1 /* 2 This file is part of libmicrohttpd 3 Copyright (C) 2007, 2012 Christian Grothoff (and other contributing authors) 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 This library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with this library; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 /** 20 * @file dual_stack_example.c 21 * @brief how to use MHD with both IPv4 and IPv6 support (dual-stack) 22 * @author Christian Grothoff 23 */ 24 25 #include "platform.h" 26 #include <microhttpd.h> 27 28 #define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>" 29 30 static int 31 ahc_echo (void *cls, 32 struct MHD_Connection *connection, 33 const char *url, 34 const char *method, 35 const char *version, 36 const char *upload_data, size_t *upload_data_size, void **ptr) 37 { 38 static int aptr; 39 const char *me = cls; 40 struct MHD_Response *response; 41 int ret; 42 43 if (0 != strcmp (method, "GET")) 44 return MHD_NO; /* unexpected method */ 45 if (&aptr != *ptr) 46 { 47 /* do never respond on first call */ 48 *ptr = &aptr; 49 return MHD_YES; 50 } 51 *ptr = NULL; /* reset when done */ 52 response = MHD_create_response_from_buffer (strlen (me), 53 (void *) me, 54 MHD_RESPMEM_PERSISTENT); 55 ret = MHD_queue_response (connection, MHD_HTTP_OK, response); 56 MHD_destroy_response (response); 57 return ret; 58 } 59 60 61 int 62 main (int argc, char *const *argv) 63 { 64 struct MHD_Daemon *d; 65 66 if (argc != 2) 67 { 68 printf ("%s PORT\n", argv[0]); 69 return 1; 70 } 71 d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG | MHD_USE_DUAL_STACK, 72 atoi (argv[1]), 73 NULL, NULL, &ahc_echo, PAGE, 74 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120, 75 MHD_OPTION_END); 76 (void) getc (stdin); 77 MHD_stop_daemon (d); 78 return 0; 79 } 80
