diff --git a/Makefile b/Makefile
index 066f47c..c5ff5e4 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ NAME		 =	webserv
 CXX			 =	c++
 
 CXXFLAGS	 =	-Wall -Wextra #-Werror
-CXXFLAGS	+=	-I$(HEADERS_D)
+CXXFLAGS	+=	$(HEADERS_I)
 CXXFLAGS	+=	-std=c++98
 CXXFLAGS	+=	-g
 CXXFLAGS	+=	-MMD -MP #header dependencie
@@ -12,19 +12,20 @@ CXXFLAGS	+=	-MMD -MP #header dependencie
 #SHELL		 =	/bin/zsh
 VPATH		 =	$(SRCS_D)
 
-# HEADERS		 =	$(HEADERS_D:%=-I%)
-HEADERS_D = ./srcs
-HEADERS =	Webserv.hpp \
-			ConfigParser.hpp \
-			ServerConfig.hpp \
-			LocationConfig.hpp \
-			Client.hpp \
-			MethodType.hpp \
-			utils.hpp \
+HEADERS_I	 =	$(HEADERS_D:%=-I%)
+HEADERS_D	 =	srcs \
+				headers
+HEADERS		 =	Webserv.hpp \
+				ConfigParser.hpp \
+				ServerConfig.hpp \
+				LocationConfig.hpp \
+				Client.hpp \
+				MethodType.hpp \
+				utils.hpp \
 
-SRCS_D		 =	srcs srcs/webserv
+SRCS_D		 =	srcs \
+				srcs/webserv
 SRCS		 =	main.cpp \
-				ft_itoa.cpp \
 				base.cpp init.cpp close.cpp epoll_update.cpp signal.cpp \
 				accept.cpp request.cpp response.cpp \
 				run_loop.cpp \
diff --git a/srcs/Client.hpp b/srcs/Client.hpp
index 2536012..ede81f3 100644
--- a/srcs/Client.hpp
+++ b/srcs/Client.hpp
@@ -6,19 +6,19 @@
 # include <string>
 # include <map>
 
-struct Client
+class Client
 {
-	// public:
+	public:
 		// Client(Placeholder);
 		// Client();
 		// Client(Client const &src);
 		// ~Client();
 		// Client &operator=(Client const &rhs);
+		// Client &operator=(int);
 
 		int	fd;
 		std::string	raw_request;
 		std::map<std::string, std::string>	request;
-		// std::map<std::string, std::string>	response;
 		std::string		response;
 		unsigned int	status;
 
@@ -26,4 +26,8 @@ struct Client
 
 };
 
-#endif
\ No newline at end of file
+bool	operator==(const Client& lhs, const Client& rhs);
+bool	operator==(const Client& lhs, int fd);
+bool	operator==(int fd, const Client& rhs);
+
+#endif
diff --git a/srcs/ConfigParser.cpp b/srcs/ConfigParser.cpp
index 46df807..30f3014 100644
--- a/srcs/ConfigParser.cpp
+++ b/srcs/ConfigParser.cpp
@@ -6,7 +6,7 @@
 /*   By: lperrey <lperrey@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/07/13 22:11:17 by me                #+#    #+#             */
-/*   Updated: 2022/07/30 23:07:42 by lperrey          ###   ########.fr       */
+/*   Updated: 2022/07/31 13:18:14 by simplonco        ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -216,7 +216,7 @@ void	ConfigParser::_set_server_values(ServerConfig *server, \
 
 	value = _pre_set_val_check(key, value);
 
-	std::vector<std::string> tmp_val = split(value, ' ');
+	std::vector<std::string> tmp_val = ::split(value, ' ');
 	size_t	size = tmp_val.size();
 
 	if (size < 1)
@@ -239,7 +239,7 @@ void	ConfigParser::_set_server_values(ServerConfig *server, \
 		}
 		else
 		{
-			std::vector<std::string> tmp2 = split(tmp_val[0], ':');
+			std::vector<std::string> tmp2 = ::split(tmp_val[0], ':');
 			if (!(isNumeric(tmp2[1])))
 				throw std::invalid_argument("value not a number");
 
diff --git a/srcs/Webserv.hpp b/srcs/Webserv.hpp
index 6ba2970..b5a7b8b 100644
--- a/srcs/Webserv.hpp
+++ b/srcs/Webserv.hpp
@@ -2,26 +2,28 @@
 #ifndef WEBSERV_HPP
 # define WEBSERV_HPP
 
-# include <iostream> // cout, cin
-# include <string>
 # include <map>
 # include <vector>
-# include <cerrno> // errno
-# include <cstdio> // perror
-# include <exception>
-# include <stdexcept>
-# include <unistd.h> // close
-# include <cstring> // memset
-# include <fstream>
-# include <sstream>
-
-# include <sys/socket.h> // socket, accept, listen, send, recv, bind, connect, setsockopt, getsockname
-# include <netinet/in.h> // sockaddr_in
-// # include <netinet/ip.h> // usefull for what ?
-# include <arpa/inet.h> // htonl, htons, ntohl, ntohs, inet_addr
-
-# include <sys/epoll.h> // epoll
-# include <fcntl.h> // fcntl
+# include <exception>		// exception, what
+# include <stdexcept>		// runtime_error, invalid_argument
+# include <sys/epoll.h>		// epoll
+# include <fcntl.h>			// fcntl
+# include <sys/wait.h>		// waitpid
+# include <csignal>			// signal
+# include <fstream>			// ifstream
+# include <sstream>			// stringstream
+# include <cerrno>			// errno
+# include <unistd.h>		// close, access
+# include <iostream>		// cout, cin
+# include <cstring>			// memset
+# include <sys/socket.h>	// socket, accept, listen, send, recv, bind, connect, setsockopt, getsockname
+# include <arpa/inet.h>		// htonl, htons, ntohl, ntohs, inet_addr
+# include <netinet/in.h>	// sockaddr_in
+// # include <netinet/ip.h> // usefull for what ? -> 'man (7) ip' says it's a superset of 'netinet/in.h'
+# include <algorithm>		// find
+# include <string>			// string
+# include <cstdio>			// perror
+# include <cstdlib>			// atoi (athough it's already cover by <string>)
 
 # include "Client.hpp"
 # include "ServerConfig.hpp"
@@ -33,17 +35,6 @@
 # include "utils.hpp"
 // TODO: A virer
 
-# include <csignal> // signal
-# include <unistd.h>
-# include <string.h>
-# include <stdio.h>
-# include <stdlib.h>
-# include <cstdlib> // atoi, itoa
-# include <fstream> // ifstream
-char	*ft_itoa(int n);
-# include <unistd.h> // access
-# include <algorithm> // find
-
 extern bool	g_run;
 extern int	g_last_signal;
 void	signal_handler(int signum);
diff --git a/srcs/ft_itoa.cpp b/srcs/ft_itoa.cpp
deleted file mode 100644
index 1e996a9..0000000
--- a/srcs/ft_itoa.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-
-#include <string.h>
-
-static int	eval_is_negative(int *n)
-{
-	if (*n < 0)
-	{
-		*n = *n * -1;
-		return (1);
-	}
-	return (0);
-}
-
-static int	eval_digit_nbr(int n)
-{
-	int		digit_nbr;
-
-	if (n == 0)
-		return (1);
-	digit_nbr = 0;
-	while (n != 0)
-	{
-		digit_nbr++;
-		n = n / 10;
-	}
-	return (digit_nbr);
-}
-
-char	*ft_itoa(int n)
-{
-	int		i;
-	char	*str;
-	int		is_negative;
-
-	if (n == -2147483648)
-		return (strdup("-2147483648"));
-	is_negative = eval_is_negative(&n);
-	i = eval_digit_nbr(n) + is_negative;
-	str = new char[i+1];
-	if (is_negative)
-		str[0] = '-';
-	str[i] = '\0';
-	while (i > 0 + is_negative)
-	{
-		i--;
-		str[i] = (n % 10) + '0';
-		n = n / 10;
-	}
-	return (str);
-}
diff --git a/srcs/utils.cpp b/srcs/utils.cpp
index 6cf4df0..112cedb 100644
--- a/srcs/utils.cpp
+++ b/srcs/utils.cpp
@@ -1,8 +1,5 @@
 
-
-#include "Webserv.hpp"
-
-
+#include "utils.hpp"
 
 std::vector<std::string> split(std::string input, char delimiter)
 {
@@ -34,10 +31,17 @@ bool	isNumeric_btw(int low, int high, std::string str)
 		if (std::isdigit(str[i]) == false)
 			return false;
 	}
-	int n = atoi(str.c_str());
+	int n = std::atoi(str.c_str());
 	if (n < low || n > high)
 		return false;
 	return true;
 }
 
+char*	itoa(int n)
+{
+	std::stringstream	strs;
 
+	strs << n;
+	// casts : https://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-const-cast-and-reinterpret-cast-be-used
+	return ( const_cast<char*>( strs.str().c_str() ) );
+}
diff --git a/srcs/utils.hpp b/srcs/utils.hpp
index 83ebee8..1730236 100644
--- a/srcs/utils.hpp
+++ b/srcs/utils.hpp
@@ -1,12 +1,14 @@
 
-
-
 #ifndef UTILS_HPP
 # define UTILS_HPP
 
+# include <vector>
+# include <string>
+# include <sstream>
 
 std::vector<std::string> split(std::string input, char delimiter);
-bool	isNumeric(std::string str);
-bool	isNumeric_btw(int low, int high, std::string str);
+bool	                isNumeric(std::string str);
+bool	                isNumeric_btw(int low, int high, std::string str);
+char*					itoa(int n);
 
 #endif
diff --git a/srcs/webserv/accept.cpp b/srcs/webserv/accept.cpp
index cd67904..f6db17b 100644
--- a/srcs/webserv/accept.cpp
+++ b/srcs/webserv/accept.cpp
@@ -22,5 +22,5 @@ void	Webserv::_accept_connection(int fd)
 	_clients.push_back(Client());
 	_clients.back().fd = accepted_fd;
 
-	_epoll_update(accepted_fd, EPOLLIN, EPOLL_CTL_ADD, &_clients.back());
+	_epoll_update(accepted_fd, EPOLLIN, EPOLL_CTL_ADD);
 }
diff --git a/srcs/webserv/init.cpp b/srcs/webserv/init.cpp
index b773964..4c5956e 100644
--- a/srcs/webserv/init.cpp
+++ b/srcs/webserv/init.cpp
@@ -24,6 +24,18 @@ void	Webserv::init_virtual_servers(std::vector<ServerConfig>* servers)
 			std::perror("err socket()");
 			throw std::runtime_error("Socket init");
 		}
+		// HUGO ADD
+		//
+		// allow socket descriptor to be reuseable
+		// I just copied it from https://www.ibm.com/docs/en/i/7.2?topic=designs-example-nonblocking-io-select
+		int	on = 1;
+		if (setsockopt(ret, SOL_SOCKET,  SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
+		{
+			::perror("err setsockopt()");
+			throw std::runtime_error("Socket init");
+		}
+		//
+		// HUGO ADD END
 		_listen_sockets.push_back(ret);
 
 		_bind(_listen_sockets.back(), std::atoi(it->port.data()), it->host);
diff --git a/srcs/webserv/request.cpp b/srcs/webserv/request.cpp
index 17c372b..de761f5 100644
--- a/srcs/webserv/request.cpp
+++ b/srcs/webserv/request.cpp
@@ -15,8 +15,8 @@ void	Webserv::_read_request(Client *client)
 	char	buf[BUFSIZE+1];
 	ssize_t	ret;
 
-	std::cerr << "recv()\n";
 	ret = ::recv(client->fd, buf, BUFSIZE, 0);
+	std::cerr << "recv() on fd(" << client->fd << ") returned = " << ret << "\n" ;
 	if (ret == -1)
 	{
 		std::perror("err recv()");
@@ -25,6 +25,11 @@ void	Webserv::_read_request(Client *client)
 		_close_client(client->fd);
 		return ;
 	}
+	if (ret == 0) // Not sure what to do in case of 0. Just close ?
+	{
+		_close_client(client->fd);
+		return ;
+	}
 	/*
 	if (ret == BUFSIZE)
 		// send error like "request too long" to client
@@ -33,5 +38,5 @@ void	Webserv::_read_request(Client *client)
 	buf[ret] = '\0';
 	client->raw_request.append(buf);
 
-	_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD, client);
+	_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD);
 }
diff --git a/srcs/webserv/response.cpp b/srcs/webserv/response.cpp
index ce785ed..800903d 100644
--- a/srcs/webserv/response.cpp
+++ b/srcs/webserv/response.cpp
@@ -27,15 +27,14 @@ void	Webserv::_send_response(Client *client)
 		return ;
 	}
 
-	_close_client(client->fd);
-	/* if (client->raw_request.find("Connection: keep-alive") == std::string::npos)
+	if (client->raw_request.find("Connection: close") != std::string::npos)
 		_close_client(client->fd);
 	else
 	{
-		_epoll_update(client->fd, EPOLLIN, EPOLL_CTL_MOD, client);
+		_epoll_update(client->fd, EPOLLIN, EPOLL_CTL_MOD);
 		client->raw_request.clear();
 		client->response.clear();
-	} */
+	}
 }
 
 void	Webserv::_construct_response(Client *client)
@@ -43,13 +42,17 @@ void	Webserv::_construct_response(Client *client)
 	client->status = 200;
 	client->response.append("Server: Webserv/0.1\r\n");
 
-	client->response.append("Connection: close\r\n");
+	if (client->raw_request.find("Connection: close") != std::string::npos)
+		client->response.append("Connection: close\r\n");
+	else
+		client->response.append("Connection: keep-alive\r\n");
 
 	_get_ressource(client);
 
 	_insert_status_line(client);
 }
 
+#define	E400 "\r\n<!DOCTYPE html><html><head><title>400 Bad Request</title></head><body><h1 style=\"text-align:center\">400 Bad Request</h1><hr><p style=\"text-align:center\">Le Webserv/0.1</p></body></html>"
 #define	E404 "\r\n<!DOCTYPE html><html><head><title>404 Not Found</title></head><body><h1 style=\"text-align:center\">404 Not Found</h1><hr><p style=\"text-align:center\">Le Webserv/0.1</p></body></html>"
 #define	E500 "\r\n<!DOCTYPE html><html><head><title>500 Internal Server Error</title></head><body><h1 style=\"text-align:center\">500 Internal Server Error</h1><hr><p style=\"text-align:center\">Le Webserv/0.1</p></body></html>"
 void	Webserv::_insert_status_line(Client *client)
@@ -63,6 +66,10 @@ void	Webserv::_insert_status_line(Client *client)
 		case (200):
 			status_line.append("200 OK");
 			break;
+		case (400):
+			status_line.append("400 Not Found");
+			client->response.append(E400);
+			break;
 		case (404):
 			status_line.append("404 Not Found");
 			client->response.append(E404);
@@ -88,12 +95,21 @@ void	Webserv::_get_ressource(Client *client)
 
 	// Mini parsing à l'arrache du PATH
 	std::string	path;
-	path = client->raw_request.substr(0, client->raw_request.find("\r\n"));
-	path = path.substr(0, path.rfind(" "));
-	path = path.substr(path.find("/"));
-	if (path == "/")
-		path.append(INDEX);
-	path.insert(0, ROOT);
+	try
+	{
+		path = client->raw_request.substr(0, client->raw_request.find("\r\n"));
+		path = path.substr(0, path.rfind(" "));
+		path = path.substr(path.find("/"));
+		if (path == "/")
+			path.append(INDEX);
+		path.insert(0, ROOT);
+	}
+	catch (std::out_of_range& e)
+	{
+		std::cout << e.what() << '\n';
+		client->status = 400;
+		return ;
+	}
 
 	if (access(path.data(), R_OK) == -1)
 	{
@@ -128,9 +144,8 @@ void	Webserv::_get_ressource(Client *client)
 		client->response.append("Content-Type: text/html; charset=UTF-8\r\n");
 
 		client->response.append("Content-Length: ");
-		tmp = ::ft_itoa(ifd.gcount());
+		tmp = ::itoa(ifd.gcount());
 		client->response.append(tmp);
-		delete tmp;
 		client->response.append("\r\n");
 
 		// Body
diff --git a/srcs/webserv/run_loop.cpp b/srcs/webserv/run_loop.cpp
index f8ce7cb..215e4f9 100644
--- a/srcs/webserv/run_loop.cpp
+++ b/srcs/webserv/run_loop.cpp
@@ -4,6 +4,14 @@
 #define MAX_EVENTS 42 // arbitrary
 #define TIMEOUT 3000
 
+// Temp. To move in other file
+bool	operator==(const Client& lhs, const Client& rhs)
+	{ return lhs.fd == rhs.fd; }
+bool	operator==(const Client& lhs, int fd)
+	{ return lhs.fd == fd; }
+bool	operator==(int fd, const Client& rhs)
+	{ return fd == rhs.fd; }
+
 void	Webserv::run()
 {
 	std::cerr << "Server started\n";
@@ -33,15 +41,14 @@ void	Webserv::run()
 		i = 0;
 		while (i < nfds)
 		{
-			// if ((events[i].data.u32 == SERVER_FD) && (events[i].events & EPOLLIN)) // Dont work, see "SERVER_FD" define
-			// if ((events[i].data.fd == _socket_fd) && (events[i].events & EPOLLIN))
+			// TODO : handle EPOLLERR and EPOLLHUP
 			if ((std::find(_listen_sockets.begin(), _listen_sockets.end(), events[i].data.fd) != _listen_sockets.end())
 				&& (events[i].events & EPOLLIN))
 				_accept_connection(events[i].data.fd);
 			else if (events[i].events & EPOLLIN)
-				_request(static_cast<Client*>(events[i].data.ptr));
+				_request( &(*std::find(_clients.begin(), _clients.end(), events[i].data.fd)) );
 			else if (events[i].events & EPOLLOUT)
-				_response(static_cast<Client*>(events[i].data.ptr));
+				_response( &(*std::find(_clients.begin(), _clients.end(), events[i].data.fd)) );
 			++i;
 			if (!g_run)
 				break;