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1/*
2 This file is part of libmicrohttpd
3 (C) 2007, 2008 Christian Grothoff
4
5 libmicrohttpd is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
9
10 libmicrohttpd is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with libmicrohttpd; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
19*/
20
21/**
22 * @file querystring_example.c
23 * @brief example for how to get the query string from libmicrohttpd
24 * Call with an URI ending with something like "?q=QUERY"
25 * @author Christian Grothoff
26 */
27
28#include "config.h"
29#include <microhttpd.h>
30#include <stdlib.h>
31#ifndef MINGW
32#include <unistd.h>
33#endif
34#include <string.h>
35#include <stdio.h>
36
37#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>Query string for &quot;%s&quot; was &quot;%s&quot;</body></html>"
38
39static int
40ahc_echo (void *cls,
41 struct MHD_Connection *connection,
42 const char *url,
43 const char *method,
44 const char *version,
45 const char *upload_data, unsigned int *upload_data_size, void **ptr)
46{
47 static int aptr;
48 const char *fmt = cls;
49 const char *val;
50 char *me;
51 struct MHD_Response *response;
52 int ret;
53
54 if (0 != strcmp (method, "GET"))
55 return MHD_NO; /* unexpected method */
56 if (&aptr != *ptr)
57 {
58 /* do never respond on first call */
59 *ptr = &aptr;
60 return MHD_YES;
61 }
62 *ptr = NULL; /* reset when done */
63 val = MHD_lookup_connection_value (connection, MHD_GET_ARGUMENT_KIND, "q");
64 me = malloc (snprintf (NULL, 0, fmt, "q", val) + 1);
65 sprintf (me, fmt, "q", val);
66 response = MHD_create_response_from_data (strlen (me), me, MHD_YES, MHD_NO);
67 ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
68 MHD_destroy_response (response);
69 return ret;
70}
71
72int
73main (int argc, char *const *argv)
74{
75 struct MHD_Daemon *d;
76
77 if (argc != 3)
78 {
79 printf ("%s PORT SECONDS-TO-RUN\n", argv[0]);
80 return 1;
81 }
82 d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
83 atoi (argv[1]),
84 NULL, NULL, &ahc_echo, PAGE, MHD_OPTION_END);
85 if (d == NULL)
86 return 1;
87 sleep (atoi (argv[2]));
88 MHD_stop_daemon (d);
89 return 0;
90}