utilities.c

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/* 
 * $Id$
 *
 * SNMPStats Module 
 * Copyright (C) 2006 SOMA Networks, INC.
 * Written by: Jeffrey Magder (jmagder@somanetworks.com)
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * Kamailio is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 * History:
 * --------
 * 2006-11-23 initial version (jmagder)
 */

#include <stdlib.h>
#include <string.h>

#include "utilities.h"

#include "../../str.h"
#include "../../locking.h"
#include "../../mem/mem.h"

#include "../../lib/kcore/kstats_wrapper.h"

int convertStrToCharString(str *strToConvert, char **copiedString) 
{
        /* We want enough space for the string, plus 1 for the '\0' character. */
        *copiedString = shm_malloc(sizeof(char) * (strToConvert->len + 1));

        if (*copiedString == NULL)
        {
                return 0;
        }

        memcpy(*copiedString, strToConvert->s, strToConvert->len);
        (*copiedString)[strToConvert->len] = '\0';

        return 1;
}


int stringHandlerSanityCheck( modparam_t type, void *val, char *parameterName) 
{
        char *theString = (char *)val;

        /* Make sure the function was called correctly. */
        if (PARAM_TYPE_MASK(type) != STR_PARAM) {
                LM_ERR("the %s parameter was assigned a type %d instead of %d\n",
                                parameterName, type, STR_PARAM);
                return 0;
        }

        /* An empty string was supplied.  We consider this illegal */
        if (theString==0 || (theString[0])==0) {
                LM_ERR("the %s parameter was specified  with an empty string\n",
                                parameterName); 
                return 0;
        }

        return 1;
}



int get_statistic(char *statName)
{
        long result = 0;

        str theStr;

        theStr.s   = statName;
        theStr.len = strlen(statName);

        stat_var *theVar = get_stat(&theStr);
        
        if (theVar==0) {
                LM_INFO("failed to retrieve statistics for %s\n", statName);
        } else {
                result = get_stat_val(theVar);
        }

        return (int)result;
}

char * convertTMToSNMPDateAndTime(struct tm *timeStructure) 
{
        static char dateAndTime[8];

        /* The tm structure stores the number of years since 1900.  We need to
         * change the offset. */
        int currentYear = timeStructure->tm_year + 1900;

        /* See SNMPv2-TC for the conversion details */
        dateAndTime[0] = (char) ((currentYear & 0xFF00) >> 8);
        dateAndTime[1] = (char)  currentYear & 0xFF;
        dateAndTime[2] = (char) timeStructure->tm_mon + 1;
        dateAndTime[3] = (char) timeStructure->tm_mday;
        dateAndTime[4] = (char) timeStructure->tm_hour;
        dateAndTime[5] = (char) timeStructure->tm_min;
        dateAndTime[6] = (char) timeStructure->tm_sec;
        dateAndTime[7] = 0;

        return dateAndTime;
}