git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5143 65c4cc65-6c06-0410-ace0-fbb531ad65f3
778 lines
18 KiB
C
Executable file
778 lines
18 KiB
C
Executable file
/*
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* Asterisk Logger
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*
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* Mark Spencer <markster@marko.net>
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*
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* Copyright(C)1999, Linux Support Services, Inc.
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*
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* Distributed under the terms of the GNU General Public License (GPL) Version 2
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*
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* Logging routines
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*
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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 <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 <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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#include "asterisk.h"
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#include "astconf.h"
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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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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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};
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#define SYSLOG_NLEVELS 6
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#include <asterisk/logger.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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#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 pending_logger_reload = 0;
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static int global_logmask = -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[256];
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struct logchannel {
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int logmask;
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int facility; /* syslog */
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int syslog; /* syslog flag */
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int console; /* console logging */
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FILE *fileptr; /* logfile logging */
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char filename[256];
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struct logchannel *next;
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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 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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};
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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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};
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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 {
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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))
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return NULL;
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chan = malloc(sizeof(struct logchannel));
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if (chan) {
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memset(chan, 0, sizeof(struct logchannel));
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if (!strcasecmp(channel, "console")) {
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chan->console = 1;
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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 (!strncasecmp(facility, cptr->c_name, sizeof(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
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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->syslog = 1;
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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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strncpy(chan->filename, channel, sizeof(chan->filename) - 1);
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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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}
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chan->logmask = make_components(components, lineno);
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}
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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 */
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if (!cfg)
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return;
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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))) {
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strncpy(hostname, "unknown", sizeof(hostname)-1);
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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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strncpy(dateformat, s, sizeof(dateformat) - 1);
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} else
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strncpy(dateformat, "%b %e %T", sizeof(dateformat) - 1);
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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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static FILE *qlog = NULL;
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AST_MUTEX_DEFINE_STATIC(qloglock);
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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(&qloglock);
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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(&qloglock);
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}
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static void queue_log_init(void)
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{
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char filename[256];
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int reloaded = 0;
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ast_mutex_lock(&qloglock);
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if (qlog) {
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reloaded = 1;
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fclose(qlog);
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qlog = NULL;
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}
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snprintf(filename, sizeof(filename), "%s/%s", (char *)ast_config_AST_LOG_DIR, "queue_log");
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qlog = fopen(filename, "a");
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ast_mutex_unlock(&qloglock);
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if (reloaded)
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ast_queue_log("NONE", "NONE", "NONE", "CONFIGRELOAD", "%s", "");
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else
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ast_queue_log("NONE", "NONE", "NONE", "QUEUESTART", "%s", "");
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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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struct logchannel *f;
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FILE *myf;
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int x;
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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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rotate = 0;
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eventlog = NULL;
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mkdir((char *)ast_config_AST_LOG_DIR, 0755);
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snprintf(old, sizeof(old), "%s/%s", (char *)ast_config_AST_LOG_DIR, EVENTLOG);
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if(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)
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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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fprintf(stderr, "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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f = logchannels;
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while(f) {
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if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) {
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fclose(f->fileptr);
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f->fileptr = NULL;
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if(rotate) {
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strncpy(old, f->filename, sizeof(old) - 1);
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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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ast_mutex_unlock(&loglock);
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queue_log_init();
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if (eventlog) {
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init_logger_chain();
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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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return 0;
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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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init_logger_chain();
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pending_logger_reload = 0;
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return -1;
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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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{
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ast_cli(fd, "Failed to reload the logger\n");
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return RESULT_FAILURE;
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}
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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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{
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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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}
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else
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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)\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 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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pending_logger_reload = 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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/* 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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/* initialize queue logger */
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queue_log_init();
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/* create the eventlog */
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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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init_logger_chain();
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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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return 0;
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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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/* create log channels */
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init_logger_chain();
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return -1;
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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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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);
|
|
return;
|
|
}
|
|
if (level == __LOG_VERBOSE) {
|
|
snprintf(buf, sizeof(buf), "VERBOSE[%ld]: ", (long)GETTID());
|
|
level = __LOG_DEBUG;
|
|
} else {
|
|
snprintf(buf, sizeof(buf), "%s[%ld]: %s:%d in %s: ",
|
|
levels[level], (long)GETTID(), file, line, function);
|
|
}
|
|
vsnprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), fmt, args);
|
|
syslog(syslog_level_map[level], "%s", buf);
|
|
}
|
|
|
|
/*
|
|
* send log messages to syslog and/or the console
|
|
*/
|
|
void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
|
|
{
|
|
struct logchannel *chan;
|
|
char buf[BUFSIZ];
|
|
time_t t;
|
|
struct tm tm;
|
|
char date[256];
|
|
|
|
va_list ap;
|
|
|
|
if (!option_verbose && !option_debug && (level == __LOG_DEBUG)) {
|
|
return;
|
|
}
|
|
/* Ignore anything that never gets logged anywhere */
|
|
if (!(global_logmask & (1 << level)))
|
|
return;
|
|
|
|
/* Ignore anything other than the currently debugged file if there is one */
|
|
if ((level == __LOG_DEBUG) && !ast_strlen_zero(debug_filename) && strcasecmp(debug_filename, file))
|
|
return;
|
|
|
|
/* begin critical section */
|
|
ast_mutex_lock(&loglock);
|
|
|
|
time(&t);
|
|
localtime_r(&t, &tm);
|
|
strftime(date, sizeof(date), dateformat, &tm);
|
|
|
|
if (level == __LOG_EVENT) {
|
|
va_start(ap, fmt);
|
|
|
|
fprintf(eventlog, "%s asterisk[%d]: ", date, getpid());
|
|
vfprintf(eventlog, fmt, ap);
|
|
fflush(eventlog);
|
|
|
|
va_end(ap);
|
|
ast_mutex_unlock(&loglock);
|
|
return;
|
|
}
|
|
|
|
if (logchannels) {
|
|
chan = logchannels;
|
|
while(chan) {
|
|
if (chan->syslog && (chan->logmask & (1 << level))) {
|
|
va_start(ap, fmt);
|
|
ast_log_vsyslog(level, file, line, function, fmt, ap);
|
|
va_end(ap);
|
|
} else if ((chan->logmask & (1 << level)) && (chan->console)) {
|
|
char linestr[128];
|
|
char tmp1[80], tmp2[80], tmp3[80], tmp4[80];
|
|
|
|
if (level != __LOG_VERBOSE) {
|
|
sprintf(linestr, "%d", line);
|
|
snprintf(buf, sizeof(buf), "%s %s[%ld]: %s:%s %s: ",
|
|
date,
|
|
term_color(tmp1, levels[level], colors[level], 0, sizeof(tmp1)),
|
|
(long)GETTID(),
|
|
term_color(tmp2, file, COLOR_BRWHITE, 0, sizeof(tmp2)),
|
|
term_color(tmp3, linestr, COLOR_BRWHITE, 0, sizeof(tmp3)),
|
|
term_color(tmp4, function, COLOR_BRWHITE, 0, sizeof(tmp4)));
|
|
|
|
ast_console_puts(buf);
|
|
va_start(ap, fmt);
|
|
vsnprintf(buf, sizeof(buf), fmt, ap);
|
|
va_end(ap);
|
|
ast_console_puts(buf);
|
|
}
|
|
} else if ((chan->logmask & (1 << level)) && (chan->fileptr)) {
|
|
snprintf(buf, sizeof(buf), "%s %s[%ld]: ", date,
|
|
levels[level], (long)GETTID());
|
|
fprintf(chan->fileptr, buf);
|
|
va_start(ap, fmt);
|
|
vsnprintf(buf, sizeof(buf), fmt, ap);
|
|
va_end(ap);
|
|
fputs(buf, chan->fileptr);
|
|
fflush(chan->fileptr);
|
|
}
|
|
chan = chan->next;
|
|
}
|
|
} else {
|
|
/*
|
|
* we don't have the logger chain configured yet,
|
|
* so just log to stdout
|
|
*/
|
|
if (level != __LOG_VERBOSE) {
|
|
va_start(ap, fmt);
|
|
vsnprintf(buf, sizeof(buf), fmt, ap);
|
|
va_end(ap);
|
|
fputs(buf, stdout);
|
|
}
|
|
}
|
|
|
|
ast_mutex_unlock(&loglock);
|
|
/* end critical section */
|
|
if (pending_logger_reload) {
|
|
reload_logger(1);
|
|
ast_log(LOG_EVENT,"Rotated Logs Per SIGXFSZ\n");
|
|
if (option_verbose)
|
|
ast_verbose("Rotated Logs Per SIGXFSZ\n");
|
|
}
|
|
}
|
|
|
|
extern void ast_verbose(const char *fmt, ...)
|
|
{
|
|
static char stuff[4096];
|
|
static int pos = 0, opos;
|
|
static int replacelast = 0, complete;
|
|
struct msglist *m;
|
|
struct verb *v;
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
ast_mutex_lock(&msglist_lock);
|
|
vsnprintf(stuff + pos, sizeof(stuff) - pos, fmt, ap);
|
|
opos = pos;
|
|
pos = strlen(stuff);
|
|
|
|
if (stuff[strlen(stuff)-1] == '\n')
|
|
complete = 1;
|
|
else
|
|
complete=0;
|
|
if (complete) {
|
|
if (msgcnt < MAX_MSG_QUEUE) {
|
|
/* Allocate new structure */
|
|
m = malloc(sizeof(struct msglist));
|
|
msgcnt++;
|
|
} else {
|
|
/* Recycle the oldest entry */
|
|
m = list;
|
|
list = list->next;
|
|
free(m->msg);
|
|
}
|
|
if (m) {
|
|
m->msg = strdup(stuff);
|
|
if (m->msg) {
|
|
if (last)
|
|
last->next = m;
|
|
else
|
|
list = m;
|
|
m->next = NULL;
|
|
last = m;
|
|
} else {
|
|
msgcnt--;
|
|
ast_log(LOG_ERROR, "Out of memory\n");
|
|
free(m);
|
|
}
|
|
}
|
|
}
|
|
if (verboser) {
|
|
v = verboser;
|
|
while(v) {
|
|
v->verboser(stuff, opos, replacelast, complete);
|
|
v = v->next;
|
|
}
|
|
} /* else
|
|
fprintf(stdout, stuff + opos); */
|
|
|
|
ast_log(LOG_VERBOSE, "%s", stuff);
|
|
if (strlen(stuff)) {
|
|
if (stuff[strlen(stuff)-1] != '\n')
|
|
replacelast = 1;
|
|
else
|
|
replacelast = pos = 0;
|
|
}
|
|
va_end(ap);
|
|
|
|
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 = malloc(sizeof (struct verb)))) {
|
|
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;
|
|
}
|