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/*
* response generation using sendfile():
* make sure that after the last write operation the
* packet is sent without corking, no unnecessary setsockopts
*/
#include <microhttpd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
static int
answer_to_connection (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 **con_cls)
{
struct stat buf;
struct MHD_Response *response;
int ret;
int fd;
if ((0 != strcmp (method, MHD_HTTP_METHOD_GET)) &&
(0 != strcmp (method, MHD_HTTP_METHOD_HEAD)))
return MHD_NO;
if ((-1 == (fd = open ("a.txt", O_RDONLY))) || (0 != fstat (fd, &buf)))
{
if (fd != -1)
close (fd);
return 1; // error
}
response = MHD_create_response_from_fd64 (buf.st_size, fd);
if (NULL == response)
{
if (0 != close (fd))
abort ();
return MHD_NO;
}
ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
if (MHD_NO == ret)
abort ();
return ret;
}
int
main (void)
{
struct MHD_Daemon *daemon;
daemon =
MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD |
MHD_USE_ERROR_LOG,
8888,
NULL,
NULL,
&answer_to_connection,
NULL,
NULL,
MHD_OPTION_END);
if (NULL == daemon)
return 1;
(void) getchar ();
MHD_stop_daemon (daemon);
return 0;
}
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