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) 2005-2009, 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 <string>
  30 #include "protostructs.h"
  31 #include "error.h"
  32 #include "endian.h"
  33 #include "record.h"
  34
  35 // forward declarations
  36 namespace Barry {
  37         class Data;
  38         class IConverter;
  39 }
  40
  41 namespace Barry {
  42
  43 template <class RecordT>
  44 const unsigned char*  ParseCommonFields(RecordT &rec,
  45                                         const void *begin,
  46                                         const void *end,
  47                                         const IConverter *ic = 0)
  48 {
  49         const unsigned char *b = (const unsigned char*) begin;
  50         const unsigned char *e = (const unsigned char*) end;
  51
  52         while( (b + COMMON_FIELD_HEADER_SIZE) < e )
  53                 b = rec.ParseField(b, e, ic);
  54         return b;
  55 }
  56
  57 // Use templates here to guarantee types are converted in the strictest manner.
  58 template <class SizeT>
  59 inline SizeT ConvertHtoB(SizeT s)
  60 {
  61         throw Error("Not implemented.");
  62 }
  63
  64 // specializations for specific sizes
  65 template <> inline uint8_t ConvertHtoB<uint8_t>(uint8_t s)    { return s; }
  66 template <> inline uint16_t ConvertHtoB<uint16_t>(uint16_t s) { return htobs(s); }
  67 template <> inline uint32_t ConvertHtoB<uint32_t>(uint32_t s) { return htobl(s); }
  68 template <> inline uint64_t ConvertHtoB<uint64_t>(uint64_t s) { return htobll(s); }
  69
  70
  71 template <class RecordT>
  72 struct FieldLink
  73 {
  74         int type;
  75         const char *name;
  76         const char *ldif;
  77         const char *objectClass;
  78         std::string RecordT::* strMember;       // FIXME - find a more general
  79         EmailAddressList RecordT::* addrMember; // way to do this...
  80         time_t RecordT::* timeMember;
  81         PostalAddress RecordT::* postMember;
  82         std::string PostalAddress::* postField;
  83         bool iconvNeeded;
  84 };
  85
  86 void BuildField1900(Data &data, size_t &size, uint8_t type, time_t t);
  87 void BuildField(Data &data, size_t &size, uint8_t type, char c);
  88 void BuildField(Data &data, size_t &size, uint8_t type, uint16_t value);
  89 void BuildField(Data &data, size_t &size, uint8_t type, const std::string &str);
  90 void BuildField(Data &data, size_t &size, uint8_t type, const void *buf, size_t bufsize);
  91 void BuildField(Data &data, size_t &size, const Barry::UnknownField &field);
  92 void BuildField(Data &data, size_t &size, uint8_t type, const Barry::Protocol::GroupLink &link);
  93 std::string ParseFieldString(const Barry::Protocol::CommonField *field);
  94 std::string ParseFieldString(const void *data, uint16_t maxlen);
  95
  96 } // namespace Barry
  97
  98 #endif
  99