rpc: use ip address string representation for peer::host field

src/rpc/core_rpc_server_commands_defs.h

@@ -29,6 +29,9 @@
 // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
 #pragma once
+
+#include "string_tools.h"
+
 #include "cryptonote_protocol/cryptonote_protocol_defs.h"
 #include "cryptonote_basic/cryptonote_basic.h"
 #include "cryptonote_basic/difficulty.h"
@@ -1198,7 +1201,7 @@ namespace cryptonote
       : id(id), host(host), ip(0), port(0), rpc_port(rpc_port), last_seen(last_seen), pruning_seed(pruning_seed)
     {}
     peer(uint64_t id, uint32_t ip, uint16_t port, uint64_t last_seen, uint32_t pruning_seed, uint16_t rpc_port)
-      : id(id), host(std::to_string(ip)), ip(ip), port(port), rpc_port(rpc_port), last_seen(last_seen), pruning_seed(pruning_seed)
+      : id(id), host(epee::string_tools::get_ip_string_from_int32(ip)), ip(ip), port(port), rpc_port(rpc_port), last_seen(last_seen), pruning_seed(pruning_seed)
     {}
 
     BEGIN_KV_SERIALIZE_MAP()