#if HAVE_CRT
 #define _CRTDBG_MAP_ALLOC 
 #include <stdlib.h> 
 #include <crtdbg.h>
 #endif //HAVE_CRT
 /*

 * Copyright (C) 2020, University of the Basque Country (UPV/EHU)

 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://doubango.org>
 *
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO 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 3 of the License, or
 * (at your option) any later version.
 *
 * DOUBANGO 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 DOUBANGO.
 *
 */
 
 /**@file tnet_dhcp_option_sip.c
  * @brief  Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for 
  *			Session Initiation Protocol (SIP) Servers as per RFC 3361.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #include "tnet_dhcp_option_sip.h"
 
 #include "dns/tnet_dns_rr.h"
 
 #include "../tnet_types.h"
 #include "../tnet_endianness.h"
 
 #include "tsk_memory.h"
 #include "tsk_string.h"
 
 tnet_dhcp_option_sip_t* tnet_dhcp_option_sip_create(const void* payload, tsk_size_t payload_size)
 {
 	return tsk_object_new(tnet_dhcp_option_sip_def_t, payload, payload_size);
 }
 
 //
 //	[[DHCP SIP4]] object definition
 //
 static tsk_object_t* tnet_dhcp_option_sip_ctor(tsk_object_t * self, va_list * app)
 {
 	tnet_dhcp_option_sip_t *option = self;
 	if(option){
 		const void* payload = va_arg(*app, const void*);
 		tsk_size_t payload_size = va_arg(*app, tsk_size_t);
 
 		const uint8_t* payloadPtr = (const uint8_t*)payload;
 		const uint8_t* payloadEnd = (payloadPtr + payload_size);
 		
 		/* init base */
 		tnet_dhcp_option_init(TNET_DHCP_OPTION(option), dhcp_code_SIP_Servers_DHCP_Option);
 
 		option->servers = tsk_list_create();
 
 		/* Set values as per RFC 3361. */
 		if(*payloadPtr == 0){ /* enc=0 */
 			/*
 			+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
 			|120|27 | 0 | 7 |'e'|'x'|'a'|'m'|'p'|'l'|'e'| 3 |'c'|'o'|'m'| 0 |
 			+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
 			+---+---+---+---+---+---+---+---+---+---+---+---+---+ | 7
 			|'e'|'x'|'a'|'m'|'p'|'l'|'e'| 3 |'n'|'e'|'t'| 0 | +---+---+---
 			+---+---+---+---+---+---+---+---+---+---+
 			*/
 			tsk_size_t offset = 1;
 			char* server = 0;
 			payloadPtr++;
 			while((payloadPtr < payloadEnd) && !tnet_dns_rr_qname_deserialize(payload, &server, &offset)){
 				tsk_string_t* string = tsk_string_create(server);
 				tsk_list_push_back_data(option->servers, (void*)&string);
 				TSK_FREE(server);
 				payloadPtr += offset;
 			}
 		}
 		else{
 			/*
 			Code   Len   enc   Address 1               Address 2
 			+-----+-----+-----+-----+-----+-----+-----+-----+--
 			| 120 |  n  |  1  | a1  | a2  | a3  | a4  | a1  |  ...
 			+-----+-----+-----+-----+-----+-----+-----+-----+--
 			*/
 			uint32_t address;
 			tsk_string_t* addrstring;
 			char* ip4 = 0;
 
 			while(payloadPtr < payloadEnd){
 				++payloadPtr;
 				address = tnet_htonl_2(payloadPtr);
 				
 				tsk_sprintf(&ip4, "%u.%u.%u.%u", (address>>24)&0xFF, (address>>16)&0xFF, (address>>8)&0xFF, (address>>0)&0xFF);
 				
 				addrstring = tsk_string_create(ip4);
 				tsk_list_push_back_data(option->servers, (void*)&addrstring);
 
 				TSK_FREE(ip4);
 
 				payloadPtr+= 4;
 			}
 		}
 	}
 	return self;
 }
 
 static tsk_object_t* tnet_dhcp_option_sip_dtor(tsk_object_t * self) 
 { 
 	tnet_dhcp_option_sip_t *option = self;
 	if(option){
 		/* deinit base */
 		tnet_dhcp_option_deinit(TNET_DHCP_OPTION(option));
 
 		TSK_OBJECT_SAFE_FREE(option->servers);
 	}
 	return self;
 }
 
 static const tsk_object_def_t tnet_dhcp_option_sip_def_s =
 {
 	sizeof(tnet_dhcp_option_sip_t),
 	tnet_dhcp_option_sip_ctor,
 	tnet_dhcp_option_sip_dtor,
 	tsk_null,
 };
 const tsk_object_def_t *tnet_dhcp_option_sip_def_t = &tnet_dhcp_option_sip_def_s;