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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
*
*/
#include <string.h>
#include "Portable.h"
#include "OptDomainLst.h"
#include "DHCPConst.h"
#include "Logger.h"
using namespace std;
TOptDomainLst::TOptDomainLst(int type, List(std::string) strLst, TMsg* parent)
:TOpt(type, parent) {
StringLst = strLst;
}
TOptDomainLst::TOptDomainLst(int type, const std::string& domain, TMsg* parent)
:TOpt(type, parent) {
StringLst.append(new string(domain) );
}
const std::string& TOptDomainLst::getDomain() {
StringLst.first();
return *StringLst.get();
}
TOptDomainLst::TOptDomainLst(int type, const char *buf, unsigned short bufsize, TMsg* parent)
:TOpt(type, parent) {
int len;
string domain = "";
char* str=new char[bufsize+1];
str[bufsize]=0;
while (bufsize) {
len = (char)*buf;
if (len>bufsize) {
Log(Debug) << "Option parsing failed. String length is specified as " << len
<< ", but remaining buffer is only " << bufsize << " bytes long." << LogEnd;
StringLst.clear();
return;
}
if (len==0) {
// end of domain
if (domain.length()) {
SPtr<string> x = new string(domain);
this->StringLst.append(x);
}
bufsize -= len+1;
buf += len+1;
domain = "";
continue;
}
memcpy(str,buf+1,len);
str[len]=0;
if (domain.length())
domain += string(".");
domain = domain + string(str);
bufsize -= len+1;
buf += len+1;
}
delete [] str;
}
char * TOptDomainLst::storeSelf(char* buf)
{
SPtr<string> x;
buf = writeUint16(buf, OptType);
buf = writeUint16(buf, getSize()-4);
std::string::size_type dotpos;
StringLst.first();
while (x = StringLst.get() ) {
string cp(*x);
dotpos = string::npos;
while (cp.find(".")!=string::npos) {
if (*cp.c_str()=='.')
break;
dotpos = cp.find(".");
if (dotpos!=string::npos) {
*buf = dotpos;
buf++;
memcpy(buf, cp.c_str(), dotpos);
buf+=dotpos;
cp = cp.substr(dotpos+1);
}
}
*buf = cp.length(); // length of the string
buf++;
memcpy(buf, cp.c_str(), cp.length());
buf+= cp.length();
*buf=0;
buf++;
}
return buf;
}
size_t TOptDomainLst::getSize() {
int len = 0;
int tmplen = 0;
SPtr<string> x;
StringLst.first();
while ( x = StringLst.get() ) {
const char * c = x->c_str();
tmplen = x->length();
if (c[tmplen]=='.')
len++;
len += x->length()+2;
}
return len+4; // 5=4(std.option header) + 1 (final 0)
}
#if 0
string TOptDomainLst::getString() {
return *(this->StringLst.get());
}
#endif
std::string TOptDomainLst::getPlain() {
string concat;
StringLst.first();
SPtr<string> s;
while (s=StringLst.get()) {
concat.append(*s);
concat.append(" ");
}
return concat;
}
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