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https://git.gnunet.org/libmicrohttpd.git
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103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/* Feel free to use this example code in any way
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you see fit (Public Domain) */
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#include <sys/types.h>
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#ifndef _WIN32
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#include <sys/select.h>
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#include <sys/socket.h>
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#else
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#include <winsock2.h>
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#endif
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#include <microhttpd.h>
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#include <time.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdio.h>
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#define PORT 8888
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#define FILENAME "picture.png"
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#define MIMETYPE "image/png"
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static enum MHD_Result
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answer_to_connection (void *cls, struct MHD_Connection *connection,
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const char *url, const char *method,
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const char *version, const char *upload_data,
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size_t *upload_data_size, void **req_cls)
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{
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struct MHD_Response *response;
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int fd;
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enum MHD_Result ret;
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struct stat sbuf;
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(void) cls; /* Unused. Silent compiler warning. */
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(void) url; /* Unused. Silent compiler warning. */
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(void) version; /* Unused. Silent compiler warning. */
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(void) upload_data; /* Unused. Silent compiler warning. */
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(void) upload_data_size; /* Unused. Silent compiler warning. */
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(void) req_cls; /* Unused. Silent compiler warning. */
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if (0 != strcmp (method, "GET"))
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return MHD_NO;
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if ( (-1 == (fd = open (FILENAME, O_RDONLY))) ||
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(0 != fstat (fd, &sbuf)) )
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{
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const char *errorstr =
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"<html><body>An internal server error has occurred!\
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</body></html>";
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/* error accessing file */
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if (fd != -1)
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(void) close (fd);
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response =
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MHD_create_response_from_buffer_static (strlen (errorstr), errorstr);
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if (NULL != response)
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{
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ret =
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MHD_queue_response (connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
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response);
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MHD_destroy_response (response);
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return ret;
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}
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else
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return MHD_NO;
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}
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response =
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MHD_create_response_from_fd_at_offset64 ((uint64_t) sbuf.st_size,
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fd,
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0);
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if (MHD_YES !=
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MHD_add_response_header (response,
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MHD_HTTP_HEADER_CONTENT_TYPE,
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MIMETYPE))
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{
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fprintf (stderr,
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"Failed to set content type header!\n");
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/* return response without content encoding anyway ... */
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}
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ret = MHD_queue_response (connection,
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MHD_HTTP_OK,
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response);
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MHD_destroy_response (response);
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return ret;
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}
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int
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main (void)
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{
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struct MHD_Daemon *daemon;
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daemon = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD, PORT, NULL, NULL,
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&answer_to_connection, NULL, MHD_OPTION_END);
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if (NULL == daemon)
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return 1;
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(void) getchar ();
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MHD_stop_daemon (daemon);
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return 0;
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}
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