Diffstat (limited to 'noncore/net/opierdesktop/parse.h') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/net/opierdesktop/parse.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/noncore/net/opierdesktop/parse.h b/noncore/net/opierdesktop/parse.h new file mode 100644 index 0000000..f54c05f --- a/dev/null +++ b/noncore/net/opierdesktop/parse.h @@ -0,0 +1,108 @@ +/* + rdesktop: A Remote Desktop Protocol client. + Parsing primitives + Copyright (C) Matthew Chapman 1999-2002 + + 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 +{ + unsigned char *p; + unsigned char *end; + unsigned char *data; + unsigned int size; +// unsigned char *next_packet; + + + /* Offsets of various headers */ + unsigned char *iso_hdr; + unsigned char *mcs_hdr; + unsigned char *sec_hdr; + unsigned char *rdp_hdr; + +} + *STREAM; + +#define s_push_layer(s,h,n) { (s)->h = (s)->p; (s)->p += n; } +#define s_pop_layer(s,h) (s)->p = (s)->h; +#define s_mark_end(s) (s)->end = (s)->p; +#define s_check(s) ((s)->p <= (s)->end) +#define s_check_rem(s,n) ((s)->p + n <= (s)->end) +#define s_check_end(s) ((s)->p == (s)->end) + +#if defined(L_ENDIAN) && !defined(NEED_ALIGN) +#define in_uint16_le(s,v) { v = *(uint16 *)((s)->p); (s)->p += 2; } +#define in_uint32_le(s,v) { v = *(uint32 *)((s)->p); (s)->p += 4; } +#define out_uint16_le(s,v) { *(uint16 *)((s)->p) = v; (s)->p += 2; } +#define out_uint32_le(s,v) { *(uint32 *)((s)->p) = v; (s)->p += 4; } + +#else +#define in_uint16_le(s,v) { v = *((s)->p++); v += *((s)->p++) << 8; } +#define in_uint32_le(s,v) { in_uint16_le(s,v) \ + v += *((s)->p++) << 16; v += *((s)->p++) << 24; } +#define out_uint16_le(s,v) { *((s)->p++) = (v) & 0xff; *((s)->p++) = ((v) >> 8) & 0xff; } +#define out_uint32_le(s,v) { out_uint16_le(s, (v) & 0xffff); out_uint16_le(s, ((v) >> 16) & 0xffff); } +#endif + +#if defined(B_ENDIAN) && !defined(NEED_ALIGN) +#define in_uint16_be(s,v) { v = *(uint16 *)((s)->p); (s)->p += 2; } +#define in_uint32_be(s,v) { v = *(uint32 *)((s)->p); (s)->p += 4; } +#define out_uint16_be(s,v) { *(uint16 *)((s)->p) = v; (s)->p += 2; } +#define out_uint32_be(s,v) { *(uint32 *)((s)->p) = v; (s)->p += 4; } + +#define B_ENDIAN_PREFERRED +#define in_uint16(s,v) in_uint16_be(s,v) +#define in_uint32(s,v) in_uint32_be(s,v) +#define out_uint16(s,v) out_uint16_be(s,v) +#define out_uint32(s,v) out_uint32_be(s,v) + +#else +#define next_be(s,v) v = ((v) << 8) + *((s)->p++); +#define in_uint16_be(s,v) { v = *((s)->p++); next_be(s,v); } +#define in_uint32_be(s,v) { in_uint16_be(s,v); next_be(s,v); next_be(s,v); } +#define out_uint16_be(s,v) { *((s)->p++) = ((v) >> 8) & 0xff; *((s)->p++) = (v) & 0xff; } +#define out_uint32_be(s,v) { out_uint16_be(s, ((v) >> 16) & 0xffff); out_uint16_be(s, (v) & 0xffff); } +#endif + +#ifndef B_ENDIAN_PREFERRED +#define in_uint16(s,v) in_uint16_le(s,v) +#define in_uint32(s,v) in_uint32_le(s,v) +#define out_uint16(s,v) out_uint16_le(s,v) +#define out_uint32(s,v) out_uint32_le(s,v) +#endif + +#define in_uint8(s,v) v = *((s)->p++); +#define in_uint8p(s,v,n) { v = (s)->p; (s)->p += n; } +#define in_uint8a(s,v,n) { memcpy(v,(s)->p,n); (s)->p += n; } +#define in_uint8s(s,n) (s)->p += n; +#define out_uint8(s,v) *((s)->p++) = v; +#define out_uint8p(s,v,n) { memcpy((s)->p,v,n); (s)->p += n; } +#define out_uint8a(s,v,n) out_uint8p(s,v,n); +#define out_uint8s(s,n) { memset((s)->p,0,n); (s)->p += n; } + +#if defined(B_ENDIAN) + +#endif +#if defined(B_ENDIAN_PREFERRED) + +#endif +#if defined(NEED_ALIGN) + +#endif +#if defined(L_ENDIAN) + +#endif |