diff --git a/src/Makefile.am b/src/Makefile.am
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -391,7 +391,6 @@
   seeder/dns.cpp \
   seeder/dns.h \
   seeder/strlcpy.h \
-  seeder/util.cpp \
   seeder/util.h
 
 nodist_libbitcoin_util_a_SOURCES = $(srcdir)/obj/build.h
diff --git a/src/seeder/bitcoin.cpp b/src/seeder/bitcoin.cpp
--- a/src/seeder/bitcoin.cpp
+++ b/src/seeder/bitcoin.cpp
@@ -1,6 +1,7 @@
 #include "bitcoin.h"
 
 #include "db.h"
+#include "hash.h"
 #include "netbase.h"
 #include "serialize.h"
 #include "streams.h"
@@ -18,7 +19,7 @@
 
 static const uint32_t allones(-1);
 
-class CNode {
+class CSeederNode {
     SOCKET sock;
     CDataStream vSend;
     CDataStream vRecv;
@@ -240,7 +241,7 @@
     }
 
 public:
-    CNode(const CService &ip, std::vector<CAddress> *vAddrIn)
+    CSeederNode(const CService &ip, std::vector<CAddress> *vAddrIn)
         : vSend(SER_NETWORK, 0), vRecv(SER_NETWORK, 0), nHeaderStart(-1),
           nMessageStart(-1), nVersion(0), vAddr(vAddrIn), ban(0), doneAfter(0),
           you(ip, ServiceFlags(NODE_NETWORK | NODE_BITCOIN_CASH)) {
@@ -319,7 +320,7 @@
               std::string &clientSV, int &blocks,
               std::vector<CAddress> *vAddr) {
     try {
-        CNode node(cip, vAddr);
+        CSeederNode node(cip, vAddr);
         bool ret = node.Run();
         if (!ret) {
             ban = node.GetBan();
@@ -336,15 +337,3 @@
         return false;
     }
 }
-
-/*
-int main(void) {
-  CService ip("bitcoin.sipa.be", 8333, true);
-  std::vector<CAddress> vAddr;
-  vAddr.clear();
-  int ban = 0;
-  bool ret = TestNode(ip, ban, vAddr);
-  printf("ret=%s ban=%i vAddr.size()=%i\n", ret ? "good" : "bad", ban,
-(int)vAddr.size());
-}
-*/
diff --git a/src/seeder/util.h b/src/seeder/util.h
--- a/src/seeder/util.h
+++ b/src/seeder/util.h
@@ -1,41 +1,10 @@
 #ifndef BITCOIN_SEEDER_UTIL_H
 #define BITCOIN_SEEDER_UTIL_H
 
-#include <cstdarg>
-#include <errno.h>
-#include <openssl/sha.h>
-#include <pthread.h>
+#include <ctime>
 
-#include "uint256.h"
-
-#define loop for (;;)
 #define BEGIN(a) ((char *)&(a))
 #define END(a) ((char *)&((&(a))[1]))
-#define UBEGIN(a) ((uint8_t *)&(a))
-#define UEND(a) ((uint8_t *)&((&(a))[1]))
-#define ARRAYLEN(array) (sizeof(array) / sizeof((array)[0]))
-
-#define WSAGetLastError() errno
-#define WSAEINVAL EINVAL
-#define WSAEALREADY EALREADY
-#define WSAEWOULDBLOCK EWOULDBLOCK
-#define WSAEMSGSIZE EMSGSIZE
-#define WSAEINTR EINTR
-#define WSAEINPROGRESS EINPROGRESS
-#define WSAEADDRINUSE EADDRINUSE
-#define WSAENOTSOCK EBADF
-#define INVALID_SOCKET (SOCKET)(~0)
-#define SOCKET_ERROR -1
-
-template <typename T1> inline uint256 Hash(const T1 pbegin, const T1 pend) {
-    static uint8_t pblank[1];
-    uint256 hash1;
-    SHA256((pbegin == pend ? pblank : (uint8_t *)&pbegin[0]),
-           (pend - pbegin) * sizeof(pbegin[0]), (uint8_t *)&hash1);
-    uint256 hash2;
-    SHA256((uint8_t *)&hash1, sizeof(hash1), (uint8_t *)&hash2);
-    return hash2;
-}
 
 static inline void Sleep(int nMilliSec) {
     struct timespec wa;
@@ -44,27 +13,4 @@
     nanosleep(&wa, nullptr);
 }
 
-std::string vstrprintf(const char *format, va_list ap);
-
-static inline std::string strprintf(const char *format, ...) {
-    va_list arg_ptr;
-    va_start(arg_ptr, format);
-    std::string ret = vstrprintf(format, arg_ptr);
-    va_end(arg_ptr);
-    return ret;
-}
-
-static inline bool error(std::string err, ...) {
-    return false;
-}
-
-static inline bool my_printf(std::string err, ...) {
-    return true;
-}
-
-std::vector<uint8_t> DecodeBase32(const char *p, bool *pfInvalid = nullptr);
-std::string DecodeBase32(const std::string &str);
-std::string EncodeBase32(const uint8_t *pch, size_t len);
-std::string EncodeBase32(const std::string &str);
-
 #endif
diff --git a/src/seeder/util.cpp b/src/seeder/util.cpp
deleted file mode 100644
--- a/src/seeder/util.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-#include "util.h"
-
-#include <cstdio>
-
-std::string vstrprintf(const char *format, va_list ap) {
-    char buffer[50000];
-    char *p = buffer;
-    int limit = sizeof(buffer);
-    int ret;
-    loop {
-        va_list arg_ptr;
-        va_copy(arg_ptr, ap);
-        ret = vsnprintf(p, limit, format, arg_ptr);
-        va_end(arg_ptr);
-        if (ret >= 0 && ret < limit) break;
-        if (p != buffer) delete[] p;
-        limit *= 2;
-        p = new char[limit];
-        if (p == nullptr) throw std::bad_alloc();
-    }
-    std::string str(p, p + ret);
-    if (p != buffer) delete[] p;
-    return str;
-}