+irc::portparser::portparser(const std::string &source, bool allow_overlapped) : in_range(0), range_begin(0), range_end(0), overlapped(allow_overlapped)
+{
+ sep = new irc::commasepstream(source);
+ overlap_set.clear();
+}
+
+irc::portparser::~portparser()
+{
+ delete sep;
+}
+
+bool irc::portparser::Overlaps(long val)
+{
+ if (!overlapped)
+ return false;
+
+ if (overlap_set.find(val) == overlap_set.end())
+ {
+ overlap_set[val] = true;
+ return false;
+ }
+ else
+ return true;
+}
+
+long irc::portparser::GetToken()
+{
+ if (in_range > 0)
+ {
+ in_range++;
+ if (in_range <= range_end)
+ {
+ if (!Overlaps(in_range))
+ {
+ return in_range;
+ }
+ else
+ {
+ while (((Overlaps(in_range)) && (in_range <= range_end)))
+ in_range++;
+
+ if (in_range <= range_end)
+ return in_range;
+ }
+ }
+ else
+ in_range = 0;
+ }
+
+ std::string x;
+ sep->GetToken(x);
+
+ if (x.empty())
+ return 0;
+
+ while (Overlaps(atoi(x.c_str())))
+ {
+ if (!sep->GetToken(x))
+ return 0;
+ }
+
+ std::string::size_type dash = x.rfind('-');
+ if (dash != std::string::npos)
+ {
+ std::string sbegin = x.substr(0, dash);
+ std::string send = x.substr(dash+1, x.length());
+ range_begin = atoi(sbegin.c_str());
+ range_end = atoi(send.c_str());
+
+ if ((range_begin > 0) && (range_end > 0) && (range_begin < 65536) && (range_end < 65536) && (range_begin < range_end))
+ {
+ in_range = range_begin;
+ return in_range;
+ }
+ else
+ {
+ /* Assume its just the one port */
+ return atoi(sbegin.c_str());
+ }
+ }
+ else
+ {
+ return atoi(x.c_str());
+ }
+}
+