rdp5.c File Reference

#include "precomp.h"

Include dependency graph for rdp5.c:

Go to the source code of this file.

Functions
void	rdp5_process (STREAM s)

Variables
uint8 *	g_next_packet
RDPCOMP	g_mppc_dict

Function Documentation

rdp5_process()

void rdp5_process

(

STREAM

s

)

Definition at line 28 of file rdp5.c.

Referenced by rdp_recv().

{
    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;
            case 11:
                process_new_pointer_pdu(ts);
                break;
            default:
                unimpl("RDP5 opcode %d\n", type);
        }

        s->p = next;
    }
    ui_end_update();
}

Variable Documentation

g_mppc_dict

RDPCOMP g_mppc_dict

Definition at line 55 of file mppc.c.

g_next_packet

uint8* g_next_packet

Definition at line 45 of file rdp.c.

Referenced by rdp5_process(), rdp_loop(), rdp_recv(), and rdp_reset_state().