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/* Feel free to use this example code in any way
you see fit (Public Domain) */
#include <sys/types.h>
#ifndef _WIN32
#include <sys/select.h>
#include <sys/socket.h>
#else
#include <winsock2.h>
#endif
#include <microhttpd.h>
#include <time.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#define PORT 8888
#define FILENAME "picture.png"
#define MIMETYPE "image/png"
static enum MHD_Result
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 **req_cls)
{
struct MHD_Response *response;
int fd;
enum MHD_Result ret;
struct stat sbuf;
(void) cls; /* Unused. Silent compiler warning. */
(void) url; /* Unused. Silent compiler warning. */
(void) version; /* Unused. Silent compiler warning. */
(void) upload_data; /* Unused. Silent compiler warning. */
(void) upload_data_size; /* Unused. Silent compiler warning. */
(void) req_cls; /* Unused. Silent compiler warning. */
if (0 != strcmp (method, "GET"))
return MHD_NO;
if ( (-1 == (fd = open (FILENAME, O_RDONLY))) ||
(0 != fstat (fd, &sbuf)) )
{
const char *errorstr =
"<html><body>An internal server error has occurred!\
</body></html>";
/* error accessing file */
if (fd != -1)
(void) close (fd);
response =
MHD_create_response_from_buffer (strlen (errorstr),
(void *) errorstr,
MHD_RESPMEM_PERSISTENT);
if (NULL != response)
{
ret =
MHD_queue_response (connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
response);
MHD_destroy_response (response);
return ret;
}
else
return MHD_NO;
}
response =
MHD_create_response_from_fd_at_offset64 (sbuf.st_size, fd, 0);
MHD_add_response_header (response, "Content-Type", MIMETYPE);
ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
return ret;
}
int
main ()
{
struct MHD_Daemon *daemon;
daemon = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD, PORT, NULL, NULL,
&answer_to_connection, NULL, MHD_OPTION_END);
if (NULL == daemon)
return 1;
(void) getchar ();
MHD_stop_daemon (daemon);
return 0;
}
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