chxuuid.cpp

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: chxuuid.cpp,v 1.7.32.3 2004/07/09 01:48:15 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer and/or licensor of the Original Code and owns the
 * copyrights in the portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
 * 
 * ***** END LICENSE BLOCK ***** */

//
//	CHXuuid class implementation
//
//
//  This code derives from uuid.c from OSF DCE source
/*
 * 
 * (c) Copyright 1989 OPEN SOFTWARE FOUNDATION, INC.
 * (c) Copyright 1989 HEWLETT-PACKARD COMPANY
 * (c) Copyright 1989 DIGITAL EQUIPMENT CORPORATION
 * To anyone who acknowledges that this file is provided "AS IS"
 * without any express or implied warranty:
 *                 permission to use, copy, modify, and distribute this
 * file for any purpose is hereby granted without fee, provided that
 * the above copyright notices and this notice appears in all source
 * code copies, and that none of the names of Open Software
 * Foundation, Inc., Hewlett-Packard Company, or Digital Equipment
 * Corporation be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior
 * permission.  Neither Open Software Foundation, Inc., Hewlett-
 * Packard Company, nor Digital Equipment Corporation makes any
 * representations about the suitability of this software for any
 * purpose.
 * 
 */
 
#include "hxtypes.h"
#ifdef _WINDOWS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>	// for HX_GET_TICK_COUNT
#endif

#include "hlxclib/string.h"
// #include "hlxclib/stdio.h"
#include "safestring.h"

#include "hxstring.h"
#include "hxresult.h"
#include "hxassert.h"
#include "hxrand.h"
#include "chxuuid.h"
#include "hxtick.h"
#include "hxtime.h"
#include "netbyte.h"
#include "md5.h"

#include <ctype.h>
#if !defined(_VXWORKS) && !defined(_SYMBIAN) && !defined(_OPENWAVE)
#include <memory.h>
#endif
#include <stdarg.h>


#ifdef _WIN16
#include <ctype.h>
#include <memory.h>
#endif

#ifdef _WIN32
#include <objbase.h>
#endif

#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static const char HX_THIS_FILE[] = __FILE__;
#endif

#if defined(_WIN16)
// global definitons (scope: wsscanf.c)

#ifdef ALLOW_RANGE
   char szSBrackSet[] = " \t-\r]" ;  // use range-style list
#else
   char szSBrackSet[] = "\t\n\v\f\r]" ;  // chars defined by isspace 
#endif

char szCBrackSet[] = "]" ;

// constant definitions
#define ALLOW_RANGE                        // allow "%[a-z]" - style 
                                           // scansets

#define LEFT_BRACKET  ('[' | ('a' - 'A'))  // 'lowercase' version

#define ASCII         32                   // # of bytes needed to 
                                           // hold 256 bits
// macro definitions
#define INC()            (++nCharCount, Inc( (LPSTR FAR *) &lpPtrBuffer ))
#define UN_INC( chr )    (--nCharCount, UnInc( chr, (LPSTR FAR *) &lpPtrBuffer ))
#define EAT_WHITE()      WhiteOut( (int FAR *) &nCharCount, (LPSTR FAR *) &lpPtrBuffer )
#define HEXTODEC( chr )  HexToDec( chr )

#define MUL10(x)         ( (((x)<<2) + (x))<<1 )

typedef char _far *wva_list ;

#define wva_start( ap, v )  (ap = (wva_list) &v + sizeof( v ))
#define wva_arg( ap, t )    (((t _far *)(ap += sizeof( t )))[-1])
#define wva_end( ap )       (ap = NULL)

/************************************************************************
 *  char NEAR HexToDec( char chChar )
 *
 *  Description:
 *     HexToDec() convert hexadecimal to decimal equivalent.
 *
 ************************************************************************/

char NEAR HexToDec( char chChar )
{
   return (isdigit( chChar ) ? chChar : (char) ((chChar & ~('a' - 'A')) - 'A' + 10 + '0')) ;

} /* end of HexToDec() */

/************************************************************************
 *  char NEAR Inc( LPSTR FAR *lpPtrBuffer )
 *
 *  Description:
 *     "Pops" a character from the buffer.
 *
 ************************************************************************/

char NEAR Inc( LPSTR FAR *lpPtrBuffer )
{
   char  ch ;

   ch = *((LPSTR) *lpPtrBuffer) ;
   ((LPSTR&)(*lpPtrBuffer))++ ;

   return ( ch ) ;

} /* end of Inc() */

/************************************************************************
 *  VOID NEAR UnInc( char chChar, LPSTR FAR *lpPtrBuffer )
 *
 *  Description:
 *     "Pushes" a characters back into the buffer.
 *
 ************************************************************************/

VOID NEAR UnInc( char chChar, LPSTR FAR *lpPtrBuffer )
{
   ((LPSTR&)(*lpPtrBuffer))-- ;
   *((LPSTR) *lpPtrBuffer) = chChar ;
   
} /* end of UnInc() */

/************************************************************************
 *  char NEAR WhiteOut( int *lpnCounter, LPSTR FAR *lpPtrBuffer )
 *
 *  Description:
 *     Increments the string pointer while in white space.
 *
 ************************************************************************/

char NEAR WhiteOut( int FAR *lpnCounter, LPSTR FAR *lpPtrBuffer )
{
   char  ch ;

   while (isspace(ch = (++*lpnCounter, Inc( lpPtrBuffer )))) ;
   return ( ch ) ;

} /* end of WhiteOut() */

/************************************************************************
 *  int FAR _cdecl wsscanf( LPSTR lpBuffer, LPSTR lpFormat,
 *                          LPSTR lpParms, ... )
 *
 *  Description:
 *     Replacement function for sscanf().   Useable in DLLs (all
 *     parameters are passed as FAR pointers.
 *
 ************************************************************************/

int FAR _cdecl wsscanf( char* lpBuffer, char* lpFormat, ... )
{
   BYTE          bCoerceShort, bDoneFlag, bLongOne, bMatch, bNegative,
                 bReject, bSuppress ;
   BYTE FAR *    lpPtrScan ;
   DWORD         dwNumber ;
   LPSTR         lpPtrFormat, lpPtrBuffer ;
   LPVOID FAR *  lpArgList;
   LPVOID        lpPointer, lpStart ;
   WORD          wHoldSeg ;
   char          ch, chCom, chLast, chPrev, chRange, szTable[ ASCII ] ; /* Flawfinder: ignore */
   int           nCount, nCharCount, nWidth, nWidthSet, nStarted ;

   wva_list	 lpParms;
   
   wva_start(lpParms, lpFormat);

   lpArgList = (LPVOID FAR *) &lpParms ;

   nCount = nCharCount = 0 ;
   bMatch = FALSE ;
   lpPtrFormat = lpFormat ;
   lpPtrBuffer = lpBuffer ;

   while (*lpPtrFormat)
   {
      if (isspace( *lpPtrFormat ))
      {
         UN_INC( EAT_WHITE() ) ;  // put first non-space char back
         while (isspace(*++lpPtrFormat)) ;
      }
      if ('%' == *lpPtrFormat)
      {
         bCoerceShort = bDoneFlag = bLongOne = bNegative =
         bReject = bSuppress = FALSE ;
         nWidth = nWidthSet = nStarted = 0 ;
         dwNumber = 0 ;
         chPrev = 0 ;
   
         while (!bDoneFlag)
         {
            if (isdigit( chCom = *++lpPtrFormat ))
            {
               ++nWidthSet ;
               nWidth = MUL10( nWidth ) + (chCom - '0') ;
            }
            else
               switch (chCom)
               {
                  case 'F':
                  case 'N':
                     // FAR is only type of pointer in DLLs
                     break ;
   
                  case 'h':
                     ++bCoerceShort ;
                     break ;
            
                  case 'l':
                     ++bLongOne ;
                     break ;
   
                  case '*':
                     ++bSuppress ;
                     break ;
   
                  default:
                     ++bDoneFlag ;
                     break ;
               }
         }
   
         if (!bSuppress)
            /* ALL pointers are pushed as FAR */
            lpPointer = (LPVOID) *lpArgList++ ;
   
         bDoneFlag = FALSE ;
   
         if ('n' != (chCom = (char)(*lpPtrFormat | ('a' - 'A'))))
         {
            if ('c' != chCom && LEFT_BRACKET != chCom)
               ch = EAT_WHITE() ;
            else
               ch = INC() ;
         }
   
         if (!nWidthSet || nWidth)
         {
            switch (chCom)
            {
               case 'c':
                  if (!nWidthSet)
                  {
                     ++nWidthSet ;
                     ++nWidth ;
                  }
                  lpPtrScan = (BYTE FAR *) szCBrackSet  ;
                  --bReject ;
                  goto ScanIt2 ;
   
               case 's':
                  lpPtrScan = (BYTE FAR *) szSBrackSet ;
                  --bReject ;
                  goto ScanIt2 ;
   
               case LEFT_BRACKET:
                  lpPtrScan = (BYTE FAR *) (++lpPtrFormat) ;
                  if ('^' == *lpPtrScan)
                  {
                     ++lpPtrScan ;
                     --bReject ;
                  }
ScanIt2:
                  _fmemset( szTable, 0, ASCII ) ;
   
#ifdef ALLOW_RANGE
                  if (LEFT_BRACKET == chCom)
                     if (']' == *lpPtrScan)
                     {
                        chPrev = ']' ;
                        ++lpPtrScan ;
                        szTable[ ']' >> 3 ] = 1 << (']' & 7 ) ;
                     }
                  while (']' != *lpPtrScan)
                  {
                     chRange = *lpPtrScan++ ;
                     if ('-' != chRange || !chPrev || ']' == *lpPtrScan)
                        szTable[(chPrev = chRange) >> 3] |= 1 << (chRange & 7) ;
                     else
                     {
                        // handle a-z type set
                        chRange = *lpPtrScan++ ;
                        if (chPrev < chRange)
                           chLast = chRange ;
                        else
                        {
                           chLast = chPrev ;
                           chPrev = chRange ;
                        }
                        for (chRange = chPrev; chRange <= chLast; ++chRange)
                           szTable[chRange >> 3] |= 1 << (chRange & 7) ;
                        chPrev = 0 ;
                     }
                  }
#else
                  if (LEFT_BRACKET == chCom)
                     if (']'  == *lpPtrScan)
                     {
                        ++lpPtrScan;
                        szTable[(chPrev = ']') >> 3] |= 1 << (']' & 7) ;
                     }
                  while (']' != *lpPtrScan)
                     szTable[ *lpPtrScan >> 3] |= 1 << (*lpPtrScan & 7) ;
#endif
                  if (!*lpPtrScan)
                     goto ErrorReturn ;