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/*
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* wordmac.c
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* Copyright (C) 2002-2004 A.J. van Os; Released under GNU GPL
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*
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* Description:
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* Deal with the MAC internals of a MS Word file
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*/
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#include "antiword.h"
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/*
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* bGetDocumentText - make a list of the text blocks of a Word document
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*
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* Return TRUE when succesful, otherwise FALSE
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*/
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static BOOL
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bGetDocumentText(FILE *pFile, const UCHAR *aucHeader)
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{
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text_block_type tTextBlock;
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ULONG ulBeginOfText, ulEndOfText;
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ULONG ulTextLen;
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UCHAR ucDocStatus;
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BOOL bFastSaved;
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fail(pFile == NULL);
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fail(aucHeader == NULL);
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DBG_MSG("bGetDocumentText");
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NO_DBG_PRINT_BLOCK(aucHeader, 0x20);
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/* Get the status flags from the header */
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ucDocStatus = ucGetByte(0x0a, aucHeader);
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DBG_HEX(ucDocStatus);
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bFastSaved = (ucDocStatus & BIT(5)) != 0;
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DBG_MSG_C(bFastSaved, "This document is Fast Saved");
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if (bFastSaved) {
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werr(0, "MacWord: fast saved documents are not supported yet");
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return FALSE;
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}
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/* Get length information */
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ulBeginOfText = ulGetLongBE(0x14, aucHeader);
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DBG_HEX(ulBeginOfText);
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ulEndOfText = ulGetLongBE(0x18, aucHeader);
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DBG_HEX(ulEndOfText);
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ulTextLen = ulEndOfText - ulBeginOfText;
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DBG_DEC(ulTextLen);
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tTextBlock.ulFileOffset = ulBeginOfText;
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tTextBlock.ulCharPos = ulBeginOfText;
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tTextBlock.ulLength = ulTextLen;
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tTextBlock.bUsesUnicode = FALSE;
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tTextBlock.usPropMod = IGNORE_PROPMOD;
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if (!bAdd2TextBlockList(&tTextBlock)) {
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DBG_HEX(tTextBlock.ulFileOffset);
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DBG_HEX(tTextBlock.ulCharPos);
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DBG_DEC(tTextBlock.ulLength);
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DBG_DEC(tTextBlock.bUsesUnicode);
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DBG_DEC(tTextBlock.usPropMod);
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return FALSE;
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}
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return TRUE;
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} /* end of bGetDocumentText */
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/*
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* iInitDocumentMAC - initialize an MAC document
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*
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* Returns the version of Word that made the document or -1
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*/
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int
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iInitDocumentMAC(FILE *pFile, long lFilesize)
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{
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int iWordVersion;
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BOOL bSuccess;
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USHORT usIdent;
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UCHAR aucHeader[256];
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fail(pFile == NULL);
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if (lFilesize < 256) {
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return -1;
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}
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/* Read the headerblock */
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if (!bReadBytes(aucHeader, 256, 0x00, pFile)) {
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return -1;
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}
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/* Get the "magic number" from the header */
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usIdent = usGetWord(0x00, aucHeader);
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DBG_HEX(usIdent);
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fail(usIdent != 0x37fe); /* MacWord 4 and 5 */
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iWordVersion = iGetVersionNumber(aucHeader);
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if (iWordVersion != 4 && iWordVersion != 5) {
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werr(0, "This file is not from ''Mac Word 4 or 5'.");
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return -1;
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}
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bSuccess = bGetDocumentText(pFile, aucHeader);
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if (bSuccess) {
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vGetPropertyInfo(pFile, NULL,
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NULL, 0, NULL, 0,
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aucHeader, iWordVersion);
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vSetDefaultTabWidth(pFile, NULL,
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NULL, 0, NULL, 0,
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aucHeader, iWordVersion);
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}
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return bSuccess ? iWordVersion : -1;
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} /* end of iInitDocumentMAC */
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