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Give the NUSDataProvider implementation a hint to limit the length of the content stream

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Maschell 2019-04-24 13:27:54 +02:00
parent a58c1c5b77
commit 1f02e9d41d
1 changed files with 20 additions and 1 deletions
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21
src/de/mas/wiiu/jnus/implementations/FSTDataProviderNUSTitle.java
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@ -119,7 +119,26 @@ public class FSTDataProviderNUSTitle implements FSTDataProvider, HasNUSTitle {
NUSDataProvider dataProvider = title.getDataProvider();
InputStream in = dataProvider.getInputStreamFromContent(c, fileOffsetBlock);
Optional<Long> readFilesize = Optional.empty();
if (c.isHashed()) {
long offsetInBlock = fileOffset - ((fileOffsetBlock / 0x10000) * 0xFC00);
if (offsetInBlock + fileSize < 0xFC00) {
readFilesize = Optional.of(0x10000L);
} else {
long curVal = 0x10000;
long missing = (fileSize - (0xFC00 - offsetInBlock));
curVal += (missing / 0xFC00) * 0x10000;
if (missing % 0xFC00 > 0) {
curVal += 0x10000;
}
readFilesize = Optional.of(curVal);
}
}
InputStream in = dataProvider.getInputStreamFromContent(c, fileOffsetBlock, readFilesize);
try {
NUSDecryption nusdecryption = new NUSDecryption(title.getTicket().get());