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/*
* Dibbler - a portable DHCPv6
*
* authors: Tomasz Mrugalski <thomson@klub.com.pl>
* Marek Senderski <msend@o2.pl>
*
* released under GNU GPL v2 licence
*
* $Id: OptVendorClass.cpp,v 1.4 2008-10-12 16:05:06 thomson Exp $
*
*/
#include "OptVendorClass.h"
#include <iostream>
#include <sstream>
#include "Portable.h"
#include "DHCPConst.h"
#include "Logger.h"
TOptVendorClass::TOptVendorClass( char * &buf, int &n, TMsg* parent)
:TOpt(OPTION_VENDOR_CLASS, parent)
{
if (n<4) {
Log(Error) << "Unable to parse vendor-class info option." << LogEnd;
this->Vendor = 0;
this->VendorData = 0;
this->VendorDataLen = 0;
return;
}
this->Vendor = ntohl(*(int*)buf); // enterprise number
buf += 4;
n -= 4;
if (!n) {
this->VendorData = 0;
this->VendorDataLen = 0;
return;
}
if (n) {
this->VendorData = new char[n];
memmove(this->VendorData, buf, n);
} else {
this->VendorData = 0;
}
this->VendorDataLen = n;
buf += n;
n = 0;
}
int TOptVendorClass::getSize()
{
return 8+VendorDataLen; /* 8 normal header(4) + enterprise (4) */
}
/**
* stores option in a buffer
*
* @param buf option will be stored here
*
* @return pointer to the next unused byte
*/
char * TOptVendorClass::storeSelf( char* buf)
{
*(uint16_t*)buf = htons(OptType);
buf+=2;
*(uint16_t*)buf = htons( getSize()-4 );
buf+=2;
*(uint32_t*)buf = htonl(this->Vendor);
buf+=4;
memmove(buf, this->VendorData, this->VendorDataLen);
buf+=this->VendorDataLen;
return buf;
}
bool TOptVendorClass::isValid()
{
return true;
}
int TOptVendorClass::getVendor()
{
return this->Vendor;
}
char * TOptVendorClass::getVendorData()
{
return this->VendorData;
}
string TOptVendorClass::getVendorDataPlain()
{
ostringstream tmp;
tmp << "0x";
for (int i=0; i<this->VendorDataLen; i++) {
tmp << setfill('0') << setw(2) << hex << (unsigned int) this->VendorData[i];
}
return tmp.str();
}
int TOptVendorClass::getVendorDataLen()
{
return this->VendorDataLen;
}
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