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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: OptStringLst.cpp,v 1.11 2007-12-25 08:11:57 thomson Exp $
*
* $Log: OptStringLst.cpp,v $
* Revision 1.11 2007-12-25 08:11:57 thomson
* Several fixes after 2nd bakeoff meeting.
*
* Revision 1.10 2007-08-26 10:26:19 thomson
* Possible segfault in REBIND processing,
* gcc 4.3.0 conformance
*
* Revision 1.9 2007-05-01 12:06:50 thomson
* Fix for possible misalignment in strings.
*
* Revision 1.8 2007-01-21 21:29:45 thomson
* Portability fixes (MIPSEL and 64bits)
*
* Revision 1.7 2005-07-17 21:09:52 thomson
* Minor improvements for 0.4.1 release.
*
* Revision 1.6 2005/05/10 00:01:46 thomson
* Minor compilation bug fixed.
*
* Revision 1.5 2005/03/15 23:02:31 thomson
* 0.4.0 release.
*
* Revision 1.4 2005/03/07 23:48:16 thomson
* Typo fix.
*
* Revision 1.3 2005/03/07 23:36:14 thomson
* Minor changes.
*
* Revision 1.2 2005/03/07 22:44:22 thomson
* DomainList is now stored and parsed approprietly (bug #104)
*
* Revision 1.1 2004/11/02 01:23:13 thomson
* Initial revision
*
* Revision 1.3 2004/04/11 18:10:56 thomson
* CRLF fixed.
*
* Revision 1.2 2004/03/29 18:53:08 thomson
* Author/Licence/cvs log/cvs version headers added.
*
*
*/
#include <stdlib.h>
#include "Portable.h"
#include "OptStringLst.h"
#include "DHCPConst.h"
#include "Logger.h"
using namespace std;
TOptStringLst::TOptStringLst(int type, List(string) strLst, TMsg* parent)
:TOpt(type, parent)
{
this->StringLst = strLst;
}
TOptStringLst::TOptStringLst(int type, char *&buf, int &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()) {
SmartPtr<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 * TOptStringLst::storeSelf(char* buf)
{
SmartPtr<string> x;
*(short*)buf = htons(OptType);
buf+=2;
*(short*)buf = htons(getSize()-4);
buf+=2;
int len = 0;
std::string::size_type dotpos;
StringLst.first();
while (x = StringLst.get() ) {
string cp(*x);
len = (int)(x->length());
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;
}
int TOptStringLst::getSize() {
int len = 0;
int tmplen = 0;
SmartPtr<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)
}
string TOptStringLst::getString() {
return *(this->StringLst.get());
}
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