trunk/rdesktop/parse.h

/*
   rdesktop: A Remote Desktop Protocol client.
   Protocol services - parsing layer
   Copyright (C) Matthew Chapman 1999-2000
   
   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.
*/

/* Parser state */
typedef struct stream
{
        /* Parsing layer */
        unsigned char *data;
        unsigned int size;
        unsigned int offset;
        unsigned int end;
        BOOL marshall;
        BOOL error;

        /* Other layers */
        int iso_offset;
        int mcs_offset;
        int rdp_offset;

} *STREAM;

/* Connection state */
typedef struct connection
{
        /* Parsing layer */
        struct stream in;
        struct stream out;

        /* TCP layer */
        int tcp_socket;

        /* MCS layer */
        uint16 mcs_userid;

} *HCONN;

#define STREAM_INIT(s,m)   { s.data = xmalloc(2048); s.end = s.size = 2048; s.offset = 0; s.marshall = m; s.error = False; }
#define STREAM_SIZE(s,l)   { if (l > s.size) { s.data = xrealloc(s.data,l); s.end = s.size = l; } }
#define REMAINING(s)       ( s->end - s->offset )
#define PUSH_LAYER(s,v,l)  { s.v = s.offset; s.offset += l; }
#define POP_LAYER(s,v)     { s.offset = s.v; }
#define MARK_END(s)        { s.end = s.offset; }
1	/*
2	rdesktop: A Remote Desktop Protocol client.
3	Protocol services - parsing layer
4	Copyright (C) Matthew Chapman 1999-2000
5
6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 2 of the License, or
9	(at your option) any later version.
10
11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19	*/
20
21	/* Parser state */
22	typedef struct stream
23	{
24	/* Parsing layer */
25	unsigned char *data;
26	unsigned int size;
27	unsigned int offset;
28	unsigned int end;
29	BOOL marshall;
30	BOOL error;
31
32	/* Other layers */
33	int iso_offset;
34	int mcs_offset;
35	int rdp_offset;
36
37	} *STREAM;
38
39	/* Connection state */
40	typedef struct connection
41	{
42	/* Parsing layer */
43	struct stream in;
44	struct stream out;
45
46	/* TCP layer */
47	int tcp_socket;
48
49	/* MCS layer */
50	uint16 mcs_userid;
51
52	} *HCONN;
53
54	#define STREAM_INIT(s,m) { s.data = xmalloc(2048); s.end = s.size = 2048; s.offset = 0; s.marshall = m; s.error = False; }
55	#define STREAM_SIZE(s,l) { if (l > s.size) { s.data = xrealloc(s.data,l); s.end = s.size = l; } }
56	#define REMAINING(s) ( s->end - s->offset )
57	#define PUSH_LAYER(s,v,l) { s.v = s.offset; s.offset += l; }
58	#define POP_LAYER(s,v) { s.offset = s.v; }
59	#define MARK_END(s) { s.end = s.offset; }