103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
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/*
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* Copyright (C) 2014 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "guac_clipboard.h"
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#include <guacamole/client.h>
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#include <guacamole/protocol.h>
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#include <guacamole/stream.h>
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#include <string.h>
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#include <stdlib.h>
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guac_common_clipboard* guac_common_clipboard_alloc(int size) {
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guac_common_clipboard* clipboard = malloc(sizeof(guac_common_clipboard));
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/* Init clipboard */
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clipboard->mimetype[0] = '\0';
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clipboard->buffer = malloc(size);
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clipboard->length = 0;
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clipboard->available = size;
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return clipboard;
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}
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void guac_common_clipboard_free(guac_common_clipboard* clipboard) {
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free(clipboard->buffer);
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free(clipboard);
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}
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void guac_common_clipboard_send(guac_common_clipboard* clipboard, guac_client* client) {
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char* current = clipboard->buffer;
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int remaining = clipboard->length;
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/* Begin stream */
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guac_stream* stream = guac_client_alloc_stream(client);
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guac_protocol_send_clipboard(client->socket, stream, clipboard->mimetype);
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/* Split clipboard into chunks */
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while (remaining > 0) {
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/* Calculate size of next block */
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int block_size = GUAC_COMMON_CLIPBOARD_BLOCK_SIZE;
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if (remaining < block_size)
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block_size = remaining;
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/* Send block */
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guac_protocol_send_blob(client->socket, stream, current, block_size);
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/* Next block */
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remaining -= block_size;
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current += block_size;
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}
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/* End stream */
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guac_protocol_send_end(client->socket, stream);
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guac_client_free_stream(client, stream);
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}
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void guac_common_clipboard_reset(guac_common_clipboard* clipboard, const char* mimetype) {
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clipboard->length = 0;
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strncpy(clipboard->mimetype, mimetype, sizeof(clipboard->mimetype)-1);
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}
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void guac_common_clipboard_append(guac_common_clipboard* clipboard, const char* data, int length) {
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/* Truncate data to available length */
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int remaining = clipboard->available - clipboard->length;
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if (remaining < length)
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length = remaining;
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/* Append to buffer */
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memcpy(clipboard->buffer + clipboard->length, data, length);
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/* Update length */
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clipboard->length += length;
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}
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