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38 lines
857 B
C++
38 lines
857 B
C++
/*
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* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>
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* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*/
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#include "Chunk.h"
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#include "Utils.h"
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int32 Chunk::FindSubChunkOffset(std::string name)
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{
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// Reverse the name
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name = std::string(name.rbegin(), name.rend());
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if (name.size() != 4)
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return -1;
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FILE* stream = GetStream();
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uint32 matched = 0;
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while (uint32(ftell(stream)) < Utils::Size(stream))
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{
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char b = 0;
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if (fread(&b, sizeof(char), 1, stream) != 1 || b != name[matched])
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matched = 0;
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else
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++matched;
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if (matched == 4)
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return ftell(stream) - 4;
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}
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return -1;
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}
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FILE* Chunk::GetStream()
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{
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fseek(Stream, Offset, SEEK_SET);
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return Stream;
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}
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