2 rdesktop: A Remote Desktop Protocol client.
4 Copyright (C) Matthew Chapman 1999-2002
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.
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.
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.
29 /* Offsets of various headers */
30 unsigned char *iso_hdr;
31 unsigned char *mcs_hdr;
32 unsigned char *sec_hdr;
33 unsigned char *rdp_hdr;
34 unsigned char *channel_hdr;
39 #define s_push_layer(s,h,n) { (s)->h = (s)->p; (s)->p += n; }
40 #define s_pop_layer(s,h) (s)->p = (s)->h;
41 #define s_mark_end(s) (s)->end = (s)->p;
42 #define s_check(s) ((s)->p <= (s)->end)
43 #define s_check_rem(s,n) ((s)->p + n <= (s)->end)
44 #define s_check_end(s) ((s)->p == (s)->end)
46 #if defined(L_ENDIAN) && !defined(NEED_ALIGN)
47 #define in_uint16_le(s,v) { v = *(uint16 *)((s)->p); (s)->p += 2; }
48 #define in_uint32_le(s,v) { v = *(uint32 *)((s)->p); (s)->p += 4; }
49 #define out_uint16_le(s,v) { *(uint16 *)((s)->p) = v; (s)->p += 2; }
50 #define out_uint32_le(s,v) { *(uint32 *)((s)->p) = v; (s)->p += 4; }
53 #define in_uint16_le(s,v) { v = *((s)->p++); v += *((s)->p++) << 8; }
54 #define in_uint32_le(s,v) { in_uint16_le(s,v) \
55 v += *((s)->p++) << 16; v += *((s)->p++) << 24; }
56 #define out_uint16_le(s,v) { *((s)->p++) = (v) & 0xff; *((s)->p++) = ((v) >> 8) & 0xff; }
57 #define out_uint32_le(s,v) { out_uint16_le(s, (v) & 0xffff); out_uint16_le(s, ((v) >> 16) & 0xffff); }
60 #if defined(B_ENDIAN) && !defined(NEED_ALIGN)
61 #define in_uint16_be(s,v) { v = *(uint16 *)((s)->p); (s)->p += 2; }
62 #define in_uint32_be(s,v) { v = *(uint32 *)((s)->p); (s)->p += 4; }
63 #define out_uint16_be(s,v) { *(uint16 *)((s)->p) = v; (s)->p += 2; }
64 #define out_uint32_be(s,v) { *(uint32 *)((s)->p) = v; (s)->p += 4; }
66 #define B_ENDIAN_PREFERRED
67 #define in_uint16(s,v) in_uint16_be(s,v)
68 #define in_uint32(s,v) in_uint32_be(s,v)
69 #define out_uint16(s,v) out_uint16_be(s,v)
70 #define out_uint32(s,v) out_uint32_be(s,v)
73 #define next_be(s,v) v = ((v) << 8) + *((s)->p++);
74 #define in_uint16_be(s,v) { v = *((s)->p++); next_be(s,v); }
75 #define in_uint32_be(s,v) { in_uint16_be(s,v); next_be(s,v); next_be(s,v); }
76 #define out_uint16_be(s,v) { *((s)->p++) = ((v) >> 8) & 0xff; *((s)->p++) = (v) & 0xff; }
77 #define out_uint32_be(s,v) { out_uint16_be(s, ((v) >> 16) & 0xffff); out_uint16_be(s, (v) & 0xffff); }
80 #ifndef B_ENDIAN_PREFERRED
81 #define in_uint16(s,v) in_uint16_le(s,v)
82 #define in_uint32(s,v) in_uint32_le(s,v)
83 #define out_uint16(s,v) out_uint16_le(s,v)
84 #define out_uint32(s,v) out_uint32_le(s,v)
87 #define in_uint8(s,v) v = *((s)->p++);
88 #define in_uint8p(s,v,n) { v = (s)->p; (s)->p += n; }
89 #define in_uint8a(s,v,n) { memcpy(v,(s)->p,n); (s)->p += n; }
90 #define in_uint8s(s,n) (s)->p += n;
91 #define out_uint8(s,v) *((s)->p++) = v;
92 #define out_uint8p(s,v,n) { memcpy((s)->p,v,n); (s)->p += n; }
93 #define out_uint8a(s,v,n) out_uint8p(s,v,n);
94 #define out_uint8s(s,n) { memset((s)->p,0,n); (s)->p += n; }