xltmetinf.c

SyncML ToolKits,学习syncml的参考工具包.非常好用.

/*************************************************************************/
/* module:          MetaInf DTD related functions for the en-/decoder    */
/* file:            xltmetinf.c                                          */
/* target system:   all                                                  */
/* target OS:       all                                                  */   
/*************************************************************************/

/*
 * Copyright Notice
 * Copyright (c) Ericsson, IBM, Lotus, Matsushita Communication 
 * Industrial Co., Ltd., Motorola, Nokia, Openwave Systems, Inc., 
 * Palm, Inc., Psion, Starfish Software, Symbian, Ltd. (2001).
 * All Rights Reserved.
 * Implementation of all or part of any Specification may require 
 * licenses under third party intellectual property rights, 
 * including without limitation, patent rights (such a third party 
 * may or may not be a Supporter). The Sponsors of the Specification 
 * are not responsible and shall not be held responsible in any 
 * manner for identifying or failing to identify any or all such 
 * third party intellectual property rights.
 * 
 * THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN ARE PROVIDED 
 * ON AN "AS IS" BASIS WITHOUT WARRANTY OF ANY KIND AND ERICSSON, IBM, 
 * LOTUS, MATSUSHITA COMMUNICATION INDUSTRIAL CO. LTD, MOTOROLA, 
 * NOKIA, PALM INC., PSION, STARFISH SOFTWARE AND ALL OTHER SYNCML 
 * SPONSORS DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING 
 * BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION 
 * HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF 
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 
 * SHALL ERICSSON, IBM, LOTUS, MATSUSHITA COMMUNICATION INDUSTRIAL CO., 
 * LTD, MOTOROLA, NOKIA, PALM INC., PSION, STARFISH SOFTWARE OR ANY 
 * OTHER SYNCML SPONSOR BE LIABLE TO ANY PARTY FOR ANY LOSS OF 
 * PROFITS, LOSS OF BUSINESS, LOSS OF USE OF DATA, INTERRUPTION OF 
 * BUSINESS, OR FOR DIRECT, INDIRECT, SPECIAL OR EXEMPLARY, INCIDENTAL, 
 * PUNITIVE OR CONSEQUENTIAL DAMAGES OF ANY KIND IN CONNECTION WITH 
 * THIS DOCUMENT OR THE INFORMATION CONTAINED HEREIN, EVEN IF ADVISED 
 * OF THE POSSIBILITY OF SUCH LOSS OR DAMAGE.
 * 
 * The above notice and this paragraph must be included on all copies 
 * of this document that are made.
 * 
 */
#include "syncml_tk_prefix_file.h" // %%% luz: needed for precompiled headers in eVC++

#include "define.h"
#ifdef __USE_METINF__

#include "smlmetinfdtd.h"
#include "xlttags.h"
#include "xltmetinf.h"
#include "xlttagtbl.h"
#include "xltenc.h"
#include "xltencwbxml.h"

#include <define.h>
#include <libstr.h>
#include <smlerr.h>
#include <smldtd.h>
#include <libmem.h>
#include <libutil.h>
/* extern */
 extern SML_API void smlFreeMetinfAnchor(SmlMetInfAnchorPtr_t data);
 extern SML_API void smlFreeMetinfMem(SmlMetInfMemPtr_t data);
 extern SML_API void smlFreeMetinfMetinf(SmlMetInfMetInfPtr_t data);


/* decoder callbacks */
Ret_t buildMetInfAnchorCmd(XltDecoderPtr_t pDecoder, VoidPtr_t *ppElem) {
    XltDecScannerPtr_t pScanner;
    SmlMetInfAnchorPtr_t pAnchor;
    Ret_t rc;

    pScanner = pDecoder->scanner;

    if (*ppElem != NULL)
        return SML_ERR_XLT_INVAL_SYNCML_DOC;

    if ((pAnchor = (SmlMetInfAnchorPtr_t)smlLibMalloc(sizeof(SmlMetInfAnchor_t))) == NULL)
        return SML_ERR_NOT_ENOUGH_SPACE;
    smlLibMemset(pAnchor, 0, sizeof(SmlMetInfAnchor_t));

    if (IS_EMPTY(pScanner->curtok)) {
        *ppElem = pAnchor;
        return SML_ERR_OK;
    }

    if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
        smlFreeMetinfAnchor(pAnchor);
        //smlLibFree(pAnchor);
        return rc;
    }

    while (pScanner->curtok->type != TOK_TAG_END) {
        switch (pScanner->curtok->tagid) {
				    /* PCDATA elements */
            case TN_METINF_LAST:
                rc = buildPCData(pDecoder, (VoidPtr_t)&pAnchor->last);
                break;
            case TN_METINF_NEXT:
                rc = buildPCData(pDecoder, (VoidPtr_t)&pAnchor->next);
                break;
            default:
                rc = SML_ERR_XLT_INVAL_SYNCML_DOC;
        }
        if (rc != SML_ERR_OK) {
            smlFreeMetinfAnchor(pAnchor);
            //smlLibFree(pAnchor);
            return rc;
        }
        if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
            smlFreeMetinfAnchor(pAnchor);
            //smlLibFree(pAnchor);
            return rc;
        }
    }
    *ppElem = pAnchor;

    return SML_ERR_OK;
}

Ret_t buildMetInfMemCmd(XltDecoderPtr_t pDecoder, VoidPtr_t *ppElem) {
    XltDecScannerPtr_t pScanner;
    SmlMetInfMemPtr_t pMem;
    Ret_t rc;

    pScanner = pDecoder->scanner;

    if (*ppElem != NULL)
        return SML_ERR_XLT_INVAL_SYNCML_DOC;

    if ((pMem = (SmlMetInfMemPtr_t)smlLibMalloc(sizeof(SmlMetInfMem_t))) == NULL)
        return SML_ERR_NOT_ENOUGH_SPACE;
    smlLibMemset(pMem, 0, sizeof(SmlMetInfMem_t));

    if (IS_EMPTY(pScanner->curtok)) {
        *ppElem = pMem;
        return SML_ERR_OK;
    }

    if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
        smlFreeMetinfMem(pMem);
        //smlLibFree(pMem);
        return rc;
    }

    while (pScanner->curtok->type != TOK_TAG_END) {
        switch (pScanner->curtok->tagid) {
				    /* PCDATA elements */
            case TN_METINF_SHAREDMEM:
                rc = buildPCData(pDecoder, (VoidPtr_t)&pMem->shared);
                break;
            case TN_METINF_FREEMEM:
                rc = buildPCData(pDecoder, (VoidPtr_t)&pMem->free);
                break;
            case TN_METINF_FREEID:
                rc = buildPCData(pDecoder, (VoidPtr_t)&pMem->freeid);
                break;
            default:
                rc = SML_ERR_XLT_INVAL_SYNCML_DOC;
        }
        if (rc != SML_ERR_OK) {
            smlFreeMetinfMem(pMem);
            //smlLibFree(pMem);
            return rc;
        }
        if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
            smlFreeMetinfMem(pMem);
            //smlLibFree(pMem);
            return rc;
        }
    }
    *ppElem = pMem;

    return SML_ERR_OK;
}

Ret_t buildMetInfMetInfCmd(XltDecoderPtr_t pDecoder, VoidPtr_t *ppElem) {
    XltDecScannerPtr_t pScanner;
    SmlMetInfMetInfPtr_t pMeta;
    Ret_t rc;
		int foundWrapper = 0;

    pScanner = pDecoder->scanner;

    if (*ppElem != NULL)
        return SML_ERR_XLT_INVAL_SYNCML_DOC;

    if ((pMeta = (SmlMetInfMetInfPtr_t)smlLibMalloc(sizeof(SmlMetInfMetInf_t))) == NULL)
        return SML_ERR_NOT_ENOUGH_SPACE;
    smlLibMemset(pMeta, 0, sizeof(SmlMetInfMetInf_t));

    if (IS_EMPTY(pScanner->curtok)) {
        *ppElem = pMeta;
        return SML_ERR_OK;
    }

    if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
        smlFreeMetinfMetinf(pMeta);
        //smlLibFree(pMeta);
        return rc;
    }

    while (pScanner->curtok->type != TOK_TAG_END) {
        switch (pScanner->curtok->tagid) {
		  case TN_METINF_METINF: /* ignore - it's just the wrapper tag */
			foundWrapper = 1;
			break;
          case TN_METINF_FORMAT:
            rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->format);
            break;
          case TN_METINF_TYPE:
            rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->type);
            break;
          case TN_METINF_MARK:
            rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->mark);
            break;
          case TN_METINF_SIZE:
            rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->size);
            break;
          case TN_METINF_VERSION:
            rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->version);
            break;
		  case TN_METINF_NEXTNONCE:
			rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->nextnonce);
			break;
		  case TN_METINF_ANCHOR:
			rc = buildMetInfAnchorCmd(pDecoder, (VoidPtr_t)&pMeta->anchor);
			break;
		  case TN_METINF_MAXMSGSIZE:
			rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->maxmsgsize);
			break;
		  /* SCTSTK - 18/03/2002 S.H. 2002-04-05: SyncML 1.1 */
		  case TN_METINF_MAXOBJSIZE:
			rc = buildPCData(pDecoder, (VoidPtr_t)&pMeta->maxobjsize);
			break;
		  case TN_METINF_MEM:
			rc = buildMetInfMemCmd(pDecoder, (VoidPtr_t)&pMeta->mem);
			break;
		  case TN_METINF_EMI:
			rc = buildPCDataList(pDecoder, (VoidPtr_t)&pMeta->emi);
			break;
          default:
              rc = SML_ERR_XLT_INVAL_SYNCML_DOC;
        }
        if (rc != SML_ERR_OK) {
            smlFreeMetinfMetinf(pMeta);
            //smlLibFree(pMeta);
            return rc;
        }
        if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
            smlFreeMetinfMetinf(pMeta);
            //smlLibFree(pMeta);
            return rc;
        }
    }

	if (foundWrapper) { 
		/* Optional Metinf root tag was used in this message.
		 * The actual token is the closing root tag.
		 * It is required that the scanner points to the first tag _after_ 
		 * <MetInf>...</MetInf>, so we just skip to the next token and continue.
		 */
      if (((rc = nextToken(pDecoder)) != SML_ERR_OK)) {
	      smlFreeMetinfMetinf(pMeta);
	      //smlLibFree(pMeta);
        return rc;
      }			
	}
    *ppElem = pMeta;

    return SML_ERR_OK;
}



/* see xltenc.c:XltEncBlock for description of parameters */
Ret_t metinfEncBlock(XltTagID_t tagId, XltRO_t reqOptFlag, const VoidPtr_t pContent, SmlEncoding_t enc, BufferMgmtPtr_t pBufMgr, SmlPcdataExtension_t attFlag) {
	//Return variable
	Ret_t _err;
	SmlPcdataListPtr_t pList = NULL;
	//Check if pContent of a required field is missing
	if ((reqOptFlag == REQUIRED) && (pContent == NULL))
		return SML_ERR_XLT_MISSING_CONT;
	//Check if pContent of a optional field is missing -> if yes we are done
	else if (pContent == NULL)
		return SML_ERR_OK;
  
	//Generate the commands -> see DTD
	switch (tagId) {
	case TN_METINF_ANCHOR:
		if ((_err = xltGenerateTag(TN_METINF_ANCHOR, TT_BEG, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_LAST, OPTIONAL, ((SmlMetInfAnchorPtr_t) pContent)->last, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_NEXT, REQUIRED, ((SmlMetInfAnchorPtr_t) pContent)->next, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = xltGenerateTag(TN_METINF_ANCHOR, TT_END, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		break;
	case TN_METINF_MEM:
		if ((_err = xltGenerateTag(TN_METINF_MEM, TT_BEG, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_SHAREDMEM, OPTIONAL, ((SmlMetInfMemPtr_t) pContent)->shared, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_FREEMEM,   REQUIRED, ((SmlMetInfMemPtr_t) pContent)->free,   enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_FREEID,    REQUIRED, ((SmlMetInfMemPtr_t) pContent)->freeid, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = xltGenerateTag(TN_METINF_MEM, TT_END, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		break;
	case TN_METINF_SHAREDMEM:                  
      //set the flag in the (WB)XML document if the flag is in the pContent
      if ((*((Flag_t *) pContent)) & (SmlMetInfSharedMem_f))
        if ((_err = xltGenerateTag(tagId, TT_ALL, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
      break;
	case TN_METINF_METINF:
		//if ((_err = xltGenerateTag(TN_METINF_METINF, TT_BEG, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_FORMAT,    OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->format, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_TYPE,      OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->type, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_MARK,      OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->mark, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_SIZE,      OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->size, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_ANCHOR,    OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->anchor, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_VERSION,   OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->version, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_NEXTNONCE, OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->nextnonce, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		if ((_err = metinfEncBlock(TN_METINF_MAXMSGSIZE,OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->maxmsgsize, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
    // %%% luz 2003-04-24: added maxobjsize generation (was missing = bug in original RTK 4.1)
		if ((_err = metinfEncBlock(TN_METINF_MAXOBJSIZE,OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->maxobjsize, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		pList = ((SmlMetInfMetInfPtr_t)pContent)->emi;
        while (pList != NULL) {        
            if ((_err = xltEncBlock(TN_METINF_EMI, OPTIONAL, pList->data, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
            pList = pList->next;
        };

		if ((_err = metinfEncBlock(TN_METINF_MEM,       OPTIONAL, ((SmlMetInfMetInfPtr_t) pContent)->mem, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		//if ((_err = xltGenerateTag(TN_METINF_METINF, TT_END, enc, pBufMgr, SML_EXT_METINF)) != SML_ERR_OK) return _err;
		break;
	default: { // all leaf nodes (PCDATA#)
        return xltEncPcdata(tagId, reqOptFlag, pContent, enc, pBufMgr, attFlag);
	 } /* eof default statement from switch tagid */
	} /* eof switch tagid */
	return SML_ERR_OK;
}

#endif /* __USE_METINF__ */