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11 <h1>examples/PIPS/antiword/src/wordwin.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> |
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12 <a name="l00002"></a>00002 <span class="comment"> * wordwin.c</span> |
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13 <a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2002-2005 A.J. van Os; Released under GPL</span> |
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14 <a name="l00004"></a>00004 <span class="comment"> *</span> |
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15 <a name="l00005"></a>00005 <span class="comment"> * Description:</span> |
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16 <a name="l00006"></a>00006 <span class="comment"> * Deal with the WIN internals of a MS Word file</span> |
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17 <a name="l00007"></a>00007 <span class="comment"> */</span> |
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18 <a name="l00008"></a>00008 |
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19 <a name="l00009"></a>00009 <span class="preprocessor">#include "antiword.h"</span> |
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20 <a name="l00010"></a>00010 |
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21 <a name="l00011"></a>00011 |
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22 <a name="l00012"></a>00012 <span class="comment">/*</span> |
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23 <a name="l00013"></a>00013 <span class="comment"> * bGetDocumentText - make a list of the text blocks of a Word document</span> |
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24 <a name="l00014"></a>00014 <span class="comment"> *</span> |
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25 <a name="l00015"></a>00015 <span class="comment"> * Return TRUE when succesful, otherwise FALSE</span> |
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26 <a name="l00016"></a>00016 <span class="comment"> */</span> |
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27 <a name="l00017"></a>00017 <span class="keyword">static</span> BOOL |
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28 <a name="l00018"></a>00018 bGetDocumentText(FILE *pFile, <span class="keyword">const</span> UCHAR *aucHeader) |
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29 <a name="l00019"></a>00019 { |
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30 <a name="l00020"></a>00020 text_block_type tTextBlock; |
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31 <a name="l00021"></a>00021 ULONG ulBeginOfText; |
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32 <a name="l00022"></a>00022 ULONG ulTextLen, ulFootnoteLen; |
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33 <a name="l00023"></a>00023 ULONG ulHdrFtrLen, ulMacroLen, ulAnnotationLen; |
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34 <a name="l00024"></a>00024 UINT uiQuickSaves; |
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35 <a name="l00025"></a>00025 USHORT usDocStatus; |
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36 <a name="l00026"></a>00026 BOOL bTemplate, bFastSaved, bEncrypted, bSuccess; |
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37 <a name="l00027"></a>00027 |
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38 <a name="l00028"></a>00028 fail(pFile == NULL); |
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39 <a name="l00029"></a>00029 fail(aucHeader == NULL); |
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40 <a name="l00030"></a>00030 |
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41 <a name="l00031"></a>00031 DBG_MSG(<span class="stringliteral">"bGetDocumentText"</span>); |
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42 <a name="l00032"></a>00032 |
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43 <a name="l00033"></a>00033 <span class="comment">/* Get the status flags from the header */</span> |
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44 <a name="l00034"></a>00034 usDocStatus = usGetWord(0x0a, aucHeader); |
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45 <a name="l00035"></a>00035 DBG_HEX(usDocStatus); |
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46 <a name="l00036"></a>00036 bTemplate = (usDocStatus & BIT(0)) != 0; |
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47 <a name="l00037"></a>00037 DBG_MSG_C(bTemplate, <span class="stringliteral">"This document is a Template"</span>); |
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48 <a name="l00038"></a>00038 bFastSaved = (usDocStatus & BIT(2)) != 0; |
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49 <a name="l00039"></a>00039 uiQuickSaves = (UINT)(usDocStatus & 0x00f0) >> 4; |
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50 <a name="l00040"></a>00040 DBG_MSG_C(bFastSaved, <span class="stringliteral">"This document is Fast Saved"</span>); |
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51 <a name="l00041"></a>00041 DBG_DEC_C(bFastSaved, uiQuickSaves); |
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52 <a name="l00042"></a>00042 <span class="keywordflow">if</span> (bFastSaved) { |
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53 <a name="l00043"></a>00043 werr(0, <span class="stringliteral">"Word2: fast saved documents are not supported yet"</span>); |
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54 <a name="l00044"></a>00044 <span class="keywordflow">return</span> FALSE; |
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55 <a name="l00045"></a>00045 } |
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56 <a name="l00046"></a>00046 bEncrypted = (usDocStatus & BIT(8)) != 0; |
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57 <a name="l00047"></a>00047 <span class="keywordflow">if</span> (bEncrypted) { |
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58 <a name="l00048"></a>00048 werr(0, <span class="stringliteral">"Encrypted documents are not supported"</span>); |
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59 <a name="l00049"></a>00049 <span class="keywordflow">return</span> FALSE; |
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60 <a name="l00050"></a>00050 } |
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61 <a name="l00051"></a>00051 |
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62 <a name="l00052"></a>00052 <span class="comment">/* Get length information */</span> |
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63 <a name="l00053"></a>00053 ulBeginOfText = ulGetLong(0x18, aucHeader); |
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64 <a name="l00054"></a>00054 DBG_HEX(ulBeginOfText); |
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65 <a name="l00055"></a>00055 ulTextLen = ulGetLong(0x34, aucHeader); |
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66 <a name="l00056"></a>00056 ulFootnoteLen = ulGetLong(0x38, aucHeader); |
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67 <a name="l00057"></a>00057 ulHdrFtrLen = ulGetLong(0x3c, aucHeader); |
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68 <a name="l00058"></a>00058 ulMacroLen = ulGetLong(0x40, aucHeader); |
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69 <a name="l00059"></a>00059 ulAnnotationLen = ulGetLong(0x44, aucHeader); |
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70 <a name="l00060"></a>00060 DBG_DEC(ulTextLen); |
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71 <a name="l00061"></a>00061 DBG_DEC(ulFootnoteLen); |
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72 <a name="l00062"></a>00062 DBG_DEC(ulHdrFtrLen); |
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73 <a name="l00063"></a>00063 DBG_DEC(ulMacroLen); |
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74 <a name="l00064"></a>00064 DBG_DEC(ulAnnotationLen); |
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75 <a name="l00065"></a>00065 <span class="keywordflow">if</span> (bFastSaved) { |
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76 <a name="l00066"></a>00066 bSuccess = FALSE; |
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77 <a name="l00067"></a>00067 } <span class="keywordflow">else</span> { |
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78 <a name="l00068"></a>00068 tTextBlock.ulFileOffset = ulBeginOfText; |
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79 <a name="l00069"></a>00069 tTextBlock.ulCharPos = ulBeginOfText; |
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80 <a name="l00070"></a>00070 tTextBlock.ulLength = ulTextLen + |
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81 <a name="l00071"></a>00071 ulFootnoteLen + |
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82 <a name="l00072"></a>00072 ulHdrFtrLen + ulMacroLen + ulAnnotationLen; |
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83 <a name="l00073"></a>00073 tTextBlock.bUsesUnicode = FALSE; |
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84 <a name="l00074"></a>00074 tTextBlock.usPropMod = IGNORE_PROPMOD; |
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85 <a name="l00075"></a>00075 bSuccess = bAdd2TextBlockList(&tTextBlock); |
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86 <a name="l00076"></a>00076 DBG_HEX_C(!bSuccess, tTextBlock.ulFileOffset); |
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87 <a name="l00077"></a>00077 DBG_HEX_C(!bSuccess, tTextBlock.ulCharPos); |
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88 <a name="l00078"></a>00078 DBG_DEC_C(!bSuccess, tTextBlock.ulLength); |
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89 <a name="l00079"></a>00079 DBG_DEC_C(!bSuccess, tTextBlock.bUsesUnicode); |
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90 <a name="l00080"></a>00080 DBG_DEC_C(!bSuccess, tTextBlock.usPropMod); |
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91 <a name="l00081"></a>00081 } |
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92 <a name="l00082"></a>00082 |
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93 <a name="l00083"></a>00083 <span class="keywordflow">if</span> (bSuccess) { |
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94 <a name="l00084"></a>00084 vSplitBlockList(pFile, |
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95 <a name="l00085"></a>00085 ulTextLen, |
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96 <a name="l00086"></a>00086 ulFootnoteLen, |
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97 <a name="l00087"></a>00087 ulHdrFtrLen, |
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98 <a name="l00088"></a>00088 ulMacroLen, |
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99 <a name="l00089"></a>00089 ulAnnotationLen, |
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100 <a name="l00090"></a>00090 0, |
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101 <a name="l00091"></a>00091 0, |
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102 <a name="l00092"></a>00092 0, |
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103 <a name="l00093"></a>00093 FALSE); |
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104 <a name="l00094"></a>00094 } <span class="keywordflow">else</span> { |
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105 <a name="l00095"></a>00095 vDestroyTextBlockList(); |
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106 <a name="l00096"></a>00096 werr(0, <span class="stringliteral">"I can't find the text of this document"</span>); |
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107 <a name="l00097"></a>00097 } |
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108 <a name="l00098"></a>00098 <span class="keywordflow">return</span> bSuccess; |
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109 <a name="l00099"></a>00099 } <span class="comment">/* end of bGetDocumentText */</span> |
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110 <a name="l00100"></a>00100 |
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111 <a name="l00101"></a>00101 <span class="comment">/*</span> |
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112 <a name="l00102"></a>00102 <span class="comment"> * vGetDocumentData - make a list of the data blocks of a Word document</span> |
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113 <a name="l00103"></a>00103 <span class="comment"> */</span> |
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114 <a name="l00104"></a>00104 <span class="keyword">static</span> <span class="keywordtype">void</span> |
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115 <a name="l00105"></a>00105 vGetDocumentData(FILE *pFile, <span class="keyword">const</span> UCHAR *aucHeader) |
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116 <a name="l00106"></a>00106 { |
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117 <a name="l00107"></a>00107 data_block_type tDataBlock; |
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118 <a name="l00108"></a>00108 options_type tOptions; |
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119 <a name="l00109"></a>00109 ULONG ulEndOfText, ulBeginCharInfo; |
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120 <a name="l00110"></a>00110 BOOL bFastSaved, bHasImages, bSuccess; |
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121 <a name="l00111"></a>00111 USHORT usDocStatus; |
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122 <a name="l00112"></a>00112 |
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123 <a name="l00113"></a>00113 <span class="comment">/* Get the options */</span> |
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124 <a name="l00114"></a>00114 vGetOptions(&tOptions); |
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125 <a name="l00115"></a>00115 |
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126 <a name="l00116"></a>00116 <span class="comment">/* Get the status flags from the header */</span> |
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127 <a name="l00117"></a>00117 usDocStatus = usGetWord(0x0a, aucHeader); |
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128 <a name="l00118"></a>00118 DBG_HEX(usDocStatus); |
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129 <a name="l00119"></a>00119 bFastSaved = (usDocStatus & BIT(2)) != 0; |
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130 <a name="l00120"></a>00120 bHasImages = (usDocStatus & BIT(3)) != 0; |
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131 <a name="l00121"></a>00121 |
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132 <a name="l00122"></a>00122 <span class="keywordflow">if</span> (!bHasImages || |
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133 <a name="l00123"></a>00123 tOptions.eConversionType == conversion_text || |
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134 <a name="l00124"></a>00124 tOptions.eConversionType == conversion_fmt_text || |
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135 <a name="l00125"></a>00125 tOptions.eConversionType == conversion_xml || |
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136 <a name="l00126"></a>00126 tOptions.eImageLevel == level_no_images) { |
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137 <a name="l00127"></a>00127 <span class="comment">/*</span> |
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138 <a name="l00128"></a>00128 <span class="comment"> * No images in the document or text-only output or</span> |
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139 <a name="l00129"></a>00129 <span class="comment"> * no images wanted, so no data blocks will be needed</span> |
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140 <a name="l00130"></a>00130 <span class="comment"> */</span> |
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141 <a name="l00131"></a>00131 vDestroyDataBlockList(); |
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142 <a name="l00132"></a>00132 <span class="keywordflow">return</span>; |
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143 <a name="l00133"></a>00133 } |
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144 <a name="l00134"></a>00134 |
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145 <a name="l00135"></a>00135 <span class="keywordflow">if</span> (bFastSaved) { |
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146 <a name="l00136"></a>00136 bSuccess = FALSE; |
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147 <a name="l00137"></a>00137 } <span class="keywordflow">else</span> { |
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148 <a name="l00138"></a>00138 <span class="comment">/* This datablock is too big, but it contains all images */</span> |
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149 <a name="l00139"></a>00139 ulEndOfText = ulGetLong(0x1c, aucHeader); |
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150 <a name="l00140"></a>00140 DBG_HEX(ulEndOfText); |
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151 <a name="l00141"></a>00141 ulBeginCharInfo = ulGetLong(0xa0, aucHeader); |
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152 <a name="l00142"></a>00142 DBG_HEX(ulBeginCharInfo); |
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153 <a name="l00143"></a>00143 <span class="keywordflow">if</span> (ulBeginCharInfo > ulEndOfText) { |
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154 <a name="l00144"></a>00144 tDataBlock.ulFileOffset = ulEndOfText; |
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155 <a name="l00145"></a>00145 tDataBlock.ulDataPos = ulEndOfText; |
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156 <a name="l00146"></a>00146 tDataBlock.ulLength = ulBeginCharInfo - ulEndOfText; |
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157 <a name="l00147"></a>00147 bSuccess = bAdd2DataBlockList(&tDataBlock); |
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158 <a name="l00148"></a>00148 DBG_HEX_C(!bSuccess, tDataBlock.ulFileOffset); |
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159 <a name="l00149"></a>00149 DBG_HEX_C(!bSuccess, tDataBlock.ulDataPos); |
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160 <a name="l00150"></a>00150 DBG_DEC_C(!bSuccess, tDataBlock.ulLength); |
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161 <a name="l00151"></a>00151 } <span class="keywordflow">else</span> { |
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162 <a name="l00152"></a>00152 bSuccess = ulBeginCharInfo == ulEndOfText; |
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163 <a name="l00153"></a>00153 } |
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164 <a name="l00154"></a>00154 } |
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165 <a name="l00155"></a>00155 |
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166 <a name="l00156"></a>00156 <span class="keywordflow">if</span> (!bSuccess) { |
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167 <a name="l00157"></a>00157 vDestroyDataBlockList(); |
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168 <a name="l00158"></a>00158 werr(0, <span class="stringliteral">"I can't find the data of this document"</span>); |
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169 <a name="l00159"></a>00159 } |
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170 <a name="l00160"></a>00160 } <span class="comment">/* end of vGetDocumentData */</span> |
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171 <a name="l00161"></a>00161 |
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172 <a name="l00162"></a>00162 <span class="comment">/*</span> |
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173 <a name="l00163"></a>00163 <span class="comment"> * iInitDocumentWIN - initialize an WIN document</span> |
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174 <a name="l00164"></a>00164 <span class="comment"> *</span> |
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175 <a name="l00165"></a>00165 <span class="comment"> * Returns the version of Word that made the document or -1</span> |
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176 <a name="l00166"></a>00166 <span class="comment"> */</span> |
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177 <a name="l00167"></a>00167 <span class="keywordtype">int</span> |
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178 <a name="l00168"></a>00168 iInitDocumentWIN(FILE *pFile, <span class="keywordtype">long</span> lFilesize) |
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179 <a name="l00169"></a>00169 { |
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180 <a name="l00170"></a>00170 <span class="keywordtype">int</span> iWordVersion; |
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181 <a name="l00171"></a>00171 BOOL bSuccess; |
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182 <a name="l00172"></a>00172 USHORT usIdent; |
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183 <a name="l00173"></a>00173 UCHAR aucHeader[384]; |
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184 <a name="l00174"></a>00174 |
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185 <a name="l00175"></a>00175 fail(pFile == NULL); |
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186 <a name="l00176"></a>00176 |
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187 <a name="l00177"></a>00177 <span class="keywordflow">if</span> (lFilesize < 384) { |
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188 <a name="l00178"></a>00178 <span class="keywordflow">return</span> -1; |
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189 <a name="l00179"></a>00179 } |
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190 <a name="l00180"></a>00180 |
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191 <a name="l00181"></a>00181 <span class="comment">/* Read the headerblock */</span> |
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192 <a name="l00182"></a>00182 <span class="keywordflow">if</span> (!bReadBytes(aucHeader, 384, 0x00, pFile)) { |
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193 <a name="l00183"></a>00183 <span class="keywordflow">return</span> -1; |
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194 <a name="l00184"></a>00184 } |
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195 <a name="l00185"></a>00185 <span class="comment">/* Get the "magic number" from the header */</span> |
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196 <a name="l00186"></a>00186 usIdent = usGetWord(0x00, aucHeader); |
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197 <a name="l00187"></a>00187 DBG_HEX(usIdent); |
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198 <a name="l00188"></a>00188 fail(usIdent != 0xa59b && <span class="comment">/* WinWord 1.x */</span> |
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199 <a name="l00189"></a>00189 usIdent != 0xa5db); <span class="comment">/* WinWord 2.0 */</span> |
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200 <a name="l00190"></a>00190 iWordVersion = iGetVersionNumber(aucHeader); |
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201 <a name="l00191"></a>00191 <span class="keywordflow">if</span> (iWordVersion != 1 && iWordVersion != 2) { |
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202 <a name="l00192"></a>00192 werr(0, <span class="stringliteral">"This file is not from ''Win Word 1 or 2'."</span>); |
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203 <a name="l00193"></a>00193 <span class="keywordflow">return</span> -1; |
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204 <a name="l00194"></a>00194 } |
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205 <a name="l00195"></a>00195 bSuccess = bGetDocumentText(pFile, aucHeader); |
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206 <a name="l00196"></a>00196 <span class="keywordflow">if</span> (bSuccess) { |
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207 <a name="l00197"></a>00197 vGetDocumentData(pFile, aucHeader); |
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208 <a name="l00198"></a>00198 vGetPropertyInfo(pFile, NULL, |
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209 <a name="l00199"></a>00199 NULL, 0, NULL, 0, |
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210 <a name="l00200"></a>00200 aucHeader, iWordVersion); |
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211 <a name="l00201"></a>00201 vSetDefaultTabWidth(pFile, NULL, |
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212 <a name="l00202"></a>00202 NULL, 0, NULL, 0, |
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213 <a name="l00203"></a>00203 aucHeader, iWordVersion); |
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214 <a name="l00204"></a>00204 vGetNotesInfo(pFile, NULL, |
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215 <a name="l00205"></a>00205 NULL, 0, NULL, 0, |
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216 <a name="l00206"></a>00206 aucHeader, iWordVersion); |
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217 <a name="l00207"></a>00207 } |
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218 <a name="l00208"></a>00208 <span class="keywordflow">return</span> bSuccess ? iWordVersion : -1; |
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219 <a name="l00209"></a>00209 } <span class="comment">/* end of iInitDocumentWIN */</span> |
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220 </pre></div></div> |
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