILE *fp;
char *filename;
int maskpri; /* discard messages with priority > maskpri */
int facility; /* as per syslog facility */
int record_priority; /* should messages logged through stdio include the
priority of the message? */
int syslog_options; /* 2nd arg to openlog */
};
/* Message structure. */
struct message
{
int key;
const char *str;
};
/* Default logging strucutre. */
extern struct zlog *zlog_default;
/* Open zlog function */
struct zlog *openzlog (const char *, int, zlog_proto_t, int, int);
/* Close zlog function. */
void closezlog (struct zlog *zl);
/* GCC have printf type attribute check. */
#ifdef __GNUC__
#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
#else
#define PRINTF_ATTRIBUTE(a,b)
#endif /* __GNUC__ */
/* Generic function for zlog. */
void zlog (struct zlog *zl, int priority, const char *format, ...) PRINTF_ATTRIBUTE(3, 4);
/* Handy zlog functions. */
void zlog_err (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
void zlog_warn (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
void zlog_info (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
void zlog_notice (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
void zlog_debug (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
/* For bgpd's peer oriented log. */
void plog_err (struct zlog *, const char *format, ...);
void plog_warn (struct zlog *, const char *format, ...);
void plog_info (struct zlog *, const char *format, ...);
void plog_notice (struct zlog *, const char *format, ...);
void plog_debug (struct zlog *, const char *format, ...);
/* Set zlog flags. */
void zlog_set_flag (struct zlog *zl, int flags);
void zlog_reset_flag (struct zlog *zl, int flags);
/* Set zlog filename. */
int zlog_set_file (struct zlog *zl, const char *filename);
int zlog_reset_file (struct zlog *zl);
/* Rotate log. */
int zlog_rotate (struct zlog *);
/* For hackey massage lookup and check */
#define LOOKUP(x, y) mes_lookup(x, x ## _max, y)
const char *lookup (struct message *, int);
const char *mes_lookup (struct message *meslist, int max, int index);
extern const char *zlog_priority[];
/* Safe version of strerror -- never returns NULL. */
extern const char *safe_strerror(int errnum);
/* To be called when a fatal signal is caught. */
extern void zlog_signal(int signo, const char *action);
/* Log a backtrace. */
extern void zlog_backtrace(int priority);
/* Log a backtrace, but in an async-signal-safe way. Should not be
called unless the program is about to exit or abort, since it messes
up the state of zlog file pointers. */
extern void zlog_backtrace_sigsafe(int priority);
#endif /* _ZEBRA_LOG_H */
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