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Removed unnecessry buffering

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dev
2015-04-04 00:05:29 +00:00
parent 820b99e3d3
commit ddc3ef8db3
1 changed files with 8 additions and 9 deletions
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13
router/java/src/net/i2p/data/i2np/I2NPMessageImpl.java
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@@ -199,11 +199,6 @@ public abstract class I2NPMessageImpl extends DataStructureImpl implements I2NPM
cur += DataHelper.DATE_LENGTH;
int size = (int)DataHelper.fromLong(data, cur, 2);
cur += 2;
//Hash h = new Hash();
byte hdata[] = new byte[CHECKSUM_LENGTH];
System.arraycopy(data, cur, hdata, 0, CHECKSUM_LENGTH);
cur += CHECKSUM_LENGTH;
//h.setData(hdata);
if (cur + size > data.length || headerSize + size > maxLen)
throw new I2NPMessageException("Payload is too short ["
@@ -215,8 +210,12 @@ public abstract class I2NPMessageImpl extends DataStructureImpl implements I2NPM
int sz = Math.min(size, maxLen - headerSize);
byte[] calc = SimpleByteCache.acquire(Hash.HASH_LENGTH);
_context.sha().calculateHash(data, cur, sz, calc, 0);
boolean eq = DataHelper.eq(hdata, 0, calc, 0, CHECKSUM_LENGTH);
// Compare the checksum in data to the checksum of the data after the checksum
_context.sha().calculateHash(data, cur + CHECKSUM_LENGTH, sz, calc, 0);
boolean eq = DataHelper.eq(data, cur, calc, 0, CHECKSUM_LENGTH);
cur += CHECKSUM_LENGTH;
SimpleByteCache.release(calc);
if (!eq)
throw new I2NPMessageException("Bad checksum on " + size + " byte I2NP " + getClass().getSimpleName());