![file](/assets/img/avatar_default.png)
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@30603 f38db490-d61c-443f-a65b-d21fe96a405b
994 lines
25 KiB
C
994 lines
25 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2006, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Asterisk Logger
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*
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* Logging routines
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*
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* \author Mark Spencer <markster@digium.com>
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*/
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <time.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <sys/stat.h>
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#ifdef STACK_BACKTRACES
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#include <execinfo.h>
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#define MAX_BACKTRACE_FRAMES 20
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#endif
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#define SYSLOG_NAMES /* so we can map syslog facilities names to their numeric values,
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from <syslog.h> which is included by logger.h */
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#include <syslog.h>
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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static int syslog_level_map[] = {
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LOG_DEBUG,
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LOG_INFO, /* arbitrary equivalent of LOG_EVENT */
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LOG_NOTICE,
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LOG_WARNING,
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LOG_ERR,
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LOG_DEBUG,
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LOG_DEBUG
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};
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#define SYSLOG_NLEVELS sizeof(syslog_level_map) / sizeof(int)
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#include "asterisk/logger.h"
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#include "asterisk/lock.h"
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#include "asterisk/options.h"
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#include "asterisk/channel.h"
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#include "asterisk/config.h"
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#include "asterisk/term.h"
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#include "asterisk/cli.h"
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#include "asterisk/utils.h"
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#include "asterisk/manager.h"
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#define MAX_MSG_QUEUE 200
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#if defined(__linux__) && !defined(__NR_gettid)
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#include <asm/unistd.h>
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#endif
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#if defined(__linux__) && defined(__NR_gettid)
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#define GETTID() syscall(__NR_gettid)
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#else
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#define GETTID() getpid()
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#endif
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static char dateformat[256] = "%b %e %T"; /* Original Asterisk Format */
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AST_MUTEX_DEFINE_STATIC(msglist_lock);
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AST_MUTEX_DEFINE_STATIC(loglock);
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static int filesize_reload_needed = 0;
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static int global_logmask = -1;
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static struct {
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unsigned int queue_log:1;
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unsigned int event_log:1;
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} logfiles = { 1, 1 };
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static struct msglist {
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char *msg;
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struct msglist *next;
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} *list = NULL, *last = NULL;
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static char hostname[MAXHOSTNAMELEN];
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enum logtypes {
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LOGTYPE_SYSLOG,
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LOGTYPE_FILE,
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LOGTYPE_CONSOLE,
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};
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struct logchannel {
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int logmask; /* What to log to this channel */
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int disabled; /* If this channel is disabled or not */
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int facility; /* syslog facility */
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enum logtypes type; /* Type of log channel */
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FILE *fileptr; /* logfile logging file pointer */
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char filename[256]; /* Filename */
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struct logchannel *next; /* Next channel in chain */
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};
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static struct logchannel *logchannels = NULL;
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static int msgcnt = 0;
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static FILE *eventlog = NULL;
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static FILE *qlog = NULL;
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static char *levels[] = {
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"DEBUG",
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"EVENT",
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"NOTICE",
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"WARNING",
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"ERROR",
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"VERBOSE",
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"DTMF"
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};
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static int colors[] = {
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COLOR_BRGREEN,
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COLOR_BRBLUE,
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COLOR_YELLOW,
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COLOR_BRRED,
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COLOR_RED,
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COLOR_GREEN,
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COLOR_BRGREEN
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};
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static int make_components(char *s, int lineno)
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{
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char *w;
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int res = 0;
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char *stringp=NULL;
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stringp=s;
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w = strsep(&stringp, ",");
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while(w) {
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while(*w && (*w < 33))
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w++;
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if (!strcasecmp(w, "error"))
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res |= (1 << __LOG_ERROR);
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else if (!strcasecmp(w, "warning"))
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res |= (1 << __LOG_WARNING);
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else if (!strcasecmp(w, "notice"))
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res |= (1 << __LOG_NOTICE);
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else if (!strcasecmp(w, "event"))
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res |= (1 << __LOG_EVENT);
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else if (!strcasecmp(w, "debug"))
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res |= (1 << __LOG_DEBUG);
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else if (!strcasecmp(w, "verbose"))
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res |= (1 << __LOG_VERBOSE);
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else if (!strcasecmp(w, "dtmf"))
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res |= (1 << __LOG_DTMF);
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else {
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fprintf(stderr, "Logfile Warning: Unknown keyword '%s' at line %d of logger.conf\n", w, lineno);
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}
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w = strsep(&stringp, ",");
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}
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return res;
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}
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static struct logchannel *make_logchannel(char *channel, char *components, int lineno)
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{
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struct logchannel *chan;
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char *facility;
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#ifndef SOLARIS
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CODE *cptr;
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#endif
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if (ast_strlen_zero(channel) || !(chan = ast_calloc(1, sizeof(*chan))))
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return NULL;
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if (!strcasecmp(channel, "console")) {
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chan->type = LOGTYPE_CONSOLE;
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} else if (!strncasecmp(channel, "syslog", 6)) {
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/*
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* syntax is:
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* syslog.facility => level,level,level
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*/
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facility = strchr(channel, '.');
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if(!facility++ || !facility) {
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facility = "local0";
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}
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#ifndef SOLARIS
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/*
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* Walk through the list of facilitynames (defined in sys/syslog.h)
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* to see if we can find the one we have been given
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*/
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chan->facility = -1;
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cptr = facilitynames;
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while (cptr->c_name) {
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if (!strcasecmp(facility, cptr->c_name)) {
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chan->facility = cptr->c_val;
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break;
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}
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cptr++;
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}
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#else
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chan->facility = -1;
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if (!strcasecmp(facility, "kern"))
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chan->facility = LOG_KERN;
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else if (!strcasecmp(facility, "USER"))
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chan->facility = LOG_USER;
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else if (!strcasecmp(facility, "MAIL"))
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chan->facility = LOG_MAIL;
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else if (!strcasecmp(facility, "DAEMON"))
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chan->facility = LOG_DAEMON;
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else if (!strcasecmp(facility, "AUTH"))
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chan->facility = LOG_AUTH;
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else if (!strcasecmp(facility, "SYSLOG"))
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chan->facility = LOG_SYSLOG;
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else if (!strcasecmp(facility, "LPR"))
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chan->facility = LOG_LPR;
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else if (!strcasecmp(facility, "NEWS"))
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chan->facility = LOG_NEWS;
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else if (!strcasecmp(facility, "UUCP"))
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chan->facility = LOG_UUCP;
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else if (!strcasecmp(facility, "CRON"))
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chan->facility = LOG_CRON;
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else if (!strcasecmp(facility, "LOCAL0"))
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chan->facility = LOG_LOCAL0;
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else if (!strcasecmp(facility, "LOCAL1"))
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chan->facility = LOG_LOCAL1;
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else if (!strcasecmp(facility, "LOCAL2"))
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chan->facility = LOG_LOCAL2;
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else if (!strcasecmp(facility, "LOCAL3"))
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chan->facility = LOG_LOCAL3;
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else if (!strcasecmp(facility, "LOCAL4"))
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chan->facility = LOG_LOCAL4;
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else if (!strcasecmp(facility, "LOCAL5"))
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chan->facility = LOG_LOCAL5;
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else if (!strcasecmp(facility, "LOCAL6"))
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chan->facility = LOG_LOCAL6;
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else if (!strcasecmp(facility, "LOCAL7"))
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chan->facility = LOG_LOCAL7;
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#endif /* Solaris */
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if (0 > chan->facility) {
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fprintf(stderr, "Logger Warning: bad syslog facility in logger.conf\n");
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free(chan);
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return NULL;
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}
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chan->type = LOGTYPE_SYSLOG;
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snprintf(chan->filename, sizeof(chan->filename), "%s", channel);
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openlog("asterisk", LOG_PID, chan->facility);
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} else {
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if (channel[0] == '/') {
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if(!ast_strlen_zero(hostname)) {
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snprintf(chan->filename, sizeof(chan->filename) - 1,"%s.%s", channel, hostname);
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} else {
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ast_copy_string(chan->filename, channel, sizeof(chan->filename));
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}
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}
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if(!ast_strlen_zero(hostname)) {
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snprintf(chan->filename, sizeof(chan->filename), "%s/%s.%s",(char *)ast_config_AST_LOG_DIR, channel, hostname);
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} else {
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snprintf(chan->filename, sizeof(chan->filename), "%s/%s", (char *)ast_config_AST_LOG_DIR, channel);
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}
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chan->fileptr = fopen(chan->filename, "a");
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if (!chan->fileptr) {
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/* Can't log here, since we're called with a lock */
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fprintf(stderr, "Logger Warning: Unable to open log file '%s': %s\n", chan->filename, strerror(errno));
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}
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chan->type = LOGTYPE_FILE;
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}
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chan->logmask = make_components(components, lineno);
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return chan;
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}
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static void init_logger_chain(void)
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{
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struct logchannel *chan, *cur;
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struct ast_config *cfg;
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struct ast_variable *var;
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char *s;
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/* delete our list of log channels */
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ast_mutex_lock(&loglock);
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chan = logchannels;
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while (chan) {
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cur = chan->next;
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free(chan);
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chan = cur;
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}
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logchannels = NULL;
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ast_mutex_unlock(&loglock);
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global_logmask = 0;
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/* close syslog */
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closelog();
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cfg = ast_config_load("logger.conf");
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/* If no config file, we're fine, set default options. */
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if (!cfg) {
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fprintf(stderr, "Unable to open logger.conf: %s\n", strerror(errno));
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if (!(chan = ast_calloc(1, sizeof(*chan))))
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return;
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chan->type = LOGTYPE_CONSOLE;
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chan->logmask = 28; /*warning,notice,error */
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chan->next = logchannels;
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logchannels = chan;
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global_logmask |= chan->logmask;
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return;
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}
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ast_mutex_lock(&loglock);
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if ((s = ast_variable_retrieve(cfg, "general", "appendhostname"))) {
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if(ast_true(s)) {
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if(gethostname(hostname, sizeof(hostname)-1)) {
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ast_copy_string(hostname, "unknown", sizeof(hostname));
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ast_log(LOG_WARNING, "What box has no hostname???\n");
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}
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} else
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hostname[0] = '\0';
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} else
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hostname[0] = '\0';
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if ((s = ast_variable_retrieve(cfg, "general", "dateformat"))) {
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ast_copy_string(dateformat, s, sizeof(dateformat));
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} else
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ast_copy_string(dateformat, "%b %e %T", sizeof(dateformat));
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if ((s = ast_variable_retrieve(cfg, "general", "queue_log"))) {
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logfiles.queue_log = ast_true(s);
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}
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if ((s = ast_variable_retrieve(cfg, "general", "event_log"))) {
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logfiles.event_log = ast_true(s);
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}
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var = ast_variable_browse(cfg, "logfiles");
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while(var) {
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chan = make_logchannel(var->name, var->value, var->lineno);
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if (chan) {
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chan->next = logchannels;
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logchannels = chan;
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global_logmask |= chan->logmask;
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}
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var = var->next;
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}
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ast_config_destroy(cfg);
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ast_mutex_unlock(&loglock);
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}
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void ast_queue_log(const char *queuename, const char *callid, const char *agent, const char *event, const char *fmt, ...)
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{
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va_list ap;
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ast_mutex_lock(&loglock);
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if (qlog) {
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va_start(ap, fmt);
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fprintf(qlog, "%ld|%s|%s|%s|%s|", (long)time(NULL), callid, queuename, agent, event);
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vfprintf(qlog, fmt, ap);
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fprintf(qlog, "\n");
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va_end(ap);
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fflush(qlog);
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}
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ast_mutex_unlock(&loglock);
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}
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int reload_logger(int rotate)
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{
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char old[AST_CONFIG_MAX_PATH] = "";
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char new[AST_CONFIG_MAX_PATH];
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int event_rotate = rotate, queue_rotate = rotate;
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struct logchannel *f;
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FILE *myf;
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int x, res = 0;
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ast_mutex_lock(&msglist_lock); /* to avoid deadlock */
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ast_mutex_lock(&loglock);
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if (eventlog)
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fclose(eventlog);
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else
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event_rotate = 0;
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eventlog = NULL;
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if (qlog)
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fclose(qlog);
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else
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queue_rotate = 0;
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qlog = NULL;
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mkdir((char *)ast_config_AST_LOG_DIR, 0755);
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f = logchannels;
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while(f) {
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if (f->disabled) {
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f->disabled = 0; /* Re-enable logging at reload */
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manager_event(EVENT_FLAG_SYSTEM, "LogChannel", "Channel: %s\r\nEnabled: Yes\r\n", f->filename);
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}
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if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) {
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fclose(f->fileptr); /* Close file */
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f->fileptr = NULL;
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if(rotate) {
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ast_copy_string(old, f->filename, sizeof(old));
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for(x=0;;x++) {
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snprintf(new, sizeof(new), "%s.%d", f->filename, x);
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myf = fopen((char *)new, "r");
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if (myf) {
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fclose(myf);
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} else {
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break;
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}
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}
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/* do it */
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if (rename(old,new))
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fprintf(stderr, "Unable to rename file '%s' to '%s'\n", old, new);
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}
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}
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f = f->next;
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}
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filesize_reload_needed = 0;
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init_logger_chain();
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if (logfiles.event_log) {
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snprintf(old, sizeof(old), "%s/%s", (char *)ast_config_AST_LOG_DIR, EVENTLOG);
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if (event_rotate) {
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for (x=0;;x++) {
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snprintf(new, sizeof(new), "%s/%s.%d", (char *)ast_config_AST_LOG_DIR, EVENTLOG,x);
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myf = fopen((char *)new, "r");
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if (myf) /* File exists */
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fclose(myf);
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else
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break;
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}
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/* do it */
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if (rename(old,new))
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ast_log(LOG_ERROR, "Unable to rename file '%s' to '%s'\n", old, new);
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}
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eventlog = fopen(old, "a");
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if (eventlog) {
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ast_log(LOG_EVENT, "Restarted Asterisk Event Logger\n");
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if (option_verbose)
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ast_verbose("Asterisk Event Logger restarted\n");
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} else {
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ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno));
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res = -1;
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}
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}
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if (logfiles.queue_log) {
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snprintf(old, sizeof(old), "%s/%s", (char *)ast_config_AST_LOG_DIR, QUEUELOG);
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if (queue_rotate) {
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for (x = 0; ; x++) {
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snprintf(new, sizeof(new), "%s/%s.%d", (char *)ast_config_AST_LOG_DIR, QUEUELOG, x);
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myf = fopen((char *)new, "r");
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if (myf) /* File exists */
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fclose(myf);
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else
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break;
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}
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/* do it */
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if (rename(old, new))
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ast_log(LOG_ERROR, "Unable to rename file '%s' to '%s'\n", old, new);
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}
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qlog = fopen(old, "a");
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if (qlog) {
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ast_queue_log("NONE", "NONE", "NONE", "CONFIGRELOAD", "%s", "");
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ast_log(LOG_EVENT, "Restarted Asterisk Queue Logger\n");
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if (option_verbose)
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ast_verbose("Asterisk Queue Logger restarted\n");
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} else {
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ast_log(LOG_ERROR, "Unable to create queue log: %s\n", strerror(errno));
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res = -1;
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}
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}
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ast_mutex_unlock(&loglock);
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ast_mutex_unlock(&msglist_lock);
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return res;
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}
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static int handle_logger_reload(int fd, int argc, char *argv[])
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{
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if(reload_logger(0)) {
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ast_cli(fd, "Failed to reload the logger\n");
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return RESULT_FAILURE;
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} else
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return RESULT_SUCCESS;
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}
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static int handle_logger_rotate(int fd, int argc, char *argv[])
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{
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if(reload_logger(1)) {
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ast_cli(fd, "Failed to reload the logger and rotate log files\n");
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return RESULT_FAILURE;
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} else
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return RESULT_SUCCESS;
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}
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/*! \brief CLI command to show logging system configuration */
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static int handle_logger_show_channels(int fd, int argc, char *argv[])
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{
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#define FORMATL "%-35.35s %-8.8s %-9.9s "
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struct logchannel *chan;
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ast_mutex_lock(&loglock);
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chan = logchannels;
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ast_cli(fd,FORMATL, "Channel", "Type", "Status");
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ast_cli(fd, "Configuration\n");
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ast_cli(fd,FORMATL, "-------", "----", "------");
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ast_cli(fd, "-------------\n");
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while (chan) {
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ast_cli(fd, FORMATL, chan->filename, chan->type==LOGTYPE_CONSOLE ? "Console" : (chan->type==LOGTYPE_SYSLOG ? "Syslog" : "File"),
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chan->disabled ? "Disabled" : "Enabled");
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ast_cli(fd, " - ");
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if (chan->logmask & (1 << __LOG_DEBUG))
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ast_cli(fd, "Debug ");
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if (chan->logmask & (1 << __LOG_DTMF))
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ast_cli(fd, "DTMF ");
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if (chan->logmask & (1 << __LOG_VERBOSE))
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ast_cli(fd, "Verbose ");
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if (chan->logmask & (1 << __LOG_WARNING))
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ast_cli(fd, "Warning ");
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if (chan->logmask & (1 << __LOG_NOTICE))
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ast_cli(fd, "Notice ");
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if (chan->logmask & (1 << __LOG_ERROR))
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ast_cli(fd, "Error ");
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if (chan->logmask & (1 << __LOG_EVENT))
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ast_cli(fd, "Event ");
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ast_cli(fd, "\n");
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chan = chan->next;
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}
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ast_cli(fd, "\n");
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ast_mutex_unlock(&loglock);
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return RESULT_SUCCESS;
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}
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static struct verb {
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void (*verboser)(const char *string, int opos, int replacelast, int complete);
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struct verb *next;
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} *verboser = NULL;
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static char logger_reload_help[] =
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"Usage: logger reload\n"
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" Reloads the logger subsystem state. Use after restarting syslogd(8) if you are using syslog logging.\n";
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static char logger_rotate_help[] =
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"Usage: logger rotate\n"
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" Rotates and Reopens the log files.\n";
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static char logger_show_channels_help[] =
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"Usage: logger show channels\n"
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" Show configured logger channels.\n";
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static struct ast_cli_entry logger_show_channels_cli =
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{ { "logger", "show", "channels", NULL },
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handle_logger_show_channels, "List configured log channels",
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logger_show_channels_help };
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static struct ast_cli_entry reload_logger_cli =
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{ { "logger", "reload", NULL },
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handle_logger_reload, "Reopens the log files",
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logger_reload_help };
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static struct ast_cli_entry rotate_logger_cli =
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{ { "logger", "rotate", NULL },
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handle_logger_rotate, "Rotates and reopens the log files",
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logger_rotate_help };
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static int handle_SIGXFSZ(int sig)
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{
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/* Indicate need to reload */
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filesize_reload_needed = 1;
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return 0;
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}
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int init_logger(void)
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{
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char tmp[256];
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int res = 0;
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/* auto rotate if sig SIGXFSZ comes a-knockin */
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(void) signal(SIGXFSZ,(void *) handle_SIGXFSZ);
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/* register the relaod logger cli command */
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ast_cli_register(&reload_logger_cli);
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ast_cli_register(&rotate_logger_cli);
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ast_cli_register(&logger_show_channels_cli);
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mkdir((char *)ast_config_AST_LOG_DIR, 0755);
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/* create log channels */
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init_logger_chain();
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/* create the eventlog */
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if (logfiles.event_log) {
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mkdir((char *)ast_config_AST_LOG_DIR, 0755);
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snprintf(tmp, sizeof(tmp), "%s/%s", (char *)ast_config_AST_LOG_DIR, EVENTLOG);
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eventlog = fopen((char *)tmp, "a");
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if (eventlog) {
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ast_log(LOG_EVENT, "Started Asterisk Event Logger\n");
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if (option_verbose)
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ast_verbose("Asterisk Event Logger Started %s\n",(char *)tmp);
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} else {
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ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno));
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res = -1;
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}
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}
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if (logfiles.queue_log) {
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snprintf(tmp, sizeof(tmp), "%s/%s", (char *)ast_config_AST_LOG_DIR, QUEUELOG);
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qlog = fopen(tmp, "a");
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ast_queue_log("NONE", "NONE", "NONE", "QUEUESTART", "%s", "");
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}
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return res;
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}
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void close_logger(void)
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{
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struct msglist *m, *tmp;
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ast_mutex_lock(&msglist_lock);
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m = list;
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while(m) {
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if (m->msg) {
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free(m->msg);
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}
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tmp = m->next;
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free(m);
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m = tmp;
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}
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list = last = NULL;
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msgcnt = 0;
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ast_mutex_unlock(&msglist_lock);
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return;
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}
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static void ast_log_vsyslog(int level, const char *file, int line, const char *function, const char *fmt, va_list args)
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{
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char buf[BUFSIZ];
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char *s;
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if (level >= SYSLOG_NLEVELS) {
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/* we are locked here, so cannot ast_log() */
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fprintf(stderr, "ast_log_vsyslog called with bogus level: %d\n", level);
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return;
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}
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if (level == __LOG_VERBOSE) {
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snprintf(buf, sizeof(buf), "VERBOSE[%ld]: ", (long)GETTID());
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level = __LOG_DEBUG;
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} else if (level == __LOG_DTMF) {
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snprintf(buf, sizeof(buf), "DTMF[%ld]: ", (long)GETTID());
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level = __LOG_DEBUG;
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} else {
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snprintf(buf, sizeof(buf), "%s[%ld]: %s:%d in %s: ",
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levels[level], (long)GETTID(), file, line, function);
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}
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s = buf + strlen(buf);
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vsnprintf(s, sizeof(buf) - strlen(buf), fmt, args);
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term_strip(s, s, strlen(s) + 1);
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syslog(syslog_level_map[level], "%s", buf);
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}
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/*
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* send log messages to syslog and/or the console
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*/
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void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
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{
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struct logchannel *chan;
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char buf[BUFSIZ];
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time_t t;
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struct tm tm;
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char date[256];
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va_list ap;
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/* don't display LOG_DEBUG messages unless option_verbose _or_ option_debug
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are non-zero; LOG_DEBUG messages can still be displayed if option_debug
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is zero, if option_verbose is non-zero (this allows for 'level zero'
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LOG_DEBUG messages to be displayed, if the logmask on any channel
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allows it)
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*/
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if (!option_verbose && !option_debug && (level == __LOG_DEBUG)) {
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return;
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}
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/* Ignore anything that never gets logged anywhere */
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if (!(global_logmask & (1 << level)))
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return;
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/* Ignore anything other than the currently debugged file if there is one */
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if ((level == __LOG_DEBUG) && !ast_strlen_zero(debug_filename) && strcasecmp(debug_filename, file))
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return;
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/* begin critical section */
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ast_mutex_lock(&loglock);
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time(&t);
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localtime_r(&t, &tm);
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strftime(date, sizeof(date), dateformat, &tm);
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if (logfiles.event_log && level == __LOG_EVENT) {
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va_start(ap, fmt);
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fprintf(eventlog, "%s asterisk[%ld]: ", date, (long)getpid());
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vfprintf(eventlog, fmt, ap);
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fflush(eventlog);
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va_end(ap);
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ast_mutex_unlock(&loglock);
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return;
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}
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if (logchannels) {
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chan = logchannels;
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while(chan && !chan->disabled) {
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/* Check syslog channels */
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if (chan->type == LOGTYPE_SYSLOG && (chan->logmask & (1 << level))) {
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va_start(ap, fmt);
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ast_log_vsyslog(level, file, line, function, fmt, ap);
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va_end(ap);
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/* Console channels */
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} else if ((chan->logmask & (1 << level)) && (chan->type == LOGTYPE_CONSOLE)) {
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char linestr[128];
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char tmp1[80], tmp2[80], tmp3[80], tmp4[80];
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if (level != __LOG_VERBOSE) {
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sprintf(linestr, "%d", line);
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snprintf(buf, sizeof(buf), ast_opt_timestamp ? "[%s] %s[%ld]: %s:%s %s: " : "%s %s[%ld]: %s:%s %s: ",
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date,
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term_color(tmp1, levels[level], colors[level], 0, sizeof(tmp1)),
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(long)GETTID(),
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term_color(tmp2, file, COLOR_BRWHITE, 0, sizeof(tmp2)),
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term_color(tmp3, linestr, COLOR_BRWHITE, 0, sizeof(tmp3)),
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term_color(tmp4, function, COLOR_BRWHITE, 0, sizeof(tmp4)));
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ast_console_puts_mutable(buf);
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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ast_console_puts_mutable(buf);
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}
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/* File channels */
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} else if ((chan->logmask & (1 << level)) && (chan->fileptr)) {
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int res;
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snprintf(buf, sizeof(buf), ast_opt_timestamp ? "[%s] %s[%ld]: " : "%s %s[%ld] %s: ", date,
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levels[level], (long)GETTID(), file);
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res = fprintf(chan->fileptr, buf);
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if (res <= 0 && buf[0] != '\0') { /* Error, no characters printed */
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fprintf(stderr,"**** Asterisk Logging Error: ***********\n");
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if (errno == ENOMEM || errno == ENOSPC) {
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fprintf(stderr, "Asterisk logging error: Out of disk space, can't log to log file %s\n", chan->filename);
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} else
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fprintf(stderr, "Logger Warning: Unable to write to log file '%s': %s (disabled)\n", chan->filename, strerror(errno));
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manager_event(EVENT_FLAG_SYSTEM, "LogChannel", "Channel: %s\r\nEnabled: No\r\nReason: %d - %s\r\n", chan->filename, errno, strerror(errno));
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chan->disabled = 1;
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} else {
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/* No error message, continue printing */
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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term_strip(buf, buf, sizeof(buf));
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fputs(buf, chan->fileptr);
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fflush(chan->fileptr);
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}
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}
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chan = chan->next;
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}
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} else {
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/*
|
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* we don't have the logger chain configured yet,
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* so just log to stdout
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*/
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if (level != __LOG_VERBOSE) {
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
|
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fputs(buf, stdout);
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}
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}
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ast_mutex_unlock(&loglock);
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/* end critical section */
|
|
if (filesize_reload_needed) {
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|
reload_logger(1);
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|
ast_log(LOG_EVENT,"Rotated Logs Per SIGXFSZ (Exceeded file size limit)\n");
|
|
if (option_verbose)
|
|
ast_verbose("Rotated Logs Per SIGXFSZ (Exceeded file size limit)\n");
|
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}
|
|
}
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|
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void ast_backtrace(void)
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|
{
|
|
#ifdef STACK_BACKTRACES
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|
int count=0, i=0;
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|
void **addresses;
|
|
char **strings;
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|
|
|
if ((addresses = ast_calloc(MAX_BACKTRACE_FRAMES, sizeof(*addresses)))) {
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count = backtrace(addresses, MAX_BACKTRACE_FRAMES);
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|
if ((strings = backtrace_symbols(addresses, count))) {
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|
ast_log(LOG_DEBUG, "Got %d backtrace record%c\n", count, count != 1 ? 's' : ' ');
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for (i=0; i < count ; i++) {
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ast_log(LOG_DEBUG, "#%d: [%08X] %s\n", i, (unsigned int)addresses[i], strings[i]);
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|
}
|
|
free(strings);
|
|
} else {
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|
ast_log(LOG_DEBUG, "Could not allocate memory for backtrace\n");
|
|
}
|
|
free(addresses);
|
|
}
|
|
#else
|
|
#ifdef Linux
|
|
ast_log(LOG_WARNING, "Must compile with 'make dont-optimize' for stack backtraces\n");
|
|
#else
|
|
ast_log(LOG_WARNING, "Inline stack backtraces are only available on the Linux platform.\n");
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
void ast_verbose(const char *fmt, ...)
|
|
{
|
|
static char stuff[4096];
|
|
static int len = 0;
|
|
static int replacelast = 0;
|
|
|
|
int complete;
|
|
int olen;
|
|
struct msglist *m;
|
|
struct verb *v;
|
|
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
|
|
if (ast_opt_timestamp) {
|
|
time_t t;
|
|
struct tm tm;
|
|
char date[40];
|
|
char *datefmt;
|
|
|
|
time(&t);
|
|
localtime_r(&t, &tm);
|
|
strftime(date, sizeof(date), dateformat, &tm);
|
|
datefmt = alloca(strlen(date) + 3 + strlen(fmt) + 1);
|
|
}
|
|
|
|
/* this lock is also protecting against multiple threads
|
|
being in this function at the same time, so it must be
|
|
held before any of the static variables are accessed
|
|
*/
|
|
ast_mutex_lock(&msglist_lock);
|
|
|
|
/* there is a potential security problem here: if formatting
|
|
the current date using 'dateformat' results in a string
|
|
containing '%', then the vsnprintf() call below will
|
|
probably try to access random memory
|
|
*/
|
|
vsnprintf(stuff + len, sizeof(stuff) - len, fmt, ap);
|
|
va_end(ap);
|
|
|
|
olen = len;
|
|
len = strlen(stuff);
|
|
|
|
complete = (stuff[len - 1] == '\n') ? 1 : 0;
|
|
|
|
/* If we filled up the stuff completely, then log it even without the '\n' */
|
|
if (len >= sizeof(stuff) - 1) {
|
|
complete = 1;
|
|
len = 0;
|
|
}
|
|
|
|
if (complete) {
|
|
if (msgcnt < MAX_MSG_QUEUE) {
|
|
/* Allocate new structure */
|
|
if ((m = ast_malloc(sizeof(*m))))
|
|
msgcnt++;
|
|
} else {
|
|
/* Recycle the oldest entry */
|
|
m = list;
|
|
list = list->next;
|
|
free(m->msg);
|
|
}
|
|
if (m) {
|
|
if ((m->msg = ast_strdup(stuff))) {
|
|
if (last)
|
|
last->next = m;
|
|
else
|
|
list = m;
|
|
m->next = NULL;
|
|
last = m;
|
|
} else {
|
|
msgcnt--;
|
|
free(m);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (v = verboser; v; v = v->next)
|
|
v->verboser(stuff, olen, replacelast, complete);
|
|
|
|
ast_log(LOG_VERBOSE, "%s", stuff);
|
|
|
|
if (len) {
|
|
if (!complete)
|
|
replacelast = 1;
|
|
else
|
|
replacelast = len = 0;
|
|
}
|
|
|
|
ast_mutex_unlock(&msglist_lock);
|
|
}
|
|
|
|
int ast_verbose_dmesg(void (*v)(const char *string, int opos, int replacelast, int complete))
|
|
{
|
|
struct msglist *m;
|
|
ast_mutex_lock(&msglist_lock);
|
|
m = list;
|
|
while(m) {
|
|
/* Send all the existing entries that we have queued (i.e. they're likely to have missed) */
|
|
v(m->msg, 0, 0, 1);
|
|
m = m->next;
|
|
}
|
|
ast_mutex_unlock(&msglist_lock);
|
|
return 0;
|
|
}
|
|
|
|
int ast_register_verbose(void (*v)(const char *string, int opos, int replacelast, int complete))
|
|
{
|
|
struct msglist *m;
|
|
struct verb *tmp;
|
|
/* XXX Should be more flexible here, taking > 1 verboser XXX */
|
|
if ((tmp = ast_malloc(sizeof(*tmp)))) {
|
|
tmp->verboser = v;
|
|
ast_mutex_lock(&msglist_lock);
|
|
tmp->next = verboser;
|
|
verboser = tmp;
|
|
m = list;
|
|
while(m) {
|
|
/* Send all the existing entries that we have queued (i.e. they're likely to have missed) */
|
|
v(m->msg, 0, 0, 1);
|
|
m = m->next;
|
|
}
|
|
ast_mutex_unlock(&msglist_lock);
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int ast_unregister_verbose(void (*v)(const char *string, int opos, int replacelast, int complete))
|
|
{
|
|
int res = -1;
|
|
struct verb *tmp, *tmpl=NULL;
|
|
ast_mutex_lock(&msglist_lock);
|
|
tmp = verboser;
|
|
while(tmp) {
|
|
if (tmp->verboser == v) {
|
|
if (tmpl)
|
|
tmpl->next = tmp->next;
|
|
else
|
|
verboser = tmp->next;
|
|
free(tmp);
|
|
break;
|
|
}
|
|
tmpl = tmp;
|
|
tmp = tmp->next;
|
|
}
|
|
if (tmp)
|
|
res = 0;
|
|
ast_mutex_unlock(&msglist_lock);
|
|
return res;
|
|
}
|