68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2015 Glyptodon LLC
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
* THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "common.h"
|
||
|
|
#include "packet.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
int guac_terminal_packet_write(int fd, const void* data, int length) {
|
||
|
|
|
||
|
|
guac_terminal_packet out;
|
||
|
|
|
||
|
|
/* Do not attempt to write packets beyond maximum size */
|
||
|
|
if (length > GUAC_TERMINAL_PACKET_SIZE)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
/* Calculate final packet length */
|
||
|
|
int packet_length = sizeof(int) + length;
|
||
|
|
|
||
|
|
/* Copy data into packet */
|
||
|
|
out.length = length;
|
||
|
|
memcpy(out.data, data, length);
|
||
|
|
|
||
|
|
/* Write packet */
|
||
|
|
return guac_terminal_write_all(fd, (const char*) &out, packet_length);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
int guac_terminal_packet_read(int fd, void* data, int length) {
|
||
|
|
|
||
|
|
int bytes;
|
||
|
|
|
||
|
|
/* Read buffers MUST be at least GUAC_TERMINAL_PACKET_SIZE */
|
||
|
|
if (length < GUAC_TERMINAL_PACKET_SIZE)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
/* Read length */
|
||
|
|
if (guac_terminal_fill_buffer(fd, (char*) &bytes, sizeof(int)) < 0)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
/* Read body */
|
||
|
|
if (guac_terminal_fill_buffer(fd, (char*) data, bytes) < 0)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
return bytes;
|
||
|
|
|
||
|
|
}
|
||
|
|
|