Easy one threaded tcp server c++ implementation

server.cpp

#include <cstdio>
#include <iostream>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>


int main() {
   int test = socket(AF_INET, SOCK_STREAM, 0);
   if (test == -1) {
       std::cout << "Failed to create socket" << std::endl;
       return test;
   }
   struct sockaddr_in server_addr = {0};
   server_addr.sin_family = AF_INET;
   server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
   server_addr.sin_port = htons(8002);
   int enable = 1;
   if (setsockopt(test, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) < 0) {
       std::cout << "Failed to set reuse option" << std::endl;
   }
   int err = bind(test, (struct sockaddr*)&server_addr,  sizeof(server_addr));
   if (err == -1) {
       std::cout << "Failed to bind on " << 8001 << std::endl;
       return err;
   }
   int backlog = 100;
   err = listen(test, backlog);
   if (err == -1) {
       std::cout << "Failed  to listen on port " << std::endl;
       return err;
   }
   std::cout << "Listen on port: " << 8001 << std::endl;
   // Обработка и взятие из очереди 1 подключения !
   struct sockaddr_in client;
   socklen_t client_len;
   client_len = sizeof(client);
   int client_sock = accept(test,(struct sockaddr*)&client, &client_len);
   if (client_sock < 0) {
       std::cout  << "Accept failed" << std::endl;
       // return ?
   }
   std::cout << "Accepted new connection: " << std::endl;
   char c_request[50] = {0};
   read(client_sock, &c_request, 50);
   std::string request(c_request);
   std::cout << "Request" << request << std::endl;
   reverse(request.begin(),request.end());
   const char* c_response  = request.c_str();
   write(client_sock, c_response, strlen(c_response));
   

   if (close(client_sock) == -1) {
       std::cout << "Close error " << std::endl;
   }
   
   if (close(test) == -1) {
       std::cout << "Close rror " << std::endl;
   }
   

   return 0;
}