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Added an early exit if what was read as a header turns out pretty much certainly not to be a header.

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This commit is contained in:
Thomas Harte 2017-07-13 21:26:45 -04:00
parent 648618d280
commit fc8313430a
1 changed files with 2 additions and 0 deletions
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2
StaticAnalyser/Acorn/Tape.cpp
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@ -60,6 +60,8 @@ static std::unique_ptr<File::Chunk> GetNextChunk(const std::shared_ptr<Storage::
stored_header_crc = (uint16_t)((stored_header_crc >> 8) | (stored_header_crc << 8));
new_chunk->header_crc_matched = stored_header_crc == calculated_header_crc;
if(!new_chunk->header_crc_matched) return nullptr;
parser.reset_crc();
new_chunk->data.reserve(new_chunk->block_length);
for(int c = 0; c < new_chunk->block_length; c++) {