lib/log.h

   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
  33 #define ZLOG_NOLOG_INDEX        0
  34 #define ZLOG_FILE_INDEX         1
  35 #define ZLOG_SYSLOG_INDEX       2
  36 #define ZLOG_STDOUT_INDEX       3
  37 #define ZLOG_STDERR_INDEX       4
  38 #define ZLOG_MAX_INDEX          5
  39
  40 typedef enum
  41 {
  42   ZLOG_NONE,
  43   ZLOG_DEFAULT,
  44   ZLOG_ZEBRA,
  45   ZLOG_RIP,
  46   ZLOG_BGP,
  47   ZLOG_OSPF,
  48   ZLOG_RIPNG,
  49   ZLOG_OSPF6,
  50   ZLOG_MASC
  51 } zlog_proto_t;
  52
  53 struct zlog
  54 {
  55   const char *ident;
  56   zlog_proto_t protocol;
  57   int flags;
  58   FILE *fp;
  59   char *filename;
  60   int syslog;
  61   int stat;
  62   int connected;
  63   int maskpri;          /* as per syslog setlogmask */
  64   int priority;         /* as per syslog priority */
  65   int facility;         /* as per syslog facility */
  66   int record_priority;
  67 };
  68
  69 /* Message structure. */
  70 struct message
  71 {
  72   int key;
  73   char *str;
  74 };
  75
  76 /* Default logging strucutre. */
  77 extern struct zlog *zlog_default;
  78
  79 /* Open zlog function */
  80 struct zlog *openzlog (const char *, int, zlog_proto_t, int, int);
  81
  82 /* Close zlog function. */
  83 void closezlog (struct zlog *zl);
  84
  85 /* GCC have printf type attribute check.  */
  86 #ifdef __GNUC__
  87 #define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
  88 #else
  89 #define PRINTF_ATTRIBUTE(a,b)
  90 #endif /* __GNUC__ */
  91
  92 /* Generic function for zlog. */
  93 void zlog (struct zlog *zl, int priority, const char *format, ...) PRINTF_ATTRIBUTE(3, 4);
  94
  95 /* Handy zlog functions. */
  96 void zlog_err (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
  97 void zlog_warn (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
  98 void zlog_info (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
  99 void zlog_notice (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
 100 void zlog_debug (const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
 101
 102 /* For bgpd's peer oriented log. */
 103 void plog_err (struct zlog *, const char *format, ...);
 104 void plog_warn (struct zlog *, const char *format, ...);
 105 void plog_info (struct zlog *, const char *format, ...);
 106 void plog_notice (struct zlog *, const char *format, ...);
 107 void plog_debug (struct zlog *, const char *format, ...);
 108
 109 /* Set zlog flags. */
 110 void zlog_set_flag (struct zlog *zl, int flags);
 111 void zlog_reset_flag (struct zlog *zl, int flags);
 112
 113 /* Set zlog filename. */
 114 int zlog_set_file (struct zlog *zl, int flags, char *filename);
 115 int zlog_reset_file (struct zlog *zl);
 116
 117 /* Rotate log. */
 118 int zlog_rotate ();
 119
 120 /* For hackey massage lookup and check */
 121 #define LOOKUP(x, y) mes_lookup(x, x ## _max, y)
 122
 123 char *lookup (struct message *, int);
 124 char *mes_lookup (struct message *meslist, int max, int index);
 125
 126 extern const char *zlog_priority[];
 127
 128 #endif /* _ZEBRA_LOG_H */