/**************************************************************************
*
* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include "txbuf.h"
#include "bacdef.h"
#include "bacdcode.h"
#include "whohas.h"
#include "device.h"
#include "client.h"

void handler_who_has(uint8_t * service_request,
    uint16_t service_len, BACNET_ADDRESS * src)
{
    int len = 0;
    BACNET_WHO_HAS_DATA data;
    bool directed_to_me = false;
    int object_type = 0;
    uint32_t object_instance = 0;
    char *object_name = NULL;
    bool found = false;

    (void) src;
    len = whohas_decode_service_request(service_request,
        service_len, &data);
    if (len > 0) {
        if ((data.low_limit == -1) || (data.high_limit == -1))
            directed_to_me = true;
        else if ((Device_Object_Instance_Number() >=
                (uint32_t) data.low_limit)
            && (Device_Object_Instance_Number() <=
                (uint32_t) data.high_limit))
            directed_to_me = true;
        if (directed_to_me) {
            /* do we have such an object?  If so, send an I-Have.
               note: we should have only 1 of such an object */
            if (data.object_name) {
                /* valid name in my device? */
                object_name = characterstring_value(&data.object.name);
                found = Device_Valid_Object_Name(object_name,
                    &object_type, &object_instance);
                if (found)
                    Send_I_Have(Device_Object_Instance_Number(),
                        object_type, object_instance, object_name);
            } else {
                /* valid object in my device? */
                object_name =
                    Device_Valid_Object_Id(data.object.identifier.type,
                    data.object.identifier.instance);
                if (object_name)
                    Send_I_Have(Device_Object_Instance_Number(),
                        data.object.identifier.type,
                        data.object.identifier.instance, object_name);
            }
        }
    }

    return;
}