Fixed several problems and warnings

bfclient/src/bf/libs/ec_pubkey_fast.c

@@ -24,8 +24,6 @@
 #include "vendor/secp256k1/src/ecmult.h"
 #include "vendor/secp256k1/src/eckey_impl.h"
 
-static int secp256k1_eckey_pubkey_parse(secp256k1_ge_t *elem, const unsigned char *pub, int size);
-
 #include "mmapf.h"
 
 #undef ASSERT
@@ -424,7 +422,7 @@ int secp256k1_scalar_add_b32(void * out, void * a, void *b) {
   return 0;
 }
 
-inline static void _priv_add(unsigned char *priv, unsigned char add, int p) {
+inline static void priv_add(unsigned char *priv, unsigned char add, int p) {
   priv[p] += add;
   if (priv[p] < add) {
     priv[--p] += 1;
@@ -439,13 +437,13 @@ inline static void _priv_add(unsigned char *priv, unsigned char add, int p) {
 }
 
 void priv_add_uint8(unsigned char *priv, unsigned char add) {
-  _priv_add(priv, add, 31);
+  priv_add(priv, add, 31);
 }
 
 void priv_add_uint32(unsigned char *priv, unsigned int add) {
   int p = 31;
   while (add) {
-    _priv_add(priv, add & 255, p--);
+    priv_add(priv, add & 255, p--);
     add >>= 8;
   }
 }

bfclient/src/bf/libs/ripemd160_256.c

@@ -153,9 +153,11 @@ static const uint32_t KR[5] = {
     0x00000000u     /* Round 5: 0 */
 };
 
-static inline void byteswap32(uint32_t *v)
-{
-    union { uint32_t w; uint8_t b[4]; } x, y;
+static inline void byteswap32(uint32_t *v) {
+  union {
+    uint32_t w;
+    uint8_t b[4];
+  } x, y;
 
   x.w = *v;
   y.b[0] = x.b[3];
@@ -168,8 +170,7 @@ static inline void byteswap32(uint32_t *v)
   x.w = y.w = 0;
 }
 
-static inline void byteswap_digest(uint32_t *p)
-{
+static inline void byteswap_digest(uint32_t *p) { // @suppress("Unused static function")
   unsigned int i;
 
   for (i = 0; i < 4; i++) {

bfclient/src/util/bytestr.cpp

@@ -59,9 +59,7 @@ void bytestr::set(const byte* fromBytes, int len) {
   }
 }
 
-bool bytestr::isEmpty(void){
-	return bytes.empty();
-}
+bool bytestr::isEmpty(void) { return (bytes.empty()); }
 
 const byte& bytestr::operator[](const int index) const {
   return (bytes[index]);

cnc/src/main/java/org/btcollider/cnc/comm/ClientWorker.java

@@ -42,7 +42,7 @@ public class ClientWorker implements Runnable {
       try {
         cmd = in.readLine();
       } catch (IOException e) {
-        log.error("Couldn't read command from communication channel");
+        log.error("Couldn't read command from communication channel", e);
         closeCommChannel();
         return;
       }
@@ -101,7 +101,13 @@ public class ClientWorker implements Runnable {
 
   private void retrieveResult() {
     try {
-      String[] result = in.readLine().split(" "); // TODO: null check for in.readLine()
+      String tmpRes = in.readLine();
+      if (tmpRes == null) {
+        log.warn("Couldn't read result from {}", clientSocket.getRemoteSocketAddress());
+        return;
+      }
+
+      String[] result = tmpRes.split(" ");
       KeyRange kr = new KeyRange(Long.parseLong(result[0], 16), Long.parseLong(result[1], 16));
 
       synchronized (keyServer) {

cnc/src/main/java/org/btcollider/cnc/comm/CommServer.java

@@ -28,10 +28,10 @@ public class CommServer {
 
     ExecutorService es = Executors.newCachedThreadPool();
 
-    while (true) {
+    while (true) { // NOSONAR
       try {
         Socket socket = serverSocket.accept();
-        log.debug("Got connection from " + socket.getInetAddress());
+        log.debug("Got connection from {}", socket.getInetAddress());
         es.execute(new ClientWorker(socket, keyServer));
 
       } catch (IOException e) {
@@ -52,7 +52,7 @@ public class CommServer {
       this.serverSocket = new ServerSocket(port);
     } catch (IOException e) {
       log.error("Couldn't allocate server socket", e);
-
+      throw new CommException(e);
     }
   }
 

cnc/src/main/java/org/btcollider/cnc/dto/KeyRange.java

@@ -29,9 +29,7 @@ public class KeyRange {
 
   public Long getTotal() {
     // asserted that <= MAX_BITS, first long contains all significant bits
-    Long total = getEnd() - getStart() + 1; // +1 bc start is included too
-
-    return total;
+    return (getEnd() - getStart() + 1); // +1 bc start is included too
   }
 
   @Override

cnc/src/main/java/org/btcollider/cnc/keysrv/impl/keytree/KeyTreeServer.java

@@ -32,7 +32,8 @@ public class KeyTreeServer implements KeyServer {
       prune(pruneKey);
 
     if (maxWorkSpan > 0) {
-      log.info("Starting KeyTree concierge");
+      log.info("Starting KeyTree concierge with timeout {}s",
+          TimeUnit.MILLISECONDS.toSeconds(maxWorkSpan));
       ScheduledExecutorService es = Executors.newSingleThreadScheduledExecutor();
       es.scheduleWithFixedDelay(new KTConcierge(root, maxWorkSpan), 0, 30, TimeUnit.SECONDS);
     } else {
@@ -51,9 +52,7 @@ public class KeyTreeServer implements KeyServer {
     keyEnd.or(keyStart); // set keyEnd to keyStart
     keyEnd.flip(0, index + 1 - depth); // reverse last bits
 
-    KeyRange kr = new KeyRange(keyStart, keyEnd);
-
-    return kr;
+    return new KeyRange(keyStart, keyEnd);
   }
 
   public void setSearched(Long from, Long to) {
@@ -81,7 +80,7 @@ public class KeyTreeServer implements KeyServer {
   }
 
   public String printDot() {
-    StringBuffer buffer = new StringBuffer();
+    StringBuilder buffer = new StringBuilder();
     buffer.append("strict graph { \n");
 
     Queue<KeyTree> frontier = new LinkedList<>();
@@ -233,12 +232,10 @@ public class KeyTreeServer implements KeyServer {
   private KeyTree generateKeyTree(int depth) {
     assert depth > 0;
 
-    KeyTree root = new KeyTree(true, null);
-    log.info("Starting recGenTree");
-    recGenKeyTree(root, depth - 1);
-    log.info("Ending recGenTree");
+    KeyTree genRoot = new KeyTree(true, null);
+    recGenKeyTree(genRoot, depth - 1);
 
-    return root;
+    return genRoot;
   }
 
   private void recGenKeyTree(KeyTree kt, int depth) {

cnc/src/test/java/org/btcollider/cnc/keysrv/KeyServerTest.java

@@ -1,11 +1,7 @@
 package org.btcollider.cnc.keysrv;
 
-import static org.junit.jupiter.api.Assertions.*;
-
 import java.util.concurrent.TimeUnit;
-
 import org.btcollider.cnc.dto.KeyRange;
-import org.btcollider.cnc.keysrv.impl.keytree.KeyTreeServer;
 import org.junit.jupiter.api.Test;
 
 class KeyServerTest {