| /* |
| This file is part of libmicrohttpd |
| Copyright (C) 2007 Christian Grothoff (and other contributing authors) |
| Copyright (C) 2014-2022 Evgeny Grin (Karlson2k) |
| |
| 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 minimal_example.c |
| * @brief minimal example for how to use libmicrohttpd |
| * @author Christian Grothoff |
| * @author Karlson2k (Evgeny Grin) |
| */ |
| |
| #include "platform.h" |
| #include <microhttpd.h> |
| |
| #define PAGE \ |
| "<html><head><title>libmicrohttpd demo</title></head>" \ |
| "<body>libmicrohttpd demo</body></html>" |
| |
| struct handler_param |
| { |
| const char *response_page; |
| }; |
| |
| static enum MHD_Result |
| ahc_echo (void *cls, |
| struct MHD_Connection *connection, |
| const char *url, |
| const char *method, |
| const char *version, |
| const char *upload_data, |
| size_t *upload_data_size, |
| void **req_cls) |
| { |
| static int aptr; |
| struct handler_param *param = (struct handler_param *) cls; |
| struct MHD_Response *response; |
| enum MHD_Result ret; |
| |
| (void) url; /* Unused. Silent compiler warning. */ |
| (void) version; /* Unused. Silent compiler warning. */ |
| (void) upload_data; /* Unused. Silent compiler warning. */ |
| (void) upload_data_size; /* Unused. Silent compiler warning. */ |
| |
| if (0 != strcmp (method, "GET")) |
| return MHD_NO; /* unexpected method */ |
| if (&aptr != *req_cls) |
| { |
| /* do never respond on first call */ |
| *req_cls = &aptr; |
| return MHD_YES; |
| } |
| *req_cls = NULL; /* reset when done */ |
| response = |
| MHD_create_response_from_buffer_static (strlen (param->response_page), |
| param->response_page); |
| ret = MHD_queue_response (connection, |
| MHD_HTTP_OK, |
| response); |
| MHD_destroy_response (response); |
| return ret; |
| } |
| |
| |
| int |
| main (int argc, |
| char *const *argv) |
| { |
| struct MHD_Daemon *d; |
| struct handler_param data_for_handler; |
| int port; |
| |
| if (argc != 2) |
| { |
| printf ("%s PORT\n", argv[0]); |
| return 1; |
| } |
| port = atoi (argv[1]); |
| if ( (1 > port) || (port > 65535) ) |
| { |
| fprintf (stderr, |
| "Port must be a number between 1 and 65535.\n"); |
| return 1; |
| } |
| data_for_handler.response_page = PAGE; |
| d = MHD_start_daemon (/* MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG, */ |
| MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG, |
| /* MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG | MHD_USE_POLL, */ |
| /* MHD_USE_THREAD_PER_CONNECTION | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG | MHD_USE_POLL, */ |
| /* MHD_USE_THREAD_PER_CONNECTION | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG, */ |
| (uint16_t) port, |
| NULL, NULL, &ahc_echo, &data_for_handler, |
| MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120, |
| MHD_OPTION_END); |
| if (d == NULL) |
| return 1; |
| (void) getc (stdin); |
| MHD_stop_daemon (d); |
| return 0; |
| } |
