mirror of
https://github.com/reactos/reactos.git
synced 2024-07-11 23:25:09 +00:00
129 lines
3 KiB
C
129 lines
3 KiB
C
/* -*- c-basic-offset: 8 -*-
|
|
rdesktop: A Remote Desktop Protocol client.
|
|
Protocol services - RDP5 short form PDU processing
|
|
Copyright (C) Matthew Chapman 1999-2005
|
|
Copyright (C) Erik Forsberg 2003
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "rdesktop.h"
|
|
|
|
BOOL
|
|
rdp5_process(RDPCLIENT * This, STREAM s)
|
|
{
|
|
uint16 length, count, x, y;
|
|
uint8 type, ctype;
|
|
uint8 *next;
|
|
|
|
uint32 roff, rlen;
|
|
struct stream *ns = &(This->mppc_dict.ns);
|
|
struct stream *ts;
|
|
|
|
#if 0
|
|
printf("RDP5 data:\n");
|
|
hexdump(s->p, s->end - s->p);
|
|
#endif
|
|
|
|
ui_begin_update(This);
|
|
while (s->p < s->end)
|
|
{
|
|
in_uint8(s, type);
|
|
if (type & RDP5_COMPRESSED)
|
|
{
|
|
in_uint8(s, ctype);
|
|
in_uint16_le(s, length);
|
|
type ^= RDP5_COMPRESSED;
|
|
}
|
|
else
|
|
{
|
|
ctype = 0;
|
|
in_uint16_le(s, length);
|
|
}
|
|
This->next_packet = next = s->p + length;
|
|
|
|
if (ctype & RDP_MPPC_COMPRESSED)
|
|
{
|
|
void * p;
|
|
|
|
if (mppc_expand(This, s->p, length, ctype, &roff, &rlen) == -1)
|
|
error("error while decompressing packet\n");
|
|
|
|
/* allocate memory and copy the uncompressed data into the temporary stream */
|
|
p = realloc(ns->data, rlen);
|
|
|
|
if(p == NULL)
|
|
{
|
|
This->disconnect_reason = 262;
|
|
return False;
|
|
}
|
|
|
|
ns->data = (uint8 *) p;
|
|
|
|
memcpy((ns->data), (unsigned char *) (This->mppc_dict.hist + roff), rlen);
|
|
|
|
ns->size = rlen;
|
|
ns->end = (ns->data + ns->size);
|
|
ns->p = ns->data;
|
|
ns->rdp_hdr = ns->p;
|
|
|
|
ts = ns;
|
|
}
|
|
else
|
|
ts = s;
|
|
|
|
switch (type)
|
|
{
|
|
case 0: /* update orders */
|
|
in_uint16_le(ts, count);
|
|
process_orders(This, ts, count);
|
|
break;
|
|
case 1: /* update bitmap */
|
|
in_uint8s(ts, 2); /* part length */
|
|
process_bitmap_updates(This, ts);
|
|
break;
|
|
case 2: /* update palette */
|
|
in_uint8s(ts, 2); /* uint16 = 2 */
|
|
process_palette(This, ts);
|
|
break;
|
|
case 3: /* update synchronize */
|
|
break;
|
|
case 5: /* null pointer */
|
|
ui_set_null_cursor(This);
|
|
break;
|
|
case 6: /* default pointer */
|
|
break;
|
|
case 8: /* pointer position */
|
|
in_uint16_le(ts, x);
|
|
in_uint16_le(ts, y);
|
|
if (s_check(ts))
|
|
ui_move_pointer(This, x, y);
|
|
break;
|
|
case 9: /* color pointer */
|
|
process_colour_pointer_pdu(This, ts);
|
|
break;
|
|
case 10: /* cached pointer */
|
|
process_cached_pointer_pdu(This, ts);
|
|
break;
|
|
default:
|
|
unimpl("RDP5 opcode %d\n", type);
|
|
}
|
|
|
|
s->p = next;
|
|
}
|
|
ui_end_update(This);
|
|
return True;
|
|
}
|