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/*
* Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* i4b daemon - logging routines
* -----------------------------
*
* $FreeBSD$
*
* last edit-date: [Sun Feb 14 10:11:18 1999]
*
*---------------------------------------------------------------------------*/
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include <errno.h>
#include <syslog.h>
#include <unistd.h>
#include <regex.h>
#include <machine/i4b_ioctl.h>
#include "isdnd.h"
#define LOGBUFLEN 256
extern int do_monitor;
extern int accepted;
extern FILE *logfp;
static void check_reg(char *logstring);
struct logtab {
char *text;
int pri;
};
/*---------------------------------------------------------------------------*
* table for converting internal log levels into syslog levels
*---------------------------------------------------------------------------*/
static struct logtab logtab[] = {
{"ERR", LOG_ERR}, /* error conditions */
{"WRN", LOG_WARNING}, /* warning conditions, nonfatal */
{"DMN", LOG_NOTICE}, /* normal but significant condition, daemon*/
{"CHD", LOG_INFO}, /* informational, call handling */
{"DBG", LOG_DEBUG} /* debug messages */
};
/*---------------------------------------------------------------------------*
* initialize logging
*---------------------------------------------------------------------------*/
void
init_log(void)
{
int i;
if(uselogfile)
{
if((logfp = fopen(logfile, "a")) == NULL)
{
fprintf(stderr, "ERROR, cannot open logfile %s: %s\n",
logfile, strerror(errno));
exit(1);
}
/* set unbuffered operation */
setvbuf(logfp, (char *)NULL, _IONBF, 0);
}
else
{
#if DEBUG
if(do_debug && do_fork == 0 && do_fullscreen == 0)
(void)openlog("isdnd",
LOG_PID|LOG_CONS|LOG_NDELAY|LOG_PERROR,
logfacility);
else
#endif
(void)openlog("isdnd", LOG_PID|LOG_CONS|LOG_NDELAY,
logfacility);
}
/* initialize the regexp array */
for(i = 0; i < MAX_RE; i++)
{
char *p;
char buf[64];
sprintf(buf, "%s%d", REGPROG_DEF, i);
rarr[i].re_flg = 0;
if((p = malloc(strlen(buf) + 1)) == NULL)
{
log(LL_DBG, "init_log: malloc failed: %s", strerror(errno));
do_exit(1);
}
strcpy(p, buf);
rarr[i].re_prog = p;
}
}
/*---------------------------------------------------------------------------*
* finish logging
*---------------------------------------------------------------------------*/
void
finish_log(void)
{
if(uselogfile)
{
fflush(logfp);
fclose(logfp);
}
else
{
(void)closelog();
}
}
/*---------------------------------------------------------------------------*
* place entry into logfile
*---------------------------------------------------------------------------*/
void
log(int what, const char *fmt, ...)
{
char buffer[LOGBUFLEN];
register char *dp;
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, LOGBUFLEN-1, fmt, ap);
va_end(ap);
dp = getlogdatetime(); /* get time string ptr */
#ifdef USE_CURSES
/* put log on screen ? */
if((do_fullscreen && curses_ready) &&
((!debug_noscreen) || (debug_noscreen && (what != LL_DBG))))
{
wprintw(lower_w, "%s %s %-.*s\n", dp, logtab[what].text,
COLS-((strlen(dp))+(strlen(logtab[what].text))+2), buffer);
wrefresh(lower_w);
}
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_log(logtab[what].pri, logtab[what].text, buffer);
#endif
if(uselogfile)
{
fprintf(logfp, "%s %s %s\n", dp, logtab[what].text, buffer);
}
else
{
register char *s = buffer;
/* strip leading spaces from syslog output */
while(*s && (*s == ' '))
s++;
syslog(logtab[what].pri, "%s %s", logtab[what].text, s);
}
#if DEBUG
if(what != LL_DBG) /* don't check debug logs, endless loop !!! */
#endif
check_reg(buffer);
}
/*---------------------------------------------------------------------------*
* return ptr to static area containing date/time
*---------------------------------------------------------------------------*/
char *
getlogdatetime()
{
static char logdatetime[41];
time_t tim;
register struct tm *tp;
tim = time(NULL);
tp = localtime(&tim);
strftime(logdatetime,40,I4B_TIME_FORMAT,tp);
return(logdatetime);
}
/*---------------------------------------------------------------------------*
* check for a match in the regexp array
*---------------------------------------------------------------------------*/
static void
check_reg(char *logstring)
{
register int i;
for(i = 0; i < MAX_RE; i++)
{
if(rarr[i].re_flg && (!regexec(&(rarr[i].re), logstring, (size_t) 0, NULL, 0)))
{
char* argv[3];
argv[0] = rarr[i].re_prog;
argv[1] = logstring;
argv[2] = NULL;
exec_prog(rarr[i].re_prog, argv);
break;
}
}
}
/* EOF */
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