research.m1stereo.tv/gitweb/ - melted/blob - src/melted/melted_log.c

   1 /*
   2  * melted_log.c -- logging facility implementation
   3  * Copyright (C) 2002-2009 Ushodaya Enterprises Limited
   4  * Author: Dan Dennedy <dan@dennedy.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <stdarg.h>
  22 #include <syslog.h>
  23 #include <stdio.h>
  24
  25 #include "melted_log.h"
  26
  27 static int log_output = log_stderr;
  28 static int threshold = LOG_DEBUG;
  29
  30 void melted_log_init( enum log_output method, int new_threshold )
  31 {
  32         log_output = method;
  33         threshold = new_threshold;
  34         if (method == log_syslog)
  35                 openlog( "melted", LOG_CONS, LOG_DAEMON );
  36
  37 }
  38
  39 void melted_log( int priority, const char *format, ... )
  40 {
  41         va_list list;
  42         va_start( list, format );
  43         if ( LOG_PRI(priority) <= threshold )
  44         {
  45                 if ( log_output == log_syslog )
  46                 {
  47                                 vsyslog( priority, format, list );
  48                 }
  49                 else
  50                 {
  51                         char line[1024];
  52                         if ( snprintf( line, 1024, "(%d) %s\n", priority, format ) != 0 )
  53                                 vfprintf( stderr, line, list );
  54                 }
  55         }
  56         va_end( list );
  57 }