merged, seems fine

srcs/utils.cpp

@@ -139,3 +139,8 @@ void	replace_all_substr(std::string &str, const std::string &ori_substr, const s
 	}
 }
 
+bool	operator==(const listen_socket& lhs, int fd)
+	{ return lhs.fd == fd; }
+
+bool	operator==(int fd, const listen_socket& rhs)
+	{ return fd == rhs.fd; }