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-rw-r--r--lib/log.c167
1 files changed, 76 insertions, 91 deletions
diff --git a/lib/log.c b/lib/log.c
index d3106cb4..b68896ca 100644
--- a/lib/log.c
+++ b/lib/log.c
@@ -1,4 +1,7 @@
-/* Logging of zebra
+/*
+ * $Id: log.c,v 1.17 2004/12/07 15:39:32 ajs Exp $
+ *
+ * Logging of zebra
* Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro
*
* This file is part of GNU Zebra.
@@ -104,12 +107,8 @@ vzlog (struct zlog *zl, int priority, const char *format, va_list args)
return;
}
- /* only log this information if it has not been masked out */
- if ( priority > zl->maskpri )
- return ;
-
/* Syslog output */
- if (zl->flags & ZLOG_SYSLOG)
+ if (priority <= zl->maxlvl[ZLOG_DEST_SYSLOG])
{
va_list ac;
va_copy(ac, args);
@@ -118,7 +117,7 @@ vzlog (struct zlog *zl, int priority, const char *format, va_list args)
}
/* File output. */
- if (zl->flags & ZLOG_FILE)
+ if ((priority <= zl->maxlvl[ZLOG_DEST_FILE]) && zl->fp)
{
va_list ac;
time_print (zl->fp);
@@ -133,7 +132,7 @@ vzlog (struct zlog *zl, int priority, const char *format, va_list args)
}
/* stdout output. */
- if (zl->flags & ZLOG_STDOUT)
+ if (priority <= zl->maxlvl[ZLOG_DEST_STDOUT])
{
va_list ac;
time_print (stdout);
@@ -147,23 +146,10 @@ vzlog (struct zlog *zl, int priority, const char *format, va_list args)
fflush (stdout);
}
- /* stderr output. */
- if (zl->flags & ZLOG_STDERR)
- {
- va_list ac;
- time_print (stderr);
- if (zl->record_priority)
- fprintf (stderr, "%s: ", zlog_priority[priority]);
- fprintf (stderr, "%s: ", zlog_proto_names[zl->protocol]);
- va_copy(ac, args);
- vfprintf (stderr, format, ac);
- va_end(ac);
- fprintf (stderr, "\n");
- fflush (stderr);
- }
-
/* Terminal monitor. */
- vty_log (zlog_proto_names[zl->protocol], format, args);
+ if (priority <= zl->maxlvl[ZLOG_DEST_MONITOR])
+ vty_log ((zl->record_priority ? zlog_priority[priority] : NULL),
+ zlog_proto_names[zl->protocol], format, args);
}
static char *
@@ -297,26 +283,29 @@ zlog_signal(int signo, const char *action)
if (s < buf+sizeof(buf))
*s++ = '\n';
+ /* N.B. implicit priority is most severe */
+#define PRI LOG_EMERG
+
#define DUMP(FP) write(fileno(FP),buf,s-buf);
if (!zlog_default)
DUMP(stderr)
else
{
- if ((zlog_default->flags & ZLOG_FILE) && zlog_default->fp)
+ if ((PRI <= zlog_default->maxlvl[ZLOG_DEST_FILE]) && zlog_default->fp)
DUMP(zlog_default->fp)
- if (zlog_default->flags & ZLOG_STDOUT)
+ if (PRI <= zlog_default->maxlvl[ZLOG_DEST_STDOUT])
DUMP(stdout)
- if (zlog_default->flags & ZLOG_STDERR)
- DUMP(stderr)
- if (zlog_default->flags & ZLOG_SYSLOG)
- {
- *--s = '\0';
- syslog_sigsafe(LOG_ERR|zlog_default->facility,msgstart,s-msgstart);
- }
+ /* Remove trailing '\n' for monitor and syslog */
+ *--s = '\0';
+ if (PRI <= zlog_default->maxlvl[ZLOG_DEST_MONITOR])
+ vty_log_fixed(buf,s-buf);
+ if (PRI <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG])
+ syslog_sigsafe(PRI|zlog_default->facility,msgstart,s-msgstart);
}
#undef DUMP
- zlog_backtrace_sigsafe(LOG_ERR);
+ zlog_backtrace_sigsafe(PRI);
+#undef PRI
#undef LOC
}
@@ -332,10 +321,6 @@ zlog_backtrace_sigsafe(int priority)
char *s;
#define LOC s,buf+sizeof(buf)-s
- /* only log this information if it has not been masked out */
- if (zlog_default && (priority > zlog_default->maskpri))
- return;
-
if (((size = backtrace(array,sizeof(array)/sizeof(array[0]))) <= 0) ||
((size_t)size > sizeof(array)/sizeof(array[0])))
return;
@@ -353,29 +338,34 @@ zlog_backtrace_sigsafe(int priority)
DUMP(stderr)
else
{
- if ((zlog_default->flags & ZLOG_FILE) && zlog_default->fp)
+ if ((priority <= zlog_default->maxlvl[ZLOG_DEST_FILE]) &&
+ zlog_default->fp)
DUMP(zlog_default->fp)
- if (zlog_default->flags & ZLOG_STDOUT)
+ if (priority <= zlog_default->maxlvl[ZLOG_DEST_STDOUT])
DUMP(stdout)
- if (zlog_default->flags & ZLOG_STDERR)
- DUMP(stderr)
- if (zlog_default->flags & ZLOG_SYSLOG)
- {
- int i;
- *--s = '\0';
- syslog_sigsafe(priority|zlog_default->facility,buf,s-buf);
- /* Just print the function addresses. */
- for (i = 0; i < size; i++)
- {
- s = buf;
- s = str_append(LOC,"[bt ");
- s = num_append(LOC,i);
- s = str_append(LOC,"] 0x");
- s = hex_append(LOC,(u_long)(array[i]));
- *s = '\0';
+ /* Remove trailing '\n' for monitor and syslog */
+ *--s = '\0';
+ if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR])
+ vty_log_fixed(buf,s-buf);
+ if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG])
+ syslog_sigsafe(priority|zlog_default->facility,buf,s-buf);
+ {
+ int i;
+ /* Just print the function addresses. */
+ for (i = 0; i < size; i++)
+ {
+ s = buf;
+ s = str_append(LOC,"[bt ");
+ s = num_append(LOC,i);
+ s = str_append(LOC,"] 0x");
+ s = hex_append(LOC,(u_long)(array[i]));
+ *s = '\0';
+ if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR])
+ vty_log_fixed(buf,s-buf);
+ if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG])
syslog_sigsafe(priority|zlog_default->facility,buf,s-buf);
- }
- }
+ }
+ }
}
#undef DUMP
#undef LOC
@@ -476,29 +466,32 @@ _zlog_assert_failed (const char *assertion, const char *file,
{
zlog_err("Assertion `%s' failed in file %s, line %u, function %s",
assertion,file,line,(function ? function : "?"));
- zlog_backtrace(LOG_ERR);
+ zlog_backtrace(LOG_EMERG);
abort();
}
/* Open log stream */
struct zlog *
-openzlog (const char *progname, int flags, zlog_proto_t protocol,
+openzlog (const char *progname, zlog_proto_t protocol,
int syslog_flags, int syslog_facility)
{
struct zlog *zl;
+ u_int i;
- zl = XMALLOC(MTYPE_ZLOG, sizeof (struct zlog));
- memset (zl, 0, sizeof (struct zlog));
+ zl = XCALLOC(MTYPE_ZLOG, sizeof (struct zlog));
zl->ident = progname;
- zl->flags = flags;
zl->protocol = protocol;
zl->facility = syslog_facility;
- zl->maskpri = LOG_DEBUG;
- zl->record_priority = 0;
zl->syslog_options = syslog_flags;
+ /* Set default logging levels. */
+ for (i = 0; i < sizeof(zl->maxlvl)/sizeof(zl->maxlvl[0]); i++)
+ zl->maxlvl[i] = ZLOG_DISABLED;
+ zl->maxlvl[ZLOG_DEST_MONITOR] = LOG_DEBUG;
+ zl->default_lvl = LOG_DEBUG;
+
openlog (progname, syslog_flags, zl->facility);
return zl;
@@ -515,25 +508,16 @@ closezlog (struct zlog *zl)
/* Called from command.c. */
void
-zlog_set_flag (struct zlog *zl, int flags)
+zlog_set_level (struct zlog *zl, zlog_dest_t dest, int log_level)
{
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;
+ zl->maxlvl[dest] = log_level;
}
int
-zlog_set_file (struct zlog *zl, const char *filename)
+zlog_set_file (struct zlog *zl, const char *filename, int log_level)
{
FILE *fp;
mode_t oldumask;
@@ -548,16 +532,13 @@ zlog_set_file (struct zlog *zl, const char *filename)
/* Open file. */
oldumask = umask (0777 & ~LOGFILE_MASK);
fp = fopen (filename, "a");
- if (fp == NULL)
- {
- umask(oldumask);
- return 0;
- }
umask(oldumask);
+ if (fp == NULL)
+ return 0;
/* Set flags. */
zl->filename = strdup (filename);
- zl->flags |= ZLOG_FILE;
+ zl->maxlvl[ZLOG_DEST_FILE] = log_level;
zl->fp = fp;
return 1;
@@ -570,11 +551,10 @@ 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;
+ zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED;
if (zl->filename)
free (zl->filename);
@@ -587,7 +567,7 @@ zlog_reset_file (struct zlog *zl)
int
zlog_rotate (struct zlog *zl)
{
- FILE *fp;
+ int level;
if (zl == NULL)
zl = zlog_default;
@@ -595,20 +575,25 @@ zlog_rotate (struct zlog *zl)
if (zl->fp)
fclose (zl->fp);
zl->fp = NULL;
+ level = zl->maxlvl[ZLOG_DEST_FILE];
+ zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED;
if (zl->filename)
{
mode_t oldumask;
+ int save_errno;
oldumask = umask (0777 & ~LOGFILE_MASK);
- fp = fopen (zl->filename, "a");
- if (fp == NULL)
+ zl->fp = fopen (zl->filename, "a");
+ save_errno = errno;
+ umask(oldumask);
+ if (zl->fp == NULL)
{
- umask(oldumask);
+ zlog_err("Log rotate failed: cannot open file %s for append: %s",
+ zl->filename, safe_strerror(save_errno));
return -1;
}
- umask(oldumask);
- zl->fp = fp;
+ zl->maxlvl[ZLOG_DEST_FILE] = level;
}
return 1;
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-28 15:54:18 +0000