libmicrohttpd demo

(* This file is part of libmicrohttpd Copyright (C) 2007, 2012 Christian Grothoff (and other contributing authors) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) (** * @file dual_stack_example.pp (Original: dual_stack_example.c) * @brief how to use MHD with both IPv4 and IPv6 support (dual-stack) * @author Christian Grothoff / Silvio Clécio *) // To test it, just execute: $ curl -g -6 "http://[::1]:8888/" program dual_stack_example; {$mode objfpc}{$H+} uses sysutils, libmicrohttpd; const PAGE: Pcchar = 'libmicrohttpd demolibmicrohttpd demo'; function ahc_echo(cls: Pointer; connection: PMHD_Connection; url: Pcchar; method: Pcchar; version: Pcchar; upload_data: Pcchar; upload_data_size: Psize_t; ptr: PPointer): cint; cdecl; const aptr: cint = 0; var me: Pcchar; response: PMHD_Response; ret: cint; begin me := cls; if 0 <> strcomp(method, 'GET') then Exit(MHD_NO); (* unexpected method *) if @aptr <> ptr^ then begin (* do never respond on first call *) ptr^ := @aptr; Exit(MHD_YES); end; ptr^ := nil; (* reset when done *) response := MHD_create_response_from_buffer(strlen(me), Pointer(me), MHD_RESPMEM_PERSISTENT); ret := MHD_queue_response(connection, MHD_HTTP_OK, response); MHD_destroy_response(response); Result := ret; end; var d: PMHD_Daemon; begin if argc <> 2 then begin WriteLn(argv[0], ' PORT'); Halt(1); end; d := MHD_start_daemon(MHD_USE_SELECT_INTERNALLY or MHD_USE_DEBUG or MHD_USE_DUAL_STACK, StrToInt(argv[1]), nil, nil, @ahc_echo, PAGE, MHD_OPTION_CONNECTION_TIMEOUT, cuint(120), MHD_OPTION_END); ReadLn; MHD_stop_daemon(d); end.