Taiko_Stuff/TaikoSwitchDataTableDecryptor
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Loosen GZip header detection threshold to prevent false negatives

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samyuu 2022-01-29 07:32:40 +01:00
parent 1abbf3044e
commit ae713dd15d
1 changed files with 5 additions and 4 deletions
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9
TaikoSwitchDataTableDecryptor/src/Utilities.cpp
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@ -364,7 +364,7 @@ namespace PeepoHappy
combinedByte |= (upperCaseHexCharToNibble(upperCaseHexChars[(byteIndex * hexDigitsPerByte) + 1]) << 0);
outBytes[byteIndex] = combinedByte;
}
return true;
}
}
@ -433,14 +433,15 @@ namespace PeepoHappy
const GZipHeader* header = reinterpret_cast<const GZipHeader*>(fileContent);
// NOTE: This is by no means comprehensive but should be enough for datatable files and (not falsely) detecting encrypted data
#if 1
#if 0
return (header->Magic[0] == 0x1F && header->Magic[1] == 0x8B) &&
(header->CompressionMethod == Z_DEFLATED) &&
(header->Flags == 0) &&
(header->Timestamp == 0) &&
(header->ExtraFlags == 0);
#else // DEBUG: Less precise check for FArc testing
return (header->Magic[0] == 0x1F && header->Magic[1] == 0x8B) && (header->CompressionMethod == Z_DEFLATED);
#else // NOTE: Less precise because becuase of some false negatives
return (header->Magic[0] == 0x1F && header->Magic[1] == 0x8B) &&
(header->CompressionMethod == Z_DEFLATED);
#endif
}