src/record-internal.h

   1 ///
   2 /// \file       record-internal.h
   3 ///             Support functions, types, and templates for the
   4 ///             general record parsing classes in r_*.h files.
   5 ///             This header is NOT installed for applications to
   6 ///             use, so it is safe to put library-specific things
   7 ///             in here.
   8 ///
   9
  10 /*
  11     Copyright (C) 2005-2007, Net Direct Inc. (http://www.netdirect.ca/)
  12
  13     This program is free software; you can redistribute it and/or modify
  14     it under the terms of the GNU General Public License as published by
  15     the Free Software Foundation; either version 2 of the License, or
  16     (at your option) any later version.
  17
  18     This program is distributed in the hope that it will be useful,
  19     but WITHOUT ANY WARRANTY; without even the implied warranty of
  20     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  21
  22     See the GNU General Public License in the COPYING file at the
  23     root directory of this project for more details.
  24 */
  25
  26 #ifndef __BARRY_RECORD_INTERNAL_H__
  27 #define __BARRY_RECORD_INTERNAL_H__
  28
  29 #include "protostructs.h"
  30 #include "error.h"
  31 #include "endian.h"
  32
  33 // forward declarations
  34 namespace Barry { class Data; }
  35
  36 namespace Barry {
  37
  38 template <class RecordT>
  39 const unsigned char*  ParseCommonFields(RecordT &rec, const void *begin, const void *end)
  40 {
  41         const unsigned char *b = (const unsigned char*) begin;
  42         const unsigned char *e = (const unsigned char*) end;
  43
  44         while( (b + COMMON_FIELD_HEADER_SIZE) < e )
  45                 b = rec.ParseField(b, e);
  46         return b;
  47 }
  48
  49 // Use templates here to guarantee types are converted in the strictest manner.
  50 template <class SizeT>
  51 inline SizeT ConvertHtoB(SizeT s)
  52 {
  53         throw Error("Not implemented.");
  54 }
  55
  56 // specializations for specific sizes
  57 template <> inline uint8_t ConvertHtoB<uint8_t>(uint8_t s)    { return s; }
  58 template <> inline uint16_t ConvertHtoB<uint16_t>(uint16_t s) { return htobs(s); }
  59 template <> inline uint32_t ConvertHtoB<uint32_t>(uint32_t s) { return htobl(s); }
  60 template <> inline uint64_t ConvertHtoB<uint64_t>(uint64_t s) { return htobll(s); }
  61
  62
  63 template <class RecordT>
  64 struct FieldLink
  65 {
  66         int type;
  67         char *name;
  68         char *ldif;
  69         char *objectClass;
  70         std::string RecordT::* strMember;       // FIXME - find a more general
  71         Message::Address RecordT::* addrMember; // way to do this...
  72         time_t RecordT::* timeMember;
  73 };
  74
  75 void BuildField1900(Data &data, size_t &size, uint8_t type, time_t t);
  76 void BuildField(Data &data, size_t &size, uint8_t type, char c);
  77 void BuildField(Data &data, size_t &size, uint8_t type, const std::string &str);
  78 void BuildField(Data &data, size_t &size, uint8_t type, const Barry::Protocol::GroupLink &link);
  79
  80 } // namespace Barry
  81
  82 #endif
  83