1 files changed, 121 insertions, 0 deletions
diff --git a/uirdesktop/rdp5.c b/uirdesktop/rdp5.c
new file mode 100644
index 00000000..78d97168
--- /dev/null
+++ b/uirdesktop/rdp5.c
@@ -0,0 +1,121 @@
+/* -*- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "rdesktop.h"
+
+extern uint8 *g_next_packet;
+
+extern RDPCOMP g_mppc_dict;
+
+void
+rdp5_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();
+}