pdns/zoneparser-tng.hh

   1 /*
   2  * This file is part of PowerDNS or dnsdist.
   3  * Copyright -- PowerDNS.COM B.V. and its contributors
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * In addition, for the avoidance of any doubt, permission is granted to
  10  * link this program with OpenSSL and to (re)distribute the binaries
  11  * produced as the result of such linking.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22 #ifndef PDNS_ZONEPARSER_TNG
  23 #define PDNS_ZONEPARSER_TNG
  24 #include <string>
  25 #include <cstdio>
  26 #include <stdexcept>
  27 #include <stack>
  28
  29 #include "namespaces.hh"
  30
  31 class ZoneParserTNG
  32 {
  33 public:
  34   ZoneParserTNG(const string& fname, const DNSName& zname=DNSName("."), const string& reldir="");
  35   ZoneParserTNG(const vector<string> zonedata, const DNSName& zname);
  36
  37   ~ZoneParserTNG();
  38   bool get(DNSResourceRecord& rr, std::string* comment=0);
  39   typedef runtime_error exception;
  40   typedef deque<pair<string::size_type, string::size_type> > parts_t;
  41   DNSName getZoneName();
  42   string getLineOfFile(); // for error reporting purposes
  43   pair<string,int> getLineNumAndFile(); // idem
  44 private:
  45   bool getLine();
  46   bool getTemplateLine();
  47   void stackFile(const std::string& fname);
  48   unsigned makeTTLFromZone(const std::string& str);
  49
  50   struct filestate {
  51     filestate(FILE* fp, string filename) : d_fp(fp), d_filename(filename), d_lineno(0){}
  52     FILE *d_fp;
  53     string d_filename;
  54     int d_lineno;
  55   };
  56
  57   string d_reldir;
  58   string d_line;
  59   DNSName d_prevqname;
  60   DNSName d_zonename;
  61   string d_templateline;
  62   vector<string> d_zonedata;
  63   vector<string>::iterator d_zonedataline;
  64   std::stack<filestate> d_filestates;
  65   parts_t d_templateparts;
  66   int d_defaultttl;
  67   uint32_t d_templatecounter, d_templatestop, d_templatestep;
  68   bool d_havedollarttl;
  69   bool d_fromfile;
  70 };
  71
  72 #endif