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version 1.2
first MQTT service release!

    1: /*************************************************************************
    2: * (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
    3: *  by Michael Pounov <misho@openbsd-bg.org>
    4: *
    5: * $Author: misho $
    6: * $Id: logmqtt.c,v 1.4 2012/07/03 12:46:00 misho Exp $
    7: *
    8: **************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #include "global.h"
   47: 
   48: 
   49: extern char *__progname;
   50: 
   51: 
   52: /*
   53:  * mqtt_rtlm_log() Log message
   54:  *
   55:  * @fmt = format string
   56:  * @... = argument list
   57:  * return: none
   58:  */
   59: static void
   60: mqtt_rtlm_log(const char *fmt, ...)
   61: {
   62: 	va_list lst;
   63: 
   64: 	va_start(lst, fmt);
   65: 	vsyslog(LOG_ERR, fmt, lst);
   66: 	va_end(lst);
   67: }
   68: #define MQTT_RTLM_LOG()	(mqtt_rtlm_log("Error:: System #%d - %s", errno, strerror(errno)))
   69: 
   70: 
   71: /*
   72:  * mqtt_rtlm_open() Open log file
   73:  *
   74:  * @cfg = loaded config
   75:  * return: NULL error or SQL handle
   76:  */
   77: FILE *
   78: mqtt_rtlm_open(cfg_root_t *cfg)
   79: {
   80: 	FILE *f = NULL;
   81: 	const char *str = NULL;
   82: 
   83: 	if (!cfg)
   84: 		return NULL;
   85: 
   86: 	str = cfg_getAttribute(cfg, "mqtt_log", "name");
   87: 	if (!str) {
   88: 		mqtt_rtlm_log("Error:: Unknown file name ...\n");
   89: 		return NULL;
   90: 	}
   91: 
   92: 	if (!(f = fopen(str, "a"))) {
   93: 		MQTT_RTLM_LOG();
   94: 		return NULL;
   95: 	}
   96: 
   97: 	return f;
   98: }
   99: 
  100: /*
  101:  * mqtt_rtlm_close() Close log file
  102:  *
  103:  * @f = File handle
  104:  * return: none
  105:  */
  106: void
  107: mqtt_rtlm_close(FILE *f)
  108: {
  109: 	if (f)
  110: 		fclose(f);
  111: }
  112: 
  113: /*
  114:  * mqtt_rtlm_logger() Logger to file
  115:  *
  116:  * @f = File handle
  117:  * @fmt = Message format
  118:  * @... = argument list
  119:  * return: -1 error or >-1 logged successful
  120:  */
  121: int
  122: mqtt_rtlm_logger(FILE *f, const char *fmt, ...)
  123: {
  124: 	va_list lst;
  125: 	int ret = 0;
  126: 	char szStr[STRSIZ] = { 0 }, szFmt[BUFSIZ] = { 0 };
  127: 	struct tm *tm;
  128: 	time_t tim;
  129: 
  130: 	if (!f || !fmt)
  131: 		return -1;
  132: 
  133: 	tim = time(NULL);
  134: 	tm = localtime(&tim);
  135: 	strftime(szFmt, sizeof szFmt, "[%Y-%m-%d %H:%M:%S] ", tm);
  136: 	snprintf(szStr, sizeof szStr, "%s (%d):: ", __progname, getpid());
  137: 	strlcat(szFmt, szStr, sizeof szFmt);
  138: 	strlcat(szFmt, fmt, sizeof szFmt);
  139: 
  140: 	va_start(lst, fmt);
  141: 	ret = vfprintf(f, szFmt, lst);
  142: 	va_end(lst);
  143: 
  144: 	fflush(f);
  145: 	return ret;
  146: }