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avoid overflow when reading more than 64k into buffer

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(we had only two tiles where this could have happend :)
This commit is contained in:
Hannes Janetzek 2012-12-07 00:19:43 +01:00
parent c5663df198
commit e4276ae9c4
1 changed files with 2 additions and 2 deletions
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4
src/org/oscim/database/pbmap/MapDatabase.java
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@ -857,8 +857,8 @@ public class MapDatabase implements IMapDatabase {
if (mBufferSize == mBufferPos) { if (mBufferSize == mBufferPos) {
mBufferPos = 0; mBufferPos = 0;
mBufferSize = 0; mBufferSize = 0;
} else if (mBufferPos + (size - mBufferSize) > BUFFER_SIZE) { } else if (mBufferPos + size > BUFFER_SIZE) {
Log.d(TAG, "wrap buffer" + (size - mBufferSize) + " " + mBufferPos); //Log.d(TAG, "wrap buffer" + (size - mBufferSize) + " " + mBufferPos);
// copy bytes left to read to the beginning of buffer // copy bytes left to read to the beginning of buffer
mBufferSize -= mBufferPos; mBufferSize -= mBufferPos;
System.arraycopy(mReadBuffer, mBufferPos, mReadBuffer, 0, mBufferSize); System.arraycopy(mReadBuffer, mBufferPos, mReadBuffer, 0, mBufferSize);