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/*
* vdr-plugin-vnsi - KODI server plugin for VDR
*
* Copyright (C) 2007 Chris Tallon
* Copyright (C) 2010 Alwin Esch (Team XBMC)
* Copyright (C) 2010, 2011 Alexander Pipelka
* Copyright (C) 2015 Team KODI
*
* http://kodi.tv
*
* This Program 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, or (at your option)
* any later version.
*
* This Program 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 KODI; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "requestpacket.h"
#include "vnsicommand.h"
#include "config.h"
#include "ICommandVisitor.h"
#include <stdlib.h>
#include <string.h>
#ifndef __FreeBSD__
#include <asm/byteorder.h>
#else
#include <sys/endian.h>
#define __be64_to_cpu be64toh
#define __cpu_to_be64 htobe64
#endif
cRequestPacket::cRequestPacket(uint32_t requestID, uint32_t opcode, uint8_t* data, size_t dataLength)
: userData(data), userDataLength(dataLength), opCode(opcode), requestID(requestID)
{
packetPos = 0;
channelID = 0;
streamID = 0;
flag = 0;
}
cRequestPacket::~cRequestPacket()
{
delete[] userData;
}
bool cRequestPacket::end() const
{
return (packetPos >= userDataLength);
}
void
cRequestPacket::execute( ICommandVisitor& visitor )
{
visitor.visit( *this );
}
char* cRequestPacket::extract_String()
{
char *p = (char *)&userData[packetPos];
const char *end = (const char *)memchr(p, '\0', userDataLength - packetPos);
if (end == NULL)
/* string is not terminated - fail */
throw MalformedVNSIPacket();
int length = end - p;
packetPos += length + 1;
return p;
}
uint8_t cRequestPacket::extract_U8()
{
if ((packetPos + sizeof(uint8_t)) > userDataLength)
throw MalformedVNSIPacket();
uint8_t uc = userData[packetPos];
packetPos += sizeof(uint8_t);
return uc;
}
uint32_t cRequestPacket::extract_U32()
{
if ((packetPos + sizeof(uint32_t)) > userDataLength)
throw MalformedVNSIPacket();
uint32_t ul;
memcpy(&ul, &userData[packetPos], sizeof(uint32_t));
ul = ntohl(ul);
packetPos += sizeof(uint32_t);
return ul;
}
uint64_t cRequestPacket::extract_U64()
{
if ((packetPos + sizeof(uint64_t)) > userDataLength)
throw MalformedVNSIPacket();
uint64_t ull;
memcpy(&ull, &userData[packetPos], sizeof(uint64_t));
ull = __be64_to_cpu(ull);
packetPos += sizeof(uint64_t);
return ull;
}
int64_t cRequestPacket::extract_S64()
{
if ((packetPos + sizeof(int64_t)) > userDataLength)
throw MalformedVNSIPacket();
int64_t ll;
memcpy(&ll, &userData[packetPos], sizeof(int64_t));
ll = __be64_to_cpu(ll);
packetPos += sizeof(int64_t);
return ll;
}
double cRequestPacket::extract_Double()
{
if ((packetPos + sizeof(uint64_t)) > userDataLength)
throw MalformedVNSIPacket();
uint64_t ull;
memcpy(&ull, &userData[packetPos], sizeof(uint64_t));
ull = __be64_to_cpu(ull);
double d;
memcpy(&d, &ull, sizeof(double));
packetPos += sizeof(uint64_t);
return d;
}
int32_t cRequestPacket::extract_S32()
{
if ((packetPos + sizeof(int32_t)) > userDataLength)
throw MalformedVNSIPacket();
int32_t l;
memcpy(&l, &userData[packetPos], sizeof(int32_t));
l = ntohl(l);
packetPos += sizeof(int32_t);
return l;
}
//uint8_t* cRequestPacket::getData()
//{
// return userData;
//}
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