log.c
上传用户:xiaozhuqw
上传日期:2009-11-15
资源大小:1338k
文件大小:9k
- /* Logging of zebra
- * 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.
- */
- #include <zebra.h>
- #include "log.h"
- #include "memory.h"
- #include "command.h"
- struct zlog *zlog_default = NULL;
- const char *zlog_proto_names[] =
- {
- "NONE",
- "DEFAULT",
- "ZEBRA",
- "RIP",
- "BGP",
- "OSPF",
- "RIPNG",
- "OSPF6",
- "MASC",
- NULL,
- };
- const char *zlog_priority[] =
- {
- "emergencies",
- "alerts",
- "critical",
- "errors",
- "warnings",
- "notifications",
- "informational",
- "debugging",
- NULL,
- };
-
- /* For time string format. */
- #define TIME_BUF 27
- /* Utility routine for current time printing. */
- static void
- time_print (FILE *fp)
- {
- int ret;
- char buf [TIME_BUF];
- time_t clock;
- struct tm *tm;
-
- time (&clock);
- tm = localtime (&clock);
- ret = strftime (buf, TIME_BUF, "%Y/%m/%d %H:%M:%S", tm);
- if (ret == 0) {
- zlog_warn ("strftime error");
- }
- fprintf (fp, "%s ", buf);
- }
- /* va_list version of zlog. */
- void
- vzlog (struct zlog *zl, int priority, const char *format, va_list *args)
- {
- /* If zlog is not specified, use default one. */
- if (zl == NULL)
- zl = zlog_default;
- /* When zlog_default is also NULL, use stderr for logging. */
- if (zl == NULL)
- {
- time_print (stderr);
- fprintf (stderr, "%s: ", "unknown");
- vfprintf (stderr, format, args[ZLOG_NOLOG_INDEX]);
- fprintf (stderr, "n");
- fflush (stderr);
- /* In this case we return at here. */
- return;
- }
- /* only log this information if it has not been masked out */
- if ( priority > zl->maskpri )
- return ;
-
- /* Syslog output */
- if (zl->flags & ZLOG_SYSLOG)
- vsyslog (priority|zlog_default->facility, format, args[ZLOG_SYSLOG_INDEX]);
- /* File output. */
- if (zl->flags & ZLOG_FILE)
- {
- time_print (zl->fp);
- if (zl->record_priority) fprintf (zl->fp, "%s: ", zlog_priority[priority]);
- fprintf (zl->fp, "%s: ", zlog_proto_names[zl->protocol]);
- vfprintf (zl->fp, format, args[ZLOG_FILE_INDEX]);
- fprintf (zl->fp, "n");
- fflush (zl->fp);
- }
- /* stdout output. */
- if (zl->flags & ZLOG_STDOUT)
- {
- time_print (stdout);
- if (zl->record_priority) fprintf (stdout, "%s: ", zlog_priority[priority]);
- fprintf (stdout, "%s: ", zlog_proto_names[zl->protocol]);
- vfprintf (stdout, format, args[ZLOG_STDOUT_INDEX]);
- fprintf (stdout, "n");
- fflush (stdout);
- }
- /* stderr output. */
- if (zl->flags & ZLOG_STDERR)
- {
- time_print (stderr);
- if (zl->record_priority) fprintf (stderr, "%s: ", zlog_priority[priority]);
- fprintf (stderr, "%s: ", zlog_proto_names[zl->protocol]);
- vfprintf (stderr, format, args[ZLOG_STDERR_INDEX]);
- fprintf (stderr, "n");
- fflush (stderr);
- }
- /* Terminal monitor. */
- vty_log (zlog_proto_names[zl->protocol], format, args[ZLOG_NOLOG_INDEX]);
- }
- void
- zlog (struct zlog *zl, int priority, const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (zl, priority, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- zlog_err (const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (NULL, LOG_ERR, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- zlog_warn (const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (NULL, LOG_WARNING, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- zlog_info (const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (NULL, LOG_INFO, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- zlog_notice (const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (NULL, LOG_NOTICE, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- zlog_debug (const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (NULL, LOG_DEBUG, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- plog_err (struct zlog *zl, const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (zl, LOG_ERR, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- plog_warn (struct zlog *zl, const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (zl, LOG_WARNING, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- plog_info (struct zlog *zl, const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (zl, LOG_INFO, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- plog_notice (struct zlog *zl, const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (zl, LOG_NOTICE, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- void
- plog_debug (struct zlog *zl, const char *format, ...)
- {
- va_list args[ZLOG_MAX_INDEX];
- int index;
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_start(args[index], format);
- vzlog (zl, LOG_DEBUG, format, args);
- for (index = 0; index < ZLOG_MAX_INDEX; index++)
- va_end (args[index]);
- }
- /* Open log stream */
- struct zlog *
- openzlog (const char *progname, int flags, zlog_proto_t protocol,
- int syslog_flags, int syslog_facility)
- {
- struct zlog *zl;
- zl = XMALLOC(MTYPE_ZLOG, sizeof (struct zlog));
- memset (zl, 0, sizeof (struct zlog));
- zl->ident = progname;
- zl->flags = flags;
- zl->protocol = protocol;
- zl->facility = syslog_facility;
- zl->maskpri = LOG_DEBUG;
- zl->record_priority = 0;
- openlog (progname, syslog_flags, zl->facility);
-
- return zl;
- }
- void
- closezlog (struct zlog *zl)
- {
- closelog();
- fclose (zl->fp);
- XFREE (MTYPE_ZLOG, zl);
- }
- /* Called from command.c. */
- void
- zlog_set_flag (struct zlog *zl, int flags)
- {
- if (zl == NULL)
- zl = zlog_default;
- zl->flags |= flags;
- }
- void
- zlog_reset_flag (struct zlog *zl, int flags)
- {
- if (zl == NULL)
- zl = zlog_default;
- zl->flags &= ~flags;
- }
- int
- zlog_set_file (struct zlog *zl, int flags, char *filename)
- {
- FILE *fp;
- /* There is opend file. */
- zlog_reset_file (zl);
- /* Set default zl. */
- if (zl == NULL)
- zl = zlog_default;
- /* Open file. */
- fp = fopen (filename, "a");
- if (fp == NULL)
- return 0;
- /* Set flags. */
- zl->filename = strdup (filename);
- zl->flags |= ZLOG_FILE;
- zl->fp = fp;
- return 1;
- }
- /* Reset opend file. */
- int
- zlog_reset_file (struct zlog *zl)
- {
- if (zl == NULL)
- zl = zlog_default;
- zl->flags &= ~ZLOG_FILE;
- if (zl->fp)
- fclose (zl->fp);
- zl->fp = NULL;
- if (zl->filename)
- free (zl->filename);
- zl->filename = NULL;
- return 1;
- }
- /* Reopen log file. */
- int
- zlog_rotate (struct zlog *zl)
- {
- FILE *fp;
- if (zl == NULL)
- zl = zlog_default;
- if (zl->fp)
- fclose (zl->fp);
- zl->fp = NULL;
- if (zl->filename)
- {
- fp = fopen (zl->filename, "a");
- if (fp == NULL)
- return -1;
- zl->fp = fp;
- }
- return 1;
- }
- static char *zlog_cwd = NULL;
- void
- zlog_save_cwd ()
- {
- char *cwd;
- cwd = getcwd (NULL, MAXPATHLEN);
- zlog_cwd = XMALLOC (MTYPE_TMP, strlen (cwd) + 1);
- strcpy (zlog_cwd, cwd);
- }
- char *
- zlog_get_cwd ()
- {
- return zlog_cwd;
- }
- void
- zlog_free_cwd ()
- {
- if (zlog_cwd)
- XFREE (MTYPE_TMP, zlog_cwd);
- }
- /* Message lookup function. */
- char *
- lookup (struct message *mes, int key)
- {
- struct message *pnt;
- for (pnt = mes; pnt->key != 0; pnt++)
- if (pnt->key == key)
- return pnt->str;
- return "";
- }
- /* Very old hacky version of message lookup function. Still partly
- used in bgpd and ospfd. */
- char *
- mes_lookup (struct message *meslist, int max, int index)
- {
- if (index < 0 || index >= max)
- {
- zlog_err ("message index out of bound: %d", max);
- return NULL;
- }
- return meslist[index].str;
- }