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authorGraham Wilson <graham@mknod.org>2004-08-31 20:27:25 +0000
committerGraham Wilson <graham@mknod.org>2004-08-31 20:27:25 +0000
commit1c7088b39c97fcb16ff58ad3d555188e20a9b5e6 (patch)
treec9f3348d9b2bae996033211960e1db3895cf578a /libntlm-0.21/smbbyteorder.h
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Remove libntlm-0.21, as the top-level directory contains the same files.
svn path=/trunk/; revision=3936
Diffstat (limited to 'libntlm-0.21/smbbyteorder.h')
-rw-r--r--libntlm-0.21/smbbyteorder.h265
1 files changed, 0 insertions, 265 deletions
diff --git a/libntlm-0.21/smbbyteorder.h b/libntlm-0.21/smbbyteorder.h
deleted file mode 100644
index 59ae4979..00000000
--- a/libntlm-0.21/smbbyteorder.h
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- Unix SMB/Netbios implementation.
- Version 1.9.
- SMB Byte handling
- Copyright (C) Andrew Tridgell 1992-1998
-
- 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.
-*/
-
-#ifndef _BYTEORDER_H
-#define _BYTEORDER_H
-
-/*
- This file implements macros for machine independent short and
- int manipulation
-
-Here is a description of this file that I emailed to the samba list once:
-
-> I am confused about the way that byteorder.h works in Samba. I have
-> looked at it, and I would have thought that you might make a distinction
-> between LE and BE machines, but you only seem to distinguish between 386
-> and all other architectures.
->
-> Can you give me a clue?
-
-sure.
-
-The distinction between 386 and other architectures is only there as
-an optimisation. You can take it out completely and it will make no
-difference. The routines (macros) in byteorder.h are totally byteorder
-independent. The 386 optimsation just takes advantage of the fact that
-the x86 processors don't care about alignment, so we don't have to
-align ints on int boundaries etc. If there are other processors out
-there that aren't alignment sensitive then you could also define
-CAREFUL_ALIGNMENT=0 on those processors as well.
-
-Ok, now to the macros themselves. I'll take a simple example, say we
-want to extract a 2 byte integer from a SMB packet and put it into a
-type called uint16 that is in the local machines byte order, and you
-want to do it with only the assumption that uint16 is _at_least_ 16
-bits long (this last condition is very important for architectures
-that don't have any int types that are 2 bytes long)
-
-You do this:
-
-#define CVAL(buf,pos) (((unsigned char *)(buf))[pos])
-#define PVAL(buf,pos) ((unsigned)CVAL(buf,pos))
-#define SVAL(buf,pos) (PVAL(buf,pos)|PVAL(buf,(pos)+1)<<8)
-
-then to extract a uint16 value at offset 25 in a buffer you do this:
-
-char *buffer = foo_bar();
-uint16 xx = SVAL(buffer,25);
-
-We are using the byteoder independence of the ANSI C bitshifts to do
-the work. A good optimising compiler should turn this into efficient
-code, especially if it happens to have the right byteorder :-)
-
-I know these macros can be made a bit tidier by removing some of the
-casts, but you need to look at byteorder.h as a whole to see the
-reasoning behind them. byteorder.h defines the following macros:
-
-SVAL(buf,pos) - extract a 2 byte SMB value
-IVAL(buf,pos) - extract a 4 byte SMB value
-SVALS(buf,pos) signed version of SVAL()
-IVALS(buf,pos) signed version of IVAL()
-
-SSVAL(buf,pos,val) - put a 2 byte SMB value into a buffer
-SIVAL(buf,pos,val) - put a 4 byte SMB value into a buffer
-SSVALS(buf,pos,val) - signed version of SSVAL()
-SIVALS(buf,pos,val) - signed version of SIVAL()
-
-RSVAL(buf,pos) - like SVAL() but for NMB byte ordering
-RSVALS(buf,pos) - like SVALS() but for NMB byte ordering
-RIVAL(buf,pos) - like IVAL() but for NMB byte ordering
-RIVALS(buf,pos) - like IVALS() but for NMB byte ordering
-RSSVAL(buf,pos,val) - like SSVAL() but for NMB ordering
-RSIVAL(buf,pos,val) - like SIVAL() but for NMB ordering
-RSIVALS(buf,pos,val) - like SIVALS() but for NMB ordering
-
-it also defines lots of intermediate macros, just ignore those :-)
-
-*/
-
-/* some switch macros that do both store and read to and from SMB buffers */
-
-#define RW_PCVAL(read,inbuf,outbuf,len) \
- { if (read) { PCVAL (inbuf,0,outbuf,len); } \
- else { PSCVAL(inbuf,0,outbuf,len); } }
-
-#define RW_PIVAL(read,big_endian,inbuf,outbuf,len) \
- { if (read) { if (big_endian) { RPIVAL(inbuf,0,outbuf,len); } else { PIVAL(inbuf,0,outbuf,len); } } \
- else { if (big_endian) { RPSIVAL(inbuf,0,outbuf,len); } else { PSIVAL(inbuf,0,outbuf,len); } } }
-
-#define RW_PSVAL(read,big_endian,inbuf,outbuf,len) \
- { if (read) { if (big_endian) { RPSVAL(inbuf,0,outbuf,len); } else { PSVAL(inbuf,0,outbuf,len); } } \
- else { if (big_endian) { RPSSVAL(inbuf,0,outbuf,len); } else { PSSVAL(inbuf,0,outbuf,len); } } }
-
-#define RW_CVAL(read, inbuf, outbuf, offset) \
- { if (read) { (outbuf) = CVAL (inbuf,offset); } \
- else { SCVAL(inbuf,offset,outbuf); } }
-
-#define RW_IVAL(read, big_endian, inbuf, outbuf, offset) \
- { if (read) { (outbuf) = ((big_endian) ? RIVAL(inbuf,offset) : IVAL (inbuf,offset)); } \
- else { if (big_endian) { RSIVAL(inbuf,offset,outbuf); } else { SIVAL(inbuf,offset,outbuf); } } }
-
-#define RW_SVAL(read, big_endian, inbuf, outbuf, offset) \
- { if (read) { (outbuf) = ((big_endian) ? RSVAL(inbuf,offset) : SVAL (inbuf,offset)); } \
- else { if (big_endian) { RSSVAL(inbuf,offset,outbuf); } else { SSVAL(inbuf,offset,outbuf); } } }
-
-#undef CAREFUL_ALIGNMENT
-
-/* we know that the 386 can handle misalignment and has the "right"
- byteorder */
-#ifdef __i386__
-#define CAREFUL_ALIGNMENT 0
-#endif
-
-#ifndef CAREFUL_ALIGNMENT
-#define CAREFUL_ALIGNMENT 1
-#endif
-
-#define CVAL(buf,pos) (((unsigned char *)(buf))[pos])
-#define PVAL(buf,pos) ((unsigned)CVAL(buf,pos))
-#define SCVAL(buf,pos,val) (CVAL(buf,pos) = (val))
-
-
-#if CAREFUL_ALIGNMENT
-
-#define SVAL(buf,pos) (PVAL(buf,pos)|PVAL(buf,(pos)+1)<<8)
-#define IVAL(buf,pos) (SVAL(buf,pos)|SVAL(buf,(pos)+2)<<16)
-#define SSVALX(buf,pos,val) (CVAL(buf,pos)=(val)&0xFF,CVAL(buf,pos+1)=(val)>>8)
-#define SIVALX(buf,pos,val) (SSVALX(buf,pos,val&0xFFFF),SSVALX(buf,pos+2,val>>16))
-#define SVALS(buf,pos) ((int16)SVAL(buf,pos))
-#define IVALS(buf,pos) ((int32)IVAL(buf,pos))
-#define SSVAL(buf,pos,val) SSVALX((buf),(pos),((uint16)(val)))
-#define SIVAL(buf,pos,val) SIVALX((buf),(pos),((uint32)(val)))
-#define SSVALS(buf,pos,val) SSVALX((buf),(pos),((int16)(val)))
-#define SIVALS(buf,pos,val) SIVALX((buf),(pos),((int32)(val)))
-
-#else /* CAREFUL_ALIGNMENT */
-
-/* this handles things for architectures like the 386 that can handle
- alignment errors */
-/*
- WARNING: This section is dependent on the length of int16 and int32
- being correct
-*/
-
-/* get single value from an SMB buffer */
-#define SVAL(buf,pos) (*(uint16 *)((char *)(buf) + (pos)))
-#define IVAL(buf,pos) (*(uint32 *)((char *)(buf) + (pos)))
-#define SVALS(buf,pos) (*(int16 *)((char *)(buf) + (pos)))
-#define IVALS(buf,pos) (*(int32 *)((char *)(buf) + (pos)))
-
-/* store single value in an SMB buffer */
-#define SSVAL(buf,pos,val) SVAL(buf,pos)=((uint16)(val))
-#define SIVAL(buf,pos,val) IVAL(buf,pos)=((uint32)(val))
-#define SSVALS(buf,pos,val) SVALS(buf,pos)=((int16)(val))
-#define SIVALS(buf,pos,val) IVALS(buf,pos)=((int32)(val))
-
-#endif /* CAREFUL_ALIGNMENT */
-
-/* macros for reading / writing arrays */
-
-#define SMBMACRO(macro,buf,pos,val,len,size) \
-{ int l; for (l = 0; l < (len); l++) (val)[l] = macro((buf), (pos) + (size)*l); }
-
-#define SSMBMACRO(macro,buf,pos,val,len,size) \
-{ int l; for (l = 0; l < (len); l++) macro((buf), (pos) + (size)*l, (val)[l]); }
-
-/* reads multiple data from an SMB buffer */
-#define PCVAL(buf,pos,val,len) SMBMACRO(CVAL,buf,pos,val,len,1)
-#define PSVAL(buf,pos,val,len) SMBMACRO(SVAL,buf,pos,val,len,2)
-#define PIVAL(buf,pos,val,len) SMBMACRO(IVAL,buf,pos,val,len,4)
-#define PCVALS(buf,pos,val,len) SMBMACRO(CVALS,buf,pos,val,len,1)
-#define PSVALS(buf,pos,val,len) SMBMACRO(SVALS,buf,pos,val,len,2)
-#define PIVALS(buf,pos,val,len) SMBMACRO(IVALS,buf,pos,val,len,4)
-
-/* stores multiple data in an SMB buffer */
-#define PSCVAL(buf,pos,val,len) SSMBMACRO(SCVAL,buf,pos,val,len,1)
-#define PSSVAL(buf,pos,val,len) SSMBMACRO(SSVAL,buf,pos,val,len,2)
-#define PSIVAL(buf,pos,val,len) SSMBMACRO(SIVAL,buf,pos,val,len,4)
-#define PSCVALS(buf,pos,val,len) SSMBMACRO(SCVALS,buf,pos,val,len,1)
-#define PSSVALS(buf,pos,val,len) SSMBMACRO(SSVALS,buf,pos,val,len,2)
-#define PSIVALS(buf,pos,val,len) SSMBMACRO(SIVALS,buf,pos,val,len,4)
-
-
-/* now the reverse routines - these are used in nmb packets (mostly) */
-#define SREV(x) ((((x)&0xFF)<<8) | (((x)>>8)&0xFF))
-#define IREV(x) ((SREV(x)<<16) | (SREV((x)>>16)))
-
-#define RSVAL(buf,pos) SREV(SVAL(buf,pos))
-#define RSVALS(buf,pos) SREV(SVALS(buf,pos))
-#define RIVAL(buf,pos) IREV(IVAL(buf,pos))
-#define RIVALS(buf,pos) IREV(IVALS(buf,pos))
-#define RSSVAL(buf,pos,val) SSVAL(buf,pos,SREV(val))
-#define RSSVALS(buf,pos,val) SSVALS(buf,pos,SREV(val))
-#define RSIVAL(buf,pos,val) SIVAL(buf,pos,IREV(val))
-#define RSIVALS(buf,pos,val) SIVALS(buf,pos,IREV(val))
-
-/* reads multiple data from an SMB buffer (big-endian) */
-#define RPSVAL(buf,pos,val,len) SMBMACRO(RSVAL,buf,pos,val,len,2)
-#define RPIVAL(buf,pos,val,len) SMBMACRO(RIVAL,buf,pos,val,len,4)
-#define RPSVALS(buf,pos,val,len) SMBMACRO(RSVALS,buf,pos,val,len,2)
-#define RPIVALS(buf,pos,val,len) SMBMACRO(RIVALS,buf,pos,val,len,4)
-
-/* stores multiple data in an SMB buffer (big-endian) */
-#define RPSSVAL(buf,pos,val,len) SSMBMACRO(RSSVAL,buf,pos,val,len,2)
-#define RPSIVAL(buf,pos,val,len) SSMBMACRO(RSIVAL,buf,pos,val,len,4)
-#define RPSSVALS(buf,pos,val,len) SSMBMACRO(RSSVALS,buf,pos,val,len,2)
-#define RPSIVALS(buf,pos,val,len) SSMBMACRO(RSIVALS,buf,pos,val,len,4)
-
-#define DBG_RW_PCVAL(charmode,string,depth,base,read,inbuf,outbuf,len) \
- { RW_PCVAL(read,inbuf,outbuf,len) \
- DEBUG(5,("%s%04x %s: ", \
- tab_depth(depth), base,string)); \
- if (charmode) print_asc(5, (unsigned char*)(outbuf), (len)); else \
- { int idx; for (idx = 0; idx < len; idx++) { DEBUG(5,("%02x ", (outbuf)[idx])); } } \
- DEBUG(5,("\n")); }
-
-#define DBG_RW_PSVAL(charmode,string,depth,base,read,big_endian,inbuf,outbuf,len) \
- { RW_PSVAL(read,big_endian,inbuf,outbuf,len) \
- DEBUG(5,("%s%04x %s: ", \
- tab_depth(depth), base,string)); \
- if (charmode) print_asc(5, (unsigned char*)(outbuf), 2*(len)); else \
- { int idx; for (idx = 0; idx < len; idx++) { DEBUG(5,("%04x ", (outbuf)[idx])); } } \
- DEBUG(5,("\n")); }
-
-#define DBG_RW_PIVAL(charmode,string,depth,base,read,big_endian,inbuf,outbuf,len) \
- { RW_PIVAL(read,big_endian,inbuf,outbuf,len) \
- DEBUG(5,("%s%04x %s: ", \
- tab_depth(depth), base,string)); \
- if (charmode) print_asc(5, (unsigned char*)(outbuf), 4*(len)); else \
- { int idx; for (idx = 0; idx < len; idx++) { DEBUG(5,("%08x ", (outbuf)[idx])); } } \
- DEBUG(5,("\n")); }
-
-#define DBG_RW_CVAL(string,depth,base,read,inbuf,outbuf) \
- { RW_CVAL(read,inbuf,outbuf,0) \
- DEBUG(5,("%s%04x %s: %02x\n", \
- tab_depth(depth), base, string, outbuf)); }
-
-#define DBG_RW_SVAL(string,depth,base,read,big_endian,inbuf,outbuf) \
- { RW_SVAL(read,big_endian,inbuf,outbuf,0) \
- DEBUG(5,("%s%04x %s: %04x\n", \
- tab_depth(depth), base, string, outbuf)); }
-
-#define DBG_RW_IVAL(string,depth,base,read,big_endian,inbuf,outbuf) \
- { RW_IVAL(read,big_endian,inbuf,outbuf,0) \
- DEBUG(5,("%s%04x %s: %08x\n", \
- tab_depth(depth), base, string, outbuf)); }
-
-#endif /* _BYTEORDER_H */