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/*
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* wordole.c
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* Copyright (C) 1998-2004 A.J. van Os; Released under GPL
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*
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* Description:
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* Deal with the OLE internals of a MS Word file
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*/
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#include <string.h>
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#include "antiword.h"
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/* Private type for Property Set Storage entries */
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typedef struct pps_entry_tag {
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ULONG ulNext;
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ULONG ulPrevious;
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ULONG ulDir;
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ULONG ulSB;
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ULONG ulSize;
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int iLevel;
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char szName[32];
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UCHAR ucType;
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} pps_entry_type;
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/* Show that a PPS number or index should not be used */
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#define PPS_NUMBER_INVALID 0xffffffffUL
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/* Macro to make sure all such statements will be identical */
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#define FREE_ALL() \
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do {\
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vDestroySmallBlockList();\
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aulRootList = xfree(aulRootList);\
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aulSbdList = xfree(aulSbdList);\
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aulBbdList = xfree(aulBbdList);\
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aulSBD = xfree(aulSBD);\
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aulBBD = xfree(aulBBD);\
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} while(0)
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/*
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* ulReadLong - read four bytes from the given file and offset
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*/
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static ULONG
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ulReadLong(FILE *pFile, ULONG ulOffset)
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{
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UCHAR aucBytes[4];
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fail(pFile == NULL);
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if (!bReadBytes(aucBytes, 4, ulOffset, pFile)) {
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werr(1, "Read long 0x%lx not possible", ulOffset);
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}
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return ulGetLong(0, aucBytes);
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} /* end of ulReadLong */
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/*
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* vName2String - turn the name into a proper string.
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*/
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static void
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vName2String(char *szName, const UCHAR *aucBytes, size_t tNameSize)
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{
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char *pcChar;
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size_t tIndex;
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fail(aucBytes == NULL || szName == NULL);
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if (tNameSize < 2) {
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szName[0] = '\0';
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return;
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}
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for (tIndex = 0, pcChar = szName;
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tIndex < 2 * tNameSize;
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tIndex += 2, pcChar++) {
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*pcChar = (char)aucBytes[tIndex];
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}
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szName[tNameSize - 1] = '\0';
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} /* end of vName2String */
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/*
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* tReadBlockIndices - read the Big/Small Block Depot indices
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*
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* Returns the number of indices read
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*/
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static size_t
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tReadBlockIndices(FILE *pFile, ULONG *aulBlockDepot,
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size_t tMaxRec, ULONG ulOffset)
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{
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size_t tDone;
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int iIndex;
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UCHAR aucBytes[BIG_BLOCK_SIZE];
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fail(pFile == NULL || aulBlockDepot == NULL);
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fail(tMaxRec == 0);
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/* Read a big block with BBD or SBD indices */
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if (!bReadBytes(aucBytes, BIG_BLOCK_SIZE, ulOffset, pFile)) {
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werr(0, "Reading big block from 0x%lx is not possible",
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ulOffset);
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return 0;
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}
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/* Split the big block into indices, an index is four bytes */
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tDone = min(tMaxRec, (size_t)BIG_BLOCK_SIZE / 4);
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for (iIndex = 0; iIndex < (int)tDone; iIndex++) {
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aulBlockDepot[iIndex] = ulGetLong(4 * iIndex, aucBytes);
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NO_DBG_DEC(aulBlockDepot[iIndex]);
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}
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return tDone;
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} /* end of tReadBlockIndices */
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/*
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* bGetBBD - get the Big Block Depot indices from the index-blocks
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*/
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static BOOL
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bGetBBD(FILE *pFile, const ULONG *aulDepot, size_t tDepotLen,
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ULONG *aulBBD, size_t tBBDLen)
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{
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ULONG ulBegin;
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size_t tToGo, tDone;
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int iIndex;
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fail(pFile == NULL || aulDepot == NULL || aulBBD == NULL);
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DBG_MSG("bGetBBD");
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tToGo = tBBDLen;
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for (iIndex = 0; iIndex < (int)tDepotLen && tToGo != 0; iIndex++) {
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ulBegin = (aulDepot[iIndex] + 1) * BIG_BLOCK_SIZE;
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NO_DBG_HEX(ulBegin);
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tDone = tReadBlockIndices(pFile, aulBBD, tToGo, ulBegin);
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fail(tDone > tToGo);
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if (tDone == 0) {
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return FALSE;
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}
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aulBBD += tDone;
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tToGo -= tDone;
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}
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return tToGo == 0;
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} /* end of bGetBBD */
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/*
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* bGetSBD - get the Small Block Depot indices from the index-blocks
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*/
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static BOOL
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bGetSBD(FILE *pFile, const ULONG *aulDepot, size_t tDepotLen,
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ULONG *aulSBD, size_t tSBDLen)
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{
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ULONG ulBegin;
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size_t tToGo, tDone;
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int iIndex;
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fail(pFile == NULL || aulDepot == NULL || aulSBD == NULL);
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DBG_MSG("bGetSBD");
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tToGo = tSBDLen;
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for (iIndex = 0; iIndex < (int)tDepotLen && tToGo != 0; iIndex++) {
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fail(aulDepot[iIndex] >= ULONG_MAX / BIG_BLOCK_SIZE);
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ulBegin = (aulDepot[iIndex] + 1) * BIG_BLOCK_SIZE;
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NO_DBG_HEX(ulBegin);
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tDone = tReadBlockIndices(pFile, aulSBD, tToGo, ulBegin);
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fail(tDone > tToGo);
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if (tDone == 0) {
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return FALSE;
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}
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aulSBD += tDone;
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tToGo -= tDone;
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}
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return tToGo == 0;
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} /* end of bGetSBD */
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/*
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* vComputePPSlevels - compute the levels of the Property Set Storage entries
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*/
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static void
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vComputePPSlevels(pps_entry_type *atPPSlist, pps_entry_type *pNode,
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int iLevel, int iRecursionLevel)
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{
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fail(atPPSlist == NULL || pNode == NULL);
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fail(iLevel < 0 || iRecursionLevel < 0);
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if (iRecursionLevel > 25) {
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/* This removes the possibility of an infinite recursion */
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DBG_DEC(iRecursionLevel);
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return;
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}
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if (pNode->iLevel <= iLevel) {
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/* Avoid entering a loop */
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DBG_DEC(iLevel);
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DBG_DEC(pNode->iLevel);
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return;
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}
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pNode->iLevel = iLevel;
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if (pNode->ulDir != PPS_NUMBER_INVALID) {
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vComputePPSlevels(atPPSlist,
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&atPPSlist[pNode->ulDir],
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iLevel + 1,
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iRecursionLevel + 1);
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}
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if (pNode->ulNext != PPS_NUMBER_INVALID) {
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vComputePPSlevels(atPPSlist,
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&atPPSlist[pNode->ulNext],
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iLevel,
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iRecursionLevel + 1);
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}
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if (pNode->ulPrevious != PPS_NUMBER_INVALID) {
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vComputePPSlevels(atPPSlist,
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&atPPSlist[pNode->ulPrevious],
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iLevel,
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iRecursionLevel + 1);
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}
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} /* end of vComputePPSlevels */
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/*
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* bGetPPS - search the Property Set Storage for three sets
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*
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* Return TRUE if the WordDocument PPS is found
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*/
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static BOOL
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bGetPPS(FILE *pFile,
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const ULONG *aulRootList, size_t tRootListLen, pps_info_type *pPPS)
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{
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pps_entry_type *atPPSlist;
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ULONG ulBegin, ulOffset, ulTmp;
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size_t tNbrOfPPS, tNameSize;
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int iIndex, iStartBlock, iRootIndex;
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BOOL bWord, bExcel;
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UCHAR aucBytes[PROPERTY_SET_STORAGE_SIZE];
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fail(pFile == NULL || aulRootList == NULL || pPPS == NULL);
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DBG_MSG("bGetPPS");
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NO_DBG_DEC(tRootListLen);
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bWord = FALSE;
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bExcel = FALSE;
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(void)memset(pPPS, 0, sizeof(*pPPS));
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/* Read and store all the Property Set Storage entries */
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tNbrOfPPS = tRootListLen * BIG_BLOCK_SIZE / PROPERTY_SET_STORAGE_SIZE;
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atPPSlist = xcalloc(tNbrOfPPS, sizeof(pps_entry_type));
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iRootIndex = 0;
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for (iIndex = 0; iIndex < (int)tNbrOfPPS; iIndex++) {
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ulTmp = (ULONG)iIndex * PROPERTY_SET_STORAGE_SIZE;
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iStartBlock = (int)(ulTmp / BIG_BLOCK_SIZE);
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ulOffset = ulTmp % BIG_BLOCK_SIZE;
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ulBegin = (aulRootList[iStartBlock] + 1) * BIG_BLOCK_SIZE +
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ulOffset;
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NO_DBG_HEX(ulBegin);
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if (!bReadBytes(aucBytes, PROPERTY_SET_STORAGE_SIZE,
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ulBegin, pFile)) {
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werr(0, "Reading PPS %d is not possible", iIndex);
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atPPSlist = xfree(atPPSlist);
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return FALSE;
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}
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tNameSize = (size_t)usGetWord(0x40, aucBytes);
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tNameSize = (tNameSize + 1) / 2;
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vName2String(atPPSlist[iIndex].szName, aucBytes, tNameSize);
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atPPSlist[iIndex].ucType = ucGetByte(0x42, aucBytes);
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if (atPPSlist[iIndex].ucType == 5) {
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iRootIndex = iIndex;
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}
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atPPSlist[iIndex].ulPrevious = ulGetLong(0x44, aucBytes);
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atPPSlist[iIndex].ulNext = ulGetLong(0x48, aucBytes);
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atPPSlist[iIndex].ulDir = ulGetLong(0x4c, aucBytes);
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atPPSlist[iIndex].ulSB = ulGetLong(0x74, aucBytes);
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atPPSlist[iIndex].ulSize = ulGetLong(0x78, aucBytes);
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atPPSlist[iIndex].iLevel = INT_MAX;
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273 |
if ((atPPSlist[iIndex].ulPrevious >= (ULONG)tNbrOfPPS &&
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atPPSlist[iIndex].ulPrevious != PPS_NUMBER_INVALID) ||
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(atPPSlist[iIndex].ulNext >= (ULONG)tNbrOfPPS &&
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atPPSlist[iIndex].ulNext != PPS_NUMBER_INVALID) ||
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(atPPSlist[iIndex].ulDir >= (ULONG)tNbrOfPPS &&
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atPPSlist[iIndex].ulDir != PPS_NUMBER_INVALID)) {
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279 |
DBG_DEC(iIndex);
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280 |
DBG_DEC(atPPSlist[iIndex].ulPrevious);
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281 |
DBG_DEC(atPPSlist[iIndex].ulNext);
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282 |
DBG_DEC(atPPSlist[iIndex].ulDir);
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283 |
DBG_DEC(tNbrOfPPS);
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284 |
werr(0, "The Property Set Storage is damaged");
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285 |
atPPSlist = xfree(atPPSlist);
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286 |
return FALSE;
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287 |
}
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288 |
}
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289 |
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290 |
#if 0 /* defined(DEBUG) */
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291 |
DBG_MSG("Before");
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292 |
for (iIndex = 0; iIndex < (int)tNbrOfPPS; iIndex++) {
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293 |
DBG_MSG(atPPSlist[iIndex].szName);
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294 |
DBG_HEX(atPPSlist[iIndex].ulDir);
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295 |
DBG_HEX(atPPSlist[iIndex].ulPrevious);
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296 |
DBG_HEX(atPPSlist[iIndex].ulNext);
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297 |
DBG_DEC(atPPSlist[iIndex].ulSB);
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298 |
DBG_HEX(atPPSlist[iIndex].ulSize);
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299 |
DBG_DEC(atPPSlist[iIndex].iLevel);
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300 |
}
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301 |
#endif /* DEBUG */
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302 |
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303 |
/* Add level information to each entry */
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304 |
vComputePPSlevels(atPPSlist, &atPPSlist[iRootIndex], 0, 0);
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305 |
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306 |
/* Check the entries on level 1 for the required information */
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307 |
NO_DBG_MSG("After");
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308 |
for (iIndex = 0; iIndex < (int)tNbrOfPPS; iIndex++) {
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309 |
#if 0 /* defined(DEBUG) */
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310 |
DBG_MSG(atPPSlist[iIndex].szName);
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311 |
DBG_HEX(atPPSlist[iIndex].ulDir);
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312 |
DBG_HEX(atPPSlist[iIndex].ulPrevious);
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313 |
DBG_HEX(atPPSlist[iIndex].ulNext);
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314 |
DBG_DEC(atPPSlist[iIndex].ulSB);
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315 |
DBG_HEX(atPPSlist[iIndex].ulSize);
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316 |
DBG_DEC(atPPSlist[iIndex].iLevel);
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317 |
#endif /* DEBUG */
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318 |
if (atPPSlist[iIndex].iLevel != 1 ||
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319 |
atPPSlist[iIndex].ucType != 2 ||
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320 |
atPPSlist[iIndex].szName[0] == '\0' ||
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321 |
atPPSlist[iIndex].ulSize == 0) {
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322 |
/* This entry can be ignored */
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323 |
continue;
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324 |
}
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325 |
if (pPPS->tWordDocument.ulSize == 0 &&
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326 |
STREQ(atPPSlist[iIndex].szName, "WordDocument")) {
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327 |
pPPS->tWordDocument.ulSB = atPPSlist[iIndex].ulSB;
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328 |
pPPS->tWordDocument.ulSize = atPPSlist[iIndex].ulSize;
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329 |
bWord = TRUE;
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330 |
} else if (pPPS->tData.ulSize == 0 &&
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331 |
STREQ(atPPSlist[iIndex].szName, "Data")) {
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332 |
pPPS->tData.ulSB = atPPSlist[iIndex].ulSB;
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333 |
pPPS->tData.ulSize = atPPSlist[iIndex].ulSize;
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334 |
} else if (pPPS->t0Table.ulSize == 0 &&
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335 |
STREQ(atPPSlist[iIndex].szName, "0Table")) {
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336 |
pPPS->t0Table.ulSB = atPPSlist[iIndex].ulSB;
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|
337 |
pPPS->t0Table.ulSize = atPPSlist[iIndex].ulSize;
|
|
|
338 |
} else if (pPPS->t1Table.ulSize == 0 &&
|
|
|
339 |
STREQ(atPPSlist[iIndex].szName, "1Table")) {
|
|
|
340 |
pPPS->t1Table.ulSB = atPPSlist[iIndex].ulSB;
|
|
|
341 |
pPPS->t1Table.ulSize = atPPSlist[iIndex].ulSize;
|
|
|
342 |
} else if (pPPS->tSummaryInfo.ulSize == 0 &&
|
|
|
343 |
STREQ(atPPSlist[iIndex].szName,
|
|
|
344 |
"\005SummaryInformation")) {
|
|
|
345 |
pPPS->tSummaryInfo.ulSB = atPPSlist[iIndex].ulSB;
|
|
|
346 |
pPPS->tSummaryInfo.ulSize = atPPSlist[iIndex].ulSize;
|
|
|
347 |
} else if (pPPS->tDocSummaryInfo.ulSize == 0 &&
|
|
|
348 |
STREQ(atPPSlist[iIndex].szName,
|
|
|
349 |
"\005DocumentSummaryInformation")) {
|
|
|
350 |
pPPS->tDocSummaryInfo.ulSB = atPPSlist[iIndex].ulSB;
|
|
|
351 |
pPPS->tDocSummaryInfo.ulSize = atPPSlist[iIndex].ulSize;
|
|
|
352 |
} else if (STREQ(atPPSlist[iIndex].szName, "Book") ||
|
|
|
353 |
STREQ(atPPSlist[iIndex].szName, "Workbook")) {
|
|
|
354 |
bExcel = TRUE;
|
|
|
355 |
}
|
|
|
356 |
}
|
|
|
357 |
|
|
|
358 |
/* Free the space for the Property Set Storage entries */
|
|
|
359 |
atPPSlist = xfree(atPPSlist);
|
|
|
360 |
|
|
|
361 |
/* Draw your conclusions */
|
|
|
362 |
if (bWord) {
|
|
|
363 |
return TRUE;
|
|
|
364 |
}
|
|
|
365 |
|
|
|
366 |
if (bExcel) {
|
|
|
367 |
werr(0, "Sorry, but this is an Excel spreadsheet");
|
|
|
368 |
} else {
|
|
|
369 |
werr(0, "This OLE file does not contain a Word document");
|
|
|
370 |
}
|
|
|
371 |
return FALSE;
|
|
|
372 |
} /* end of bGetPPS */
|
|
|
373 |
|
|
|
374 |
/*
|
|
|
375 |
* vGetBbdList - make a list of the places to find big blocks
|
|
|
376 |
*/
|
|
|
377 |
static void
|
|
|
378 |
vGetBbdList(FILE *pFile, int iNbr, ULONG *aulBbdList, ULONG ulOffset)
|
|
|
379 |
{
|
|
|
380 |
int iIndex;
|
|
|
381 |
|
|
|
382 |
fail(pFile == NULL);
|
|
|
383 |
fail(iNbr > 127);
|
|
|
384 |
fail(aulBbdList == NULL);
|
|
|
385 |
|
|
|
386 |
NO_DBG_DEC(iNbr);
|
|
|
387 |
for (iIndex = 0; iIndex < iNbr; iIndex++) {
|
|
|
388 |
aulBbdList[iIndex] =
|
|
|
389 |
ulReadLong(pFile, ulOffset + 4 * (ULONG)iIndex);
|
|
|
390 |
NO_DBG_DEC(iIndex);
|
|
|
391 |
NO_DBG_HEX(aulBbdList[iIndex]);
|
|
|
392 |
}
|
|
|
393 |
} /* end of vGetBbdList */
|
|
|
394 |
|
|
|
395 |
/*
|
|
|
396 |
* bGetDocumentText - make a list of the text blocks of a Word document
|
|
|
397 |
*
|
|
|
398 |
* Return TRUE when succesful, otherwise FALSE
|
|
|
399 |
*/
|
|
|
400 |
static BOOL
|
|
|
401 |
bGetDocumentText(FILE *pFile, const pps_info_type *pPPS,
|
|
|
402 |
const ULONG *aulBBD, size_t tBBDLen,
|
|
|
403 |
const ULONG *aulSBD, size_t tSBDLen,
|
|
|
404 |
const UCHAR *aucHeader, int iWordVersion)
|
|
|
405 |
{
|
|
|
406 |
ULONG ulBeginOfText;
|
|
|
407 |
ULONG ulTextLen, ulFootnoteLen, ulEndnoteLen;
|
|
|
408 |
ULONG ulHdrFtrLen, ulMacroLen, ulAnnotationLen;
|
|
|
409 |
ULONG ulTextBoxLen, ulHdrTextBoxLen;
|
|
|
410 |
UINT uiQuickSaves;
|
|
|
411 |
BOOL bFarEastWord, bTemplate, bFastSaved, bEncrypted, bSuccess;
|
|
|
412 |
USHORT usIdent, usDocStatus;
|
|
|
413 |
|
|
|
414 |
fail(pFile == NULL || pPPS == NULL);
|
|
|
415 |
fail(aulBBD == NULL);
|
|
|
416 |
fail(aulSBD == NULL);
|
|
|
417 |
|
|
|
418 |
DBG_MSG("bGetDocumentText");
|
|
|
419 |
|
|
|
420 |
/* Get the "magic number" from the header */
|
|
|
421 |
usIdent = usGetWord(0x00, aucHeader);
|
|
|
422 |
DBG_HEX(usIdent);
|
|
|
423 |
bFarEastWord = usIdent == 0x8098 || usIdent == 0x8099 ||
|
|
|
424 |
usIdent == 0xa697 || usIdent == 0xa699;
|
|
|
425 |
/* Get the status flags from the header */
|
|
|
426 |
usDocStatus = usGetWord(0x0a, aucHeader);
|
|
|
427 |
DBG_HEX(usDocStatus);
|
|
|
428 |
bTemplate = (usDocStatus & BIT(0)) != 0;
|
|
|
429 |
DBG_MSG_C(bTemplate, "This document is a Template");
|
|
|
430 |
bFastSaved = (usDocStatus & BIT(2)) != 0;
|
|
|
431 |
uiQuickSaves = (UINT)(usDocStatus & 0x00f0) >> 4;
|
|
|
432 |
DBG_MSG_C(bFastSaved, "This document is Fast Saved");
|
|
|
433 |
DBG_DEC_C(bFastSaved, uiQuickSaves);
|
|
|
434 |
bEncrypted = (usDocStatus & BIT(8)) != 0;
|
|
|
435 |
if (bEncrypted) {
|
|
|
436 |
werr(0, "Encrypted documents are not supported");
|
|
|
437 |
return FALSE;
|
|
|
438 |
}
|
|
|
439 |
|
|
|
440 |
/* Get length information */
|
|
|
441 |
ulBeginOfText = ulGetLong(0x18, aucHeader);
|
|
|
442 |
DBG_HEX(ulBeginOfText);
|
|
|
443 |
switch (iWordVersion) {
|
|
|
444 |
case 6:
|
|
|
445 |
case 7:
|
|
|
446 |
ulTextLen = ulGetLong(0x34, aucHeader);
|
|
|
447 |
ulFootnoteLen = ulGetLong(0x38, aucHeader);
|
|
|
448 |
ulHdrFtrLen = ulGetLong(0x3c, aucHeader);
|
|
|
449 |
ulMacroLen = ulGetLong(0x40, aucHeader);
|
|
|
450 |
ulAnnotationLen = ulGetLong(0x44, aucHeader);
|
|
|
451 |
ulEndnoteLen = ulGetLong(0x48, aucHeader);
|
|
|
452 |
ulTextBoxLen = ulGetLong(0x4c, aucHeader);
|
|
|
453 |
ulHdrTextBoxLen = ulGetLong(0x50, aucHeader);
|
|
|
454 |
break;
|
|
|
455 |
case 8:
|
|
|
456 |
ulTextLen = ulGetLong(0x4c, aucHeader);
|
|
|
457 |
ulFootnoteLen = ulGetLong(0x50, aucHeader);
|
|
|
458 |
ulHdrFtrLen = ulGetLong(0x54, aucHeader);
|
|
|
459 |
ulMacroLen = ulGetLong(0x58, aucHeader);
|
|
|
460 |
ulAnnotationLen = ulGetLong(0x5c, aucHeader);
|
|
|
461 |
ulEndnoteLen = ulGetLong(0x60, aucHeader);
|
|
|
462 |
ulTextBoxLen = ulGetLong(0x64, aucHeader);
|
|
|
463 |
ulHdrTextBoxLen = ulGetLong(0x68, aucHeader);
|
|
|
464 |
break;
|
|
|
465 |
default:
|
|
|
466 |
werr(0, "This version of Word is not supported");
|
|
|
467 |
return FALSE;
|
|
|
468 |
}
|
|
|
469 |
DBG_DEC(ulTextLen);
|
|
|
470 |
DBG_DEC(ulFootnoteLen);
|
|
|
471 |
DBG_DEC(ulHdrFtrLen);
|
|
|
472 |
DBG_DEC(ulMacroLen);
|
|
|
473 |
DBG_DEC(ulAnnotationLen);
|
|
|
474 |
DBG_DEC(ulEndnoteLen);
|
|
|
475 |
DBG_DEC(ulTextBoxLen);
|
|
|
476 |
DBG_DEC(ulHdrTextBoxLen);
|
|
|
477 |
|
|
|
478 |
/* Make a list of the text blocks */
|
|
|
479 |
switch (iWordVersion) {
|
|
|
480 |
case 6:
|
|
|
481 |
case 7:
|
|
|
482 |
if (bFastSaved) {
|
|
|
483 |
bSuccess = bGet6DocumentText(pFile,
|
|
|
484 |
bFarEastWord,
|
|
|
485 |
pPPS->tWordDocument.ulSB,
|
|
|
486 |
aulBBD, tBBDLen,
|
|
|
487 |
aucHeader);
|
|
|
488 |
} else {
|
|
|
489 |
bSuccess = bAddTextBlocks(ulBeginOfText,
|
|
|
490 |
ulTextLen +
|
|
|
491 |
ulFootnoteLen +
|
|
|
492 |
ulHdrFtrLen +
|
|
|
493 |
ulMacroLen + ulAnnotationLen +
|
|
|
494 |
ulEndnoteLen +
|
|
|
495 |
ulTextBoxLen + ulHdrTextBoxLen,
|
|
|
496 |
bFarEastWord,
|
|
|
497 |
IGNORE_PROPMOD,
|
|
|
498 |
pPPS->tWordDocument.ulSB,
|
|
|
499 |
aulBBD, tBBDLen);
|
|
|
500 |
}
|
|
|
501 |
break;
|
|
|
502 |
case 8:
|
|
|
503 |
bSuccess = bGet8DocumentText(pFile,
|
|
|
504 |
pPPS,
|
|
|
505 |
aulBBD, tBBDLen, aulSBD, tSBDLen,
|
|
|
506 |
aucHeader);
|
|
|
507 |
break;
|
|
|
508 |
default:
|
|
|
509 |
werr(0, "This version of Word is not supported");
|
|
|
510 |
bSuccess = FALSE;
|
|
|
511 |
break;
|
|
|
512 |
}
|
|
|
513 |
|
|
|
514 |
if (bSuccess) {
|
|
|
515 |
vSplitBlockList(pFile,
|
|
|
516 |
ulTextLen,
|
|
|
517 |
ulFootnoteLen,
|
|
|
518 |
ulHdrFtrLen,
|
|
|
519 |
ulMacroLen,
|
|
|
520 |
ulAnnotationLen,
|
|
|
521 |
ulEndnoteLen,
|
|
|
522 |
ulTextBoxLen,
|
|
|
523 |
ulHdrTextBoxLen,
|
|
|
524 |
!bFastSaved && iWordVersion == 8);
|
|
|
525 |
} else {
|
|
|
526 |
vDestroyTextBlockList();
|
|
|
527 |
werr(0, "I can't find the text of this document");
|
|
|
528 |
}
|
|
|
529 |
return bSuccess;
|
|
|
530 |
} /* end of bGetDocumentText */
|
|
|
531 |
|
|
|
532 |
/*
|
|
|
533 |
* vGetDocumentData - make a list of the data blocks of a Word document
|
|
|
534 |
*/
|
|
|
535 |
static void
|
|
|
536 |
vGetDocumentData(FILE *pFile, const pps_info_type *pPPS,
|
|
|
537 |
const ULONG *aulBBD, size_t tBBDLen,
|
|
|
538 |
const UCHAR *aucHeader, int iWordVersion)
|
|
|
539 |
{
|
|
|
540 |
options_type tOptions;
|
|
|
541 |
ULONG ulBeginOfText;
|
|
|
542 |
BOOL bFastSaved, bHasImages, bSuccess;
|
|
|
543 |
USHORT usDocStatus;
|
|
|
544 |
|
|
|
545 |
fail(pFile == NULL);
|
|
|
546 |
fail(pPPS == NULL);
|
|
|
547 |
fail(aulBBD == NULL);
|
|
|
548 |
|
|
|
549 |
/* Get the options */
|
|
|
550 |
vGetOptions(&tOptions);
|
|
|
551 |
|
|
|
552 |
/* Get the status flags from the header */
|
|
|
553 |
usDocStatus = usGetWord(0x0a, aucHeader);
|
|
|
554 |
DBG_HEX(usDocStatus);
|
|
|
555 |
bFastSaved = (usDocStatus & BIT(2)) != 0;
|
|
|
556 |
bHasImages = (usDocStatus & BIT(3)) != 0;
|
|
|
557 |
|
|
|
558 |
if (!bHasImages ||
|
|
|
559 |
tOptions.eConversionType == conversion_text ||
|
|
|
560 |
tOptions.eConversionType == conversion_fmt_text ||
|
|
|
561 |
tOptions.eConversionType == conversion_xml ||
|
|
|
562 |
tOptions.eImageLevel == level_no_images) {
|
|
|
563 |
/*
|
|
|
564 |
* No images in the document or text-only output or
|
|
|
565 |
* no images wanted, so no data blocks will be needed
|
|
|
566 |
*/
|
|
|
567 |
vDestroyDataBlockList();
|
|
|
568 |
return;
|
|
|
569 |
}
|
|
|
570 |
|
|
|
571 |
/* Get length information */
|
|
|
572 |
ulBeginOfText = ulGetLong(0x18, aucHeader);
|
|
|
573 |
DBG_HEX(ulBeginOfText);
|
|
|
574 |
|
|
|
575 |
/* Make a list of the data blocks */
|
|
|
576 |
switch (iWordVersion) {
|
|
|
577 |
case 6:
|
|
|
578 |
case 7:
|
|
|
579 |
/*
|
|
|
580 |
* The data blocks are in the text stream. The text stream
|
|
|
581 |
* is in "fast saved" format or "normal saved" format
|
|
|
582 |
*/
|
|
|
583 |
if (bFastSaved) {
|
|
|
584 |
bSuccess = bGet6DocumentData(pFile,
|
|
|
585 |
pPPS->tWordDocument.ulSB,
|
|
|
586 |
aulBBD, tBBDLen,
|
|
|
587 |
aucHeader);
|
|
|
588 |
} else {
|
|
|
589 |
bSuccess = bAddDataBlocks(ulBeginOfText,
|
|
|
590 |
(ULONG)LONG_MAX,
|
|
|
591 |
pPPS->tWordDocument.ulSB,
|
|
|
592 |
aulBBD, tBBDLen);
|
|
|
593 |
}
|
|
|
594 |
break;
|
|
|
595 |
case 8:
|
|
|
596 |
/*
|
|
|
597 |
* The data blocks are in the data stream. The data stream
|
|
|
598 |
* is always in "normal saved" format
|
|
|
599 |
*/
|
|
|
600 |
bSuccess = bAddDataBlocks(0, (ULONG)LONG_MAX,
|
|
|
601 |
pPPS->tData.ulSB, aulBBD, tBBDLen);
|
|
|
602 |
break;
|
|
|
603 |
default:
|
|
|
604 |
werr(0, "This version of Word is not supported");
|
|
|
605 |
bSuccess = FALSE;
|
|
|
606 |
break;
|
|
|
607 |
}
|
|
|
608 |
|
|
|
609 |
if (!bSuccess) {
|
|
|
610 |
vDestroyDataBlockList();
|
|
|
611 |
werr(0, "I can't find the data of this document");
|
|
|
612 |
}
|
|
|
613 |
} /* end of vGetDocumentData */
|
|
|
614 |
|
|
|
615 |
/*
|
|
|
616 |
* iInitDocumentOLE - initialize an OLE document
|
|
|
617 |
*
|
|
|
618 |
* Returns the version of Word that made the document or -1
|
|
|
619 |
*/
|
|
|
620 |
int
|
|
|
621 |
iInitDocumentOLE(FILE *pFile, long lFilesize)
|
|
|
622 |
{
|
|
|
623 |
pps_info_type PPS_info;
|
|
|
624 |
ULONG *aulBBD, *aulSBD;
|
|
|
625 |
ULONG *aulRootList, *aulBbdList, *aulSbdList;
|
|
|
626 |
ULONG ulBdbListStart, ulAdditionalBBDlist;
|
|
|
627 |
ULONG ulRootStartblock, ulSbdStartblock, ulSBLstartblock;
|
|
|
628 |
ULONG ulStart, ulTmp;
|
|
|
629 |
long lMaxBlock;
|
|
|
630 |
size_t tBBDLen, tSBDLen, tNumBbdBlocks, tRootListLen;
|
|
|
631 |
int iWordVersion, iIndex, iToGo;
|
|
|
632 |
BOOL bSuccess;
|
|
|
633 |
USHORT usIdent, usDocStatus;
|
|
|
634 |
UCHAR aucHeader[HEADER_SIZE];
|
|
|
635 |
|
|
|
636 |
fail(pFile == NULL);
|
|
|
637 |
|
|
|
638 |
lMaxBlock = lFilesize / BIG_BLOCK_SIZE - 2;
|
|
|
639 |
DBG_DEC(lMaxBlock);
|
|
|
640 |
if (lMaxBlock < 1) {
|
|
|
641 |
return -1;
|
|
|
642 |
}
|
|
|
643 |
tBBDLen = (size_t)(lMaxBlock + 1);
|
|
|
644 |
tNumBbdBlocks = (size_t)ulReadLong(pFile, 0x2c);
|
|
|
645 |
DBG_DEC(tNumBbdBlocks);
|
|
|
646 |
ulRootStartblock = ulReadLong(pFile, 0x30);
|
|
|
647 |
DBG_DEC(ulRootStartblock);
|
|
|
648 |
ulSbdStartblock = ulReadLong(pFile, 0x3c);
|
|
|
649 |
DBG_DEC(ulSbdStartblock);
|
|
|
650 |
ulAdditionalBBDlist = ulReadLong(pFile, 0x44);
|
|
|
651 |
DBG_HEX(ulAdditionalBBDlist);
|
|
|
652 |
ulSBLstartblock = ulReadLong(pFile,
|
|
|
653 |
(ulRootStartblock + 1) * BIG_BLOCK_SIZE + 0x74);
|
|
|
654 |
DBG_DEC(ulSBLstartblock);
|
|
|
655 |
tSBDLen = (size_t)(ulReadLong(pFile,
|
|
|
656 |
(ulRootStartblock + 1) * BIG_BLOCK_SIZE + 0x78) /
|
|
|
657 |
SMALL_BLOCK_SIZE);
|
|
|
658 |
/* All to be xcalloc-ed pointers to NULL */
|
|
|
659 |
aulRootList = NULL;
|
|
|
660 |
aulSbdList = NULL;
|
|
|
661 |
aulBbdList = NULL;
|
|
|
662 |
aulSBD = NULL;
|
|
|
663 |
aulBBD = NULL;
|
|
|
664 |
/* Big Block Depot */
|
|
|
665 |
aulBbdList = xcalloc(tNumBbdBlocks, sizeof(ULONG));
|
|
|
666 |
aulBBD = xcalloc(tBBDLen, sizeof(ULONG));
|
|
|
667 |
iToGo = (int)tNumBbdBlocks;
|
|
|
668 |
vGetBbdList(pFile, min(iToGo, 109), aulBbdList, 0x4c);
|
|
|
669 |
ulStart = 109;
|
|
|
670 |
iToGo -= 109;
|
|
|
671 |
while (ulAdditionalBBDlist != END_OF_CHAIN && iToGo > 0) {
|
|
|
672 |
ulBdbListStart = (ulAdditionalBBDlist + 1) * BIG_BLOCK_SIZE;
|
|
|
673 |
vGetBbdList(pFile, min(iToGo, 127),
|
|
|
674 |
aulBbdList + ulStart, ulBdbListStart);
|
|
|
675 |
ulAdditionalBBDlist = ulReadLong(pFile,
|
|
|
676 |
ulBdbListStart + 4 * 127);
|
|
|
677 |
DBG_DEC(ulAdditionalBBDlist);
|
|
|
678 |
DBG_HEX(ulAdditionalBBDlist);
|
|
|
679 |
ulStart += 127;
|
|
|
680 |
iToGo -= 127;
|
|
|
681 |
}
|
|
|
682 |
if (!bGetBBD(pFile, aulBbdList, tNumBbdBlocks, aulBBD, tBBDLen)) {
|
|
|
683 |
FREE_ALL();
|
|
|
684 |
return -1;
|
|
|
685 |
}
|
|
|
686 |
aulBbdList = xfree(aulBbdList);
|
|
|
687 |
/* Small Block Depot */
|
|
|
688 |
aulSbdList = xcalloc(tBBDLen, sizeof(ULONG));
|
|
|
689 |
aulSBD = xcalloc(tSBDLen, sizeof(ULONG));
|
|
|
690 |
for (iIndex = 0, ulTmp = ulSbdStartblock;
|
|
|
691 |
iIndex < (int)tBBDLen && ulTmp != END_OF_CHAIN;
|
|
|
692 |
iIndex++, ulTmp = aulBBD[ulTmp]) {
|
|
|
693 |
if (ulTmp >= (ULONG)tBBDLen) {
|
|
|
694 |
DBG_DEC(ulTmp);
|
|
|
695 |
DBG_DEC(tBBDLen);
|
|
|
696 |
werr(1, "The Big Block Depot is damaged");
|
|
|
697 |
}
|
|
|
698 |
aulSbdList[iIndex] = ulTmp;
|
|
|
699 |
NO_DBG_HEX(aulSbdList[iIndex]);
|
|
|
700 |
}
|
|
|
701 |
if (!bGetSBD(pFile, aulSbdList, tBBDLen, aulSBD, tSBDLen)) {
|
|
|
702 |
FREE_ALL();
|
|
|
703 |
return -1;
|
|
|
704 |
}
|
|
|
705 |
aulSbdList = xfree(aulSbdList);
|
|
|
706 |
/* Root list */
|
|
|
707 |
for (tRootListLen = 0, ulTmp = ulRootStartblock;
|
|
|
708 |
tRootListLen < tBBDLen && ulTmp != END_OF_CHAIN;
|
|
|
709 |
tRootListLen++, ulTmp = aulBBD[ulTmp]) {
|
|
|
710 |
if (ulTmp >= (ULONG)tBBDLen) {
|
|
|
711 |
DBG_DEC(ulTmp);
|
|
|
712 |
DBG_DEC(tBBDLen);
|
|
|
713 |
werr(1, "The Big Block Depot is damaged");
|
|
|
714 |
}
|
|
|
715 |
}
|
|
|
716 |
if (tRootListLen == 0) {
|
|
|
717 |
werr(0, "No Rootlist found");
|
|
|
718 |
FREE_ALL();
|
|
|
719 |
return -1;
|
|
|
720 |
}
|
|
|
721 |
aulRootList = xcalloc(tRootListLen, sizeof(ULONG));
|
|
|
722 |
for (iIndex = 0, ulTmp = ulRootStartblock;
|
|
|
723 |
iIndex < (int)tBBDLen && ulTmp != END_OF_CHAIN;
|
|
|
724 |
iIndex++, ulTmp = aulBBD[ulTmp]) {
|
|
|
725 |
if (ulTmp >= (ULONG)tBBDLen) {
|
|
|
726 |
DBG_DEC(ulTmp);
|
|
|
727 |
DBG_DEC(tBBDLen);
|
|
|
728 |
werr(1, "The Big Block Depot is damaged");
|
|
|
729 |
}
|
|
|
730 |
aulRootList[iIndex] = ulTmp;
|
|
|
731 |
NO_DBG_DEC(aulRootList[iIndex]);
|
|
|
732 |
}
|
|
|
733 |
fail(tRootListLen != (size_t)iIndex);
|
|
|
734 |
bSuccess = bGetPPS(pFile, aulRootList, tRootListLen, &PPS_info);
|
|
|
735 |
aulRootList = xfree(aulRootList);
|
|
|
736 |
if (!bSuccess) {
|
|
|
737 |
FREE_ALL();
|
|
|
738 |
return -1;
|
|
|
739 |
}
|
|
|
740 |
/* Small block list */
|
|
|
741 |
if (!bCreateSmallBlockList(ulSBLstartblock, aulBBD, tBBDLen)) {
|
|
|
742 |
FREE_ALL();
|
|
|
743 |
return -1;
|
|
|
744 |
}
|
|
|
745 |
|
|
|
746 |
if (PPS_info.tWordDocument.ulSize < MIN_SIZE_FOR_BBD_USE) {
|
|
|
747 |
DBG_DEC(PPS_info.tWordDocument.ulSize);
|
|
|
748 |
FREE_ALL();
|
|
|
749 |
werr(0, "I'm afraid the text stream of this file "
|
|
|
750 |
"is too small to handle.");
|
|
|
751 |
return -1;
|
|
|
752 |
}
|
|
|
753 |
/* Read the headerblock */
|
|
|
754 |
if (!bReadBuffer(pFile, PPS_info.tWordDocument.ulSB,
|
|
|
755 |
aulBBD, tBBDLen, BIG_BLOCK_SIZE,
|
|
|
756 |
aucHeader, 0, HEADER_SIZE)) {
|
|
|
757 |
FREE_ALL();
|
|
|
758 |
return -1;
|
|
|
759 |
}
|
|
|
760 |
usIdent = usGetWord(0x00, aucHeader);
|
|
|
761 |
DBG_HEX(usIdent);
|
|
|
762 |
fail(usIdent != 0x8098 && /* Word 7 for oriental languages */
|
|
|
763 |
usIdent != 0x8099 && /* Word 7 for oriental languages */
|
|
|
764 |
usIdent != 0xa5dc && /* Word 6 & 7 */
|
|
|
765 |
usIdent != 0xa5ec && /* Word 7 & 97 & 98 */
|
|
|
766 |
usIdent != 0xa697 && /* Word 7 for oriental languages */
|
|
|
767 |
usIdent != 0xa699); /* Word 7 for oriental languages */
|
|
|
768 |
iWordVersion = iGetVersionNumber(aucHeader);
|
|
|
769 |
if (iWordVersion < 6) {
|
|
|
770 |
FREE_ALL();
|
|
|
771 |
werr(0, "This file is from a version of Word before Word 6.");
|
|
|
772 |
return -1;
|
|
|
773 |
}
|
|
|
774 |
|
|
|
775 |
/* Get the status flags from the header */
|
|
|
776 |
usDocStatus = usGetWord(0x0a, aucHeader);
|
|
|
777 |
if (usDocStatus & BIT(9)) {
|
|
|
778 |
PPS_info.tTable = PPS_info.t1Table;
|
|
|
779 |
} else {
|
|
|
780 |
PPS_info.tTable = PPS_info.t0Table;
|
|
|
781 |
}
|
|
|
782 |
/* Clean the entries that should not be used */
|
|
|
783 |
memset(&PPS_info.t0Table, 0, sizeof(PPS_info.t0Table));
|
|
|
784 |
memset(&PPS_info.t1Table, 0, sizeof(PPS_info.t1Table));
|
|
|
785 |
|
|
|
786 |
bSuccess = bGetDocumentText(pFile, &PPS_info,
|
|
|
787 |
aulBBD, tBBDLen, aulSBD, tSBDLen,
|
|
|
788 |
aucHeader, iWordVersion);
|
|
|
789 |
if (bSuccess) {
|
|
|
790 |
vGetDocumentData(pFile, &PPS_info,
|
|
|
791 |
aulBBD, tBBDLen, aucHeader, iWordVersion);
|
|
|
792 |
vGetPropertyInfo(pFile, &PPS_info,
|
|
|
793 |
aulBBD, tBBDLen, aulSBD, tSBDLen,
|
|
|
794 |
aucHeader, iWordVersion);
|
|
|
795 |
vSetDefaultTabWidth(pFile, &PPS_info,
|
|
|
796 |
aulBBD, tBBDLen, aulSBD, tSBDLen,
|
|
|
797 |
aucHeader, iWordVersion);
|
|
|
798 |
vGetNotesInfo(pFile, &PPS_info,
|
|
|
799 |
aulBBD, tBBDLen, aulSBD, tSBDLen,
|
|
|
800 |
aucHeader, iWordVersion);
|
|
|
801 |
}
|
|
|
802 |
FREE_ALL();
|
|
|
803 |
return bSuccess ? iWordVersion : -1;
|
|
|
804 |
} /* end of iInitDocumentOLE */
|