/* -*- c-basic-offset: 8 -*-   rdesktop: A Remote Desktop Protocol client.   Protocol services - RDP5 short form PDU processing   Copyright (C) Matthew Chapman 1999-2007   Copyright (C) Erik Forsberg 2003-2007   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., 675 Mass Ave, Cambridge, MA 02139, USA.*/#include "rdesktop.h"extern uint8 *g_next_packet;extern RDPCOMP g_mppc_dict;voidrdp5_process(STREAM s){	uint16 length, count, x, y;	uint8 type, ctype;	uint8 *next;	uint32 roff, rlen;	struct stream *ns = &(g_mppc_dict.ns);	struct stream *ts;#if 0	printf("RDP5 data:\n");	hexdump(s->p, s->end - s->p);#endif	ui_begin_update();	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);		}		g_next_packet = next = s->p + length;		if (ctype & RDP_MPPC_COMPRESSED)		{			if (mppc_expand(s->p, length, ctype, &roff, &rlen) == -1)				error("error while decompressing packet\n");			/* allocate memory and copy the uncompressed data into the temporary stream */			ns->data = (uint8 *) xrealloc(ns->data, rlen);			memcpy((ns->data), (unsigned char *) (g_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(ts, count);				break;			case 1:	/* update bitmap */				in_uint8s(ts, 2);	/* part length */				process_bitmap_updates(ts);				break;			case 2:	/* update palette */				in_uint8s(ts, 2);	/* uint16 = 2 */				process_palette(ts);				break;			case 3:	/* update synchronize */				break;			case 5:	/* null pointer */				ui_set_null_cursor();				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(x, y);				break;			case 9:	/* color pointer */				process_colour_pointer_pdu(ts);				break;			case 10:	/* cached pointer */				process_cached_pointer_pdu(ts);				break;			default:				unimpl("RDP5 opcode %d\n", type);		}		s->p = next;	}	ui_end_update();}