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Attempt to patch ARM9 secure area if all attempts to match the filesize fail.

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Admiral H. Curtiss
2014-05-30 19:52:50 +02:00
parent 8cd1e3c8e1
commit 49b55ff173
1 changed files with 14 additions and 0 deletions
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14
Program.cs
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@@ -122,6 +122,20 @@ namespace WfcPatcher {
newCompressedSize = (uint)data.Length;
}
if ( newCompressedSize != len ) {
// new ARM is (still) different, attempt to find the metadata in the ARM9 secure area and replace that
byte[] newCmpSizeBytes = BitConverter.GetBytes( newCompressedSize );
for ( int i = 0; i < 0x4000; i += 4 ) {
uint maybeSize = BitConverter.ToUInt32( data, i );
if ( maybeSize == len + 0x02000000 ) {
data[i + 0] = newCmpSizeBytes[0];
data[i + 1] = newCmpSizeBytes[1];
data[i + 2] = newCmpSizeBytes[2];
data[i + 3] = (byte)( newCmpSizeBytes[3] + 0x02 );
break;
}
}
}
#if DEBUG
uint newDecompressedSize = (uint)decData.Length;
uint newAdditionalCompressedSize = newDecompressedSize - newCompressedSize;