ref: 75f5332c9dce891845e57b188efad28d7530d8ae
dir: /sys/src/cmd/aux/antiword/notes.c/
/* * notes.c * Copyright (C) 1998-2005 A.J. van Os; Released under GNU GPL * * Description: * Functions to tell the difference between footnotes and endnotes */ #include "antiword.h" /* * Private structures to hide the way the information * is stored from the rest of the program */ typedef struct footnote_local_tag { footnote_block_type tInfo; ULONG ulCharPosStart; ULONG ulCharPosNext; BOOL bUseful; } footnote_local_type; /* Variables needed to write the Footnote and Endnote information */ static ULONG *aulFootnoteList = NULL; static size_t tFootnoteListLength = 0; static ULONG *aulEndnoteList = NULL; static size_t tEndnoteListLength = 0; /* Variables needed to write the Footnote Text */ static footnote_local_type *pFootnoteText = NULL; static size_t tFootnoteTextLength = 0; /* * Destroy the lists with footnote and endnote information */ void vDestroyNotesInfoLists(void) { footnote_local_type *pRecord; size_t tFootnote; TRACE_MSG("vDestroyNotesInfoLists"); /* Free the lists and reset all control variables */ aulEndnoteList = xfree(aulEndnoteList); aulFootnoteList = xfree(aulFootnoteList); tEndnoteListLength = 0; tFootnoteListLength = 0; for (tFootnote = 0; tFootnote < tFootnoteTextLength; tFootnote++) { pRecord = pFootnoteText + tFootnote; pRecord->tInfo.szText = xfree(pRecord->tInfo.szText); } pFootnoteText = xfree(pFootnoteText); tFootnoteTextLength = 0; } /* end of vDestroyNotesInfoLists */ /* * Build the list with footnote information for Word for DOS files */ static void vGet0FootnotesInfoAndText(FILE *pFile, const UCHAR *aucHeader) { footnote_local_type *pCurr; UCHAR *aucBuffer; ULONG ulFileOffset, ulBeginOfText, ulOffset, ulBeginFootnoteInfo; ULONG ulCharPos, ulBeginNextBlock; size_t tFootnotes, tFootnoteInfoLen; size_t tIndex; UCHAR aucTmp[2]; TRACE_MSG("vGet0FootnotesInfoAndText"); fail(pFile == NULL || aucHeader == NULL); ulBeginOfText = 128; NO_DBG_HEX(ulBeginOfText); ulBeginFootnoteInfo = 128 * (ULONG)usGetWord(0x14, aucHeader); DBG_HEX(ulBeginFootnoteInfo); ulBeginNextBlock = 128 * (ULONG)usGetWord(0x16, aucHeader); DBG_HEX(ulBeginNextBlock); if (ulBeginFootnoteInfo == ulBeginNextBlock) { DBG_MSG("No Footnotes in this document"); return; } /* Read the the number of footnotes + 1 */ if (!bReadBytes(aucTmp, 2, ulBeginFootnoteInfo, pFile)) { return; } tFootnotes = (size_t)usGetWord(0, aucTmp); if (tFootnotes < 2) { DBG_MSG("No Footnotes in this document (2)"); } DBG_DEC(tFootnotes); tFootnoteInfoLen = 8 * tFootnotes; aucBuffer = xmalloc(tFootnoteInfoLen); if (!bReadBytes(aucBuffer, tFootnoteInfoLen, ulBeginFootnoteInfo + 4, pFile)) { aucBuffer = xfree(aucBuffer); return; } DBG_PRINT_BLOCK(aucBuffer, tFootnoteInfoLen); /* Get footnote information */ fail(tFootnoteListLength != 0); tFootnoteListLength = tFootnotes - 1; fail(tFootnoteListLength == 0); fail(aulFootnoteList != NULL); aulFootnoteList = xcalloc(tFootnoteListLength, sizeof(ULONG)); for (tIndex = 0; tIndex < tFootnoteListLength; tIndex++) { ulOffset = ulGetLong(tIndex * 8, aucBuffer); DBG_HEX(ulOffset); ulFileOffset = ulCharPos2FileOffset(ulBeginOfText + ulOffset); DBG_HEX(ulFileOffset); aulFootnoteList[tIndex] = ulFileOffset; } /* Get footnote text */ fail(tFootnoteTextLength != 0); tFootnoteTextLength = tFootnotes - 1; fail(tFootnoteTextLength == 0); fail(pFootnoteText != NULL); pFootnoteText = xcalloc(tFootnoteTextLength, sizeof(footnote_local_type)); for (tIndex = 0; tIndex < tFootnoteTextLength; tIndex++) { pCurr = pFootnoteText + tIndex; pCurr->tInfo.szText = NULL; ulOffset = ulGetLong(tIndex * 8 + 4, aucBuffer); DBG_HEX(ulOffset); ulCharPos = ulBeginOfText + ulOffset; DBG_HEX(ulCharPos); DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosStart = ulCharPos; ulOffset = ulGetLong((tIndex + 1) * 8 + 4, aucBuffer); DBG_HEX(ulOffset); ulCharPos = ulBeginOfText + ulOffset; DBG_HEX(ulCharPos); DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosNext = ulCharPos; pCurr->bUseful = pCurr->ulCharPosStart != pCurr->ulCharPosNext; } aucBuffer = xfree(aucBuffer); } /* end of vGet0FootnotesInfoAndText */ /* * Build the lists note information for Word for DOS files */ static void vGet0NotesInfo(FILE *pFile, const UCHAR *aucHeader) { TRACE_MSG("vGet0NotesInfo"); vGet0FootnotesInfoAndText(pFile, aucHeader); /* There are no endnotes in a Word for DOS file */ } /* end of vGet0NotesInfo */ /* * Build the list with footnote information for WinWord 1/2 files */ static void vGet2FootnotesInfo(FILE *pFile, const UCHAR *aucHeader) { UCHAR *aucBuffer; ULONG ulFileOffset, ulBeginOfText, ulOffset, ulBeginFootnoteInfo; size_t tFootnoteInfoLen; size_t tIndex; TRACE_MSG("vGet2FootnotesInfo"); fail(pFile == NULL || aucHeader == NULL); ulBeginOfText = ulGetLong(0x18, aucHeader); /* fcMin */ NO_DBG_HEX(ulBeginOfText); ulBeginFootnoteInfo = ulGetLong(0x64, aucHeader); /* fcPlcffndRef */ NO_DBG_HEX(ulBeginFootnoteInfo); tFootnoteInfoLen = (size_t)usGetWord(0x68, aucHeader); /* cbPlcffndRef */ NO_DBG_DEC(tFootnoteInfoLen); if (tFootnoteInfoLen < 10) { DBG_MSG("No Footnotes in this document"); return; } aucBuffer = xmalloc(tFootnoteInfoLen); if (!bReadBytes(aucBuffer, tFootnoteInfoLen, ulBeginFootnoteInfo, pFile)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tFootnoteInfoLen); fail(tFootnoteListLength != 0); tFootnoteListLength = (tFootnoteInfoLen - 4) / 6; fail(tFootnoteListLength == 0); fail(aulFootnoteList != NULL); aulFootnoteList = xcalloc(tFootnoteListLength, sizeof(ULONG)); for (tIndex = 0; tIndex < tFootnoteListLength; tIndex++) { ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulFileOffset = ulCharPos2FileOffset(ulBeginOfText + ulOffset); NO_DBG_HEX(ulFileOffset); aulFootnoteList[tIndex] = ulFileOffset; } aucBuffer = xfree(aucBuffer); } /* end of vGet2FootnotesInfo */ /* * Build the list with footnote text information for WinWord 1/2 files */ static void vGet2FootnotesText(FILE *pFile, const UCHAR *aucHeader) { footnote_local_type *pCurr; UCHAR *aucBuffer; ULONG ulCharPos, ulBeginOfFootnotes, ulOffset, ulBeginFootnoteText; size_t tFootnoteTextLen; size_t tIndex; TRACE_MSG("vGet2FootnotesText"); fail(pFile == NULL || aucHeader == NULL); ulBeginOfFootnotes = ulGetLong(0x18, aucHeader); /* fcMin */ ulBeginOfFootnotes += ulGetLong(0x34, aucHeader); /* ccpText */ NO_DBG_HEX(ulBeginOfFootnotes); ulBeginFootnoteText = ulGetLong(0x6a, aucHeader); /* fcPlcffndTxt */ NO_DBG_HEX(ulBeginFootnoteText); tFootnoteTextLen = (size_t)usGetWord(0x6e, aucHeader); /* cbPlcffndTxt */ NO_DBG_DEC(tFootnoteTextLen); if (tFootnoteTextLen < 12) { DBG_MSG("No Footnote text in this document"); return; } aucBuffer = xmalloc(tFootnoteTextLen); if (!bReadBytes(aucBuffer, tFootnoteTextLen, ulBeginFootnoteText, pFile)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tFootnoteTextLen); fail(tFootnoteTextLength != 0); tFootnoteTextLength = tFootnoteTextLen / 4 - 2; fail(tFootnoteTextLength == 0); fail(pFootnoteText != NULL); pFootnoteText = xcalloc(tFootnoteTextLength, sizeof(footnote_local_type)); for (tIndex = 0; tIndex < tFootnoteTextLength; tIndex++) { pCurr = pFootnoteText + tIndex; pCurr->tInfo.szText = NULL; ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulCharPos = ulBeginOfFootnotes + ulOffset; NO_DBG_HEX(ulCharPos); NO_DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosStart = ulCharPos; ulOffset = ulGetLong(tIndex * 4 + 4, aucBuffer); NO_DBG_HEX(ulOffset); ulCharPos = ulBeginOfFootnotes + ulOffset; NO_DBG_HEX(ulCharPos); NO_DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosNext = ulCharPos; pCurr->bUseful = pCurr->ulCharPosStart != pCurr->ulCharPosNext; } aucBuffer = xfree(aucBuffer); } /* end of vGet2FootnotesText */ /* * Build the lists note information for WinWord 1/2 files */ static void vGet2NotesInfo(FILE *pFile, const UCHAR *aucHeader) { TRACE_MSG("vGet2NotesInfo"); vGet2FootnotesInfo(pFile, aucHeader); vGet2FootnotesText(pFile, aucHeader); /* There are no endnotes in a WinWord 1/2 file */ } /* end of vGet2NotesInfo */ /* * Build the list with footnote information for Word 6/7 files */ static void vGet6FootnotesInfo(FILE *pFile, ULONG ulStartBlock, const ULONG *aulBBD, size_t tBBDLen, const UCHAR *aucHeader) { UCHAR *aucBuffer; ULONG ulFileOffset, ulBeginOfText, ulOffset, ulBeginFootnoteInfo; size_t tFootnoteInfoLen; size_t tIndex; TRACE_MSG("vGet6FootnotesInfo"); fail(pFile == NULL || aucHeader == NULL); fail(ulStartBlock > MAX_BLOCKNUMBER && ulStartBlock != END_OF_CHAIN); fail(aulBBD == NULL); ulBeginOfText = ulGetLong(0x18, aucHeader); /* fcMin */ NO_DBG_HEX(ulBeginOfText); ulBeginFootnoteInfo = ulGetLong(0x68, aucHeader); /* fcPlcffndRef */ NO_DBG_HEX(ulBeginFootnoteInfo); tFootnoteInfoLen = (size_t)ulGetLong(0x6c, aucHeader); /* lcbPlcffndRef */ NO_DBG_DEC(tFootnoteInfoLen); if (tFootnoteInfoLen < 10) { DBG_MSG("No Footnotes in this document"); return; } aucBuffer = xmalloc(tFootnoteInfoLen); if (!bReadBuffer(pFile, ulStartBlock, aulBBD, tBBDLen, BIG_BLOCK_SIZE, aucBuffer, ulBeginFootnoteInfo, tFootnoteInfoLen)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tFootnoteInfoLen); fail(tFootnoteListLength != 0); tFootnoteListLength = (tFootnoteInfoLen - 4) / 6; fail(tFootnoteListLength == 0); fail(aulFootnoteList != NULL); aulFootnoteList = xcalloc(tFootnoteListLength, sizeof(ULONG)); for (tIndex = 0; tIndex < tFootnoteListLength; tIndex++) { ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulFileOffset = ulCharPos2FileOffset(ulBeginOfText + ulOffset); NO_DBG_HEX(ulFileOffset); aulFootnoteList[tIndex] = ulFileOffset; } aucBuffer = xfree(aucBuffer); } /* end of vGet6FootnotesInfo */ /* * Build the list with footnote text information for Word 6/7 files */ static void vGet6FootnotesText(FILE *pFile, ULONG ulStartBlock, const ULONG *aulBBD, size_t tBBDLen, const UCHAR *aucHeader) { footnote_local_type *pCurr; UCHAR *aucBuffer; ULONG ulCharPos, ulBeginOfFootnotes, ulOffset, ulBeginFootnoteText; size_t tFootnoteTextLen; size_t tIndex; TRACE_MSG("vGet6FootnotesText"); fail(pFile == NULL || aucHeader == NULL); fail(ulStartBlock > MAX_BLOCKNUMBER && ulStartBlock != END_OF_CHAIN); fail(aulBBD == NULL); ulBeginOfFootnotes = ulGetLong(0x18, aucHeader); /* fcMin */ ulBeginOfFootnotes += ulGetLong(0x34, aucHeader); /* ccpText */ NO_DBG_HEX(ulBeginOfFootnotes); ulBeginFootnoteText = ulGetLong(0x70, aucHeader); /* fcPlcffndTxt */ NO_DBG_HEX(ulBeginFootnoteText); tFootnoteTextLen = (size_t)ulGetLong(0x74, aucHeader); /* lcbPlcffndTxt */ NO_DBG_DEC(tFootnoteTextLen); if (tFootnoteTextLen < 12) { DBG_MSG("No Footnote text in this document"); return; } aucBuffer = xmalloc(tFootnoteTextLen); if (!bReadBuffer(pFile, ulStartBlock, aulBBD, tBBDLen, BIG_BLOCK_SIZE, aucBuffer, ulBeginFootnoteText, tFootnoteTextLen)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tFootnoteTextLen); fail(tFootnoteTextLength != 0); tFootnoteTextLength = tFootnoteTextLen / 4 - 2; fail(tFootnoteTextLength == 0); fail(pFootnoteText != NULL); pFootnoteText = xcalloc(tFootnoteTextLength, sizeof(footnote_local_type)); for (tIndex = 0; tIndex < tFootnoteTextLength; tIndex++) { pCurr = pFootnoteText + tIndex; pCurr->tInfo.szText = NULL; ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulCharPos = ulBeginOfFootnotes + ulOffset; NO_DBG_HEX(ulCharPos); NO_DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosStart = ulCharPos; ulOffset = ulGetLong(tIndex * 4 + 4, aucBuffer); NO_DBG_HEX(ulOffset); ulCharPos = ulBeginOfFootnotes + ulOffset; NO_DBG_HEX(ulCharPos); NO_DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosNext = ulCharPos; pCurr->bUseful = pCurr->ulCharPosStart != pCurr->ulCharPosNext; } aucBuffer = xfree(aucBuffer); } /* end of vGet6FootnotesText */ /* * Build the list with endnote information for Word 6/7 files */ static void vGet6EndnotesInfo(FILE *pFile, ULONG ulStartBlock, const ULONG *aulBBD, size_t tBBDLen, const UCHAR *aucHeader) { UCHAR *aucBuffer; ULONG ulFileOffset, ulBeginOfText, ulOffset, ulBeginEndnoteInfo; size_t tEndnoteInfoLen; size_t tIndex; TRACE_MSG("vGet6EndnotesInfo"); fail(pFile == NULL || aucHeader == NULL); fail(ulStartBlock > MAX_BLOCKNUMBER && ulStartBlock != END_OF_CHAIN); fail(aulBBD == NULL); ulBeginOfText = ulGetLong(0x18, aucHeader); /* fcMin */ NO_DBG_HEX(ulBeginOfText); ulBeginEndnoteInfo = ulGetLong(0x1d2, aucHeader); /* fcPlcfendRef */ NO_DBG_HEX(ulBeginEndnoteInfo); tEndnoteInfoLen = (size_t)ulGetLong(0x1d6, aucHeader); /* lcbPlcfendRef */ NO_DBG_DEC(tEndnoteInfoLen); if (tEndnoteInfoLen < 10) { DBG_MSG("No Endnotes in this document"); return; } aucBuffer = xmalloc(tEndnoteInfoLen); if (!bReadBuffer(pFile, ulStartBlock, aulBBD, tBBDLen, BIG_BLOCK_SIZE, aucBuffer, ulBeginEndnoteInfo, tEndnoteInfoLen)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tEndnoteInfoLen); fail(tEndnoteListLength != 0); tEndnoteListLength = (tEndnoteInfoLen - 4) / 6; fail(tEndnoteListLength == 0); fail(aulEndnoteList != NULL); aulEndnoteList = xcalloc(tEndnoteListLength, sizeof(ULONG)); for (tIndex = 0; tIndex < tEndnoteListLength; tIndex++) { ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulFileOffset = ulCharPos2FileOffset(ulBeginOfText + ulOffset); NO_DBG_HEX(ulFileOffset); aulEndnoteList[tIndex] = ulFileOffset; } aucBuffer = xfree(aucBuffer); } /* end of vGet6EndnotesInfo */ /* * Build the lists note information for Word 6/7 files */ static void vGet6NotesInfo(FILE *pFile, ULONG ulStartBlock, const ULONG *aulBBD, size_t tBBDLen, const UCHAR *aucHeader) { TRACE_MSG("vGet6NotesInfo"); vGet6FootnotesInfo(pFile, ulStartBlock, aulBBD, tBBDLen, aucHeader); vGet6FootnotesText(pFile, ulStartBlock, aulBBD, tBBDLen, aucHeader); vGet6EndnotesInfo(pFile, ulStartBlock, aulBBD, tBBDLen, aucHeader); } /* end of vGet6NotesInfo */ /* * Build the list with footnote information for Word 8/9/10 files */ static void vGet8FootnotesInfo(FILE *pFile, const pps_info_type *pPPS, const ULONG *aulBBD, size_t tBBDLen, const ULONG *aulSBD, size_t tSBDLen, const UCHAR *aucHeader) { const ULONG *aulBlockDepot; UCHAR *aucBuffer; ULONG ulFileOffset, ulBeginOfText, ulOffset, ulBeginFootnoteInfo; size_t tFootnoteInfoLen, tBlockDepotLen, tBlockSize; size_t tIndex; TRACE_MSG("vGet8FootnotesInfo"); ulBeginOfText = ulGetLong(0x18, aucHeader); /* fcMin */ NO_DBG_HEX(ulBeginOfText); ulBeginFootnoteInfo = ulGetLong(0xaa, aucHeader); /* fcPlcffndRef */ NO_DBG_HEX(ulBeginFootnoteInfo); tFootnoteInfoLen = (size_t)ulGetLong(0xae, aucHeader); /* lcbPlcffndRef */ NO_DBG_DEC(tFootnoteInfoLen); if (tFootnoteInfoLen < 10) { DBG_MSG("No Footnotes in this document"); return; } NO_DBG_DEC(pPPS->tTable.ulSB); NO_DBG_HEX(pPPS->tTable.ulSize); if (pPPS->tTable.ulSize == 0) { DBG_MSG("No footnotes information"); return; } if (pPPS->tTable.ulSize < MIN_SIZE_FOR_BBD_USE) { /* Use the Small Block Depot */ aulBlockDepot = aulSBD; tBlockDepotLen = tSBDLen; tBlockSize = SMALL_BLOCK_SIZE; } else { /* Use the Big Block Depot */ aulBlockDepot = aulBBD; tBlockDepotLen = tBBDLen; tBlockSize = BIG_BLOCK_SIZE; } aucBuffer = xmalloc(tFootnoteInfoLen); if (!bReadBuffer(pFile, pPPS->tTable.ulSB, aulBlockDepot, tBlockDepotLen, tBlockSize, aucBuffer, ulBeginFootnoteInfo, tFootnoteInfoLen)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tFootnoteInfoLen); fail(tFootnoteListLength != 0); tFootnoteListLength = (tFootnoteInfoLen - 4) / 6; fail(tFootnoteListLength == 0); fail(aulFootnoteList != NULL); aulFootnoteList = xcalloc(tFootnoteListLength, sizeof(ULONG)); for (tIndex = 0; tIndex < tFootnoteListLength; tIndex++) { ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulFileOffset = ulCharPos2FileOffset(ulBeginOfText + ulOffset); NO_DBG_HEX(ulFileOffset); aulFootnoteList[tIndex] = ulFileOffset; } aucBuffer = xfree(aucBuffer); } /* end of vGet8FootnotesInfo */ /* * Build the list with footnote text information for Word 8/9/10 files */ static void vGet8FootnotesText(FILE *pFile, const pps_info_type *pPPS, const ULONG *aulBBD, size_t tBBDLen, const ULONG *aulSBD, size_t tSBDLen, const UCHAR *aucHeader) { footnote_local_type *pCurr; const ULONG *aulBlockDepot; UCHAR *aucBuffer; ULONG ulCharPos, ulBeginOfFootnotes, ulOffset, ulBeginFootnoteText; size_t tFootnoteTextLen, tBlockDepotLen, tBlockSize; size_t tIndex; TRACE_MSG("vGet8FootnotesText"); ulBeginOfFootnotes = ulGetLong(0x18, aucHeader); /* fcMin */ ulBeginOfFootnotes += ulGetLong(0x4c, aucHeader); /* ccpText */ NO_DBG_HEX(ulBeginOfFootnotes); ulBeginFootnoteText = ulGetLong(0xb2, aucHeader); /* fcPlcffndTxt */ NO_DBG_HEX(ulBeginFootnoteText); tFootnoteTextLen = (size_t)ulGetLong(0xb6, aucHeader); /* lcbPlcffndTxt */ NO_DBG_DEC(tFootnoteTextLen); if (tFootnoteTextLen < 12) { DBG_MSG("No Footnote text in this document"); return; } NO_DBG_DEC(pPPS->tTable.ulSB); NO_DBG_HEX(pPPS->tTable.ulSize); if (pPPS->tTable.ulSize == 0) { DBG_MSG("No footnote text information"); return; } if (pPPS->tTable.ulSize < MIN_SIZE_FOR_BBD_USE) { /* Use the Small Block Depot */ aulBlockDepot = aulSBD; tBlockDepotLen = tSBDLen; tBlockSize = SMALL_BLOCK_SIZE; } else { /* Use the Big Block Depot */ aulBlockDepot = aulBBD; tBlockDepotLen = tBBDLen; tBlockSize = BIG_BLOCK_SIZE; } aucBuffer = xmalloc(tFootnoteTextLen); if (!bReadBuffer(pFile, pPPS->tTable.ulSB, aulBlockDepot, tBlockDepotLen, tBlockSize, aucBuffer, ulBeginFootnoteText, tFootnoteTextLen)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tFootnoteTextLen); fail(tFootnoteTextLength != 0); tFootnoteTextLength = tFootnoteTextLen / 4 - 2; fail(tFootnoteTextLength == 0); fail(pFootnoteText != NULL); pFootnoteText = xcalloc(tFootnoteTextLength, sizeof(footnote_local_type)); for (tIndex = 0; tIndex < tFootnoteTextLength; tIndex++) { pCurr = pFootnoteText + tIndex; pCurr->tInfo.szText = NULL; ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulCharPos = ulBeginOfFootnotes + ulOffset; NO_DBG_HEX(ulCharPos); NO_DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosStart = ulCharPos; ulOffset = ulGetLong(tIndex * 4 + 4, aucBuffer); NO_DBG_HEX(ulOffset); ulCharPos = ulBeginOfFootnotes + ulOffset; NO_DBG_HEX(ulCharPos); NO_DBG_HEX(ulCharPos2FileOffset(ulCharPos)); pCurr->ulCharPosNext = ulCharPos; pCurr->bUseful = pCurr->ulCharPosStart != pCurr->ulCharPosNext; } aucBuffer = xfree(aucBuffer); } /* end of vGet8FootnotesText */ /* * Build the list with endnote information for Word 8/9/10 files */ static void vGet8EndnotesInfo(FILE *pFile, const pps_info_type *pPPS, const ULONG *aulBBD, size_t tBBDLen, const ULONG *aulSBD, size_t tSBDLen, const UCHAR *aucHeader) { const ULONG *aulBlockDepot; UCHAR *aucBuffer; ULONG ulFileOffset, ulBeginOfText, ulOffset, ulBeginEndnoteInfo; size_t tEndnoteInfoLen, tBlockDepotLen, tBlockSize; size_t tIndex; TRACE_MSG("vGet8EndnotesInfo"); ulBeginOfText = ulGetLong(0x18, aucHeader); /* fcMin */ NO_DBG_HEX(ulBeginOfText); ulBeginEndnoteInfo = ulGetLong(0x20a, aucHeader); /* fcPlcfendRef */ NO_DBG_HEX(ulBeginEndnoteInfo); tEndnoteInfoLen = (size_t)ulGetLong(0x20e, aucHeader); /* lcbPlcfendRef */ NO_DBG_DEC(tEndnoteInfoLen); if (tEndnoteInfoLen < 10) { DBG_MSG("No endnotes in this document"); return; } NO_DBG_DEC(pPPS->tTable.ulSB); NO_DBG_HEX(pPPS->tTable.ulSize); if (pPPS->tTable.ulSize == 0) { DBG_MSG("No endnotes information"); return; } if (pPPS->tTable.ulSize < MIN_SIZE_FOR_BBD_USE) { /* Use the Small Block Depot */ aulBlockDepot = aulSBD; tBlockDepotLen = tSBDLen; tBlockSize = SMALL_BLOCK_SIZE; } else { /* Use the Big Block Depot */ aulBlockDepot = aulBBD; tBlockDepotLen = tBBDLen; tBlockSize = BIG_BLOCK_SIZE; } aucBuffer = xmalloc(tEndnoteInfoLen); if (!bReadBuffer(pFile, pPPS->tTable.ulSB, aulBlockDepot, tBlockDepotLen, tBlockSize, aucBuffer, ulBeginEndnoteInfo, tEndnoteInfoLen)) { aucBuffer = xfree(aucBuffer); return; } NO_DBG_PRINT_BLOCK(aucBuffer, tEndnoteInfoLen); fail(tEndnoteListLength != 0); tEndnoteListLength = (tEndnoteInfoLen - 4) / 6; fail(tEndnoteListLength == 0); fail(aulEndnoteList != NULL); aulEndnoteList = xcalloc(tEndnoteListLength, sizeof(ULONG)); for (tIndex = 0; tIndex < tEndnoteListLength; tIndex++) { ulOffset = ulGetLong(tIndex * 4, aucBuffer); NO_DBG_HEX(ulOffset); ulFileOffset = ulCharPos2FileOffset(ulBeginOfText + ulOffset); NO_DBG_HEX(ulFileOffset); aulEndnoteList[tIndex] = ulFileOffset; } aucBuffer = xfree(aucBuffer); } /* end of vGet8EndnotesInfo */ /* * Build the lists with footnote and endnote information for Word 8/9/10 files */ static void vGet8NotesInfo(FILE *pFile, const pps_info_type *pPPS, const ULONG *aulBBD, size_t tBBDLen, const ULONG *aulSBD, size_t tSBDLen, const UCHAR *aucHeader) { TRACE_MSG("vGet8NotesInfo"); vGet8FootnotesInfo(pFile, pPPS, aulBBD, tBBDLen, aulSBD, tSBDLen, aucHeader); vGet8FootnotesText(pFile, pPPS, aulBBD, tBBDLen, aulSBD, tSBDLen, aucHeader); vGet8EndnotesInfo(pFile, pPPS, aulBBD, tBBDLen, aulSBD, tSBDLen, aucHeader); } /* end of vGet8NotesInfo */ /* * Build the lists with footnote and endnote information */ void vGetNotesInfo(FILE *pFile, const pps_info_type *pPPS, const ULONG *aulBBD, size_t tBBDLen, const ULONG *aulSBD, size_t tSBDLen, const UCHAR *aucHeader, int iWordVersion) { TRACE_MSG("vGetNotesInfo"); fail(pFile == NULL); fail(pPPS == NULL && iWordVersion >= 6); fail(aulBBD == NULL && tBBDLen != 0); fail(aulSBD == NULL && tSBDLen != 0); fail(aucHeader == NULL); switch (iWordVersion) { case 0: vGet0NotesInfo(pFile, aucHeader); break; case 1: case 2: vGet2NotesInfo(pFile, aucHeader); break; case 4: case 5: break; case 6: case 7: vGet6NotesInfo(pFile, pPPS->tWordDocument.ulSB, aulBBD, tBBDLen, aucHeader); break; case 8: vGet8NotesInfo(pFile, pPPS, aulBBD, tBBDLen, aulSBD, tSBDLen, aucHeader); break; default: werr(0, "Sorry, no notes information"); break; } } /* end of vGetNotesInfo */ /* * vPrepareFootnoteText - prepare the footnote text */ void vPrepareFootnoteText(FILE *pFile) { footnote_local_type *pCurr; size_t tFootnote; fail(pFile == NULL); fail(pFootnoteText == NULL && tFootnoteTextLength != 0); if (pFootnoteText == NULL || tFootnoteTextLength == 0) { /* No information */ return; } /* Fill text and useful-ness */ for (tFootnote = 0; tFootnote < tFootnoteTextLength; tFootnote++) { pCurr = pFootnoteText + tFootnote; pCurr->bUseful = pCurr->ulCharPosStart != pCurr->ulCharPosNext; if (pCurr->bUseful) { pCurr->tInfo.szText = szFootnoteDecryptor(pFile, pCurr->ulCharPosStart, pCurr->ulCharPosNext); } else { pCurr->tInfo.szText = NULL; } } } /* end of vPrepareFootnoteText */ /* * szGetFootnootText - get the text of the spefified footnote */ const char * szGetFootnootText(UINT uiFootnoteIndex) { if ((size_t)uiFootnoteIndex >= tFootnoteTextLength) { return NULL; } return pFootnoteText[uiFootnoteIndex].tInfo.szText; } /* end of szGetFootnootText */ /* * Get the notetype of the note at the given fileoffset */ notetype_enum eGetNotetype(ULONG ulFileOffset) { size_t tIndex; TRACE_MSG("eGetNotetype"); fail(aulFootnoteList == NULL && tFootnoteListLength != 0); fail(aulEndnoteList == NULL && tEndnoteListLength != 0); /* Go for the easy answers first */ if (tFootnoteListLength == 0 && tEndnoteListLength == 0) { return notetype_is_unknown; } if (tEndnoteListLength == 0) { return notetype_is_footnote; } if (tFootnoteListLength == 0) { return notetype_is_endnote; } /* No easy answer, so we search */ for (tIndex = 0; tIndex < tFootnoteListLength; tIndex++) { if (aulFootnoteList[tIndex] == ulFileOffset) { return notetype_is_footnote; } } for (tIndex = 0; tIndex < tEndnoteListLength; tIndex++) { if (aulEndnoteList[tIndex] == ulFileOffset) { return notetype_is_endnote; } } /* Not found */ return notetype_is_unknown; } /* end of eGetNotetype */