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
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 ** ptr)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
main(int argc,char * const * argv)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