improve readablility

Author: BonnyAD9

process/icmp.cpp

@@ -67,7 +67,7 @@ int ICMPPlugin::post_create(Flow &rec, const Packet &pkt)
 {
    if (pkt.ip_proto == IPPROTO_ICMP ||
        pkt.ip_proto == IPPROTO_ICMPV6) {
-      if (pkt.payload_len < 2)
+      if (pkt.payload_len < sizeof(RecordExtICMP::type_code))
          return 0;
 
       auto ext = new RecordExtICMP();

process/icmp.hpp

@@ -120,8 +120,8 @@ struct RecordExtICMP : public RecordExt {
       auto *type_code = reinterpret_cast<const uint8_t *>(&this->type_code);
 
       std::ostringstream out;
-      out << "type=\"" << (int)type_code[0] << '"'
-         << ",code=\"" << (int)type_code[1] << '"';
+      out << "type=\"" << static_cast<int>(type_code[0]) << '"'
+         << ",code=\"" << static_cast<int>(type_code[1]) << '"';
 
       return out.str();
    }