1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
This file is part of libmicrohttpd
(C) 2007, 2008 Christian Grothoff
libmicrohttpd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
libmicrohttpd 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libmicrohttpd; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file fileserver_example_external_select.c
* @brief minimal example for how to use libmicrohttpd to server files
* @author Christian Grothoff
*/
#include "config.h"
#include <microhttpd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifndef MINGW
#include <unistd.h>
#endif
#include <string.h>
#include <stdio.h>
#define PAGE "<html><head><title>File not found</title></head><body>File not found</body></html>"
static int
file_reader (void *cls, size_t pos, char *buf, int max)
{
FILE *file = cls;
fseek (file, pos, SEEK_SET);
return fread (buf, 1, max, file);
}
static int
ahc_echo (void *cls,
struct MHD_Connection *connection,
const char *url,
const char *method,
const char *upload_data,
const char *version, unsigned int *upload_data_size, void **ptr)
{
static int aptr;
struct MHD_Response *response;
int ret;
FILE *file;
struct stat buf;
if (0 != strcmp (method, MHD_HTTP_METHOD_GET))
return MHD_NO; /* unexpected method */
if (&aptr != *ptr)
{
/* do never respond on first call */
*ptr = &aptr;
return MHD_YES;
}
*ptr = NULL; /* reset when done */
file = fopen (&url[1], "r");
if (file == NULL)
{
response = MHD_create_response_from_data (strlen (PAGE),
(void *) PAGE,
MHD_NO, MHD_NO);
ret = MHD_queue_response (connection, MHD_HTTP_NOT_FOUND, response);
MHD_destroy_response (response);
}
else
{
stat (&url[1], &buf);
response = MHD_create_response_from_callback (buf.st_size, 32 * 1024, /* 32k page size */
&file_reader,
file,
(MHD_ContentReaderFreeCallback)
& fclose);
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;
time_t end;
time_t t;
struct timeval tv;
fd_set rs;
fd_set ws;
fd_set es;
int max;
unsigned long long mhd_timeout;
if (argc != 3)
{
printf ("%s PORT SECONDS-TO-RUN\n", argv[0]);
return 1;
}
d = MHD_start_daemon (MHD_USE_DEBUG,
atoi (argv[1]),
NULL, NULL, &ahc_echo, PAGE, MHD_OPTION_END);
if (d == NULL)
return 1;
end = time(NULL) + atoi (argv[2]);
while ( (t = time(NULL)) < end)
{
tv.tv_sec = end - t;
tv.tv_usec = 0;
max = 0;
FD_ZERO(&rs);
FD_ZERO(&ws);
FD_ZERO(&es);
MHD_get_fdset(d, &rs, &ws, &es, &max);
if (MHD_get_timeout(d, &mhd_timeout) == MHD_YES)
{
if (tv.tv_sec * 1000 < mhd_timeout)
{
tv.tv_sec = mhd_timeout / 1000;
tv.tv_usec = (mhd_timout - (tv.tv_sec * 1000)) * 1000;
}
}
SELECT(max+1, &rs, &ws, &es, &tv);
MHD_run(d);
}
MHD_stop_daemon (d);
return 0;
}
|
