Kaladaran/briar
0
0
Fork 0
mirror of https://code.briarproject.org/briar/briar.git synced 2026-02-12 18:59:06 +01:00
Code Issues Projects Releases Wiki Activity

Make bit-twiddling code more readable.

Browse Source
This commit is contained in:
akwizgran
2020-02-19 09:52:13 +00:00
parent b3d4012527
commit 61db5d1b04
1 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
bramble-core/src/main/java/org/briarproject/bramble/plugin/tcp/LanTcpPlugin.java
View File

@@ -241,9 +241,12 @@ class LanTcpPlugin extends TcpPlugin {
static boolean areAddressesInSameNetwork(byte[] localIp, byte[] remoteIp,
int prefixLength) {
if (localIp.length != remoteIp.length) return false;
// Compare the first prefixLength bits of the addresses
for (int i = 0; i < prefixLength; i++) {
int mask = 128 >> (i & 7);
if ((localIp[i >> 3] & mask) != (remoteIp[i >> 3] & mask)) {
int byteIndex = i >> 3;
int bitIndex = i & 7; // 0 to 7
int mask = 128 >> bitIndex; // Select the bit at bitIndex
if ((localIp[byteIndex] & mask) != (remoteIp[byteIndex] & mask)) {
return false; // Addresses differ at bit i
}
}