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DroidFish: Fixed potential integer overflow problem in CTG book code.

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Peter Osterlund
2014-10-04 16:14:27 +00:00
parent 31ce064a10
commit a4b5950a8a
1 changed files with 2 additions and 2 deletions
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4
DroidFish/src/org/petero/droidfish/book/CtgBook.java
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@@ -127,7 +127,7 @@ class CtgBook implements IOpeningBook {
}
/** Read len bytes from offs in file f. */
private final static byte[] readBytes(RandomAccessFile f, int offs, int len) throws IOException {
private final static byte[] readBytes(RandomAccessFile f, long offs, int len) throws IOException {
byte[] ret = new byte[len];
f.seek(offs);
f.readFully(ret);
@@ -350,7 +350,7 @@ class CtgBook implements IOpeningBook {
}
private final PositionData findInPage(int page, byte[] encodedPos) throws IOException {
byte[] pageBuf = readBytes(f, (page+1)*4096, 4096);
byte[] pageBuf = readBytes(f, (page+1)*4096L, 4096);
try {
int nPos = extractInt(pageBuf, 0, 2);
int nBytes = extractInt(pageBuf, 2, 2);