1 /*
2 This file is part of libmicrohttpd
3 Copyright (C) 2015 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 chunked_example.c
21 * @brief example for generating chunked encoding with libmicrohttpd
22 * @author Christian Grothoff
23 */
24
25 #include "platform.h"
26 #include <microhttpd.h>
27
28
29 static ssize_t
callback(void * cls,uint64_t pos,char * buf,size_t max)30 callback (void *cls,
31 uint64_t pos,
32 char *buf,
33 size_t max)
34 {
35 return MHD_CONTENT_READER_END_OF_STREAM;
36 }
37
38
39
40 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)41 ahc_echo (void *cls,
42 struct MHD_Connection *connection,
43 const char *url,
44 const char *method,
45 const char *version,
46 const char *upload_data, size_t *upload_data_size, void **ptr)
47 {
48 static int aptr;
49 struct MHD_Response *response;
50 int ret;
51
52 if (0 != strcmp (method, "GET"))
53 return MHD_NO; /* unexpected method */
54 if (&aptr != *ptr)
55 {
56 /* do never respond on first call */
57 *ptr = &aptr;
58 return MHD_YES;
59 }
60 *ptr = NULL; /* reset when done */
61 response = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN,
62 1024,
63 &callback,
64 NULL,
65 NULL);
66 ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
67 MHD_destroy_response (response);
68 return ret;
69 }
70
71 int
main(int argc,char * const * argv)72 main (int argc, char *const *argv)
73 {
74 struct MHD_Daemon *d;
75
76 if (argc != 2)
77 {
78 printf ("%s PORT\n", argv[0]);
79 return 1;
80 }
81 d = MHD_start_daemon (// MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG | MHD_USE_POLL,
82 MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
83 // MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG | MHD_USE_POLL,
84 // MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
85 atoi (argv[1]),
86 NULL, NULL, &ahc_echo, NULL,
87 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120,
88 MHD_OPTION_END);
89 if (d == NULL)
90 return 1;
91 (void) getc (stdin);
92 MHD_stop_daemon (d);
93 return 0;
94 }
95