Make GetBindAddress() callable from outside net.cpp

The function logic is moved-only from net.cpp to netbase.cpp
and redeclared (as non-static) in netbase.h

src/net.cpp

@@ -360,20 +360,6 @@ bool CConnman::CheckIncomingNonce(uint64_t nonce)
     return true;
 }
 
-/** Get the bind address for a socket as CService. */
-static CService GetBindAddress(const Sock& sock)
-{
-    CService addr_bind;
-    struct sockaddr_storage sockaddr_bind;
-    socklen_t sockaddr_bind_len = sizeof(sockaddr_bind);
-    if (!sock.GetSockName((struct sockaddr*)&sockaddr_bind, &sockaddr_bind_len)) {
-        addr_bind.SetSockAddr((const struct sockaddr*)&sockaddr_bind, sockaddr_bind_len);
-    } else {
-        LogWarning("getsockname failed\n");
-    }
-    return addr_bind;
-}
-
 CNode* CConnman::ConnectNode(CAddress addrConnect,
                              const char* pszDest,
                              bool fCountFailure,

src/netbase.cpp

@@ -947,3 +947,16 @@ CService MaybeFlipIPv6toCJDNS(const CService& service)
     }
     return ret;
 }
+
+CService GetBindAddress(const Sock& sock)
+{
+    CService addr_bind;
+    struct sockaddr_storage sockaddr_bind;
+    socklen_t sockaddr_bind_len = sizeof(sockaddr_bind);
+    if (!sock.GetSockName((struct sockaddr*)&sockaddr_bind, &sockaddr_bind_len)) {
+        addr_bind.SetSockAddr((const struct sockaddr*)&sockaddr_bind, sockaddr_bind_len);
+    } else {
+        LogWarning("getsockname failed\n");
+    }
+    return addr_bind;
+}

src/netbase.h

@@ -362,4 +362,7 @@ bool IsBadPort(uint16_t port);
  */
 CService MaybeFlipIPv6toCJDNS(const CService& service);
 
+/** Get the bind address for a socket as CService. */
+CService GetBindAddress(const Sock& sock);
+
 #endif // BITCOIN_NETBASE_H