/************************************************************************/
/* SISCO SOFTWARE MODULE HEADER *****************************************/
/************************************************************************/
/*   (c) Copyright Systems Integration Specialists Company, Inc.,	*/
/*     		1999 - 2008, All Rights Reserved		        */
/*									*/
/* MODULE NAME : sx_enc.c   						*/
/* PRODUCT(S)  : 							*/
/*									*/
/* MODULE DESCRIPTION : 						*/
/*									*/
/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE :				*/
/*									*/
/* MODIFICATION LOG :							*/
/*  Date     Who   Rev			Comments			*/
/* --------  ---  ------   -------------------------------------------	*/
/* 01/30/08  EJV     57    Corr slogs (fun names).			*/
/* 10/29/07  JRB     56    strncat_safe obsolete, use strncat_maxstrlen.*/
/* 10/17/06  MDE     55    Added support for unsigned hex ints (32 bit)	*/
/* 02/13/06  DSF     54    Migrate to VS.NET 2005			*/
/* 08/09/05  DWL     53    Handle duration of zero.			*/
/* 01/31/05  DSF     52    Added sxLogOverrunAsFlow to control how	*/
/*			   encode overrun errors are logged		*/
/* 01/19/05  EJV     51    Replaced // comment.				*/
/* 07/14/04  DWL     50    Added handling for Duration type		*/
/* 			   Added encode functions for struct tm type.	*/
/* 03/17/04  EJV     49    Use SISCO types in place of C types.		*/
/* 10/30/03  EJV     48    Added size param to UtcValueToXmlString	*/
/* 10/27/03  RWM     47    Added sx_format_nstring_enc for              */
/*                         sx_wr_nstring                                */
/* 10/27/03  DSF     46    Don't format strings if bUnformattedStrings	*/
/*			   is set					*/ 
/* 10/24/03  DSF     45    Added missing functions			*/
/*			   Fixed SX_DATE_TIME functions			*/
/* 10/13/03  EJV     44    Replaced defined(QNX) with defined(__QNX__).	*/
/* 09/01/03  GLB     43    Added "sx_wr_xtime"                          */
/* 05/15/03  RWM     42    Added support for special characters when    */
/*                         encoding                                     */
/* 03/24/03  DSF     27    Added sx_wrx_nstring, sx_wrx_nstring_el	*/
/* 03/05/02  JRB     26    Add more SD_CONST.				*/
/* 02/25/02  EJV     25    _AIX: replace itoa, ltoa with ANSI sprintf 	*/
/*			   sx_wr_double: repl non-ANSI '%le' with '%e'.	*/
/* 01/21/02  EJV     24    Added support for encoding into a file:	*/
/*			     New sx_start_encodeEx, sx_init_encodeEx.	*/
/*			     Added sx_add_buf and _SX_ADD_BUF.		*/
/*			     Added sx_wr_comment funcs.			*/
/*			     Changed sx_add_string and _SX_ADD_STRING.	*/
/*			     Eliminated _src, _xmlBufEnd ptrs from funs.*/
/* 11/15/01  DGE     23    Added sx_wr_float functions & changed type 	*/
/*			    on sx_wr_double functions to ST_DOUBLE from	*/
/*			    double.					*/
/* 07/02/01  EJV     22    sx_init_encode: memset to 0 the sxEncCtrl.	*/
/* 02/28/01  EJV     21    _AIX: use itoa, ltoa instead of slow sprintf */
/* 02/28/01  MDE     20    Removed bEmptyTag from SX_ENC_CTRL		*/
/* 02/26/01  MDE     19    Make sx_add_string global			*/
/* 02/22/01  MDE     18    Allow QNX & Win32 to use itoa, ltoa		*/
/* 01/24/01  EJV     17    Replaced non-ANSI itoa, ltoa with sprintf.	*/
/*			   Replaced "%ud" with "%u".			*/ 
/* 01/22/01  DWL     16    Created global var sxUseFormatting		*/
/* 01/05/01  EJV     15    sx_wr_ulong: changed "%ul" to "%lu".		*/
/* 01/02/01  DWL     14    Removed UIB_DEFINED check			*/
/* 11/06/00  DWL     13    Modified sx_write_element and sx_end_element	*/
/*                         to handle <starttag>data<endtag> syntax	*/
/* 11/02/00  MDE     12    Changed attribute handling a bit		*/
/* 10/31/00  MDE     11    Significant rewrite				*/
/* 10/11/00  KCR     10    Fixed xmlBufLen calc. because of CDATA	*/
/* 09/01/00  MDE     09    Now handle large strings better		*/
/* 08/15/00  DWL     08    Added check for UIB_DEFINED, fixed support 	*/
/*			   for multiple attributes			*/
/* 07/20/00  DWL     07    Added formatting option, code optimizations 	*/
/* 04/12/00  MDE     06    Changes for V1.00P2 release 			*/
/* 03/23/00  DWL     05    Format XML with CRLF and tabs	        */
/* 03/21/00  DWL     04    Removed includes already in sysincs	        */
/* 03/21/00  DWL     03    Changed sx_wr_string_el to accept attributes */
/* 03/17/00  DWL     02    Changed sx_wr_string_el to skip empty strings*/
/* 09/15/99          01    Module created				*/
/************************************************************************/

#if defined (_WIN32)
#pragma warning(disable : 4996)
#endif

#include "glbtypes.h"
#include "sysincs.h"
#include "mem_chk.h"
#include "time_str.h"
#include "str_util.h"
#include "sx_defs.h"
#include "sx_log.h"

/************************************************************************/
/* For debug version, use a static pointer to avoid duplication of 	*/
/* __FILE__ strings.							*/

#ifdef DEBUG_SISCO
SD_CONST static ST_CHAR *SD_CONST thisFileName = __FILE__;
#endif


/************************************************************************/
ST_BOOLEAN sxUseFormatting;
ST_BOOLEAN sxLogOverrunAsFlow;
/************************************************************************/

#if 0
			/* to increase speed we prefer not to call functions */
#define _SX_ADD_BUF(_src, _srcLen) sx_add_buf (sxEncCtrl, _src, _srcLen, &_writePos)
#define _SX_ADD_STRING(_src)       sx_add_string (sxEncCtrl, _src, &_writePos)

#else

#define _SX_ADD_BUF(_src, _srcLen)\
  {\
  if (sxEncCtrl->useFp)\
    {\
    if (fwrite( _src, sizeof( ST_CHAR ), _srcLen, sxEncCtrl->fp) != (ST_UINT) _srcLen)\
      {\
      sxEncCtrl->errCode = SD_FAILURE;\
      SXLOG_ERR0 ("XML encode file write error");\
      return;\
      }\
    }\
  else\
    {\
    if (_writePos + _srcLen >= sxEncCtrl->xmlBufEnd)\
      {\
      sxEncCtrl->errCode = SX_XML_BUFFER_OVER_MAX;\
      if (sxLogOverrunAsFlow)\
        SXLOG_FLOW0 ("XML encode buffer overrun");\
      else\
        SXLOG_ERR0 ("XML encode buffer overrun");\
      return;\
      }\
    else\
      {\
      memcpy (_writePos, _src, _srcLen);\
      _writePos += _srcLen;\
      *_writePos = 0;\
      }\
    }\
  }

#define _SX_ADD_STRING(_src)  _SX_ADD_BUF(_src, strlen(_src))
#endif


/************************************************************************/
/*			sx_add_string					*/
/************************************************************************/

ST_VOID sx_add_string (SX_ENC_CTRL *sxEncCtrl, SD_CONST ST_CHAR *_src,
                       ST_CHAR **writePosIo)
  {
  sx_add_buf (sxEncCtrl, _src,  strlen(_src), writePosIo);
  }

/************************************************************************/
/*			sx_add_buf					*/
/************************************************************************/

ST_RET sx_add_buf (SX_ENC_CTRL *sxEncCtrl, SD_CONST ST_CHAR *_src,  ST_INT _srcLen,
                    ST_CHAR **writePosIo)
  {
ST_CHAR *_writePos;

  if (sxEncCtrl->useFp)
    {
    if (fwrite( _src, sizeof( ST_CHAR ), _srcLen, sxEncCtrl->fp) != (ST_UINT) _srcLen)
      {
      sxEncCtrl->errCode = SD_FAILURE;
      SXLOG_ERR0 ("XML encode file write error");
      return (SD_FAILURE);
      }
    }
  else
    {
    _writePos = *writePosIo;
    if (_writePos + _srcLen >= sxEncCtrl->xmlBufEnd)
      {
      sxEncCtrl->errCode = SX_XML_BUFFER_OVER_MAX;
      if (sxLogOverrunAsFlow)
        SXLOG_FLOW0 ("XML encode buffer overrun");
      else
        SXLOG_ERR0 ("XML encode buffer overrun");
      return (SD_FAILURE);
      }
    else
      {
      memcpy (_writePos, _src, _srcLen);
      _writePos += _srcLen;
      *_writePos = 0;		/* need string termination for logging */
      }
    *writePosIo = _writePos; 
    }
  return (SD_SUCCESS);
  }

/************************************************************************/
/*			sx_start_encode 				*/
/************************************************************************/

SX_ENC_CTRL *sx_start_encode (ST_CHAR *xmlBuf, ST_INT xmlBufLen)
  {
SX_ENC_CTRL *sxEncCtrl;

  sxEncCtrl = (SX_ENC_CTRL *) M_CALLOC (NULL, 1, sizeof (SX_ENC_CTRL));
  sx_init_encode (sxEncCtrl, xmlBuf, xmlBufLen);
  return (sxEncCtrl);
  }


/************************************************************************/
/*			sx_start_encodeEx 				*/
/************************************************************************/

SX_ENC_CTRL *sx_start_encodeEx (ST_CHAR *fileName)
  {
SX_ENC_CTRL *sxEncCtrl;

  sxEncCtrl = (SX_ENC_CTRL *) M_CALLOC (NULL, 1, sizeof (SX_ENC_CTRL));
  if (sx_init_encodeEx (sxEncCtrl, fileName) != SD_SUCCESS)
    {
    M_FREE (NULL, sxEncCtrl);
    sxEncCtrl = NULL;
    }
  return (sxEncCtrl);
  }

/************************************************************************/
/*			sx_init_encode 					*/
/************************************************************************/

ST_VOID sx_init_encode (SX_ENC_CTRL *sxEncCtrl, 
			ST_CHAR *xmlBuf, ST_INT xmlBufLen)
  {
  /* sxEncCtrl must be cleared before usage */
  memset (sxEncCtrl, 0, sizeof(SX_ENC_CTRL));
  sxEncCtrl->xmlBufLen = xmlBufLen;
  sxEncCtrl->xmlBuf = xmlBuf;
  sxEncCtrl->xmlBufEnd = xmlBuf + xmlBufLen;
  sxEncCtrl->useFp = SD_FALSE;
  sxEncCtrl->nextWritePos = xmlBuf;
  sxEncCtrl->currNestLevel = 0;

  sxEncCtrl->errCode = SD_SUCCESS;
  sxEncCtrl->bUseFormatting = sxUseFormatting;
  SXLOG_ENC0 ("Initialized XML Encode");
  }

/************************************************************************/
/*			sx_init_encodeEx 					*/
/************************************************************************/

ST_RET sx_init_encodeEx (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *fileName)
  {
FILE *fp;

  if ((fp = fopen (fileName, "w")) == NULL)
    {
    SXLOG_ERR2 ("XML File (%s) Open Error (errno=%d)", fileName, errno);
    return (SD_FAILURE);
    }

   /* sxEncCtrl must be cleared before usage */
  memset (sxEncCtrl, 0, sizeof(SX_ENC_CTRL));
  sxEncCtrl->xmlBufLen = 0;
  sxEncCtrl->xmlBuf = NULL;
  sxEncCtrl->xmlBufEnd = NULL;
  sxEncCtrl->useFp = SD_TRUE;
  sxEncCtrl->fp = fp;
  sxEncCtrl->nextWritePos = NULL;
  sxEncCtrl->currNestLevel = 0;

  sxEncCtrl->errCode = SD_SUCCESS;
  sxEncCtrl->bUseFormatting = sxUseFormatting;
  SXLOG_ENC1 ("Initialized XML Encode to file '%s'", fileName);

  return (SD_SUCCESS);
  }

/************************************************************************/
/*			sx_end_encode 					*/
/************************************************************************/

ST_VOID sx_end_encode (SX_ENC_CTRL *sxEncCtrl)
  {
ST_LONG xmlLen;

  if (sxEncCtrl->useFp)
    {
    if (sxEncCtrl->fp)
      fclose (sxEncCtrl->fp);
    if (sxEncCtrl->errCode == SD_SUCCESS)
      {
      SXLOG_FLOW0 ("Encode XML to file complete.");
      }
    }
  else
    {
    /* encoding into buffer */
    if (sxEncCtrl->errCode == SD_SUCCESS)
      {
      xmlLen = sxEncCtrl->nextWritePos - sxEncCtrl->xmlBuf;
      SXLOG_FLOW0 ("Encode XML Complete:");
      SXLOG_FLOWH (xmlLen, sxEncCtrl->xmlBuf);
      }
    }
  M_FREE (NULL, sxEncCtrl);
  }

/************************************************************************/
/*			sx_end_element 					*/
/************************************************************************/

ST_VOID sx_end_element (SX_ENC_CTRL *sxEncCtrl)
  {
ST_CHAR *tag;

  if (sxEncCtrl->errCode == 0)
    {
    --sxEncCtrl->currNestLevel;
    tag = sxEncCtrl->tags[sxEncCtrl->currNestLevel];
    sx_write_element (sxEncCtrl, tag, 0, NULL, SD_TRUE, SD_FALSE);
    }
  }

/************************************************************************/
/*			sx_write_element 				*/
/************************************************************************/

ST_VOID sx_write_element (SX_ENC_CTRL *sxEncCtrl, SD_CONST ST_CHAR *tag, 
			   ST_INT numAttr, SXE_ATTR_PAIR *attr, 
			   ST_BOOLEAN end, ST_BOOLEAN empty)
  {
ST_INT i;
ST_CHAR *_writePos;
ST_CHAR tabBuf[SX_MAX_XML_NEST+1];
ST_CHAR attrValFormatted [8192];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    if (sxEncCtrl->bUseFormatting)
      {
      if (!sxEncCtrl->bOneLineEl || (sxEncCtrl->bOneLineEl && !end))
	{
	for (i = 0; i < sxEncCtrl->currNestLevel; i++)
          tabBuf[i] = '\t';		/* assemble all tabs in buffer	*/
        _SX_ADD_BUF (tabBuf, sxEncCtrl->currNestLevel);
	}
      }

    _SX_ADD_BUF ("<", 1);
    if (end == SD_TRUE)
      _SX_ADD_BUF ("/", 1);
    _SX_ADD_STRING (tag);

    for (i = 0; i < numAttr; ++i, ++attr)
      {
      _SX_ADD_BUF (" ", 1);
      _SX_ADD_STRING (attr->name);
      _SX_ADD_BUF ("=", 1);
      _SX_ADD_BUF ("\"", 1);
      sx_format_string_enc (attrValFormatted, attr->value);
      _SX_ADD_STRING (attrValFormatted);
      _SX_ADD_BUF ("\"", 1);
      }

    if (empty == SD_TRUE)
      _SX_ADD_BUF ("/", 1);

    _SX_ADD_BUF (">", 1);
    if (sxEncCtrl->bUseFormatting)
      {
      if (!sxEncCtrl->bOneLineEl || (sxEncCtrl->bOneLineEl && end))
	_SX_ADD_BUF ("\n", 1);
      }

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_write_element: %s", sxEncCtrl->nextWritePos);
      }

    if (empty != SD_TRUE && end != SD_TRUE)
      {
      strcpy (sxEncCtrl->tags[sxEncCtrl->currNestLevel], tag);
      ++sxEncCtrl->currNestLevel;
      }
    sxEncCtrl->nextWritePos = _writePos;
    sxEncCtrl->bOneLineEl = SD_FALSE;
    }
  }

/************************************************************************/
/*			sx_wr_string 					*/
/************************************************************************/

ST_VOID sx_wr_string (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *str)
  {
ST_CHAR *_writePos;
ST_CHAR strFormatted [8192];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    if (!sxEncCtrl->bUnformattedStrings)
      {
      sx_format_string_enc (strFormatted, str);
      _SX_ADD_STRING (strFormatted);
      }
    else
      _SX_ADD_STRING (str);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_string: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_string_el 					*/
/************************************************************************/

ST_VOID sx_wrx_string_el (SX_ENC_CTRL *sxEncCtrl, SD_CONST ST_CHAR *tag, ST_CHAR *str, 
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)

  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);
  sx_wr_string (sxEncCtrl, str);
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_nstring 					*/
/************************************************************************/

ST_VOID sx_wr_nstring (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *str, ST_INT len)
  {
ST_CHAR *_writePos;
ST_CHAR strFormatted [8192];
ST_INT  formattedLen;

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    if (!sxEncCtrl->bUnformattedStrings)
      {
      sx_format_nstring_enc (strFormatted, str, len);
      formattedLen = strlen (strFormatted);
      _SX_ADD_BUF (strFormatted, formattedLen);
      }
    else
      _SX_ADD_BUF (str, len);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_nstring: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_string_el 				*/
/************************************************************************/

ST_VOID sx_wrx_nstring_el (SX_ENC_CTRL *sxEncCtrl, SD_CONST ST_CHAR *tag, ST_CHAR *str, ST_INT len,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)

  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);
  sx_wr_nstring (sxEncCtrl, str, len);
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_bitstring					*/
/************************************************************************/

ST_VOID sx_wr_bitstring (SX_ENC_CTRL *sxEncCtrl, ST_INT numBits, 
						 ST_UINT8 *bitStr)
  {
ST_CHAR *_writePos;
ST_UINT8 bitMask;
ST_UINT8 *bytePtr;
ST_INT i;

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;

    bitMask = 0x80;
    bytePtr = bitStr;
    for (i = 0; i < numBits; ++i)
      {
      if (*bytePtr & bitMask)
        {
        _SX_ADD_BUF ("1", 1);
        }
      else
        {
        _SX_ADD_BUF ("0", 1);
        }
    
      if (bitMask == 0x01)
        {
        bitMask = 0x80;
        ++bytePtr;
        }
      else
        bitMask = bitMask >> 1;
      }  

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_bitstring: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_bitstring_el 					*/
/************************************************************************/

ST_VOID sx_wrx_bitstring_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, 
			 ST_INT numBits, ST_UINT8 *bitStr,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_bitstring (sxEncCtrl, numBits, bitStr);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_int 					*/
/************************************************************************/

ST_VOID sx_wr_int (SX_ENC_CTRL *sxEncCtrl, ST_INT val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
#if defined(_WIN32) || defined(__QNX__)
    itoa (val, strVal, 10);
#else
    sprintf (strVal, "%d", val);
#endif
    _writePos = sxEncCtrl->nextWritePos;
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_int: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_int_el 					*/
/************************************************************************/

ST_VOID sx_wrx_int_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_INT val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_int (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_uint 					*/
/************************************************************************/

ST_VOID sx_wr_uint (SX_ENC_CTRL *sxEncCtrl, ST_UINT val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    sprintf (strVal, "%u", val);
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_uint: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_uint_el 					*/
/************************************************************************/

ST_VOID sx_wrx_uint_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_UINT val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_uint (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_ulong 					*/
/************************************************************************/

ST_VOID sx_wr_ulong (SX_ENC_CTRL *sxEncCtrl, ST_ULONG val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    sprintf (strVal, "%lu", val);
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_ulong: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_ulong_el					*/
/************************************************************************/

ST_VOID sx_wrx_ulong_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_ULONG val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_ulong (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_uint32_hex					*/
/************************************************************************/

ST_VOID sx_wr_uint32_hex (SX_ENC_CTRL *sxEncCtrl, ST_UINT32 val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    sprintf (strVal, "0x%08lx", val);
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_uint32_hex: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }
/************************************************************************/
/*		     sx_wrx_uint32_hex_el  				*/
/************************************************************************/

ST_VOID sx_wrx_uint32_hex_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_UINT32 val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_uint32_hex (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/************************************************************************/
/*			sx_wr_double 					*/
/************************************************************************/

ST_VOID sx_wr_double (SX_ENC_CTRL *sxEncCtrl, ST_DOUBLE val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    sprintf (strVal, "%e", val);
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_double: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_double_el				*/
/************************************************************************/

ST_VOID sx_wrx_double_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_DOUBLE val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_double (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/************************************************************************/
/*			sx_wr_float 					*/
/************************************************************************/

ST_VOID sx_wr_float (SX_ENC_CTRL *sxEncCtrl, ST_FLOAT val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    sprintf (strVal, "%f", val);
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_float: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_float_el					*/
/************************************************************************/

ST_VOID sx_wrx_float_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_FLOAT val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_float (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/************************************************************************/
/*			sx_wr_long 					*/
/************************************************************************/

ST_VOID sx_wr_long (SX_ENC_CTRL *sxEncCtrl, ST_LONG val)
  {
ST_CHAR *_writePos;
ST_CHAR strVal[100];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
#if defined(_WIN32) || defined(__QNX__)
    ltoa (val, strVal, 10);
#else
    sprintf (strVal,"%ld", val);
#endif
    _SX_ADD_STRING (strVal);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_long: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_long_el 					*/
/************************************************************************/

ST_VOID sx_wrx_long_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_LONG val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_long (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/************************************************************************/
/*			sx_wr_bool 					*/
/************************************************************************/

ST_VOID sx_wr_bool (SX_ENC_CTRL *sxEncCtrl, ST_BOOLEAN val)
  {
ST_CHAR *_writePos;

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    if (val != SD_FALSE)
      {
      _SX_ADD_BUF ("1", 1);
      }
    else
      {
      _SX_ADD_BUF ("0", 1);
      }

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_bool: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_bool_el 					*/
/************************************************************************/
ST_VOID sx_wrx_bool_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, ST_BOOLEAN val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_bool (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/************************************************************************/
/************************************************************************/
/*			sx_wr_time 					*/
/************************************************************************/
#define SX_MAX_TIME_STRING_LEN 30
ST_CHAR *sxTimeFormatStr = "%m-%d-%Y %H:%M:%S";

ST_VOID sx_wr_time (SX_ENC_CTRL *sxEncCtrl, time_t val)
  {
ST_CHAR *_writePos;
ST_CHAR timeStr[50];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    strftime (timeStr, SX_MAX_TIME_STRING_LEN, sxTimeFormatStr, localtime (&val));
    _SX_ADD_STRING (timeStr);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_time: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wr_tm 					*/
/************************************************************************/

ST_VOID sx_wr_tm (SX_ENC_CTRL *sxEncCtrl, struct tm *val)
  {
ST_CHAR *_writePos;
ST_CHAR timeStr[50];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;
    strftime (timeStr, SX_MAX_TIME_STRING_LEN, sxTimeFormatStr, val);
    _SX_ADD_STRING (timeStr);

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_tm: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*                       XmlDurationToString 				*/
/************************************************************************/

ST_RET XmlDurationToString (ST_CHAR *buffer, ST_LONG size, SX_DURATION *sxDuration)
  {
ST_CHAR temp[256];
ST_BOOLEAN dateMemberFound = SD_FALSE;
ST_BOOLEAN timeMemberFound = SD_FALSE;
  /* convert duration information stored in           */
  /* "SX_DURATION" structure to an xml string         */
  /* Use strncat_maxstrlen to avoid buffer overrun    */
  if (sxDuration->negative == SD_TRUE)
    strncpy_safe( buffer, "-P", size - 1 );
  else
    strncpy_safe( buffer, "P", size - 1 );

  if (sxDuration->years > 0 || 
      sxDuration->months > 0 ||
      sxDuration->days > 0)
    dateMemberFound = SD_TRUE;

  if (sxDuration->years > 0)
    {
    sprintf( temp, "%dY", sxDuration->years );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }
  if (sxDuration->months > 0)
    {
    sprintf( temp, "%dM", sxDuration->months );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    
  if (sxDuration->days > 0)
    {
    sprintf( temp, "%dD", sxDuration->days );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    

  if (sxDuration->hours > 0 ||
      sxDuration->minutes > 0 ||
      sxDuration->seconds > 0 ||
      sxDuration->microseconds > 0)
    {
    timeMemberFound = SD_TRUE;
    sprintf( temp, "T" );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }

  if (sxDuration->hours > 0)
    {
    sprintf( temp, "%dH", sxDuration->hours );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    
  if (sxDuration->minutes > 0)
    {
    sprintf( temp, "%dM", sxDuration->minutes );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    
  if (sxDuration->seconds > 0)
    {
    sprintf( temp, "%d", sxDuration->seconds );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    
  if (sxDuration->microseconds > 0)
    {
    if (sxDuration->seconds > 0)
      sprintf( temp, ".%06ld", sxDuration->microseconds );
    else
      sprintf( temp, "0.%06ld", sxDuration->microseconds );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    
  if (sxDuration->seconds > 0 || sxDuration->microseconds > 0)
    {
    sprintf( temp, "S" );
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    

  if (dateMemberFound == SD_FALSE && timeMemberFound == SD_FALSE)
    {
    sprintf( temp, "T0S" ); /* 0 seconds = duration of zero */
    strncat_maxstrlen( buffer, temp, size - 1 );
    }    

  return (SD_SUCCESS);
  }

/************************************************************************/
/*                       sx_wr_duration					*/
/************************************************************************/
/* Convert a SX_DURATION structure into a text string, and store it in	*/
/* control structure for output to an XML file.  The string		*/
/* looks like the following: PnYnMnDTnHnMnS where n are the various	*/
/* values, P = period, Y = years, M = months, D = days, T = date/time	*/
/* seperator, H = hours, M = minutes, S = seconds.  Seconds may be a	*/
/* decimal number of arbitrary precisions.				*/
/* Ex: P12Y10M2DT0H40M27.87S						*/
/* Ex: P12Y10M2DT40M27.87S						*/
/************************************************************************/

ST_VOID sx_wr_duration (SX_ENC_CTRL *sxEncCtrl, SX_DURATION *sxDuration)
  {
ST_RET rc;
ST_CHAR *_writePos;
ST_CHAR buffer[100]; /* arbitrary size */
		
  if (sxEncCtrl->errCode != 0)
    return;

  rc = XmlDurationToString (buffer, sizeof(buffer), sxDuration);

  /* place newly created date/time string in xml encode structure */
  _writePos = sxEncCtrl->nextWritePos;
  _SX_ADD_STRING (buffer);

  if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
    {
    SLOGCALWAYS1 ("sx_wr_duration: %s", sxEncCtrl->nextWritePos);
    }
  sxEncCtrl->nextWritePos = _writePos;
  }

/************************************************************************/
/*                       sx_wr_xtime					*/
/************************************************************************/
/* Using the date and time data in the "SX_DATE_TIME" structure convert */
/* the number of seconds from 1/1/1970 (UTC time), the decimal fraction */
/* of microseconds if specified and the number of minutes in the        */
/* time zone offset if specified to a date and time string.             */
/* The string is stored in an encode structure for output to an xml     */
/* file.                                                                */
/************************************************************************/

ST_VOID sx_wr_xtime (SX_ENC_CTRL *sxEncCtrl, SX_DATE_TIME *sxDateTime)
  {
ST_RET rc;
ST_CHAR *_writePos;
ST_CHAR dateTimeStr[MAX_TIME_STRING_LEN];
		
  if (sxEncCtrl->errCode != 0)
    return;
    
  /* convert date and time information stored in     */
  /* "SX_DATE_TIME" structure to an xml string       */
  rc = UtcValueToXmlString (dateTimeStr, sizeof(dateTimeStr), sxDateTime);
  if (rc != SD_SUCCESS)
    {
    SXLOG_NERR0 ("ERROR: Value to String date/time conversion ");
    sxEncCtrl->errCode = SD_FAILURE;
    return;
    }

  /* place newly created date/time string in xml encode structure */
  _writePos = sxEncCtrl->nextWritePos;
  _SX_ADD_STRING (dateTimeStr);

  if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
    {
    SLOGCALWAYS1 ("sx_wr_xtime: %s", sxEncCtrl->nextWritePos);
    }
  sxEncCtrl->nextWritePos = _writePos;
  }

/************************************************************************/
/*			sx_wrx_duration_el 				*/
/************************************************************************/

ST_VOID sx_wrx_duration_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, SX_DURATION *val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_duration (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wrx_xtime_el 				*/
/************************************************************************/

ST_VOID sx_wrx_xtime_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, SX_DATE_TIME *val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_xtime (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }


/************************************************************************/
/*			sx_wrx_time_el 					*/
/************************************************************************/

ST_VOID sx_wrx_time_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, time_t val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_time (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wrx_tm_el 					*/
/************************************************************************/

ST_VOID sx_wrx_tm_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, struct tm *val,
			 ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_tm (sxEncCtrl, val);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }

/************************************************************************/
/*			sx_wr_cdata 					*/
/************************************************************************/

ST_VOID sx_wr_cdata (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *str, ST_INT len)
  {
ST_INT i;
ST_CHAR *_writePos;
ST_CHAR tabBuf[SX_MAX_XML_NEST+1];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;

    if (sxEncCtrl->bUseFormatting)
      {
      for (i = 0; i < sxEncCtrl->currNestLevel; i++)
        tabBuf[i] = '\t';		/* assemble all tabs in buffer	*/
      _SX_ADD_BUF (tabBuf, sxEncCtrl->currNestLevel);
      }

    _SX_ADD_BUF ("<![CDATA[", 9);
    _SX_ADD_BUF (str, len);
    _SX_ADD_BUF ("]]>", 3);
    
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_wrx_cdata_el 					*/
/************************************************************************/

ST_VOID sx_wrx_cdata_el (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *tag, 
			ST_CHAR *str, ST_INT len,
			ST_INT numAttr, SXE_ATTR_PAIR *attr)
  {
  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_write_element (sxEncCtrl, tag, numAttr, attr, SD_FALSE, SD_FALSE);

  sx_wr_cdata (sxEncCtrl, str, len);

  sxEncCtrl->bOneLineEl = SD_TRUE;
  sx_end_element (sxEncCtrl);
  }


/************************************************************************/
/*			sx_wr_comment 					*/
/************************************************************************/

ST_VOID sx_wr_comment (SX_ENC_CTRL *sxEncCtrl, ST_CHAR *str)
  {
ST_INT i;
ST_CHAR *_writePos;
ST_INT    writeLen;
ST_CHAR tabBuf[SX_MAX_XML_NEST+1];

  if (sxEncCtrl->errCode == 0)
    {
    _writePos = sxEncCtrl->nextWritePos;

    if (sxEncCtrl->bUseFormatting)
      {
      for (i = 0; i < sxEncCtrl->currNestLevel; i++)
        tabBuf[i] = '\t';		/* assemble all tabs in buffer	*/
      _SX_ADD_BUF (tabBuf, sxEncCtrl->currNestLevel);
      }
       
    _SX_ADD_BUF ("<!--", 4);
    /* check if there is NL char at the end of string */
    writeLen = strlen(str);
    if (str[writeLen-1] == '\n')
      {
      /* NL present, we will write it after the end of comment */
      --writeLen;
      _SX_ADD_BUF (str, writeLen);
      _SX_ADD_BUF ("-->\n", 4);
      }
    else
      {
      _SX_ADD_BUF (str, writeLen);
      _SX_ADD_BUF ("-->", 3);
      }

    if (!sxEncCtrl->useFp && (sx_debug_sel & SX_LOG_ENC))
      {
      SLOGCALWAYS1 ("sx_wr_comment: %s", sxEncCtrl->nextWritePos);
      }
    sxEncCtrl->nextWritePos = _writePos;
    }
  }

/************************************************************************/
/*			sx_format_string_enc 				*/
/************************************************************************/

ST_VOID sx_format_string_enc (ST_CHAR *dest, ST_CHAR *src)
  {
  ST_CHAR *srcPtr = src;
  ST_CHAR *destPtr = dest;

  *destPtr = '\0';

  while (*srcPtr != '\0')
    {
    switch (*srcPtr)
      {
      case CHAR_APOS:
        strcat (destPtr, CODE_APOS);
        destPtr += CODE_APOS_LEN;
      break;

      case CHAR_QUOT:
        strcat (destPtr, CODE_QUOT);
        destPtr += CODE_QUOT_LEN;
      break;

      case CHAR_AMP:
        strcat (destPtr, CODE_AMP);
        destPtr += CODE_AMP_LEN;
      break;

      case CHAR_LT:
        strcat (destPtr, CODE_LT);
        destPtr += CODE_LT_LEN;
      break;

      case CHAR_GT:
        strcat (destPtr, CODE_GT);
        destPtr += CODE_GT_LEN;
      break;

      default:
        *destPtr = *srcPtr;
        *(destPtr + 1) = '\0';
        destPtr++;
      break;
      }

    srcPtr++;
    }
  }

/************************************************************************/
/*			sx_format_nstring_enc 				*/
/************************************************************************/

ST_VOID sx_format_nstring_enc (ST_CHAR *dest, ST_CHAR *src, ST_INT len)
  {
  ST_CHAR *srcPtr = src;
  ST_CHAR *destPtr = dest;
  ST_INT i = 0;

  *destPtr = '\0';

  while (i++ < len)
    {
    switch (*srcPtr)
      {
      case CHAR_APOS:
        strcat (destPtr, CODE_APOS);
        destPtr += CODE_APOS_LEN;
      break;

      case CHAR_QUOT:
        strcat (destPtr, CODE_QUOT);
        destPtr += CODE_QUOT_LEN;
      break;

      case CHAR_AMP:
        strcat (destPtr, CODE_AMP);
        destPtr += CODE_AMP_LEN;
      break;

      case CHAR_LT:
        strcat (destPtr, CODE_LT);
        destPtr += CODE_LT_LEN;
      break;

      case CHAR_GT:
        strcat (destPtr, CODE_GT);
        destPtr += CODE_GT_LEN;
      break;

      default:
        *destPtr = *srcPtr;
        *(destPtr + 1) = '\0';
        destPtr++;
      break;
      }

    srcPtr++;
    }
  }