Update

server_v2/include/networkUtils.hpp

@@ -0,0 +1,49 @@
+#ifndef COMPLIB_SERVER_NETWORKUTILS_H
+#define COMPLIB_SERVER_NETWORKUTILS_H
+
+#include <unistd.h>
+#include <string>
+#include <netdb.h>
+#include "spdlog/spdlog.h"
+
+#include <sys/types.h>
+#include <ifaddrs.h>
+
+namespace networkUtils {
+  inline std::tuple<std::string, std::string> get_current_host_and_ip() {
+    struct ifaddrs *ifaddr, *ifa;
+    int family, s;
+    char host[NI_MAXHOST];
+
+    if (getifaddrs(&ifaddr) == -1) {
+      spdlog::error("getifaddrs failed");
+      freeifaddrs(ifaddr);
+      return std::tuple("", "");
+    }
+
+    for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+      if (ifa->ifa_addr == NULL)
+        continue;
+
+      family = ifa->ifa_addr->sa_family;
+
+      if (family == AF_INET) {
+        s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
+        if (s != 0) {
+          spdlog::error("getnameinfo() failed: {}", gai_strerror(s));
+          freeifaddrs(ifaddr);
+          return std::tuple("", "");
+        }
+
+        if (std::string(ifa->ifa_name) != "lo") {
+          freeifaddrs(ifaddr);
+          return std::tuple(ifa->ifa_name, std::string(host));
+        }
+      }
+    }
+
+    return std::tuple("", "");
+  }
+}
+
+#endif //COMPLIB_SERVER_NETWORKUTILS_H