Rev 631 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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589 | diamond | 1 | ; Loading of 7z archives was ported from 7z sources (file 7zip\Archive\7z\7zIn.cpp). |
2 | ; The version 7-Zip 4.42 was used. |
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3 | ; 7-Zip is copyright (C) 1999-2006 Igor Pavlov. |
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4 | ; Assembler version as KFar plugin has been written by diamond, 2007. |
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5 | |||
6 | virtual at 0 |
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7 | file_in_7z: |
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8 | .fullname dd ? ; pointer to cp866 string |
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9 | .name dd ? |
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10 | .namelen dd ? |
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11 | .bIsDirectory db ? |
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12 | .bPseudoFolder db ? |
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13 | rb 2 |
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14 | .parent dd ? ; pointer to parent directory record |
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15 | .subfolders dd ? ; head of L2-list of subfolders [for folders] |
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16 | .subfolders.end dd ? |
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17 | .subfiles dd ? ; head of L2-list of files [for folders] |
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18 | .subfiles.end dd ? |
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19 | .NumSubItems dd ? |
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20 | .next dd ? ; next item of list of subfolders or files |
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21 | .prev dd ? ; previous item of list of subfolders or files |
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631 | diamond | 22 | .stamp dd ? |
589 | diamond | 23 | .attr dd ? |
24 | .FileCRC dd ? |
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25 | .startPos dq ? |
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26 | .CreationTime dq ? |
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27 | .LastAccessTime dq ? |
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28 | .LastWriteTime dq ? |
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29 | .UnPackSize dq ? |
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30 | .folder dd ? |
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31 | .folder_index dd ? |
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32 | .folderStart dq ? |
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33 | .bAttrDefined db ? |
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34 | .bStartPosDefined db ? |
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35 | .bCRCDefined db ? |
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36 | .bCreationTimeDefined db ? |
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37 | .bLastAccessTimeDefined db ? |
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38 | .bLastWriteTimeDefined db ? |
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39 | .bHasStream db ? |
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40 | .bAnti db ? |
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41 | .size = $ |
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42 | end virtual |
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43 | |||
44 | virtual at 0 |
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45 | handle_7z: |
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46 | .type dd ? |
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47 | .root.subfolders dd ? |
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48 | .root.subfolders.end dd ? |
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49 | .root.subfiles dd ? |
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50 | .root.subfiles.end dd ? |
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51 | .root.NumSubItems dd ? |
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52 | .curdir dd ? |
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53 | .NumFiles dd ? |
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54 | .names_buf dd ? |
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55 | .host dd ? |
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56 | .host_datetime rd 6 |
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57 | ; streams info |
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58 | .numPackStreams dd ? |
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59 | .packSizes dd ? |
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60 | .numFolders dd ? |
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61 | .unpackCRCsDefined dd ? |
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62 | .unpackCRCs dd ? |
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63 | .folders dd ? |
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64 | .last_folder dd ? |
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65 | .last_pos dq ? |
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66 | .last_context dd ? |
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67 | .last_main_stream dd ? |
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68 | .password_len dd ? ; -1 if no password defined; in characters |
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69 | .password rw password_maxlen |
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70 | .basesize = $ |
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71 | ; .size = .basesize + .NumFiles * file_in_7z.size |
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72 | end virtual |
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73 | |||
74 | iglobal |
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75 | align 4 |
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76 | empty_7z_handle: |
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77 | dd type_7z |
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78 | dd 0,0,0,0,0,0 |
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79 | endg |
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80 | |||
81 | kEnd = 0 |
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82 | kHeader = 1 |
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83 | kArchiveProperties = 2 |
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84 | kAdditionalStreamsInfo = 3 |
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85 | kMainStreamsInfo = 4 |
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86 | kFilesInfo = 5 |
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87 | kPackInfo = 6 |
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88 | kUnPackInfo = 7 |
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89 | kSubStreamsInfo = 8 |
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90 | kSize = 9 |
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91 | kCRC = 10 |
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92 | kFolder = 11 |
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93 | kCodersUnPackSize = 12 |
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94 | kNumUnPackStream = 13 |
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95 | kEmptyStream = 14 |
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96 | kEmptyFile = 15 |
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97 | kAnti = 16 |
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98 | kName = 17 |
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99 | kCreationTime = 18 |
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100 | kLastAccessTime = 19 |
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101 | kLastWriteTime = 20 |
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102 | kWinAttributes = 21 |
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103 | kComment = 22 |
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104 | kEncodedHeader = 23 |
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105 | kStartPos = 24 |
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106 | |||
107 | _7z.ReadByte: |
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108 | cmp edi, [bufend] |
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109 | jae return.err |
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110 | mov al, [edi] |
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111 | inc edi |
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112 | ret |
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113 | _7z.ReadWord: |
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114 | add edi, 2 |
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115 | cmp edi, [bufend] |
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116 | ja return.err |
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117 | mov ax, [edi-2] |
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118 | ret |
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119 | _7z.ReadDword: |
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120 | add edi, 4 |
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121 | cmp edi, [bufend] |
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122 | ja return.err |
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123 | mov eax, [edi-4] |
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124 | ret |
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125 | |||
126 | _7z.SkipSize: |
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127 | test edx, edx |
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128 | jnz return.err |
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129 | add edi, eax |
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130 | jc return.err |
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131 | cmp edi, [bufend] |
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132 | ja return.err |
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133 | ret |
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134 | |||
135 | _7z.ReadNumber: |
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136 | xor eax, eax |
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137 | push eax |
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138 | push eax |
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139 | call _7z.ReadByte |
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140 | push ecx |
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141 | xor ecx, ecx |
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142 | @@: |
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143 | add al, al |
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144 | jnc @f |
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145 | inc ecx |
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146 | jmp @b |
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147 | @@: |
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148 | shr eax, cl |
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149 | shr eax, 1 |
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150 | jz @f |
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151 | mov [esp+4+ecx], al |
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152 | @@: |
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153 | jecxz .ret |
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154 | push edx |
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155 | xor edx, edx |
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156 | @@: |
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157 | call _7z.ReadByte |
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158 | mov [esp+8+edx], al |
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159 | inc edx |
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160 | loop @b |
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161 | pop edx |
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162 | .ret: |
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163 | pop ecx |
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164 | pop eax |
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165 | pop edx |
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166 | ret |
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167 | |||
168 | _7z.ReadNum: |
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169 | push edx |
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170 | call _7z.ReadNumber |
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171 | test edx, edx |
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172 | jnz return.err |
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173 | test eax, eax |
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174 | js return.err |
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175 | pop edx |
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176 | ret |
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177 | |||
178 | open_7z: |
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179 | ; CInArchive::ReadDatabase() |
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180 | cmp byte [esi+6], 0 ; major version must be 0 |
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181 | ; minor version does not be checked ([byte +7]=2 for now) |
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182 | jz @f |
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183 | xor eax, eax |
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184 | ret |
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185 | @@: |
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186 | and [hOut], 0 |
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187 | and [_7z.FreeSubStreams], 0 |
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188 | and [_7z.tmpVector], 0 |
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189 | push esi |
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190 | add esi, 12 |
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191 | mov ecx, 20 |
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192 | call crc |
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193 | pop esi |
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194 | cmp eax, [esi+8] |
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195 | jnz .header_crc_error |
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196 | cmp dword [esi+24], 0 |
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197 | jnz .header_error |
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198 | mov edi, buffer |
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199 | mov ecx, [esi+20] |
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200 | mov [bufsize], ecx |
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201 | test ecx, ecx |
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202 | jnz .notempty |
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203 | mov eax, empty_7z_handle |
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204 | push ebp |
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205 | call [close] |
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206 | ret |
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207 | .notempty: |
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208 | cmp ecx, 1024 |
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209 | jbe @f |
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210 | call [pgalloc] |
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211 | test eax, eax |
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212 | jz .reterr |
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213 | mov edi, eax |
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214 | @@: |
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215 | mov [bufptr], edi |
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216 | lea eax, [edi+ecx] |
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217 | mov [bufend], eax |
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218 | mov eax, [esi+12] |
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219 | mov edx, [esi+16] |
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220 | add eax, 20h ; end of main header |
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221 | adc edx, 0 |
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222 | push edx |
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223 | push eax |
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224 | push 0 |
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225 | push ebp |
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226 | call [seek] |
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227 | push ecx |
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228 | push edi |
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229 | push ebp |
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230 | call [read] |
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231 | cmp eax, ecx |
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232 | jnz .header_error |
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233 | push esi |
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234 | mov esi, edi |
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235 | call crc |
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236 | pop esi |
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237 | cmp eax, [esi+28] |
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238 | jz .header_ok |
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239 | .header_crc_error: |
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240 | .header_error: |
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241 | push ContinueBtn |
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242 | push 1 |
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243 | push HeaderError_ptr |
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244 | push 1 |
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245 | call [SayErr] |
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246 | .clear: |
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247 | mov ecx, [_7z.tmpVector] |
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248 | jecxz @f |
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249 | call [pgfree] |
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250 | @@: |
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251 | mov ecx, [hOut] |
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252 | jecxz @f |
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253 | call _7z.CloseHandle |
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254 | @@: |
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255 | mov ebx, [_7z.dataVectorSize] |
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256 | test ebx, ebx |
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257 | jz @f |
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258 | call _7z.ReadAndDecodePackedStreams.free2 |
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259 | @@: |
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260 | mov ecx, [_7z.FreeSubStreams] |
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261 | jecxz @f |
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262 | call [pgfree] |
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263 | @@: |
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264 | mov ecx, [bufptr] |
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265 | cmp ecx, buffer |
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266 | jz .reterr |
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267 | call [pgfree] |
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268 | .reterr: |
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269 | or eax, -1 |
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270 | ret |
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271 | .header_ok: |
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272 | mov [_esp], esp |
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273 | mov [inStream], ebp |
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274 | .loop: |
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275 | mov [error_proc], .header_error |
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276 | mov [clear_proc], .clear |
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277 | and [_7z.dataVectorSize], 0 |
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278 | call _7z.ReadNum |
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279 | cmp eax, kHeader |
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280 | jz .found_header |
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281 | cmp eax, kEncodedHeader |
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282 | jnz .header_error |
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283 | call _7z.ReadAndDecodePackedStreams |
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284 | cmp [_7z.StreamsInfo.numFolders], 0 |
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285 | jz .free_empty |
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286 | cmp [_7z.StreamsInfo.numFolders], 1 |
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287 | jnz return.err |
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288 | mov ecx, [bufptr] |
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289 | cmp ecx, buffer |
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290 | jz @f |
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291 | call [pgfree] |
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292 | @@: |
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293 | mov edi, [_7z.unpbuf+4] |
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294 | mov [bufptr], edi |
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295 | mov ecx, [_7z.unpbuf] |
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296 | add ecx, edi |
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297 | mov [bufend], ecx |
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298 | mov [error_proc], .header_error |
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299 | mov [clear_proc], .clear |
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300 | and [_7z.dataVectorSize], 0 |
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301 | call _7z.ReadNum |
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302 | cmp eax, kHeader |
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303 | jz .found_header |
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304 | jmp return.err |
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305 | .free_empty: |
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306 | mov ecx, [bufptr] |
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307 | cmp ecx, buffer |
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308 | jz @f |
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309 | call [pgfree] |
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310 | @@: |
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311 | push [inStream] |
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312 | call [close] |
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313 | mov eax, empty_7z_handle |
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314 | ret |
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315 | .found_header: |
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316 | call _7z.ReadNum |
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317 | cmp eax, kArchiveProperties |
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318 | jnz .no_archive_props |
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319 | @@: |
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320 | call _7z.ReadNum |
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321 | test eax, eax |
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322 | jz @f |
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323 | call _7z.SkipData |
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324 | jmp @b |
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325 | @@: |
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326 | call _7z.ReadNum |
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327 | .no_archive_props: |
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328 | cmp eax, kAdditionalStreamsInfo |
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329 | jnz .no_additional_streams |
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330 | call _7z.ReadAndDecodePackedStreams |
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331 | mov eax, [_7z.unpacked] |
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332 | mov [_7z.dataVector], eax |
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333 | mov eax, [_7z.StreamsInfo.numFolders] |
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334 | mov [_7z.dataVectorSize], eax |
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335 | mov [error_proc], .header_error |
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336 | mov [clear_proc], .clear |
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337 | call _7z.ReadNum |
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338 | .no_additional_streams: |
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339 | cmp eax, kMainStreamsInfo |
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340 | jnz return.err |
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341 | call _7z.ReadStreamsInfo |
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342 | call _7z.ReadNum |
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343 | test eax, eax |
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344 | jnz .notempty2 |
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345 | .empty2: |
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346 | mov ebx, [_7z.dataVectorSize] |
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347 | test ebx, ebx |
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348 | jz @f |
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349 | call _7z.ReadAndDecodePackedStreams.free2 |
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350 | @@: |
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351 | mov ecx, [_7z.FreeSubStreams] |
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352 | jecxz @f |
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353 | call [pgfree] |
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354 | @@: |
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355 | mov ecx, [bufptr] |
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356 | cmp ecx, buffer |
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357 | jz @f |
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358 | call [pgfree] |
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359 | @@: |
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360 | push [inStream] |
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361 | call [close] |
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362 | mov eax, empty_7z_handle |
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363 | ret |
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364 | .notempty2: |
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365 | cmp eax, kFilesInfo |
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366 | jnz return.err |
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367 | call _7z.ReadNum |
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368 | test eax, eax |
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369 | jz .empty2 |
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370 | mov ebx, eax ; number of files in archive |
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371 | imul ecx, ebx, file_in_7z.size |
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372 | add ecx, handle_7z.basesize |
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373 | mov [hOut.allocated], ecx |
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374 | call [pgalloc] |
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375 | test eax, eax |
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376 | jz return.clear |
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377 | mov [hOut], eax |
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378 | mov [eax+handle_7z.type], type_7z |
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379 | mov [eax+handle_7z.NumFiles], ebx |
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380 | push edi |
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381 | lea edi, [eax+handle_7z.numPackStreams] |
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382 | mov esi, _7z.StreamsInfo |
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383 | mov ecx, 6 |
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384 | rep movsd |
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385 | or [eax+handle_7z.password_len], -1 |
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386 | or [eax+handle_7z.last_folder], -1 |
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387 | mov [eax+handle_7z.last_context], ecx |
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388 | mov [eax+handle_7z.names_buf], ecx |
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389 | mov [eax+handle_7z.host], ecx |
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390 | cmp [bPasswordDefined], cl |
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391 | jz @f |
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392 | mov ecx, [password_size] |
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393 | mov [eax+handle_7z.password_len], ecx |
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394 | lea edi, [eax+handle_7z.password] |
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395 | mov esi, password_unicode |
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396 | shr ecx, 1 |
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397 | rep movsd |
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398 | adc ecx, ecx |
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399 | rep movsw |
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400 | @@: |
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401 | lea edi, [eax+handle_7z.basesize] |
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402 | imul ecx, ebx, file_in_7z.size/4 |
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403 | xor eax, eax |
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404 | rep stosd |
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405 | pop edi |
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406 | mov eax, [_7z.StreamsInfo.SubStreamsSizes] |
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407 | mov [_7z.FreeSubStreams], eax |
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408 | mov [error_proc], .header_error |
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409 | mov [clear_proc], .clear |
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410 | mov ecx, ebx |
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411 | shl ecx, 2 |
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412 | call [pgalloc] |
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413 | test eax, eax |
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414 | jz return.clear |
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415 | push edi |
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416 | mov edi, eax |
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417 | mov [_7z.tmpVector], eax |
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418 | add eax, ebx |
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419 | mov [_7z.emptyStreams], eax |
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420 | add eax, ebx |
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421 | mov [_7z.emptyFiles], eax |
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422 | add eax, ebx |
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423 | mov [_7z.antiFiles], eax |
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424 | mov ecx, ebx |
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425 | xor eax, eax |
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426 | rep stosd |
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427 | pop edi |
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428 | mov [_7z.numEmptyStreams], eax |
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429 | .parse_header: |
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430 | call _7z.ReadNum |
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431 | test eax, eax |
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432 | jz .parse_header_done |
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433 | mov ecx, eax ; ecx = type |
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434 | call _7z.ReadNum ; eax = size |
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435 | cmp ecx, kName |
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436 | jz .parse_names |
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437 | cmp ecx, kWinAttributes |
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438 | jz .parse_winAttr |
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439 | cmp ecx, kStartPos |
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440 | jz .parse_startPos |
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441 | cmp ecx, kEmptyStream |
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442 | jz .parse_emptyStream |
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443 | cmp ecx, kEmptyFile |
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444 | jz .parse_emptyFile |
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445 | cmp ecx, kAnti |
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446 | jz .parse_anti |
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447 | cmp ecx, kCreationTime |
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448 | jz .parse_time |
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449 | cmp ecx, kLastWriteTime |
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450 | jz .parse_time |
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451 | cmp ecx, kLastAccessTime |
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452 | jz .parse_time |
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453 | xor edx, edx |
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454 | call _7z.SkipSize |
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455 | jmp .parse_header |
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456 | .parse_names: |
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457 | push eax |
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458 | call _7z.SwitchStream |
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459 | pop eax |
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460 | jz @f |
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461 | mov eax, [bufend] |
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462 | sub eax, edi |
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463 | @@: |
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464 | shr eax, 1 ; size of ANSI string is a half of size of UNICODE string |
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465 | mov ecx, eax |
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466 | call [pgalloc] |
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467 | test eax, eax |
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468 | jz return.clear |
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469 | mov ebp, eax |
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470 | mov esi, [hOut] |
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471 | mov [esi+handle_7z.names_buf], eax |
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472 | add eax, ecx |
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473 | push eax ; remember limit |
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474 | mov ecx, ebx |
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475 | add esi, handle_7z.basesize + file_in_7z.fullname |
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476 | mov [bWasWarning], 0 |
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477 | .parse_names_loop: |
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478 | mov [esi], ebp |
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479 | add esi, file_in_7z.size |
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480 | .parse_names_loop_int: |
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481 | cmp ebp, [esp] |
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482 | jae return.err |
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483 | call _7z.ReadWord |
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484 | ; UNICODE char -> cp866 char |
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485 | cmp ax, 0x80 |
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486 | jb .id |
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487 | cmp ax, 0x401 |
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488 | jz .yo1 |
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489 | cmp ax, 0x451 |
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490 | jz .yo2 |
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491 | cmp ax, 0x410 |
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492 | jb .unk |
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493 | cmp ax, 0x440 |
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494 | jb .rus1 |
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495 | cmp ax, 0x450 |
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496 | jb .rus2 |
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497 | .unk: |
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498 | cmp [bWasWarning], 0 |
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499 | jnz @f |
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500 | push ContinueBtn |
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501 | push 1 |
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502 | push aEncodingProblem_str_ptr |
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503 | push 3 |
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504 | push aEncodingProblem |
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505 | call [Message] |
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506 | inc [bWasWarning] |
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507 | @@: |
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508 | mov al, '_' |
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509 | jmp .id |
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510 | .yo1: |
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511 | mov al, 'ð' |
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512 | jmp .id |
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513 | .yo2: |
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514 | mov al, 'ñ' |
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515 | jmp .id |
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516 | .rus1: |
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517 | ; 0x410-0x43F -> 0x80-0xAF |
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518 | add al, 0x70 |
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519 | jmp .id |
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520 | .rus2: |
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521 | ; 0x440-0x44F -> 0xE0-0xEF |
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522 | add al, 0xA0 |
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523 | .id: |
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524 | mov [ebp], al |
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525 | inc ebp |
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526 | test al, al |
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527 | jnz .parse_names_loop_int |
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528 | loop .parse_names_loop |
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529 | pop eax |
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530 | call _7z.UnswitchStream |
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531 | jmp .parse_header |
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532 | .parse_winAttr: |
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533 | mov edx, [_7z.tmpVector] |
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534 | push ebx |
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535 | mov ecx, ebx |
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536 | mov ebx, edx |
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537 | call _7z.ReadBoolVector2 |
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538 | pop ebx |
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539 | call _7z.SwitchStream |
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540 | mov esi, [hOut] |
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541 | add esi, handle_7z.basesize |
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542 | mov ecx, ebx |
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543 | .winAttrLoop: |
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544 | mov al, [edx] |
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545 | inc edx |
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546 | mov [esi+file_in_7z.bAttrDefined], al |
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547 | test al, al |
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548 | jz @f |
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549 | call _7z.ReadDword |
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550 | mov [esi+file_in_7z.attr], eax |
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551 | @@: |
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552 | add esi, file_in_7z.size |
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553 | loop .winAttrLoop |
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554 | call _7z.UnswitchStream |
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555 | jmp .parse_header |
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556 | .parse_startPos: |
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557 | mov edx, [_7z.tmpVector] |
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558 | push ebx |
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559 | mov ecx, ebx |
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560 | mov ebx, edx |
||
561 | call _7z.ReadBoolVector2 |
||
562 | pop ebx |
||
563 | call _7z.SwitchStream |
||
564 | mov esi, [hOut] |
||
565 | add esi, handle_7z.basesize |
||
566 | mov ecx, ebx |
||
567 | .startPosLoop: |
||
568 | mov al, [edx] |
||
569 | inc edx |
||
570 | mov [esi+file_in_7z.bStartPosDefined], al |
||
571 | test al, al |
||
572 | jz @f |
||
573 | call _7z.ReadDword |
||
574 | mov dword [esi+file_in_7z.startPos], eax |
||
575 | call _7z.ReadDword |
||
576 | mov dword [esi+file_in_7z.startPos+4], eax |
||
577 | @@: |
||
578 | add esi, file_in_7z.size |
||
579 | loop .startPosLoop |
||
580 | call _7z.UnswitchStream |
||
581 | jmp .parse_header |
||
582 | .parse_emptyStream: |
||
583 | mov edx, [_7z.emptyStreams] |
||
584 | push ebx |
||
585 | mov ecx, ebx |
||
586 | mov ebx, edx |
||
587 | call _7z.ReadBoolVector |
||
588 | pop ebx |
||
589 | and [_7z.numEmptyStreams], 0 |
||
590 | mov ecx, ebx |
||
591 | .emptyStrLoop: |
||
592 | cmp byte [edx], 0 |
||
593 | jz @f |
||
594 | inc [_7z.numEmptyStreams] |
||
595 | @@: |
||
596 | inc edx |
||
597 | loop .emptyStrLoop |
||
598 | jmp .parse_header |
||
599 | .parse_emptyFile: |
||
600 | push ebx |
||
601 | mov ecx, [_7z.numEmptyStreams] |
||
602 | mov ebx, [_7z.emptyFiles] |
||
603 | call _7z.ReadBoolVector |
||
604 | pop ebx |
||
605 | jmp .parse_header |
||
606 | .parse_anti: |
||
607 | push ebx |
||
608 | mov ecx, [_7z.numEmptyStreams] |
||
609 | mov ebx, [_7z.antiFiles] |
||
610 | call _7z.ReadBoolVector |
||
611 | pop ebx |
||
612 | jmp .parse_header |
||
613 | .parse_time: |
||
614 | push ecx |
||
615 | push ebx |
||
616 | mov ecx, ebx |
||
617 | mov ebx, [_7z.tmpVector] |
||
618 | call _7z.ReadBoolVector2 |
||
619 | pop ebx |
||
620 | call _7z.SwitchStream |
||
621 | mov esi, [hOut] |
||
622 | add esi, handle_7z.basesize |
||
623 | xor ecx, ecx |
||
624 | .timeLoop: |
||
625 | mov eax, [_7z.tmpVector] |
||
626 | mov al, [eax+ecx] |
||
627 | pop edx |
||
628 | push edx |
||
629 | mov [esi + file_in_7z.bCreationTimeDefined + edx - kCreationTime], al |
||
630 | test al, al |
||
631 | jz @f |
||
632 | call _7z.ReadDword |
||
633 | push eax |
||
634 | call _7z.ReadDword |
||
635 | mov edx, eax |
||
636 | pop eax |
||
637 | push edi |
||
638 | mov edi, [esp+4] |
||
639 | lea edi, [esi + file_in_7z.CreationTime + (edi-kCreationTime)*8] |
||
640 | call ntfs_datetime_to_bdfe |
||
641 | pop edi |
||
642 | @@: |
||
643 | add esi, file_in_7z.size |
||
644 | inc ecx |
||
645 | cmp ecx, ebx |
||
646 | jb .timeLoop |
||
647 | call _7z.UnswitchStream |
||
648 | pop eax |
||
649 | jmp .parse_header |
||
650 | .parse_header_done: |
||
651 | xor ecx, ecx ; index in emptyFiles |
||
652 | xor edx, edx ; index in subStreams |
||
653 | xor ebp, ebp ; index in files |
||
654 | mov esi, [hOut] |
||
655 | add esi, handle_7z.basesize |
||
656 | .filesLoop: |
||
657 | mov eax, [_7z.emptyStreams] |
||
658 | mov al, [eax+ebp] |
||
659 | xor al, 1 |
||
660 | mov [esi+file_in_7z.bHasStream], al |
||
661 | jz .nostream |
||
662 | mov [esi+file_in_7z.bIsDirectory], 0 |
||
663 | mov [esi+file_in_7z.bAnti], 0 |
||
664 | mov eax, [_7z.StreamsInfo.SubStreamsSizes] |
||
665 | push dword [eax+edx*8] |
||
666 | pop dword [esi+file_in_7z.UnPackSize] |
||
667 | push dword [eax+edx*8+4] |
||
668 | pop dword [esi+file_in_7z.UnPackSize+4] |
||
669 | mov eax, [_7z.StreamsInfo.SubStreamsCRCsDefined] |
||
670 | mov al, [eax+edx] |
||
671 | mov [esi+file_in_7z.bCRCDefined], al |
||
672 | test al, al |
||
673 | jz @f |
||
674 | mov eax, [_7z.StreamsInfo.SubStreamsCRCs] |
||
675 | mov eax, [eax+edx*4] |
||
676 | mov [esi+file_in_7z.FileCRC], eax |
||
677 | @@: |
||
678 | inc edx |
||
679 | jmp .filesCont |
||
680 | .nostream: |
||
681 | mov eax, [_7z.emptyFiles] |
||
682 | cmp byte [eax+ecx], 0 |
||
683 | setz [esi+file_in_7z.bIsDirectory] |
||
684 | mov eax, [_7z.antiFiles] |
||
685 | cmp byte [eax+ecx], 0 |
||
686 | setnz [esi+file_in_7z.bAnti] |
||
687 | and dword [esi+file_in_7z.UnPackSize], 0 |
||
688 | and dword [esi+file_in_7z.UnPackSize+4], 0 |
||
689 | mov [esi+file_in_7z.bCRCDefined], 0 |
||
690 | inc ecx |
||
691 | .filesCont: |
||
692 | inc ebp |
||
693 | add esi, file_in_7z.size |
||
694 | dec ebx |
||
695 | jnz .filesLoop |
||
696 | mov ecx, [_7z.tmpVector] |
||
697 | call [pgfree] |
||
698 | and [_7z.tmpVector], 0 |
||
699 | mov ebx, [_7z.dataVectorSize] |
||
700 | test ebx, ebx |
||
701 | jz @f |
||
702 | call _7z.ReadAndDecodePackedStreams.free2 |
||
703 | and [_7z.dataVectorSize], 0 |
||
704 | @@: |
||
705 | mov ecx, [_7z.FreeSubStreams] |
||
706 | jecxz @f |
||
707 | call [pgfree] |
||
708 | and [_7z.FreeSubStreams], 0 |
||
709 | @@: |
||
710 | mov ecx, [bufptr] |
||
711 | cmp ecx, buffer |
||
712 | jz @f |
||
713 | call [pgfree] |
||
714 | mov [bufptr], buffer |
||
715 | @@: |
||
716 | xor esi, esi ; index of folder |
||
717 | mov edi, [hOut] |
||
718 | mov ebx, [edi+handle_7z.NumFiles] |
||
719 | add edi, handle_7z.basesize ; pointer to fileinfo |
||
720 | push 0 ; start index of packed stream for folder |
||
721 | .getfoldersloop0: |
||
722 | xor edx, edx ; index in folder |
||
723 | push edx edx ; position in folder |
||
724 | .getfoldersloop: |
||
725 | dec ebx |
||
726 | js .getfoldersdone |
||
727 | cmp [edi+file_in_7z.bHasStream], 0 |
||
728 | jnz @f |
||
729 | test edx, edx |
||
730 | jz .nofolder |
||
731 | @@: |
||
732 | test edx, edx |
||
733 | jnz .notfirst |
||
734 | ; skip empty folders |
||
735 | @@: |
||
736 | mov eax, [hOut] |
||
737 | cmp esi, [eax+handle_7z.numFolders] |
||
738 | jae return.err |
||
739 | mov eax, [eax+handle_7z.folders] |
||
740 | mov eax, [eax+esi*4] |
||
741 | cmp edx, [eax+_7z.StreamsInfo.numUnPackStreams] |
||
742 | jb @f |
||
743 | inc esi |
||
744 | jmp @b |
||
745 | @@: |
||
746 | .notfirst: |
||
747 | mov [edi+file_in_7z.folder], esi |
||
748 | mov [edi+file_in_7z.folder_index], edx |
||
749 | mov eax, [esp] |
||
750 | mov dword [edi+file_in_7z.folderStart], eax |
||
751 | mov eax, [esp+4] |
||
752 | mov dword [edi+file_in_7z.folderStart+4], eax |
||
753 | mov ecx, dword [edi+file_in_7z.UnPackSize] |
||
754 | add [esp], ecx |
||
755 | mov ecx, dword [edi+file_in_7z.UnPackSize+4] |
||
756 | adc [esp+4], ecx |
||
757 | add edi, file_in_7z.size |
||
758 | inc edx |
||
759 | mov eax, [hOut] |
||
760 | mov eax, [eax+handle_7z.folders] |
||
761 | mov eax, [eax+esi*4] |
||
762 | cmp edx, [eax+_7z.StreamsInfo.numUnPackStreams] |
||
763 | jb .getfoldersloop |
||
764 | inc esi |
||
765 | pop edx edx |
||
766 | jmp .getfoldersloop0 |
||
767 | .nofolder: |
||
768 | push -1 |
||
769 | pop eax |
||
770 | mov [edi+file_in_7z.folder], eax |
||
771 | mov [edi+file_in_7z.folder_index], eax |
||
772 | mov dword [edi+file_in_7z.folderStart], eax |
||
773 | mov dword [edi+file_in_7z.folderStart+4], eax |
||
774 | add edi, file_in_7z.size |
||
775 | jmp .getfoldersloop |
||
776 | .getfoldersdone: |
||
777 | pop eax eax eax |
||
778 | mov ebp, [hOut] |
||
779 | mov esi, [ebp+handle_7z.folders] |
||
780 | xor ebx, ebx |
||
781 | cmp ebx, [ebp+handle_7z.numFolders] |
||
782 | jae .getoffsdone |
||
783 | .getoffsloop: |
||
784 | lodsd |
||
785 | test ebx, ebx |
||
786 | jnz .getoffs2 |
||
787 | mov edx, dword [_7z.StreamsInfo.dataOffset] |
||
788 | mov dword [eax+_7z.StreamsInfo.packOffset], edx |
||
789 | mov edx, dword [_7z.StreamsInfo.dataOffset+4] |
||
790 | mov dword [eax+_7z.StreamsInfo.packOffset+4], edx |
||
791 | jmp .getoffscont |
||
792 | .getoffs2: |
||
793 | mov ecx, [esi-8] |
||
794 | mov edx, dword [ecx+_7z.StreamsInfo.packOffset] |
||
795 | mov dword [eax+_7z.StreamsInfo.packOffset], edx |
||
796 | mov edx, dword [ecx+_7z.StreamsInfo.packOffset+4] |
||
797 | mov dword [eax+_7z.StreamsInfo.packOffset+4], edx |
||
798 | mov edi, [ecx+_7z.StreamsInfo.startPackedStream] |
||
799 | mov ecx, [ecx+_7z.StreamsInfo.numPackedStreams] |
||
800 | push ecx |
||
801 | add ecx, edi |
||
802 | cmp ecx, [ebp+handle_7z.numPackStreams] |
||
803 | ja return.err |
||
804 | pop ecx |
||
805 | shl edi, 3 |
||
806 | add edi, [ebp+handle_7z.packSizes] |
||
807 | @@: |
||
808 | dec ecx |
||
809 | js @f |
||
810 | mov edx, [edi] |
||
811 | add dword [eax+_7z.StreamsInfo.packOffset], edx |
||
812 | mov edx, [edi+4] |
||
813 | adc dword [eax+_7z.StreamsInfo.packOffset+4], edx |
||
814 | add edi, 8 |
||
815 | jmp @b |
||
816 | @@: |
||
817 | .getoffscont: |
||
818 | inc ebx |
||
819 | cmp ebx, [ebp+handle_7z.numFolders] |
||
820 | jb .getoffsloop |
||
821 | .getoffsdone: |
||
822 | mov edx, [hOut] |
||
823 | mov ebx, [edx+handle_7z.NumFiles] |
||
824 | lea edi, [edx+handle_7z.root.subfolders] |
||
825 | add edx, handle_7z.basesize |
||
826 | push file_in_7z.size |
||
827 | call init_file_links |
||
828 | mov eax, [hOut] |
||
829 | and [eax+handle_7z.curdir], 0 ; set root directory |
||
830 | mov esi, [inStream] |
||
831 | mov [eax+handle_7z.host], esi |
||
832 | lea edi, [eax+handle_7z.host_datetime] |
||
631 | diamond | 833 | mov esi, [esp+12] |
589 | diamond | 834 | add esi, 8 |
835 | mov ecx, 6 |
||
836 | rep movsd |
||
837 | ret |
||
838 | |||
839 | _7z.CloseHandle: |
||
840 | mov esi, ecx |
||
841 | push [esi+handle_7z.host] |
||
842 | call [close] |
||
843 | mov ecx, [esi+handle_7z.packSizes] |
||
844 | call [pgfree] |
||
845 | mov ecx, [esi+handle_7z.folders] |
||
846 | call [pgfree] |
||
847 | mov ecx, [esi+handle_7z.names_buf] |
||
848 | call [pgfree] |
||
849 | mov ecx, [esi+handle_7z.last_context] |
||
850 | jecxz @f |
||
851 | call [pgfree] |
||
852 | @@: |
||
853 | mov ecx, esi |
||
854 | call [pgfree] |
||
855 | ret |
||
856 | |||
857 | close_7z: |
||
858 | mov ecx, [esp+4] |
||
859 | cmp ecx, empty_7z_handle |
||
860 | jz @f |
||
861 | call _7z.CloseHandle |
||
862 | @@: |
||
863 | ret 4 |
||
864 | |||
865 | uglobal |
||
866 | align 4 |
||
867 | _7z.unpacked dd ? |
||
868 | _7z.unpbuf rd 2*8 |
||
869 | _7z.CurInStream dd ? |
||
870 | _7z.dataVector dd ? |
||
871 | _7z.dataVectorSize dd ? |
||
872 | _7z.FreeSubStreams dd ? |
||
873 | _7z.tmpVector dd ? |
||
874 | _7z.emptyStreams dd ? |
||
875 | _7z.numEmptyStreams dd ? |
||
876 | _7z.emptyFiles dd ? |
||
877 | _7z.antiFiles dd ? |
||
878 | endg |
||
879 | |||
880 | _7z.ReadAndDecodePackedStreams: |
||
881 | call _7z.ReadStreamsInfo |
||
882 | mov ecx, [_7z.StreamsInfo.numFolders] |
||
883 | test ecx, ecx |
||
884 | jz .ret2 |
||
885 | push ecx |
||
886 | mov ecx, [_7z.StreamsInfo.SubStreamsSizes] |
||
887 | jecxz @f |
||
888 | call [pgfree] |
||
889 | and [_7z.StreamsInfo.SubStreamsSizes], 0 |
||
890 | @@: |
||
891 | pop ecx |
||
892 | mov eax, _7z.unpbuf |
||
893 | cmp ecx, 8 |
||
894 | jbe .1 |
||
895 | shl ecx, 3 |
||
896 | call [pgalloc] |
||
897 | test eax, eax |
||
898 | jz return.clear |
||
899 | mov esi, eax |
||
900 | @@: |
||
901 | and dword [esi], 0 |
||
902 | add esi, 4 |
||
903 | sub ecx, 4 |
||
904 | jnz @b |
||
905 | .1: |
||
906 | mov [_7z.unpacked], eax |
||
907 | mov esi, eax |
||
908 | xor ecx, ecx |
||
909 | mov [_7z.CurInStream], ecx |
||
910 | mov [error_proc], .error |
||
911 | mov [clear_proc], .clear |
||
912 | .loop: |
||
913 | mov eax, [_7z.StreamsInfo.folders] |
||
914 | mov ebx, [eax+ecx*4] |
||
915 | call _7z.GetUnPackSize |
||
916 | test edx, edx |
||
917 | jnz return.err |
||
918 | test eax, eax |
||
919 | js return.err |
||
920 | push ecx |
||
921 | mov [esi], eax |
||
922 | mov [_7z.decode.outBufferSize], eax |
||
923 | mov ecx, eax |
||
924 | call [pgalloc] |
||
925 | test eax, eax |
||
926 | jz return.err |
||
927 | mov [esi+4], eax |
||
928 | mov [_7z.decode.outBufferPtr], eax |
||
929 | push esi |
||
930 | call _7z.decode |
||
931 | pop esi |
||
932 | pop ecx |
||
933 | push ecx |
||
934 | mov eax, [_7z.StreamsInfo.unpackCRCsDefined] |
||
935 | cmp byte [eax+ecx], 0 |
||
936 | jz @f |
||
937 | push esi |
||
938 | mov ecx, [esi] |
||
939 | mov esi, [esi+4] |
||
940 | call crc |
||
941 | pop esi |
||
942 | pop ecx |
||
943 | push ecx |
||
944 | mov edx, [_7z.StreamsInfo.unpackCRCs] |
||
945 | cmp [edx+ecx*4], eax |
||
946 | jnz return.err |
||
947 | @@: |
||
948 | add esi, 8 |
||
949 | pop ecx |
||
950 | inc ecx |
||
951 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
952 | jb .loop |
||
953 | .ret: |
||
954 | mov ecx, [_7z.StreamsInfo.folders] |
||
955 | call [pgfree] |
||
956 | mov [error_proc], .error2 |
||
957 | mov [clear_proc], .clear2 |
||
958 | .ret2: |
||
959 | mov ecx, [_7z.StreamsInfo.packSizes] |
||
960 | call [pgfree] |
||
961 | ret |
||
962 | |||
963 | .error: |
||
964 | call .free |
||
965 | jmp _7z.ReadStreamsInfo.error |
||
966 | .clear: |
||
967 | call .free |
||
968 | jmp _7z.ReadStreamsInfo.clear |
||
969 | .error2: |
||
970 | call .free |
||
971 | jmp open_7z.header_error |
||
972 | .clear2: |
||
973 | call .free |
||
974 | jmp open_7z.clear |
||
975 | .free: |
||
976 | mov ebx, [_7z.StreamsInfo.numFolders] |
||
977 | .free2: |
||
978 | dec ebx |
||
979 | js @f |
||
980 | mov ecx, [_7z.unpacked] |
||
981 | mov ecx, [ecx+ebx*8+4] |
||
982 | call [pgfree] |
||
983 | jmp .free2 |
||
984 | @@: |
||
985 | mov ecx, [_7z.unpacked] |
||
986 | cmp ecx, _7z.unpbuf |
||
987 | jz @f |
||
988 | call [pgfree] |
||
989 | @@: |
||
990 | ret |
||
991 | |||
992 | _7z.GetUnPackSize: |
||
993 | xor edx, edx |
||
994 | mov eax, [ebx+_7z.StreamsInfo.numOutStreams] |
||
995 | test eax, eax |
||
996 | jz .ret |
||
997 | .scan: |
||
998 | dec eax |
||
999 | js return.err |
||
1000 | push ecx |
||
1001 | mov ecx, [ebx+_7z.StreamsInfo.numBindPairs] |
||
1002 | mov edx, [ebx+_7z.StreamsInfo.bindPairs] |
||
1003 | @@: |
||
1004 | add edx, 8 |
||
1005 | dec ecx |
||
1006 | js .found |
||
1007 | cmp [edx-4], eax |
||
1008 | jnz @b |
||
1009 | pop ecx |
||
1010 | jmp .scan |
||
1011 | .found: |
||
1012 | mov [ebx+_7z.StreamsInfo.mainOutStream], eax |
||
1013 | mov ecx, [ebx+_7z.StreamsInfo.unpackSizes] |
||
1014 | mov edx, [ecx+eax*8+4] |
||
1015 | mov eax, [ecx+eax*8] |
||
1016 | pop ecx |
||
1017 | .ret: |
||
1018 | ret |
||
1019 | |||
1020 | uglobal |
||
1021 | align 4 |
||
1022 | _7z.StreamsInfo: |
||
1023 | .numPackStreams dd ? |
||
1024 | .packSizes dd ? ; 8 bytes per item |
||
1025 | .numFolders dd ? |
||
1026 | .unpackCRCsDefined dd ? |
||
1027 | .unpackCRCs dd ? |
||
1028 | .folders dd ? |
||
1029 | .folders.size dd ? |
||
1030 | .folders.alloc dd ? |
||
1031 | .dataOffset dq ? |
||
1032 | .packCRCsDefined dd ? ; 1 byte per item |
||
1033 | .packCRCs dd ? ; 4 bytes per item |
||
1034 | virtual at 0 |
||
1035 | .numCoders dd ? |
||
1036 | .bindPairs dd ? |
||
1037 | .numBindPairs dd ? |
||
1038 | .packedStreams dd ? |
||
1039 | .numPackedStreams dd ? |
||
1040 | .startPackedStream dd ? |
||
1041 | .numOutStreams dd ? |
||
1042 | .unpackSizes dd ? |
||
1043 | .mainOutStream dd ? |
||
1044 | .numUnPackStreams dd ? |
||
1045 | .packOffset dq ? |
||
1046 | .fsz = $ |
||
1047 | end virtual |
||
1048 | .numSubStreams dd ? |
||
1049 | .SubStreamsSizes dd ? |
||
1050 | .SubStreamsCRCsDefined dd ? |
||
1051 | .SubStreamsCRCs dd ? |
||
1052 | .tmpSubStreamsCRCsDefined dd ? |
||
1053 | .tmpSubStreamsCRCs dd ? |
||
1054 | endg |
||
1055 | |||
1056 | _7z.SkipData: |
||
1057 | call _7z.ReadNumber |
||
1058 | call _7z.SkipSize |
||
1059 | ret |
||
1060 | |||
1061 | _7z.WaitAttribute: |
||
1062 | call _7z.ReadNumber |
||
1063 | cmp eax, ecx |
||
1064 | jz @f |
||
1065 | test eax, eax |
||
1066 | jz return.err |
||
1067 | call _7z.SkipData |
||
1068 | jmp _7z.WaitAttribute |
||
1069 | @@: |
||
1070 | ret |
||
1071 | |||
1072 | _7z.ReadBoolVector2: |
||
1073 | ; in: ebx->vector, ecx=size |
||
1074 | call _7z.ReadByte |
||
1075 | test al, al |
||
1076 | jz _7z.ReadBoolVector |
||
1077 | push ebx ecx |
||
1078 | jecxz .ret |
||
1079 | @@: |
||
1080 | mov byte [ebx], 1 |
||
1081 | inc ebx |
||
1082 | loop @b |
||
1083 | .ret: |
||
1084 | pop ecx ebx |
||
1085 | ret |
||
1086 | |||
1087 | _7z.ReadBoolVector: |
||
1088 | push ebx ecx |
||
1089 | jecxz .ret |
||
1090 | xor eax, eax |
||
1091 | .1: |
||
1092 | add al, al |
||
1093 | jnz @f |
||
1094 | call _7z.ReadByte |
||
1095 | stc |
||
1096 | adc al, al |
||
1097 | @@: |
||
1098 | setc byte [ebx] |
||
1099 | inc ebx |
||
1100 | loop .1 |
||
1101 | .ret: |
||
1102 | pop ecx ebx |
||
1103 | ret |
||
1104 | |||
1105 | _7z.ReadHashDigests: |
||
1106 | ; in: ebx->bool vector, esi->crc, ecx=size |
||
1107 | call _7z.ReadBoolVector2 |
||
1108 | jecxz .ret |
||
1109 | .1: |
||
1110 | xor eax, eax |
||
1111 | cmp byte [ebx], al |
||
1112 | jz @f |
||
1113 | call _7z.ReadDword |
||
1114 | @@: |
||
1115 | mov [esi], eax |
||
1116 | add esi, 4 |
||
1117 | inc ebx |
||
1118 | loop .1 |
||
1119 | .ret: |
||
1120 | ret |
||
1121 | |||
1122 | uglobal |
||
1123 | _7z.saved_edi dd ? |
||
1124 | _7z.saved_edi_end dd ? |
||
1125 | endg |
||
1126 | |||
1127 | _7z.SwitchStream: |
||
1128 | mov eax, [bufend] |
||
1129 | mov [_7z.saved_edi_end], eax |
||
1130 | call _7z.ReadByte |
||
1131 | test al, al |
||
1132 | jnz @f |
||
1133 | ret |
||
1134 | @@: |
||
1135 | call _7z.ReadNum |
||
1136 | mov [_7z.saved_edi], edi |
||
1137 | cmp eax, [_7z.dataVectorSize] |
||
1138 | jae return.err |
||
1139 | shl eax, 3 |
||
1140 | add eax, [_7z.dataVector] |
||
1141 | mov edi, [eax+4] |
||
1142 | mov eax, [eax] |
||
1143 | add eax, edi |
||
1144 | mov [bufend], eax |
||
1145 | ret |
||
1146 | |||
1147 | _7z.UnswitchStream: |
||
1148 | mov eax, [_7z.saved_edi_end] |
||
1149 | cmp eax, [bufend] |
||
1150 | jnz @f |
||
1151 | ret |
||
1152 | @@: |
||
1153 | mov [bufend], eax |
||
1154 | mov edi, [_7z.saved_edi] |
||
1155 | @@: |
||
1156 | ret |
||
1157 | |||
1158 | ; 6 ¯à®£à ¬¬¨á⮢ ¯ëâ «¨áì ª®¤ ¯®ïâì, |
||
1159 | ; Ž¤¨ ¨§ ¨å á®èñ« á 㬠, ¨ ¨å ®áâ «®áì 5. |
||
1160 | |||
1161 | _7z.ReadStreamsInfo: |
||
1162 | xor eax, eax |
||
1163 | mov [_7z.StreamsInfo.numPackStreams], eax |
||
1164 | mov [_7z.StreamsInfo.packSizes], eax |
||
1165 | mov [_7z.StreamsInfo.numFolders], eax |
||
1166 | mov [_7z.StreamsInfo.folders], eax |
||
1167 | mov [_7z.StreamsInfo.numSubStreams], eax |
||
1168 | mov [_7z.StreamsInfo.SubStreamsSizes], eax |
||
1169 | mov [_7z.StreamsInfo.tmpSubStreamsCRCsDefined], eax |
||
1170 | mov [error_proc], .error |
||
1171 | mov [clear_proc], .clear |
||
1172 | .mainloop: |
||
1173 | call _7z.ReadNum |
||
1174 | test eax, eax |
||
1175 | jz @b |
||
1176 | cmp eax, kSubStreamsInfo |
||
1177 | jz .SubStreamsInfo |
||
1178 | cmp eax, kUnPackInfo |
||
1179 | jz .UnpackInfo |
||
1180 | cmp eax, kPackInfo |
||
1181 | jnz return.err |
||
1182 | |||
1183 | .PackInfo: |
||
1184 | cmp [_7z.StreamsInfo.numPackStreams], 0 |
||
1185 | jnz return.err |
||
1186 | call _7z.ReadNumber |
||
1187 | add eax, 0x20 |
||
1188 | adc edx, 0 |
||
1189 | mov dword [_7z.StreamsInfo.dataOffset], eax |
||
1190 | mov dword [_7z.StreamsInfo.dataOffset+4], edx |
||
1191 | call _7z.ReadNum |
||
1192 | mov [_7z.StreamsInfo.numPackStreams], eax |
||
1193 | mov ecx, kSize |
||
1194 | call _7z.WaitAttribute |
||
1195 | mov ecx, [_7z.StreamsInfo.numPackStreams] |
||
1196 | imul ecx, 8+1+4 |
||
1197 | jecxz .nostreams1 |
||
1198 | call [pgalloc] |
||
1199 | test eax, eax |
||
1200 | jz return.clear |
||
1201 | mov [_7z.StreamsInfo.packSizes], eax |
||
1202 | mov ecx, [_7z.StreamsInfo.numPackStreams] |
||
1203 | push eax |
||
1204 | lea eax, [eax+ecx*8] |
||
1205 | mov [_7z.StreamsInfo.packCRCsDefined], eax |
||
1206 | mov ebx, eax |
||
1207 | add eax, ecx |
||
1208 | mov [_7z.StreamsInfo.packCRCs], eax |
||
1209 | @@: |
||
1210 | mov byte [ebx], 0 |
||
1211 | inc ebx |
||
1212 | loop @b |
||
1213 | pop eax |
||
1214 | .nostreams1: |
||
1215 | mov ecx, [_7z.StreamsInfo.numPackStreams] |
||
1216 | jecxz .noloop1 |
||
1217 | mov esi, eax |
||
1218 | @@: |
||
1219 | call _7z.ReadNumber |
||
1220 | mov [esi], eax |
||
1221 | mov [esi+4], edx |
||
1222 | add esi, 8 |
||
1223 | loop @b |
||
1224 | .noloop1: |
||
1225 | call _7z.ReadNum |
||
1226 | test eax, eax |
||
1227 | jz .mainloop |
||
1228 | cmp eax, kCRC |
||
1229 | jz .packInfo.crc |
||
1230 | call _7z.SkipData |
||
1231 | jmp .noloop1 |
||
1232 | .packInfo.crc: |
||
1233 | mov esi, [_7z.StreamsInfo.packCRCs] |
||
1234 | mov ebx, [_7z.StreamsInfo.packCRCsDefined] |
||
1235 | mov ecx, [_7z.StreamsInfo.numPackStreams] |
||
1236 | call _7z.ReadHashDigests |
||
1237 | jmp .noloop1 |
||
1238 | |||
1239 | .UnpackInfo: |
||
1240 | cmp [_7z.StreamsInfo.folders], 0 |
||
1241 | jnz return.err |
||
1242 | mov ecx, kFolder |
||
1243 | call _7z.WaitAttribute |
||
1244 | call _7z.ReadNum |
||
1245 | mov ecx, eax |
||
1246 | mov [_7z.StreamsInfo.numFolders], eax |
||
1247 | call _7z.SwitchStream |
||
1248 | test ecx, ecx |
||
1249 | jz .nofolders |
||
1250 | push ecx |
||
1251 | mov ecx, 0x1000 |
||
1252 | and [_7z.StreamsInfo.folders.size], 0 |
||
1253 | mov [_7z.StreamsInfo.folders.alloc], ecx |
||
1254 | call [pgalloc] |
||
1255 | test eax, eax |
||
1256 | jz return.clear |
||
1257 | mov [_7z.StreamsInfo.folders], eax |
||
1258 | pop ecx |
||
1259 | lea ecx, [ecx*9] |
||
1260 | call .folders_alloc |
||
1261 | xor ecx, ecx |
||
1262 | .folderloop: |
||
1263 | mov eax, [_7z.StreamsInfo.folders] |
||
1264 | push [_7z.StreamsInfo.folders.size] |
||
1265 | pop dword [eax+ecx*4] |
||
1266 | push ebp |
||
1267 | mov [_ebp], ebp |
||
1268 | push ecx |
||
1269 | mov ecx, _7z.StreamsInfo.fsz |
||
1270 | call .folders_alloc |
||
1271 | mov ebp, eax |
||
1272 | add ebp, [_7z.StreamsInfo.folders] |
||
1273 | call _7z.ReadNum |
||
1274 | mov [ebp+_7z.StreamsInfo.numCoders], eax |
||
1275 | test eax, eax |
||
1276 | jz return.err |
||
1277 | mov ecx, eax |
||
1278 | push ecx |
||
1279 | shl ecx, 2 |
||
1280 | sub ebp, [_7z.StreamsInfo.folders] |
||
1281 | call .folders_alloc |
||
1282 | add ebp, [_7z.StreamsInfo.folders] |
||
1283 | pop ecx |
||
1284 | add eax, [_7z.StreamsInfo.folders] |
||
1285 | @@: |
||
1286 | and dword [eax], 0 |
||
1287 | add eax, 4 |
||
1288 | loop @b |
||
1289 | push 0 ; numOutStreams |
||
1290 | push 0 ; numInStreams |
||
1291 | ; [folders] = array of pointers to coders info |
||
1292 | ; Format of coder info: |
||
1293 | ; dd NextCoder |
||
1294 | ; db MethodID.IDSize |
||
1295 | ; times IDSize db MethodID.ID |
||
1296 | ; dd NumInStreams |
||
1297 | ; dd NumOutStreams |
||
1298 | ; dd PropSize |
||
1299 | ; times PropSize db Properties |
||
1300 | xor esi, esi |
||
1301 | .coders_loop: |
||
1302 | call _7z.ReadByte |
||
1303 | mov dl, al |
||
1304 | and eax, 0xF |
||
1305 | lea ecx, [eax+17] |
||
1306 | sub ebp, [_7z.StreamsInfo.folders] |
||
1307 | call .folders_alloc |
||
1308 | add ebp, [_7z.StreamsInfo.folders] |
||
1309 | push eax |
||
1310 | mov ecx, [_7z.StreamsInfo.folders] |
||
1311 | lea ebx, [ebp+esi*4+_7z.StreamsInfo.fsz] |
||
1312 | @@: |
||
1313 | cmp dword [ebx], 0 |
||
1314 | jz @f |
||
1315 | mov ebx, [ebx] |
||
1316 | add ebx, ecx |
||
1317 | jmp @b |
||
1318 | @@: |
||
1319 | mov [ebx], eax |
||
1320 | pop ebx |
||
1321 | add ebx, ecx |
||
1322 | and dword [ebx], 0 |
||
1323 | add ebx, 4 |
||
1324 | mov ecx, edx |
||
1325 | and ecx, 0xF |
||
1326 | mov byte [ebx], cl |
||
1327 | inc ebx |
||
1328 | jecxz .2 |
||
1329 | @@: |
||
1330 | call _7z.ReadByte |
||
1331 | mov byte [ebx], al |
||
1332 | inc ebx |
||
1333 | loop @b |
||
1334 | .2: |
||
1335 | test dl, 10h |
||
1336 | jnz .coder_multiple_streams |
||
1337 | mov dword [ebx], 1 |
||
1338 | mov dword [ebx+4], 1 |
||
1339 | inc dword [esp] |
||
1340 | inc dword [esp+4] |
||
1341 | jmp @f |
||
1342 | .coder_multiple_streams: |
||
1343 | call _7z.ReadNum |
||
1344 | mov [ebx], eax |
||
1345 | add dword [esp], eax |
||
1346 | call _7z.ReadNum |
||
1347 | mov [ebx+4], eax |
||
1348 | add dword [esp+4], eax |
||
1349 | ; all currently defined 7z coders have 1 unpacked stream |
||
1350 | ; moreover, all reasonable coders have 1 unpacked stream |
||
1351 | ; so assume 1 output stream for unpacker - this simplifies decoding procedure |
||
1352 | cmp eax, 1 |
||
1353 | jnz return.err |
||
1354 | @@: |
||
1355 | and dword [ebx+8], 0 |
||
1356 | add ebx, 12 |
||
1357 | test dl, 20h |
||
1358 | jz .coder_no_properties |
||
1359 | call _7z.ReadNum |
||
1360 | test eax, eax |
||
1361 | jz .coder_no_properties |
||
1362 | mov [ebx-4], eax |
||
1363 | mov ecx, eax |
||
1364 | sub ebx, [_7z.StreamsInfo.folders] |
||
1365 | sub ebp, [_7z.StreamsInfo.folders] |
||
1366 | call .folders_alloc |
||
1367 | add ebp, [_7z.StreamsInfo.folders] |
||
1368 | add ebx, [_7z.StreamsInfo.folders] |
||
1369 | @@: |
||
1370 | call _7z.ReadByte |
||
1371 | mov [ebx], al |
||
1372 | inc ebx |
||
1373 | loop @b |
||
1374 | .coder_no_properties: |
||
1375 | test dl, dl |
||
1376 | js .coders_loop |
||
1377 | inc esi |
||
1378 | cmp esi, [ebp+_7z.StreamsInfo.numCoders] |
||
1379 | jb .coders_loop |
||
1380 | mov [ebp+_7z.StreamsInfo.numUnPackStreams], 1 |
||
1381 | mov eax, [esp+4] |
||
1382 | dec eax |
||
1383 | js return.err |
||
1384 | mov [ebp+_7z.StreamsInfo.numBindPairs], eax |
||
1385 | push eax |
||
1386 | mov ecx, eax |
||
1387 | shl ecx, 3 |
||
1388 | sub ebp, [_7z.StreamsInfo.folders] |
||
1389 | call .folders_alloc |
||
1390 | add ebp, [_7z.StreamsInfo.folders] |
||
1391 | mov [ebp+_7z.StreamsInfo.bindPairs], eax |
||
1392 | pop ecx |
||
1393 | jecxz .noloop3 |
||
1394 | mov esi, eax |
||
1395 | add esi, [_7z.StreamsInfo.folders] |
||
1396 | @@: |
||
1397 | call _7z.ReadNum |
||
1398 | mov [esi], eax |
||
1399 | cmp eax, [esp] |
||
1400 | jae return.err |
||
1401 | call _7z.ReadNum |
||
1402 | mov [esi+4], eax |
||
1403 | cmp eax, [esp+4] |
||
1404 | jae return.err |
||
1405 | add esi, 8 |
||
1406 | loop @b |
||
1407 | .noloop3: |
||
1408 | pop eax ; numInStreams |
||
1409 | pop edx ; numOutStreams |
||
1410 | mov [ebp+_7z.StreamsInfo.numOutStreams], edx |
||
1411 | sub eax, edx |
||
1412 | js return.err |
||
1413 | inc eax |
||
1414 | mov [ebp+_7z.StreamsInfo.numPackedStreams], eax |
||
1415 | mov ecx, eax |
||
1416 | push eax |
||
1417 | shl ecx, 2 |
||
1418 | sub ebp, [_7z.StreamsInfo.folders] |
||
1419 | call .folders_alloc |
||
1420 | add ebp, [_7z.StreamsInfo.folders] |
||
1421 | mov [ebp+_7z.StreamsInfo.packedStreams], eax |
||
1422 | pop ecx |
||
1423 | mov esi, eax |
||
1424 | add esi, [_7z.StreamsInfo.folders] |
||
1425 | cmp ecx, 1 |
||
1426 | jnz .multiplePackedStreams |
||
1427 | mov ebx, [ebp+_7z.StreamsInfo.bindPairs] |
||
1428 | add ebx, [_7z.StreamsInfo.folders] |
||
1429 | push edx |
||
1430 | xor ecx, ecx |
||
1431 | .3: |
||
1432 | push ebx |
||
1433 | mov edx, [ebp+_7z.StreamsInfo.numBindPairs] |
||
1434 | @@: |
||
1435 | dec edx |
||
1436 | js .5 |
||
1437 | cmp dword [ebx], ecx |
||
1438 | jz .4 |
||
1439 | add ebx, 8 |
||
1440 | jmp @b |
||
1441 | .4: |
||
1442 | pop ebx |
||
1443 | inc ecx |
||
1444 | jmp .3 |
||
1445 | .5: |
||
1446 | pop ebx |
||
1447 | pop edx |
||
1448 | mov [esi], ecx |
||
1449 | jmp .commonPackedStreams |
||
1450 | .multiplePackedStreams: |
||
1451 | call _7z.ReadNum |
||
1452 | mov [esi], eax |
||
1453 | add esi, 4 |
||
1454 | loop .multiplePackedStreams |
||
1455 | .commonPackedStreams: |
||
1456 | mov ecx, edx |
||
1457 | shl ecx, 3 |
||
1458 | sub ebp, [_7z.StreamsInfo.folders] |
||
1459 | call .folders_alloc |
||
1460 | add ebp, [_7z.StreamsInfo.folders] |
||
1461 | mov [ebp+_7z.StreamsInfo.unpackSizes], eax |
||
1462 | pop ecx |
||
1463 | xor edx, edx |
||
1464 | jecxz @f |
||
1465 | mov eax, [_7z.StreamsInfo.folders] |
||
1466 | mov eax, [eax+(ecx-1)*4] |
||
1467 | add eax, [_7z.StreamsInfo.folders] |
||
1468 | mov edx, [eax+_7z.StreamsInfo.numPackedStreams] |
||
1469 | add edx, [eax+_7z.StreamsInfo.startPackedStream] |
||
1470 | @@: |
||
1471 | mov [ebp+_7z.StreamsInfo.startPackedStream], edx |
||
1472 | pop ebp |
||
1473 | inc ecx |
||
1474 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
1475 | jb .folderloop |
||
1476 | .nofolders: |
||
1477 | call _7z.UnswitchStream |
||
1478 | mov ecx, kCodersUnPackSize |
||
1479 | call _7z.WaitAttribute |
||
1480 | xor ecx, ecx |
||
1481 | .6: |
||
1482 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
1483 | jae .7 |
||
1484 | mov eax, [_7z.StreamsInfo.folders] |
||
1485 | push ebp |
||
1486 | mov ebp, [eax+ecx*4] |
||
1487 | add ebp, eax |
||
1488 | mov esi, [ebp+_7z.StreamsInfo.numOutStreams] |
||
1489 | mov ebp, [ebp+_7z.StreamsInfo.unpackSizes] |
||
1490 | add ebp, [_7z.StreamsInfo.folders] |
||
1491 | @@: |
||
1492 | call _7z.ReadNumber |
||
1493 | mov dword [ebp], eax |
||
1494 | mov dword [ebp+4], edx |
||
1495 | add ebp, 8 |
||
1496 | dec esi |
||
1497 | jnz @b |
||
1498 | pop ebp |
||
1499 | inc ecx |
||
1500 | jmp .6 |
||
1501 | .7: |
||
1502 | ; convert all relative addresses to pointers |
||
1503 | xor ecx, ecx |
||
1504 | mov edx, [_7z.StreamsInfo.folders] |
||
1505 | .8: |
||
1506 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
1507 | jae .9 |
||
1508 | lea eax, [edx+ecx*4] |
||
1509 | add [eax], edx |
||
1510 | mov eax, [eax] |
||
1511 | add [eax+_7z.StreamsInfo.bindPairs], edx |
||
1512 | add [eax+_7z.StreamsInfo.packedStreams], edx |
||
1513 | add [eax+_7z.StreamsInfo.unpackSizes], edx |
||
1514 | mov ebx, [eax+_7z.StreamsInfo.numCoders] |
||
1515 | add eax, _7z.StreamsInfo.fsz |
||
1516 | inc ecx |
||
1517 | .11: |
||
1518 | dec ebx |
||
1519 | js .8 |
||
1520 | push eax |
||
1521 | @@: |
||
1522 | cmp dword [eax], 0 |
||
1523 | jz @f |
||
1524 | add [eax], edx |
||
1525 | mov eax, [eax] |
||
1526 | jmp @b |
||
1527 | @@: |
||
1528 | pop eax |
||
1529 | add eax, 4 |
||
1530 | jmp .11 |
||
1531 | .9: |
||
1532 | ; done |
||
1533 | mov eax, [_7z.StreamsInfo.numFolders] |
||
1534 | lea edx, [edx+eax*4] |
||
1535 | mov [_7z.StreamsInfo.unpackCRCsDefined], edx |
||
1536 | add edx, eax |
||
1537 | mov [_7z.StreamsInfo.unpackCRCs], edx |
||
1538 | @@: |
||
1539 | call _7z.ReadNum |
||
1540 | test eax, eax |
||
1541 | jz .mainloop |
||
1542 | cmp eax, kCRC |
||
1543 | jz .unpackInfo.crc |
||
1544 | call _7z.SkipData |
||
1545 | jmp @b |
||
1546 | .unpackInfo.crc: |
||
1547 | mov esi, [_7z.StreamsInfo.unpackCRCs] |
||
1548 | mov ebx, [_7z.StreamsInfo.unpackCRCsDefined] |
||
1549 | mov ecx, [_7z.StreamsInfo.numFolders] |
||
1550 | call _7z.ReadHashDigests |
||
1551 | jmp @b |
||
1552 | |||
1553 | .SubStreamsInfo: |
||
1554 | cmp [_7z.StreamsInfo.numFolders], 0 |
||
1555 | jz return.err |
||
1556 | cmp [_7z.StreamsInfo.numSubStreams], 0 |
||
1557 | jnz return.err |
||
1558 | mov ebx, [_7z.StreamsInfo.folders] |
||
1559 | .ssloop1: |
||
1560 | call _7z.ReadNum |
||
1561 | cmp eax, kNumUnPackStream |
||
1562 | jz .NumUnPackStream |
||
1563 | cmp eax, kCRC |
||
1564 | jz .break1 |
||
1565 | cmp eax, kSize |
||
1566 | jz .break1 |
||
1567 | test eax, eax |
||
1568 | jz .break1 |
||
1569 | call _7z.SkipData |
||
1570 | jmp .ssloop1 |
||
1571 | .NumUnPackStream: |
||
1572 | xor ecx, ecx |
||
1573 | @@: |
||
1574 | call _7z.ReadNum |
||
1575 | mov edx, [ebx+ecx*4] |
||
1576 | mov [edx+_7z.StreamsInfo.numUnPackStreams], eax |
||
1577 | inc ecx |
||
1578 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
1579 | jb @b |
||
1580 | jmp .ssloop1 |
||
1581 | .break1: |
||
1582 | ; calculate number of substreams and number of defined digests |
||
1583 | xor ecx, ecx |
||
1584 | xor ebp, ebp |
||
1585 | push 0 |
||
1586 | push eax |
||
1587 | xor eax, eax |
||
1588 | .ssloop2: |
||
1589 | mov edx, [ebx+ecx*4] |
||
1590 | mov edx, [edx+_7z.StreamsInfo.numUnPackStreams] |
||
1591 | cmp edx, 1 |
||
1592 | jz @f |
||
1593 | inc ebp |
||
1594 | @@: |
||
1595 | add eax, edx |
||
1596 | jc return.err |
||
1597 | cmp edx, 1 |
||
1598 | jnz @f |
||
1599 | push eax |
||
1600 | mov eax, [_7z.StreamsInfo.unpackCRCsDefined] |
||
1601 | cmp byte [eax+ecx], 0 |
||
1602 | pop eax |
||
1603 | jz @f |
||
1604 | xor edx, edx |
||
1605 | @@: |
||
1606 | add [esp+4], edx |
||
1607 | inc ecx |
||
1608 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
1609 | jb .ssloop2 |
||
1610 | mov [_7z.StreamsInfo.numSubStreams], eax |
||
1611 | imul ecx, eax, 4+8+1 |
||
1612 | jecxz .noss1 |
||
1613 | push eax |
||
1614 | call [pgalloc] |
||
1615 | pop ecx |
||
1616 | test eax, eax |
||
1617 | jz return.clear |
||
1618 | mov [_7z.StreamsInfo.SubStreamsSizes], eax |
||
1619 | lea eax, [eax+ecx*8] |
||
1620 | mov [_7z.StreamsInfo.SubStreamsCRCsDefined], eax |
||
1621 | add eax, ecx |
||
1622 | mov [_7z.StreamsInfo.SubStreamsCRCs], eax |
||
1623 | @@: |
||
1624 | dec eax |
||
1625 | mov byte [eax], 0 |
||
1626 | loop @b |
||
1627 | .noss1: |
||
1628 | mov ecx, [esp+4] |
||
1629 | jecxz @f |
||
1630 | imul ecx, 4+1 |
||
1631 | call [pgalloc] |
||
1632 | test eax, eax |
||
1633 | jz return.clear |
||
1634 | mov [_7z.StreamsInfo.tmpSubStreamsCRCsDefined], eax |
||
1635 | add eax, [esp+4] |
||
1636 | mov [_7z.StreamsInfo.tmpSubStreamsCRCs], eax |
||
1637 | @@: |
||
1638 | test ebp, ebp |
||
1639 | jz @f |
||
1640 | cmp dword [esp], kSize |
||
1641 | jnz return.err |
||
1642 | @@: |
||
1643 | xor ecx, ecx |
||
1644 | mov ebp, [_7z.StreamsInfo.SubStreamsSizes] |
||
1645 | .ssloop3: |
||
1646 | mov ebx, [_7z.StreamsInfo.folders] |
||
1647 | mov ebx, [ebx+ecx*4] |
||
1648 | mov eax, [ebx+_7z.StreamsInfo.numUnPackStreams] |
||
1649 | dec eax |
||
1650 | js .sscont3 |
||
1651 | push 0 |
||
1652 | push 0 |
||
1653 | @@: |
||
1654 | dec eax |
||
1655 | js @f |
||
1656 | push eax |
||
1657 | call _7z.ReadNumber |
||
1658 | mov [ebp], eax |
||
1659 | mov [ebp+4], edx |
||
1660 | add ebp, 8 |
||
1661 | add [esp+4], eax |
||
1662 | adc [esp+8], edx |
||
1663 | jc return.err |
||
1664 | pop eax |
||
1665 | jmp @b |
||
1666 | @@: |
||
1667 | call _7z.GetUnPackSize |
||
1668 | sub eax, [esp] |
||
1669 | sbb edx, [esp+4] |
||
1670 | jc return.err |
||
1671 | mov [ebp], eax |
||
1672 | mov [ebp+4], edx |
||
1673 | add ebp, 8 |
||
1674 | add esp, 8 |
||
1675 | .sscont3: |
||
1676 | inc ecx |
||
1677 | cmp ecx, [_7z.StreamsInfo.numFolders] |
||
1678 | jb .ssloop3 |
||
1679 | pop eax |
||
1680 | cmp eax, kSize |
||
1681 | jnz @f |
||
1682 | call _7z.ReadNum |
||
1683 | @@: |
||
1684 | cmp eax, kCRC |
||
1685 | jz .sscrc |
||
1686 | test eax, eax |
||
1687 | jz .ssend |
||
1688 | call _7z.SkipData |
||
1689 | .ssloop4: |
||
1690 | call _7z.ReadNum |
||
1691 | jmp @b |
||
1692 | .sscrc: |
||
1693 | pop ecx |
||
1694 | push ecx |
||
1695 | mov ebx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined] |
||
1696 | mov esi, [_7z.StreamsInfo.tmpSubStreamsCRCs] |
||
1697 | call _7z.ReadHashDigests |
||
1698 | xor ecx, ecx ; index in out |
||
1699 | xor edx, edx ; index in tmp |
||
1700 | push -1 |
||
1701 | pop ebx ; index in folders |
||
1702 | .ssloop5: |
||
1703 | inc ebx |
||
1704 | cmp ebx, [_7z.StreamsInfo.numFolders] |
||
1705 | jae .ssloop4 |
||
1706 | mov eax, [_7z.StreamsInfo.folders] |
||
1707 | mov ebp, [eax+ebx*4] |
||
1708 | mov ebp, [ebp+_7z.StreamsInfo.numUnPackStreams] |
||
1709 | cmp ebp, 1 |
||
1710 | jnz @f |
||
1711 | mov eax, [_7z.StreamsInfo.unpackCRCsDefined] |
||
1712 | cmp byte [eax+ebx], 0 |
||
1713 | jz @f |
||
1714 | mov esi, [_7z.StreamsInfo.SubStreamsCRCsDefined] |
||
1715 | mov byte [esi+ecx], 1 |
||
1716 | mov esi, [_7z.StreamsInfo.unpackCRCs] |
||
1717 | mov eax, [esi+ebx*4] |
||
1718 | mov esi, [_7z.StreamsInfo.SubStreamsCRCs] |
||
1719 | mov [esi+ecx*4], eax |
||
1720 | inc ecx |
||
1721 | jmp .ssloop5 |
||
1722 | @@: |
||
1723 | dec ebp |
||
1724 | js .ssloop5 |
||
1725 | mov esi, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined] |
||
1726 | mov al, [esi+edx] |
||
1727 | mov esi, [_7z.StreamsInfo.SubStreamsCRCsDefined] |
||
1728 | mov [esi+ecx], al |
||
1729 | mov esi, [_7z.StreamsInfo.tmpSubStreamsCRCs] |
||
1730 | mov eax, [esi+edx*4] |
||
1731 | mov esi, [_7z.StreamsInfo.SubStreamsCRCs] |
||
1732 | mov [esi+ecx*4], eax |
||
1733 | inc edx |
||
1734 | inc ecx |
||
1735 | jmp @b |
||
1736 | .ssend: |
||
1737 | mov ecx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined] |
||
1738 | call [pgfree] |
||
1739 | and [_7z.StreamsInfo.tmpSubStreamsCRCsDefined], 0 |
||
1740 | pop ecx |
||
1741 | jmp .mainloop |
||
1742 | |||
1743 | .folders_alloc: |
||
1744 | push ecx |
||
1745 | add ecx, [_7z.StreamsInfo.folders.size] |
||
1746 | sub ecx, [_7z.StreamsInfo.folders.alloc] |
||
1747 | jbe @f |
||
1748 | push edx |
||
1749 | or ecx, 0xFFF |
||
1750 | inc ecx |
||
1751 | add ecx, [_7z.StreamsInfo.folders.alloc] |
||
1752 | mov [_7z.StreamsInfo.folders.alloc], ecx |
||
1753 | mov edx, [_7z.StreamsInfo.folders] |
||
1754 | call [pgrealloc] |
||
1755 | pop edx |
||
1756 | test eax, eax |
||
1757 | jz return.clear |
||
1758 | mov [_7z.StreamsInfo.folders], eax |
||
1759 | @@: |
||
1760 | pop ecx |
||
1761 | mov eax, [_7z.StreamsInfo.folders.size] |
||
1762 | add [_7z.StreamsInfo.folders.size], ecx |
||
1763 | ret |
||
1764 | |||
1765 | .error: |
||
1766 | mov ecx, [_7z.StreamsInfo.packSizes] |
||
1767 | jecxz @f |
||
1768 | call [pgfree] |
||
1769 | @@: |
||
1770 | mov ecx, [_7z.StreamsInfo.folders] |
||
1771 | jecxz @f |
||
1772 | call [pgfree] |
||
1773 | @@: |
||
1774 | mov ecx, [_7z.StreamsInfo.SubStreamsSizes] |
||
1775 | jecxz @f |
||
1776 | call [pgfree] |
||
1777 | @@: |
||
1778 | mov ecx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined] |
||
1779 | jecxz @f |
||
1780 | call [pgfree] |
||
1781 | @@: |
||
1782 | jmp open_7z.header_error |
||
1783 | .clear: |
||
1784 | mov ecx, [_7z.StreamsInfo.packSizes] |
||
1785 | jecxz @f |
||
1786 | call [pgfree] |
||
1787 | @@: |
||
1788 | mov ecx, [_7z.StreamsInfo.folders] |
||
1789 | jecxz @f |
||
1790 | call [pgfree] |
||
1791 | @@: |
||
1792 | mov ecx, [_7z.StreamsInfo.SubStreamsSizes] |
||
1793 | jecxz @f |
||
1794 | call [pgfree] |
||
1795 | @@: |
||
1796 | mov ecx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined] |
||
1797 | jecxz @f |
||
1798 | call [pgfree] |
||
1799 | @@: |
||
1800 | jmp open_7z.clear |
||
1801 | |||
1802 | uglobal |
||
1803 | align 4 |
||
1804 | _7z.decode.mainbuf dd ? |
||
1805 | _7z.decode.pStreams dd ? |
||
1806 | _7z.decode.pStreams_def rd 8 |
||
1807 | _7z.decode.outBufferSize dd ? |
||
1808 | _7z.decode.outBufferPtr dd ? |
||
1809 | _7z.decode.outBufferRead dd ? |
||
1810 | endg |
||
1811 | |||
1812 | virtual at 0 |
||
1813 | streamInfo: |
||
1814 | .fullSize dq ? |
||
1815 | .fillBuf dd ? ; procedure which fills the buffer |
||
1816 | .bufSize dd ? |
||
1817 | .bufDataLen dd ? |
||
1818 | .bufPtr dd ? |
||
1819 | .size = $ |
||
1820 | end virtual |
||
1821 | |||
1822 | _7z.decode: |
||
1823 | ; in: ebx->folder, outBufferSize, outBufferPtr |
||
1824 | ; N.B. We assume that every coder has 1 output (unpacked) stream. |
||
1825 | and [.mainbuf], 0 |
||
1826 | mov [.pStreams], .pStreams_def |
||
1827 | mov [error_proc], .error |
||
1828 | mov [clear_proc], .clear |
||
1829 | call .init |
||
1830 | and [.outBufferRead], 0 |
||
1831 | @@: |
||
1832 | push edi |
||
1833 | mov eax, [ebx+_7z.StreamsInfo.mainOutStream] |
||
1834 | mov esi, [.pStreams] |
||
1835 | mov eax, [esi+eax*4] |
||
1836 | call fillBuf |
||
893 | diamond | 1837 | mov ecx, [eax+streamInfo.bufDataLen] |
589 | diamond | 1838 | mov esi, [eax+streamInfo.bufPtr] |
1839 | mov edi, [.outBufferPtr] |
||
1840 | add edi, [.outBufferRead] |
||
1841 | add [.outBufferRead], ecx |
||
1842 | mov edx, ecx |
||
1843 | shr ecx, 2 |
||
1844 | rep movsd |
||
1845 | mov ecx, edx |
||
1846 | and ecx, 3 |
||
1847 | rep movsb |
||
1848 | pop edi |
||
1849 | mov eax, [.outBufferRead] |
||
1850 | cmp eax, [.outBufferSize] |
||
1851 | jb @b |
||
1852 | mov ecx, [.pStreams] |
||
1853 | cmp ecx, .pStreams_def |
||
1854 | jz @f |
||
1855 | call [pgfree] |
||
1856 | @@: |
||
1857 | mov ecx, [.mainbuf] |
||
1858 | jecxz @f |
||
1859 | call [pgfree] |
||
1860 | @@: |
||
1861 | mov [error_proc], _7z.ReadAndDecodePackedStreams.error |
||
1862 | mov [clear_proc], _7z.ReadAndDecodePackedStreams.clear |
||
1863 | ret |
||
1864 | |||
1865 | .error: |
||
1866 | mov ecx, [.pStreams] |
||
1867 | cmp ecx, .pStreams_def |
||
1868 | jz @f |
||
1869 | call [pgfree] |
||
1870 | @@: |
||
1871 | mov ecx, [.mainbuf] |
||
1872 | jecxz @f |
||
1873 | call [pgfree] |
||
1874 | @@: |
||
1875 | jmp _7z.ReadAndDecodePackedStreams.error |
||
1876 | .clear: |
||
1877 | mov ecx, [.pStreams] |
||
1878 | cmp ecx, .pStreams_def |
||
1879 | jz @f |
||
1880 | call [pgfree] |
||
1881 | @@: |
||
1882 | mov ecx, [.mainbuf] |
||
1883 | jecxz @f |
||
1884 | call [pgfree] |
||
1885 | @@: |
||
1886 | jmp _7z.ReadAndDecodePackedStreams.clear |
||
1887 | |||
1888 | .init: |
||
1889 | ; We use stack to keep some information on streams, |
||
1890 | ; to avoid stack overflow we limit possible number of coders. |
||
1891 | ; Anyway, in real life maximum number of coders is 5 |
||
1892 | ; (password protection filter + BCJ2 filter + 3 LZMA coders), |
||
1893 | ; from command line user can define more coders, but |
||
1894 | ; archive with, say, 32 coders is most likely bogus. |
||
1895 | cmp [ebx+_7z.StreamsInfo.numCoders], 128 |
||
1896 | ja return.err |
||
1897 | ; allocate space for streams info array |
||
1898 | mov eax, .pStreams_def |
||
1899 | mov ecx, [ebx+_7z.StreamsInfo.numPackedStreams] |
||
1900 | add ecx, [ebx+_7z.StreamsInfo.numCoders] |
||
1901 | cmp ecx, 8 |
||
1902 | jbe @f |
||
1903 | shl ecx, 2 |
||
1904 | call [pgalloc] |
||
1905 | test eax, eax |
||
1906 | jz return.clear |
||
1907 | @@: |
||
1908 | mov [.pStreams], eax |
||
1909 | ; calculate size of buffers required for decoders |
||
1910 | xor ecx, ecx |
||
1911 | push ecx |
||
1912 | mov ebp, [ebx+_7z.StreamsInfo.unpackSizes] |
||
1913 | .calcbufsz: |
||
1914 | ; LZMA decoder: method ID = [size=03] 03 01 01, NumInStreams = NumOutStreams = 1 |
||
1915 | mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4] |
||
1916 | call _7z.GetCoder |
||
1917 | jnc .known_id |
||
1918 | .unknown_method_id: |
||
1919 | movzx esi, byte [eax+4] |
||
1920 | lea ecx, [eax+5] |
||
1921 | mov ebx, aUnknownMethod.z |
||
1922 | @@: |
||
1923 | dec esi |
||
1924 | js @f |
||
1925 | mov byte [ebx], ' ' |
||
1926 | inc ebx |
||
1927 | mov al, [ecx] |
||
1928 | push eax |
||
1929 | shr al, 4 |
||
1930 | cmp al, 10 |
||
1931 | sbb al, 69h |
||
1932 | das |
||
1933 | mov [ebx], al |
||
1934 | inc ebx |
||
1935 | pop eax |
||
1936 | and al, 0xF |
||
1937 | cmp al, 10 |
||
1938 | sbb al, 69h |
||
1939 | das |
||
1940 | mov [ebx], al |
||
1941 | inc ebx |
||
1942 | inc ecx |
||
1943 | jmp @b |
||
1944 | @@: |
||
1945 | mov byte [ebx], 0 |
||
1946 | push ContinueBtn |
||
1947 | push 1 |
||
1948 | push aUnknownMethod_ptr |
||
1949 | push 1 |
||
1950 | call [SayErr] |
||
1951 | jmp return.clear |
||
1952 | iglobal |
||
1953 | if lang eq ru |
||
1954 | aUnknownMethod db '¥¨§¢¥áâë© ¬¥â®¤:' |
||
1955 | else |
||
1956 | aUnknownMethod db 'Unknown method:' |
||
1957 | end if |
||
1958 | .z: |
||
1959 | times 16*3+1 db 0 |
||
1960 | aUnknownMethod_ptr dd aUnknownMethod |
||
1961 | endg |
||
1962 | .known_id: |
||
1963 | movzx esi, byte [eax+4] |
||
1964 | lea esi, [esi+eax+17] |
||
1965 | call [_7z.GetBufSizeTable+edx*4] |
||
1966 | add eax, 3 |
||
1967 | and al, not 3 |
||
1968 | add [esp], eax |
||
1969 | jc .nomem |
||
1970 | cmp dword [ebp+4], 0 |
||
1971 | jnz @f |
||
1972 | cmp dword [ebp], edx |
||
1973 | jae @f |
||
1974 | mov edx, [ebp] |
||
1975 | @@: |
||
1976 | add edx, 0xF |
||
1977 | and edx, not 0xF |
||
1978 | add [esp], edx |
||
1979 | jc .nomem |
||
1980 | add ebp, 8 |
||
1981 | inc ecx |
||
1982 | cmp ecx, [ebx+_7z.StreamsInfo.numCoders] |
||
1983 | jb .calcbufsz |
||
1984 | ; add 4 pages for each of not binded input streams |
||
1985 | mov ecx, [ebx+_7z.StreamsInfo.numPackedStreams] |
||
1986 | shl ecx, 14 |
||
1987 | add [esp], ecx |
||
1988 | ;; calculate free RAM |
||
1989 | ; call [getfreemem] |
||
1990 | ; sub eax, 64 ; keep at least 64 Kb of free RAM |
||
1991 | ; jbe .nomem |
||
1992 | ; pop ecx |
||
1993 | ; push ecx |
||
1994 | ; add ecx, 0x3FF |
||
1995 | ; shr ecx, 10 |
||
1996 | ; cmp eax, ecx |
||
1997 | ; jae .memok |
||
1998 | jmp .memok |
||
1999 | .nomem: |
||
2000 | push ContinueBtn |
||
2001 | push 1 |
||
2002 | push aNoFreeRam_ptr |
||
2003 | push 1 |
||
2004 | call [SayErr] |
||
2005 | jmp return.clear |
||
2006 | .memok: |
||
2007 | ; allocate streamInfos |
||
2008 | pop ecx |
||
2009 | call [pgalloc] |
||
2010 | test eax, eax |
||
2011 | jz return.clear |
||
2012 | mov [.mainbuf], eax |
||
2013 | ; initialize streamInfos for decoders |
||
2014 | xor ecx, ecx |
||
2015 | mov ebp, [ebx+_7z.StreamsInfo.unpackSizes] |
||
2016 | mov edx, [.pStreams] |
||
2017 | .init1: |
||
2018 | mov [edx], eax |
||
2019 | add edx, 4 |
||
2020 | push edx |
||
2021 | push dword [ebp] |
||
2022 | pop dword [eax] |
||
2023 | push dword [ebp+4] |
||
2024 | pop dword [eax+4] |
||
2025 | and dword [eax+streamInfo.size], 0 |
||
2026 | push eax |
||
2027 | mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4] |
||
2028 | call _7z.GetCoder |
||
2029 | movzx esi, byte [eax+4] |
||
2030 | lea esi, [esi+eax+17] |
||
2031 | call [_7z.GetBufSizeTable+edx*4] |
||
2032 | pop esi |
||
2033 | push esi |
||
2034 | add eax, 3 |
||
2035 | and al, not 3 |
||
2036 | add [esp], eax |
||
2037 | pop [esi+streamInfo.bufPtr] |
||
2038 | push [esi+streamInfo.bufPtr] |
||
2039 | cmp dword [ebp+4], 0 |
||
2040 | jnz @f |
||
2041 | cmp dword [ebp], edx |
||
2042 | jae @f |
||
2043 | mov edx, [ebp] |
||
2044 | @@: |
||
2045 | add edx, 0xF |
||
2046 | and edx, not 0xF |
||
2047 | mov [esi+streamInfo.bufSize], edx |
||
2048 | and [esi+streamInfo.bufDataLen], 0 |
||
2049 | pop eax |
||
2050 | add eax, edx |
||
2051 | pop edx |
||
2052 | add ebp, 8 |
||
2053 | inc ecx |
||
2054 | cmp ecx, [ebx+_7z.StreamsInfo.numCoders] |
||
2055 | jb .init1 |
||
2056 | ; initialize streamInfos for input streams |
||
2057 | xor ecx, ecx |
||
2058 | @@: |
||
2059 | mov [edx], eax |
||
2060 | add edx, 4 |
||
2061 | mov esi, [_7z.CurInStream] |
||
2062 | inc [_7z.CurInStream] |
||
2063 | shl esi, 3 |
||
2064 | add esi, [_7z.StreamsInfo.packSizes] |
||
2065 | push dword [esi] |
||
2066 | pop dword [eax] |
||
2067 | push dword [esi+4] |
||
2068 | pop dword [eax+4] |
||
2069 | mov [eax+streamInfo.fillBuf], fillBufFromInStream |
||
2070 | lea esi, [eax+streamInfo.size+8] |
||
2071 | mov [eax+streamInfo.bufPtr], esi |
||
2072 | mov [eax+streamInfo.bufSize], 0x4000 - streamInfo.size - 8 |
||
2073 | and [eax+streamInfo.bufDataLen], 0 |
||
2074 | mov esi, dword [_7z.StreamsInfo.dataOffset] |
||
2075 | mov dword [eax+streamInfo.size], esi |
||
2076 | mov esi, dword [_7z.StreamsInfo.dataOffset+4] |
||
2077 | mov dword [eax+streamInfo.size+4], esi |
||
2078 | mov esi, [eax] |
||
2079 | add dword [_7z.StreamsInfo.dataOffset], esi |
||
2080 | mov esi, [eax+4] |
||
2081 | adc dword [_7z.StreamsInfo.dataOffset+4], esi |
||
2082 | add eax, 0x4000 |
||
2083 | inc ecx |
||
2084 | cmp ecx, [ebx+_7z.StreamsInfo.numPackedStreams] |
||
2085 | jb @b |
||
2086 | ; initialize links between streams |
||
2087 | push -1 |
||
2088 | mov edx, [ebx+_7z.StreamsInfo.mainOutStream] |
||
2089 | xor ecx, ecx |
||
2090 | .init_links: |
||
2091 | mov eax, [ebx+_7z.StreamsInfo.fsz+edx*4] |
||
2092 | movzx esi, byte [eax+4] |
||
2093 | cmp ecx, [eax+esi+5] |
||
2094 | jb @f |
||
2095 | pop ecx |
||
2096 | cmp ecx, -1 |
||
2097 | jz .inited_links |
||
2098 | pop edx |
||
2099 | jmp .init_links |
||
2100 | @@: |
||
2101 | push edx |
||
2102 | push ecx |
||
2103 | @@: |
||
2104 | dec edx |
||
2105 | js @f |
||
2106 | mov eax, [ebx+_7z.StreamsInfo.fsz+edx*4] |
||
2107 | movzx esi, byte [eax+4] |
||
2108 | add ecx, [eax+esi+5] |
||
2109 | jmp @b |
||
2110 | @@: |
||
2111 | mov esi, [ebx+_7z.StreamsInfo.bindPairs] |
||
2112 | mov edx, [ebx+_7z.StreamsInfo.numBindPairs] |
||
2113 | @@: |
||
2114 | add esi, 8 |
||
2115 | dec edx |
||
2116 | js .link_to_in |
||
2117 | cmp ecx, [esi-8] |
||
2118 | jnz @b |
||
2119 | pop ecx |
||
2120 | pop edx |
||
2121 | mov eax, [.pStreams] |
||
2122 | mov eax, [eax+edx*4] |
||
2123 | lea eax, [eax+streamInfo.size+ecx*4] |
||
2124 | push edx |
||
2125 | inc ecx |
||
2126 | push ecx |
||
2127 | mov edx, [esi-4] |
||
2128 | mov ecx, [.pStreams] |
||
2129 | mov ecx, [ecx+edx*4] |
||
2130 | mov [eax], ecx |
||
2131 | cmp dword [ecx+streamInfo.size], 0 |
||
2132 | jnz return.err |
||
2133 | xor ecx, ecx |
||
2134 | jmp .init_links |
||
2135 | .link_to_in: |
||
2136 | mov esi, [ebx+_7z.StreamsInfo.packedStreams] |
||
2137 | mov edx, [ebx+_7z.StreamsInfo.numPackedStreams] |
||
2138 | @@: |
||
2139 | dec edx |
||
2140 | js return.err |
||
2141 | cmp ecx, [esi+edx*4] |
||
2142 | jnz @b |
||
2143 | add edx, [ebx+_7z.StreamsInfo.numCoders] |
||
2144 | mov esi, [.pStreams] |
||
2145 | mov eax, [esi+edx*4] |
||
2146 | pop ecx |
||
2147 | pop edx |
||
2148 | mov esi, [esi+edx*4] |
||
2149 | mov [esi+streamInfo.size+ecx*4], eax |
||
2150 | inc ecx |
||
2151 | jmp .init_links |
||
2152 | .inited_links: |
||
2153 | ; initialize all decoders |
||
2154 | ; bool zzz_init_decoder(stream_info* ebp, esi->params, [esi-4]=params_size); |
||
2155 | xor ecx, ecx |
||
2156 | .init_decoders: |
||
2157 | mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4] |
||
2158 | call _7z.GetCoder |
||
2159 | movzx esi, byte [eax+4] |
||
2160 | mov ebp, [.pStreams] |
||
2161 | mov ebp, [ebp+ecx*4] |
||
2162 | cmp dword [esi+eax], 0 |
||
2163 | jz @f |
||
2164 | cmp dword [ebp+streamInfo.size], 0 |
||
2165 | jz return.err |
||
2166 | @@: |
||
2167 | lea esi, [esi+eax+17] |
||
2168 | push ebx ecx edi |
||
2169 | xor ebx, ebx |
||
2170 | call [_7z.InitTable+edx*4] |
||
2171 | pop edi ecx ebx |
||
2172 | inc ecx |
||
2173 | cmp ecx, [ebx+_7z.StreamsInfo.numCoders] |
||
2174 | jb .init_decoders |
||
2175 | ret |
||
2176 | |||
2177 | fillBuf: |
||
2178 | and [eax+streamInfo.bufDataLen], 0 |
||
2179 | fillBufNozero: |
||
2180 | pushad |
||
2181 | mov edx, [eax+streamInfo.bufSize] |
||
2182 | sub edx, [eax+streamInfo.bufDataLen] |
||
2183 | cmp dword [eax+streamInfo.fullSize+4], 0 |
||
2184 | jnz .full |
||
2185 | mov ecx, dword [eax+streamInfo.fullSize] |
||
2186 | cmp ecx, edx |
||
2187 | jbe @f |
||
2188 | .full: |
||
2189 | mov ecx, edx |
||
2190 | @@: |
||
2191 | sub dword [eax+streamInfo.fullSize], ecx |
||
2192 | sbb dword [eax+streamInfo.fullSize+4], 0 |
||
2193 | mov edi, [eax+streamInfo.bufPtr] |
||
2194 | add edi, [eax+streamInfo.bufDataLen] |
||
2195 | add [eax+streamInfo.bufDataLen], ecx |
||
2196 | jmp [eax+streamInfo.fillBuf] |
||
2197 | |||
2198 | fillBufFromInStream: |
||
2199 | push eax |
||
2200 | push dword [eax+streamInfo.size+4] |
||
2201 | push dword [eax+streamInfo.size] |
||
2202 | push 0 |
||
2203 | push [inStream] |
||
2204 | call [seek] |
||
2205 | push ecx |
||
2206 | push edi |
||
2207 | push [inStream] |
||
2208 | call [read] |
||
2209 | cmp eax, ecx |
||
2210 | pop eax |
||
2211 | jnz .error |
||
2212 | add dword [eax+streamInfo.size], ecx |
||
2213 | adc dword [eax+streamInfo.size+4], 0 |
||
2214 | popad |
||
2215 | ret |
||
2216 | .error: |
||
2217 | push ContinueBtn |
||
2218 | push 1 |
||
2219 | push aReadError_ptr |
||
2220 | push 1 |
||
2221 | call [SayErr] |
||
2222 | jmp return.clear |
||
2223 | |||
2224 | _7z.GetCoder: |
||
2225 | ; in: eax->coder |
||
2226 | ; out: edx = coder type |
||
2227 | xor edx, edx |
||
2228 | ; Copy decoder: method ID = [size=01] 00, NumInStreams = NumOutStreams = 1 |
||
2229 | cmp word [eax+4], 0x0001 |
||
2230 | jnz @f |
||
2231 | cmp dword [eax+6], 1 |
||
2232 | jz .ret |
||
2233 | @@: |
||
2234 | inc edx |
||
2235 | ; LZMA decoder: method ID = [size=03] 03 01 01, NumInStreams = NumOutStreams = 1 |
||
2236 | cmp dword [eax+4], 0x01010303 |
||
2237 | jnz @f |
||
2238 | cmp dword [eax+8], 1 |
||
2239 | jz .ret |
||
2240 | @@: |
||
2241 | inc edx |
||
2242 | ; PPMD decoder: method ID = [size=03] 03 04 01, NumInStreams = NumOutStreams = 1 |
||
2243 | cmp dword [eax+4], 0x01040303 |
||
2244 | jnz @f |
||
2245 | cmp dword [eax+8], 1 |
||
2246 | jz .ret |
||
2247 | @@: |
||
2248 | inc edx |
||
2249 | ; BCJ filter: method ID = [size=04] 03 03 01 03, NumInStreams = NumOutStreams = 1 |
||
2250 | cmp byte [eax+4], 4 |
||
2251 | jnz @f |
||
2252 | cmp dword [eax+5], 0x03010303 |
||
2253 | jnz @f |
||
2254 | cmp dword [eax+9], 1 |
||
2255 | jz .ret |
||
2256 | @@: |
||
2257 | inc edx |
||
2258 | ; BCJ2 filter: method ID = [size=04] 03 03 01 1B, NumInStreams = 4, NumOutStreams = 1 |
||
2259 | cmp byte [eax+4], 4 |
||
2260 | jnz @f |
||
2261 | cmp dword [eax+5], 0x1B010303 |
||
2262 | jnz @f |
||
2263 | cmp dword [eax+9], 4 |
||
2264 | jz .ret |
||
2265 | @@: |
||
2266 | inc edx |
||
2267 | ; 7z-AES cryptor: method ID = [size=04] 06 F1 07 01, NumInStreams = NumOutStreams = 1 |
||
2268 | cmp byte [eax+4], 4 |
||
2269 | jnz @f |
||
2270 | cmp dword [eax+5], 0x0107F106 |
||
2271 | jnz @f |
||
2272 | cmp dword [eax+9], 1 |
||
2273 | jz .ret |
||
2274 | @@: |
||
631 | diamond | 2275 | inc edx |
2276 | ; Deflate decoder: method ID = [size=03] 04 01 08, NumInStreams = NumOutStreams = 1 |
||
2277 | cmp dword [eax+4], 0x08010403 |
||
2278 | jnz @f |
||
2279 | cmp dword [eax+8], 1 |
||
2280 | jz .ret |
||
2281 | @@: |
||
2282 | inc edx |
||
2283 | ; Deflate64 decoder: method ID = [size=03] 04 01 09, NumInStreams = NumOutStreams = 1 |
||
2284 | cmp dword [eax+4], 0x09010403 |
||
2285 | jnz @f |
||
2286 | cmp dword [eax+8], 1 |
||
2287 | jz .ret |
||
2288 | @@: |
||
589 | diamond | 2289 | stc |
2290 | .ret: |
||
2291 | ret |
||
2292 | |||
2293 | iglobal |
||
2294 | align 4 |
||
2295 | label _7z.GetBufSizeTable dword |
||
2296 | dd copy_get_buf_size |
||
2297 | dd lzma_get_buf_size |
||
2298 | dd ppmd_get_buf_size |
||
2299 | dd bcj_get_buf_size |
||
2300 | dd bcj2_get_buf_size |
||
2301 | dd aes7z_get_buf_size |
||
631 | diamond | 2302 | dd deflate_get_buf_size |
2303 | dd deflate_get_buf_size |
||
589 | diamond | 2304 | label _7z.InitTable dword |
2305 | dd copy_init_decoder |
||
2306 | dd lzma_init_decoder |
||
2307 | dd ppmd_init_decoder |
||
2308 | dd bcj_init_decoder |
||
2309 | dd bcj2_init_decoder |
||
2310 | dd aes7z_init_decoder |
||
631 | diamond | 2311 | dd deflate_init_decoder |
2312 | dd deflate64_init_decoder |
||
589 | diamond | 2313 | endg |
2314 | |||
2315 | copy_get_buf_size: |
||
2316 | mov eax, streamInfo.size+8 |
||
2317 | mov edx, 0x10000 |
||
2318 | ret |
||
2319 | |||
2320 | copy_init_decoder: |
||
2321 | mov [ebp+streamInfo.fillBuf], copy_fillBuf |
||
2322 | and dword [ebp+streamInfo.size+4], 0 |
||
2323 | ret |
||
2324 | |||
2325 | copy_fillBuf: |
||
2326 | push eax |
||
2327 | mov esi, [eax+streamInfo.size+4] |
||
2328 | mov eax, [eax+streamInfo.size] |
||
2329 | .redo: |
||
2330 | push ecx |
||
2331 | mov edx, [eax+streamInfo.bufDataLen] |
||
2332 | sub edx, esi |
||
2333 | cmp ecx, edx |
||
2334 | jb @f |
||
2335 | mov ecx, edx |
||
2336 | @@: |
||
2337 | sub [esp], ecx |
||
2338 | add esi, [eax+streamInfo.bufPtr] |
||
2339 | mov edx, ecx |
||
2340 | shr ecx, 2 |
||
2341 | rep movsd |
||
2342 | mov ecx, edx |
||
2343 | and ecx, 3 |
||
2344 | rep movsb |
||
2345 | pop ecx |
||
2346 | jecxz .done |
||
2347 | cmp dword [eax+streamInfo.fullSize+4], 0 |
||
2348 | jnz @f |
||
2349 | cmp dword [eax+streamInfo.fullSize], ecx |
||
2350 | jb return.err |
||
2351 | @@: |
||
2352 | call fillBuf |
||
2353 | xor esi, esi |
||
2354 | jmp .redo |
||
2355 | .done: |
||
2356 | sub esi, [eax+streamInfo.bufPtr] |
||
2357 | pop eax |
||
2358 | mov [eax+streamInfo.size+4], esi |
||
2359 | popad |
||
2360 | ret |
||
2361 | |||
2362 | ; ebp=hPlugin, eax->item, edi->info |
||
2363 | getattr_7z: |
||
2364 | cmp [eax+file_in_7z.bPseudoFolder], 0 |
||
2365 | jnz .pseudo |
||
2366 | lea esi, [eax+file_in_7z.attr] |
||
2367 | movsd |
||
2368 | xor eax, eax |
||
2369 | stosd |
||
2370 | add esi, -(file_in_7z.attr+4) + file_in_7z.CreationTime |
||
2371 | mov ecx, 8 |
||
2372 | rep movsd |
||
2373 | ret |
||
2374 | .pseudo: |
||
2375 | push 0x10 ; attributes: folder |
||
2376 | pop eax |
||
2377 | stosd |
||
2378 | xor eax, eax |
||
2379 | stosd |
||
2380 | lea esi, [ebp+handle_7z.host_datetime] |
||
2381 | push 6 |
||
2382 | pop ecx |
||
2383 | rep movsd |
||
2384 | stosd |
||
2385 | stosd |
||
2386 | ret |
||
2387 | |||
2388 | virtual at 0 |
||
2389 | file_handle_7z: |
||
2390 | .type dd ? |
||
2391 | .context dd ? |
||
2392 | .pos dq ? |
||
2393 | .base dd ? ; handle of archive |
||
2394 | .item dd ? ; pointer to file_in_7z |
||
2395 | .mainStream dd ? ; (pointer in context) |
||
2396 | .bError db ? |
||
2397 | rb 3 |
||
2398 | .size = $ |
||
2399 | end virtual |
||
2400 | |||
2401 | iglobal |
||
2402 | align 4 |
||
2403 | handle_table_7z dd handle_table_7z,handle_table_7z |
||
2404 | endg |
||
2405 | |||
2406 | ; ebp=hPlugin, eax->item, edi=mode |
||
2407 | open_file_7z: |
||
2408 | cmp [eax+file_in_7z.bHasStream], 0 |
||
2409 | jnz @f |
||
2410 | mov eax, empty_7z_handle |
||
2411 | ret |
||
2412 | @@: |
||
2413 | mov ecx, [ebp+handle_7z.password_len] |
||
2414 | inc ecx |
||
2415 | setnz [bPasswordDefined] |
||
2416 | jz @f |
||
2417 | dec ecx |
||
2418 | lea esi, [ebp+handle_7z.password] |
||
2419 | push edi |
||
2420 | mov edi, password_unicode |
||
2421 | shr ecx, 1 |
||
2422 | rep movsd |
||
2423 | adc ecx, ecx |
||
2424 | rep movsw |
||
2425 | pop edi |
||
2426 | @@: |
||
2427 | mov [hOut], ecx |
||
2428 | mov [_7z.decode.mainbuf], ecx |
||
2429 | mov ecx, [ebp+handle_7z.host] |
||
2430 | mov [inStream], ecx |
||
2431 | mov [_7z.decode.pStreams], _7z.decode.pStreams_def |
||
2432 | push eax |
||
2433 | mov [_esp], esp |
||
2434 | mov [_ebp], ebp |
||
2435 | mov [error_proc], .error |
||
2436 | mov [clear_proc], .clear |
||
2437 | mov ebx, [ebp+handle_7z.folders] |
||
2438 | mov ecx, [eax+file_in_7z.folder] |
||
2439 | cmp [ebp+handle_7z.last_folder], ecx |
||
2440 | jnz .nolast |
||
2441 | mov edx, dword [eax+file_in_7z.folderStart] |
||
2442 | sub edx, dword [ebp+handle_7z.last_pos] |
||
2443 | mov esi, dword [eax+file_in_7z.folderStart+4] |
||
2444 | sbb esi, dword [ebp+handle_7z.last_pos+4] |
||
2445 | jb .nolast |
||
2446 | xor ecx, ecx |
||
2447 | xchg ecx, [ebp+handle_7z.last_context] |
||
2448 | mov [_7z.decode.mainbuf], ecx |
||
2449 | mov eax, [ebp+handle_7z.last_main_stream] |
||
2450 | mov dword [eax+streamInfo.fullSize], edx |
||
2451 | mov dword [eax+streamInfo.fullSize+4], esi |
||
2452 | or [ebp+handle_7z.last_folder], -1 |
||
2453 | pop esi |
||
2454 | push esi |
||
2455 | jmp .commonl |
||
2456 | .nolast: |
||
2457 | mov ebx, [ebx+ecx*4] |
||
2458 | mov eax, [ebx+_7z.StreamsInfo.startPackedStream] |
||
2459 | mov [_7z.CurInStream], eax |
||
2460 | mov eax, dword [ebx+_7z.StreamsInfo.packOffset] |
||
2461 | mov dword [_7z.StreamsInfo.dataOffset], eax |
||
2462 | mov eax, dword [ebx+_7z.StreamsInfo.packOffset+4] |
||
2463 | mov dword [_7z.StreamsInfo.dataOffset+4], eax |
||
2464 | mov eax, [ebp+handle_7z.packSizes] |
||
2465 | mov [_7z.StreamsInfo.packSizes], eax |
||
2466 | push ebp |
||
2467 | call _7z.decode.init |
||
2468 | pop ebp |
||
2469 | mov eax, [ebx+_7z.StreamsInfo.mainOutStream] |
||
2470 | mov esi, [_7z.decode.pStreams] |
||
2471 | mov eax, [esi+eax*4] |
||
2472 | pop esi |
||
2473 | push esi |
||
2474 | mov ecx, dword [esi+file_in_7z.folderStart] |
||
2475 | mov dword [eax+streamInfo.fullSize], ecx |
||
2476 | mov ecx, dword [esi+file_in_7z.folderStart+4] |
||
2477 | mov dword [eax+streamInfo.fullSize+4], ecx |
||
2478 | .commonl: |
||
2479 | call skip_7z |
||
2480 | mov ecx, dword [esi+file_in_7z.UnPackSize] |
||
2481 | mov dword [eax+streamInfo.fullSize], ecx |
||
2482 | mov edx, dword [esi+file_in_7z.UnPackSize+4] |
||
2483 | mov dword [eax+streamInfo.fullSize+4], edx |
||
2484 | test edx, edx |
||
2485 | jnz .nomemstream |
||
2486 | if defined LIMIT_FOR_MEM_STREAM |
||
2487 | cmp ecx, LIMIT_FOR_MEM_STREAM |
||
2488 | ja .nomemstream |
||
2489 | end if |
||
2490 | push eax ecx |
||
2491 | add ecx, 0x3FF |
||
2492 | shr ecx, 10 ; get size in Kb |
||
2493 | call [getfreemem] |
||
2494 | shr eax, 2 |
||
2495 | cmp ecx, eax |
||
2496 | pop ecx eax |
||
2497 | ja .nomemstream |
||
2498 | ; create memory stream and unpack to memory |
||
2499 | push eax ecx |
||
2500 | add ecx, mem_stream.buf |
||
2501 | call [pgalloc] |
||
2502 | test eax, eax |
||
2503 | jz return.clear |
||
2504 | mov edi, eax |
||
2505 | pop ecx |
||
2506 | push edi |
||
2507 | mov [hOut], eax |
||
2508 | xor eax, eax ; type_mem_stream |
||
2509 | stosd ; mem_stream.type |
||
2510 | mov eax, ecx |
||
2511 | stosd ; mem_stream.size |
||
2512 | xor eax, eax |
||
2513 | stosd ; mem_stream.pos |
||
2514 | mov eax, [esp+4] |
||
2515 | push esi |
||
2516 | push ecx edi |
||
2517 | call read_7z_to_buf |
||
2518 | pop esi ecx |
||
2519 | mov ebx, [esp+12] |
||
2520 | cmp [ebx+file_in_7z.bCRCDefined], 0 |
||
2521 | jz @f |
||
2522 | call crc |
||
2523 | cmp eax, [ebx+file_in_7z.FileCRC] |
||
2524 | jnz return.err |
||
2525 | @@: |
||
2526 | pop esi |
||
2527 | xor ecx, ecx |
||
2528 | xchg ecx, [_7z.decode.mainbuf] |
||
2529 | xchg ecx, [ebp+handle_7z.last_context] |
||
2530 | jecxz @f |
||
2531 | call [pgfree] |
||
2532 | @@: |
||
2533 | and [hOut], 0 |
||
2534 | mov eax, [esi+file_in_7z.folder] |
||
2535 | mov [ebp+handle_7z.last_folder], eax |
||
2536 | mov eax, [esp+4] |
||
2537 | mov [ebp+handle_7z.last_main_stream], eax |
||
2538 | mov ecx, dword [esi+file_in_7z.UnPackSize] |
||
2539 | add ecx, dword [esi+file_in_7z.folderStart] |
||
2540 | mov dword [ebp+handle_7z.last_pos], ecx |
||
2541 | mov ecx, dword [esi+file_in_7z.UnPackSize+4] |
||
2542 | adc ecx, dword [esi+file_in_7z.folderStart+4] |
||
2543 | mov dword [ebp+handle_7z.last_pos+4], ecx |
||
2544 | call .done |
||
2545 | pop eax edi ecx |
||
2546 | ret |
||
2547 | .nomemstream: |
||
2548 | mov edi, eax |
||
2549 | push esi |
||
2550 | mov esi, handle_table_7z |
||
2551 | push file_handle_7z.size |
||
2552 | pop ecx |
||
2553 | call alloc_handle |
||
2554 | pop esi |
||
2555 | test eax, eax |
||
2556 | jz .clear |
||
2557 | mov [eax+file_handle_7z.type], type_7z |
||
2558 | xor edx, edx |
||
2559 | mov dword [eax+file_handle_7z.pos], edx |
||
2560 | mov dword [eax+file_handle_7z.pos+4], edx |
||
2561 | mov [eax+file_handle_7z.bError], dl |
||
2562 | xchg edx, [_7z.decode.mainbuf] |
||
2563 | mov [eax+file_handle_7z.context], edx |
||
2564 | mov [eax+file_handle_7z.mainStream], edi |
||
2565 | mov [eax+file_handle_7z.base], ebp |
||
2566 | mov [eax+file_handle_7z.item], esi |
||
2567 | push eax |
||
2568 | call .done |
||
2569 | pop eax ecx |
||
2570 | ret |
||
2571 | |||
2572 | .done: |
||
2573 | cmp [bPasswordDefined], 0 |
||
2574 | jz @f |
||
2575 | mov ecx, [password_size] |
||
2576 | mov [ebp+handle_7z.password_len], ecx |
||
2577 | mov esi, password_unicode |
||
2578 | lea edi, [ebp+handle_7z.password] |
||
2579 | shr ecx, 1 |
||
2580 | rep movsd |
||
2581 | adc ecx, ecx |
||
2582 | rep movsw |
||
2583 | @@: |
||
2584 | jmp .clear |
||
2585 | |||
2586 | .error: |
||
2587 | cmp [bPasswordDefined], 0 |
||
2588 | jz .realerror |
||
2589 | push CancelPassBtn |
||
2590 | push 2 |
||
2591 | push aArchiveDataErrorPass_ptr |
||
2592 | push 1 |
||
2593 | call [SayErr] |
||
2594 | cmp al, 1 |
||
2595 | jnz .clear |
||
2596 | ; user wants to re-enter password |
||
2597 | call .clear |
||
2598 | pop eax |
||
2599 | jmp open_file_7z |
||
2600 | .realerror: |
||
2601 | push ContinueBtn |
||
2602 | push 1 |
||
2603 | push aArchiveDataError_ptr |
||
2604 | push 1 |
||
2605 | call [SayErr] |
||
2606 | .clear: |
||
2607 | mov ecx, [_7z.decode.pStreams] |
||
2608 | cmp ecx, _7z.decode.pStreams_def |
||
2609 | jz @f |
||
2610 | call [pgfree] |
||
2611 | @@: |
||
2612 | mov ecx, [_7z.decode.mainbuf] |
||
2613 | jecxz @f |
||
2614 | call [pgfree] |
||
2615 | @@: |
||
2616 | mov ecx, [hOut] |
||
2617 | jecxz @f |
||
2618 | call [pgfree] |
||
2619 | @@: |
||
2620 | cmp esp, [_esp] |
||
2621 | jnz @f |
||
2622 | pop eax |
||
2623 | @@: |
||
2624 | xor eax, eax |
||
2625 | ret |
||
2626 | |||
2627 | read_7z_to_buf: |
||
2628 | mov esi, [eax+streamInfo.bufDataLen] |
||
2629 | cmp esi, [eax+streamInfo.bufSize] |
||
2630 | jnz @f |
||
2631 | xor esi, esi |
||
2632 | mov [eax+streamInfo.bufDataLen], esi |
||
2633 | @@: |
||
2634 | call fillBufNozero |
||
2635 | mov ecx, [eax+streamInfo.bufDataLen] |
||
2636 | sub ecx, esi |
||
2637 | add esi, [eax+streamInfo.bufPtr] |
||
2638 | mov edx, ecx |
||
2639 | shr ecx, 2 |
||
2640 | rep movsd |
||
2641 | mov ecx, edx |
||
2642 | and ecx, 3 |
||
2643 | rep movsb |
||
2644 | cmp dword [eax+streamInfo.fullSize], 0 |
||
2645 | jnz read_7z_to_buf |
||
2646 | ret |
||
2647 | |||
2648 | skip_7z: |
||
2649 | push edx |
||
2650 | mov edx, [eax+streamInfo.bufDataLen] |
||
2651 | cmp edx, [eax+streamInfo.bufSize] |
||
2652 | jnz @f |
||
2653 | and [eax+streamInfo.bufDataLen], 0 |
||
2654 | @@: |
||
2655 | pop edx |
||
2656 | call fillBufNozero |
||
2657 | cmp dword [eax+streamInfo.fullSize], 0 |
||
2658 | jnz skip_7z |
||
2659 | cmp dword [eax+streamInfo.fullSize+4], 0 |
||
2660 | jnz skip_7z |
||
2661 | ret |
||
2662 | |||
2663 | ; unsigned __stdcall read(HANDLE hFile, void* buf, unsigned size); |
||
2664 | read_7z: |
||
2665 | mov eax, [ebx+file_handle_7z.mainStream] |
||
2666 | test eax, eax |
||
2667 | jz .ret ; empty stream - return 0 bytes read |
||
2668 | cmp [ebx+file_handle_7z.bError], 0 |
||
2669 | jnz .reterr |
||
2670 | mov ecx, [ebx+file_handle_7z.base] |
||
2671 | mov ecx, [ecx+handle_7z.host] |
||
2672 | mov [inStream], ecx |
||
2673 | mov edi, [esp+8] |
||
2674 | mov ecx, [esp+12] |
||
2675 | mov dword [eax+streamInfo.fullSize], ecx |
||
2676 | and dword [eax+streamInfo.fullSize+4], 0 |
||
2677 | jecxz .nodata |
||
2678 | mov [_esp], esp |
||
2679 | mov [_ebp], ebp |
||
2680 | mov [error_proc], .error |
||
2681 | mov [clear_proc], .clear ; should not be called |
||
2682 | mov esi, [ebx+file_handle_7z.item] |
||
2683 | mov edx, dword [esi+file_in_7z.UnPackSize] |
||
2684 | mov esi, dword [esi+file_in_7z.UnPackSize+4] |
||
2685 | sub edx, dword [ebx+file_handle_7z.pos] |
||
2686 | sbb esi, dword [ebx+file_handle_7z.pos+4] |
||
2687 | jnz .do |
||
2688 | cmp edx, ecx |
||
2689 | jae .do |
||
2690 | mov dword [eax+streamInfo.fullSize], edx |
||
2691 | .do: |
||
2692 | call read_7z_to_buf |
||
2693 | .nodata: |
||
2694 | sub edi, [esp+8] |
||
2695 | mov eax, edi |
||
2696 | add dword [ebx+file_handle_7z.pos], eax |
||
2697 | adc dword [ebx+file_handle_7z.pos+4], 0 |
||
2698 | .ret: |
||
2699 | ret 12 |
||
2700 | |||
2701 | .error: |
||
2702 | .clear: |
||
2703 | mov ebx, [esp+4] |
||
2704 | mov [ebx+file_handle_7z.bError], 1 |
||
2705 | push ContinueBtn |
||
2706 | push 1 |
||
2707 | push aArchiveDataError_ptr |
||
2708 | push 1 |
||
2709 | call [SayErr] |
||
2710 | .reterr: |
||
2711 | or eax, -1 |
||
2712 | ret 12 |
||
2713 | |||
2714 | ; void __stdcall setpos(HANDLE hFile, __int64 pos); |
||
2715 | setpos_7z: |
||
2716 | cmp [ebx+file_handle_7z.context], 0 |
||
2717 | jz .ret |
||
2718 | mov edi, [ebx+file_handle_7z.base] |
||
2719 | mov ecx, [edi+handle_7z.host] |
||
2720 | mov [inStream], ecx |
||
2721 | mov [_esp], esp |
||
2722 | mov [_ebp], ebp |
||
2723 | mov [error_proc], read_7z.error |
||
2724 | mov [clear_proc], read_7z.clear ; should not be called |
||
2725 | cmp [ebx+file_handle_7z.bError], 0 |
||
2726 | jnz .backward ; if was error, force reinitialization |
||
2727 | mov ecx, [esp+8] |
||
2728 | mov edx, [esp+12] |
||
2729 | sub ecx, dword [ebx+file_handle_7z.pos] |
||
2730 | sbb edx, dword [ebx+file_handle_7z.pos+4] |
||
2731 | jb .backward |
||
2732 | ; move forward - skip some data |
||
2733 | mov eax, [ebx+file_handle_7z.mainStream] |
||
2734 | mov dword [eax+streamInfo.fullSize], ecx |
||
2735 | mov dword [eax+streamInfo.fullSize+4], edx |
||
2736 | call skip_7z |
||
2737 | add dword [ebx+file_handle_7z.pos], ecx |
||
2738 | adc dword [ebx+file_handle_7z.pos], edx |
||
2739 | .ret: |
||
2740 | ret 12 |
||
2741 | .backward: |
||
2742 | ; move backward - reinitialize and skip start data |
||
2743 | mov [ebx+file_handle_7z.bError], 0 |
||
2744 | mov ebp, [ebx+file_handle_7z.context] |
||
2745 | mov eax, [ebx+file_handle_7z.item] |
||
2746 | mov ebx, [edi+handle_7z.folders] |
||
2747 | mov eax, [eax+file_in_7z.folder] |
||
2748 | mov ebx, [ebx+eax*4] |
||
2749 | ; initialize streamInfos for decoders |
||
2750 | xor ecx, ecx |
||
2751 | mov esi, [ebx+_7z.StreamsInfo.unpackSizes] |
||
2752 | @@: |
||
2753 | lodsd |
||
2754 | mov [ebp], eax |
||
2755 | lodsd |
||
2756 | mov [ebp+4], eax |
||
2757 | and [ebp+streamInfo.bufDataLen], 0 |
||
2758 | push esi |
||
2759 | mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4] |
||
2760 | call _7z.GetCoder |
||
2761 | movzx esi, byte [eax+4] |
||
2762 | lea esi, [esi+eax+17] |
||
2763 | push ebx ecx edi |
||
2764 | mov bl, 1 |
||
2765 | call [_7z.InitTable+edx*4] |
||
2766 | pop edi ecx ebx esi |
||
2767 | mov edx, [ebp+streamInfo.bufSize] |
||
2768 | mov ebp, [ebp+streamInfo.bufPtr] |
||
2769 | add ebp, edx |
||
2770 | inc ecx |
||
2771 | cmp ecx, [ebx+_7z.StreamsInfo.numCoders] |
||
2772 | jb @b |
||
2773 | ; initialize streamInfos for input streams |
||
2774 | xor ecx, ecx |
||
2775 | mov esi, [ebx+_7z.StreamsInfo.startPackedStream] |
||
2776 | shl esi, 3 |
||
2777 | add esi, [edi+handle_7z.packSizes] |
||
2778 | mov edi, dword [ebx+_7z.StreamsInfo.packOffset] |
||
2779 | mov edx, dword [ebx+_7z.StreamsInfo.packOffset+4] |
||
2780 | @@: |
||
2781 | mov dword [ebp+streamInfo.size], edi |
||
2782 | mov dword [ebp+streamInfo.size+4], edx |
||
2783 | and [ebp+streamInfo.bufDataLen], 0 |
||
2784 | lodsd |
||
2785 | add edi, eax |
||
2786 | mov [ebp], eax |
||
2787 | lodsd |
||
2788 | adc edx, eax |
||
2789 | mov [ebp+4], eax |
||
2790 | add ebp, 0x4000 |
||
2791 | inc ecx |
||
2792 | cmp ecx, [ebx+_7z.StreamsInfo.numPackedStreams] |
||
2793 | jb @b |
||
2794 | mov ebx, [esp+4] |
||
2795 | mov esi, [ebx+file_handle_7z.item] |
||
2796 | mov eax, [ebx+file_handle_7z.mainStream] |
||
2797 | mov ecx, dword [esi+file_in_7z.folderStart] |
||
2798 | add ecx, [esp+8] |
||
2799 | mov dword [eax+streamInfo.fullSize], ecx |
||
2800 | mov ecx, dword [esi+file_in_7z.folderStart+4] |
||
2801 | adc ecx, [esp+12] |
||
2802 | mov dword [eax+streamInfo.fullSize+4], ecx |
||
2803 | and dword [ebx+file_handle_7z.pos], 0 |
||
2804 | and dword [ebx+file_handle_7z.pos+4], 0 |
||
2805 | and [eax+streamInfo.bufDataLen], 0 |
||
2806 | call skip_7z |
||
2807 | mov eax, [esp+8] |
||
2808 | mov dword [ebx+file_handle_7z.pos], eax |
||
2809 | mov eax, [esp+12] |
||
2810 | mov dword [ebx+file_handle_7z.pos+4], eax |
||
2811 | ret 12 |
||
2812 | |||
2813 | close_file_7z: |
||
2814 | mov ecx, [ebx+file_handle_7z.context] |
||
2815 | jecxz .ret |
||
2816 | cmp [ebx+file_handle_7z.bError], 0 |
||
2817 | jnz @f |
||
2818 | push ebp |
||
2819 | mov ebp, [ebx+file_handle_7z.base] |
||
2820 | xchg ecx, [ebp+handle_7z.last_context] |
||
2821 | mov eax, [ebx+file_handle_7z.item] |
||
2822 | mov edx, [eax+file_in_7z.folder] |
||
2823 | mov [ebp+handle_7z.last_folder], edx |
||
2824 | mov edx, [ebx+file_handle_7z.mainStream] |
||
2825 | mov [ebp+handle_7z.last_main_stream], edx |
||
2826 | mov edx, dword [eax+file_in_7z.folderStart+4] |
||
2827 | mov eax, dword [eax+file_in_7z.folderStart] |
||
2828 | add eax, dword [ebx+file_handle_7z.pos] |
||
2829 | adc edx, dword [ebx+file_handle_7z.pos+4] |
||
2830 | mov dword [ebp+handle_7z.last_pos], eax |
||
2831 | mov dword [ebp+handle_7z.last_pos+4], edx |
||
2832 | pop ebp |
||
2833 | @@: |
||
2834 | jecxz @f |
||
2835 | call [pgfree] |
||
2836 | @@: |
||
2837 | mov esi, ebx |
||
2838 | call free_handle |
||
2839 | .ret: |
||
2840 | ret 4 |