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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 4277 $ |
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9 | |||
2889 | turbanoff | 10 | ERROR_SUCCESS = 0 |
11 | ERROR_DISK_BASE = 1 |
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12 | ERROR_UNSUPPORTED_FS = 2 |
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13 | ERROR_UNKNOWN_FS = 3 |
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14 | ERROR_PARTITION = 4 |
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15 | ERROR_FILE_NOT_FOUND = 5 |
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16 | ERROR_END_OF_FILE = 6 |
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17 | ERROR_MEMORY_POINTER = 7 |
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18 | ERROR_DISK_FULL = 8 |
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19 | ERROR_FAT_TABLE = 9 ;deprecated |
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20 | ERROR_FS_FAIL = 9 |
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21 | ERROR_ACCESS_DENIED = 10 |
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22 | ERROR_DEVICE = 11 |
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2288 | clevermous | 23 | |
24 | image_of_eax EQU esp+32 |
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25 | image_of_ebx EQU esp+20 |
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26 | |||
27 | ; System function 70 - files with long names (LFN) |
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28 | ; diamond, 2006 |
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29 | |||
30 | iglobal |
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31 | ; in this table names must be in lowercase |
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32 | rootdirs: |
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33 | ;********************************************** |
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34 | db 3,'cd0' |
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35 | dd fs_OnCd0 |
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36 | dd fs_NextCd |
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37 | db 3,'cd1' |
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38 | dd fs_OnCd1 |
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39 | dd fs_NextCd |
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40 | db 3,'cd2' |
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41 | dd fs_OnCd2 |
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42 | dd fs_NextCd |
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43 | db 3,'cd3' |
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44 | dd fs_OnCd3 |
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45 | dd fs_NextCd |
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46 | ;*********************************************** |
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47 | db 0 |
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48 | |||
49 | |||
50 | virtual_root_query: |
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51 | ;********************************************** |
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52 | dd fs_HasCd0 |
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53 | db 'cd0',0 |
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54 | dd fs_HasCd1 |
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55 | db 'cd1',0 |
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56 | dd fs_HasCd2 |
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57 | db 'cd2',0 |
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58 | dd fs_HasCd3 |
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59 | db 'cd3',0 |
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60 | ;********************************************** |
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61 | dd 0 |
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62 | endg |
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3296 | clevermous | 63 | |
64 | file_system_lfn_protected: |
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65 | pushad |
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66 | call protect_from_terminate |
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67 | call file_system_lfn |
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68 | call unprotect_from_terminate |
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69 | popad |
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70 | mov [image_of_eax], eax |
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71 | mov [image_of_ebx], ebx |
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72 | ret |
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73 | |||
2288 | clevermous | 74 | file_system_lfn: |
75 | ; in: ebx->fileinfo block |
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76 | ; operation codes: |
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77 | ; 0 : read file |
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78 | ; 1 : read folder |
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79 | ; 2 : create/rewrite file |
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80 | ; 3 : write/append to file |
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81 | ; 4 : set end of file |
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82 | ; 5 : get file/directory attributes structure |
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83 | ; 6 : set file/directory attributes structure |
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84 | ; 7 : start application |
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85 | ; 8 : delete file |
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86 | ; 9 : create directory |
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87 | |||
88 | ; parse file name |
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89 | lea esi, [ebx+20] |
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90 | lodsb |
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91 | test al, al |
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92 | jnz @f |
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93 | mov esi, [esi] |
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94 | lodsb |
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95 | @@: |
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96 | cmp al, '/' |
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97 | jz .notcurdir |
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98 | dec esi |
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99 | mov ebp, esi |
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100 | test al, al |
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101 | jnz @f |
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102 | xor ebp, ebp |
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103 | @@: |
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104 | mov esi, [current_slot] |
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105 | mov esi, [esi+APPDATA.cur_dir] |
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106 | jmp .parse_normal |
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107 | .notcurdir: |
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108 | cmp byte [esi], 0 |
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109 | jz .rootdir |
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110 | call process_replace_file_name |
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111 | .parse_normal: |
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112 | cmp dword [ebx], 7 |
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113 | jne @F |
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114 | mov edx, [ebx+4] |
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115 | mov ebx, [ebx+8] |
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116 | call fs_execute; esi+ebp, ebx, edx |
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117 | mov [image_of_eax], eax |
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118 | ret |
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119 | @@: |
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120 | mov edi, rootdirs-8 |
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121 | xor ecx, ecx |
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122 | push esi |
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123 | .scan1: |
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124 | pop esi |
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125 | add edi, ecx |
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126 | scasd |
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127 | scasd |
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128 | mov cl, byte [edi] |
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129 | test cl, cl |
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130 | jz .notfound_try |
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131 | inc edi |
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132 | push esi |
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133 | @@: |
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134 | lodsb |
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135 | or al, 20h |
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136 | scasb |
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137 | loopz @b |
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138 | jnz .scan1 |
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139 | lodsb |
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140 | cmp al, '/' |
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141 | jz .found1 |
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142 | test al, al |
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143 | jnz .scan1 |
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144 | pop eax |
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145 | ; directory /xxx |
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146 | .maindir: |
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147 | mov esi, [edi+4] |
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148 | .maindir_noesi: |
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149 | cmp dword [ebx], 1 |
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150 | jnz .access_denied |
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151 | xor eax, eax |
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152 | mov ebp, [ebx+12] ;количество блоков для считывания |
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153 | mov edx, [ebx+16] ;куда записывать рузельтат |
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154 | ; add edx, std_application_base_address |
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155 | push dword [ebx+4] ; first block |
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156 | mov ebx, [ebx+8] ; flags |
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157 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
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158 | mov edi, edx |
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159 | push ecx |
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160 | mov ecx, 32/4 |
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161 | rep stosd |
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162 | pop ecx |
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163 | mov byte [edx], 1 ; version |
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164 | .maindir_loop: |
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165 | call esi |
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166 | jc .maindir_done |
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167 | inc dword [edx+8] |
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168 | dec dword [esp] |
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169 | jns .maindir_loop |
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170 | dec ebp |
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171 | js .maindir_loop |
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172 | inc dword [edx+4] |
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173 | mov dword [edi], 0x10 ; attributes: folder |
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174 | mov dword [edi+4], 1 ; name type: UNICODE |
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175 | push eax |
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176 | xor eax, eax |
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177 | add edi, 8 |
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178 | push ecx |
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179 | mov ecx, 40/4-2 |
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180 | rep stosd |
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181 | pop ecx |
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182 | pop eax |
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183 | push eax edx |
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184 | ; convert number in eax to decimal UNICODE string |
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185 | push edi |
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186 | push ecx |
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187 | push -'0' |
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188 | mov ecx, 10 |
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189 | @@: |
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190 | xor edx, edx |
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191 | div ecx |
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192 | push edx |
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193 | test eax, eax |
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194 | jnz @b |
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195 | @@: |
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196 | pop eax |
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197 | add al, '0' |
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198 | stosb |
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199 | test bl, 1 ; UNICODE name? |
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200 | jz .ansi2 |
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201 | mov byte [edi], 0 |
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202 | inc edi |
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203 | .ansi2: |
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204 | test al, al |
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205 | jnz @b |
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206 | mov byte [edi-1], 0 |
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207 | pop ecx |
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208 | pop edi |
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209 | ; UNICODE name length is 520 bytes, ANSI - 264 |
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210 | add edi, 520 |
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211 | test bl, 1 |
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212 | jnz @f |
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213 | sub edi, 520-264 |
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214 | @@: |
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215 | pop edx eax |
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216 | jmp .maindir_loop |
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217 | .maindir_done: |
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218 | pop eax |
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219 | mov ebx, [edx+4] |
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220 | xor eax, eax |
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221 | dec ebp |
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222 | js @f |
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223 | mov al, ERROR_END_OF_FILE |
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224 | @@: |
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225 | mov [image_of_eax], eax |
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226 | mov [image_of_ebx], ebx |
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227 | ret |
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228 | ; directory / |
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229 | .rootdir: |
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230 | cmp dword [ebx], 1 ; read folder? |
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231 | jz .readroot |
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232 | .access_denied: |
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233 | mov dword [image_of_eax], 10 ; access denied |
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234 | ret |
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235 | |||
236 | .readroot: |
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237 | ; virtual root folder - special handler |
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238 | mov ebp, [ebx+12] |
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239 | mov edx, [ebx+16] |
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240 | ; add edx, std_application_base_address |
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241 | push dword [ebx+4] ; first block |
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242 | mov ebx, [ebx+8] ; flags |
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243 | xor eax, eax |
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244 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
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245 | mov edi, edx |
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246 | mov ecx, 32/4 |
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247 | rep stosd |
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248 | mov byte [edx], 1 ; version |
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4277 | clevermous | 249 | sub esp, 16 |
250 | .readroot_ah_loop2: |
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251 | push edi |
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252 | lea edi, [esp+4] |
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253 | call dyndisk_enum_root |
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254 | pop edi |
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255 | test eax, eax |
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256 | jz .readroot_done_dynamic |
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257 | inc dword [edx+8] |
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258 | dec dword [esp+16] |
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259 | jns .readroot_ah_loop2 |
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260 | dec ebp |
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261 | js .readroot_ah_loop2 |
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262 | push eax |
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263 | xor eax, eax |
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264 | inc dword [edx+4] |
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265 | mov dword [edi], 0x10 ; attributes: folder |
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266 | mov dword [edi+4], ebx |
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267 | add edi, 8 |
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268 | mov ecx, 40/4-2 |
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269 | rep stosd |
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270 | push esi edi |
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271 | lea esi, [esp+12] |
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272 | @@: |
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273 | lodsb |
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274 | stosb |
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275 | test bl, 1 |
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276 | jz .ansi3 |
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277 | mov byte [edi], 0 |
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278 | inc edi |
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279 | .ansi3: |
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280 | test al, al |
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281 | jnz @b |
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282 | pop edi esi eax |
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283 | add edi, 520 |
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284 | test bl, 1 |
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285 | jnz .readroot_ah_loop2 |
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286 | sub edi, 520-264 |
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287 | jmp .readroot_ah_loop2 |
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288 | .readroot_done_dynamic: |
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289 | add esp, 16 |
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290 | mov esi, virtual_root_query |
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2288 | clevermous | 291 | .readroot_loop: |
292 | cmp dword [esi], eax |
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4277 | clevermous | 293 | jz .readroot_done |
2288 | clevermous | 294 | call dword [esi] |
295 | add esi, 4 |
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296 | test eax, eax |
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297 | jnz @f |
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298 | .readroot_next: |
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299 | or ecx, -1 |
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300 | xchg esi, edi |
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301 | repnz scasb |
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302 | xchg esi, edi |
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303 | jmp .readroot_loop |
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304 | @@: |
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305 | xor eax, eax |
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306 | inc dword [edx+8] |
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307 | dec dword [esp] |
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308 | jns .readroot_next |
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309 | dec ebp |
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310 | js .readroot_next |
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311 | inc dword [edx+4] |
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312 | mov dword [edi], 0x10 ; attributes: folder |
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313 | mov dword [edi+4], ebx ; name type: UNICODE |
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314 | add edi, 8 |
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315 | mov ecx, 40/4-2 |
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316 | rep stosd |
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317 | push edi |
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318 | @@: |
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319 | lodsb |
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320 | stosb |
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321 | test bl, 1 |
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322 | jz .ansi |
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323 | mov byte [edi], 0 |
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324 | inc edi |
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325 | .ansi: |
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326 | test eax, eax |
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327 | jnz @b |
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328 | pop edi |
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329 | add edi, 520 |
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330 | test bl, 1 |
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331 | jnz .readroot_loop |
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332 | sub edi, 520-264 |
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333 | jmp .readroot_loop |
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334 | .readroot_done: |
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335 | pop eax |
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336 | mov ebx, [edx+4] |
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337 | xor eax, eax |
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338 | dec ebp |
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339 | js @f |
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340 | mov al, ERROR_END_OF_FILE |
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341 | @@: |
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342 | mov [image_of_eax], eax |
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343 | mov [image_of_ebx], ebx |
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344 | ret |
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345 | .notfound_try: |
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4277 | clevermous | 346 | call dyndisk_handler |
2288 | clevermous | 347 | .notfound: |
348 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
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349 | and dword [image_of_ebx], 0 |
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350 | ret |
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351 | |||
352 | .notfounda: |
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353 | cmp edi, esp |
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354 | jnz .notfound |
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355 | call dword [edi+4] |
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356 | add esp, 16 |
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357 | jmp .notfound |
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358 | |||
359 | .found1: |
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360 | pop eax |
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361 | cmp byte [esi], 0 |
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362 | jz .maindir |
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363 | .found2: |
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364 | ; read partition number |
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365 | xor ecx, ecx |
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366 | xor eax, eax |
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367 | @@: |
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368 | lodsb |
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369 | cmp al, '/' |
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370 | jz .done1 |
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371 | test al, al |
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372 | jz .done1 |
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373 | sub al, '0' |
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374 | cmp al, 9 |
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375 | ja .notfounda |
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376 | lea ecx, [ecx*5] |
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377 | lea ecx, [ecx*2+eax] |
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378 | jmp @b |
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379 | .done1: |
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380 | jecxz .notfounda |
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381 | test al, al |
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382 | jnz @f |
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383 | dec esi |
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384 | @@: |
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385 | cmp byte [esi], 0 |
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386 | jnz @f |
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387 | test ebp, ebp |
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388 | jz @f |
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389 | mov esi, ebp |
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390 | xor ebp, ebp |
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391 | @@: |
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392 | ; now [edi] contains handler address, ecx - partition number, |
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393 | ; esi points to ASCIIZ string - rest of name |
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394 | jmp dword [edi] |
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395 | |||
396 | ; handlers for devices |
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397 | ; in: ecx = 0 => query virtual directory /xxx |
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398 | ; in: ecx = partition number |
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399 | ; esi -> relative (for device) name |
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400 | ; ebx -> fileinfo |
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401 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
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402 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
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403 | |||
404 | fs_NotImplemented: |
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405 | mov eax, 2 |
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406 | ret |
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407 | |||
408 | ;******************************************************* |
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409 | fs_OnCd0: |
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410 | call reserve_cd |
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411 | mov [ChannelNumber], 1 |
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412 | mov [DiskNumber], 0 |
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413 | push 6 |
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414 | push 1 |
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415 | jmp fs_OnCd |
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416 | fs_OnCd1: |
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417 | call reserve_cd |
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418 | mov [ChannelNumber], 1 |
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419 | mov [DiskNumber], 1 |
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420 | push 4 |
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421 | push 2 |
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422 | jmp fs_OnCd |
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423 | fs_OnCd2: |
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424 | call reserve_cd |
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425 | mov [ChannelNumber], 2 |
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426 | mov [DiskNumber], 0 |
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427 | push 2 |
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428 | push 3 |
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429 | jmp fs_OnCd |
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430 | fs_OnCd3: |
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431 | call reserve_cd |
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432 | mov [ChannelNumber], 2 |
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433 | mov [DiskNumber], 1 |
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434 | push 0 |
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435 | push 4 |
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436 | fs_OnCd: |
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437 | call reserve_cd_channel |
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438 | pop eax |
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439 | mov [cdpos], eax |
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440 | pop eax |
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441 | cmp ecx, 0x100 |
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442 | jae .nf |
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443 | push ecx ebx |
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444 | mov cl, al |
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445 | mov bl, [DRIVE_DATA+1] |
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446 | shr bl, cl |
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447 | test bl, 2 |
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448 | pop ebx ecx |
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449 | |||
450 | jnz @f |
||
451 | .nf: |
||
452 | call free_cd_channel |
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453 | and [cd_status], 0 |
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454 | mov dword [image_of_eax], 5 ; not found |
||
455 | ret |
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456 | @@: |
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457 | mov ecx, [ebx+12] |
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458 | mov edx, [ebx+16] |
||
459 | ; add edx, std_application_base_address |
||
460 | mov eax, [ebx] |
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461 | cmp eax, fs_NumCdServices |
||
462 | jae .not_impl |
||
463 | add ebx, 4 |
||
464 | call dword [fs_CdServices + eax*4] |
||
465 | call free_cd_channel |
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466 | and [cd_status], 0 |
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467 | mov [image_of_eax], eax |
||
468 | mov [image_of_ebx], ebx |
||
469 | ret |
||
470 | .not_impl: |
||
471 | call free_cd_channel |
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472 | and [cd_status], 0 |
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473 | mov dword [image_of_eax], 2 ; not implemented |
||
474 | ret |
||
475 | |||
476 | fs_CdServices: |
||
477 | dd fs_CdRead |
||
478 | dd fs_CdReadFolder |
||
479 | dd fs_NotImplemented |
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480 | dd fs_NotImplemented |
||
481 | dd fs_NotImplemented |
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482 | dd fs_CdGetFileInfo |
||
483 | dd fs_NotImplemented |
||
484 | dd 0 |
||
485 | dd fs_NotImplemented |
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486 | dd fs_NotImplemented |
||
487 | fs_NumCdServices = ($ - fs_CdServices)/4 |
||
488 | |||
489 | ;******************************************************* |
||
490 | fs_HasCd0: |
||
3627 | Serge | 491 | test byte [DRIVE_DATA+1], 10000000b |
492 | setnz al |
||
2288 | clevermous | 493 | ret |
494 | fs_HasCd1: |
||
3627 | Serge | 495 | test byte [DRIVE_DATA+1], 00100000b |
496 | setnz al |
||
2288 | clevermous | 497 | ret |
498 | fs_HasCd2: |
||
3627 | Serge | 499 | test byte [DRIVE_DATA+1], 00001000b |
500 | setnz al |
||
2288 | clevermous | 501 | ret |
502 | fs_HasCd3: |
||
3627 | Serge | 503 | test byte [DRIVE_DATA+1], 00000010b |
504 | setnz al |
||
2288 | clevermous | 505 | ret |
506 | ;******************************************************* |
||
507 | |||
508 | ; fs_NextXXX functions: |
||
509 | ; in: eax = partition number, from which start to scan |
||
510 | ; out: CF=1 => no more partitions |
||
511 | ; CF=0 => eax=next partition number |
||
512 | |||
513 | ;******************************************************* |
||
514 | fs_NextCd: |
||
515 | ; we always have /cdX/1 |
||
516 | test eax, eax |
||
517 | stc |
||
518 | jnz @f |
||
519 | mov al, 1 |
||
520 | clc |
||
521 | @@: |
||
522 | ret |
||
523 | ;******************************************************* |
||
524 | |||
3689 | mario79 | 525 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 526 | process_replace_file_name: |
3663 | mario79 | 527 | ; in |
528 | ; esi - path with filename(f.70) |
||
529 | ; |
||
530 | ; out |
||
531 | ; ebp - full filename |
||
3689 | mario79 | 532 | pushfd |
533 | cli |
||
2288 | clevermous | 534 | mov ebp, [full_file_name_table] |
3689 | mario79 | 535 | xor edi, edi |
2288 | clevermous | 536 | .loop: |
3711 | clevermous | 537 | cmp edi, [full_file_name_table.size] |
3689 | mario79 | 538 | jae .notfound |
2288 | clevermous | 539 | push esi edi |
3689 | mario79 | 540 | shl edi, 7 ; edi*128 |
541 | add edi, ebp |
||
2288 | clevermous | 542 | @@: |
3689 | mario79 | 543 | cmp byte [edi], 0 ; end of dir_name |
2288 | clevermous | 544 | jz .dest_done |
545 | lodsb |
||
546 | test al, al |
||
547 | jz .cont |
||
3689 | mario79 | 548 | or al, 20h ; 32 - space char |
2288 | clevermous | 549 | scasb |
550 | jz @b |
||
551 | jmp .cont |
||
552 | .dest_done: |
||
553 | cmp byte [esi], 0 |
||
554 | jz .found |
||
555 | cmp byte [esi], '/' |
||
556 | jnz .cont |
||
557 | inc esi |
||
558 | jmp .found |
||
559 | .cont: |
||
560 | pop edi esi |
||
3689 | mario79 | 561 | inc edi |
2288 | clevermous | 562 | jmp .loop |
563 | .found: |
||
564 | pop edi eax |
||
3689 | mario79 | 565 | shl edi, 7 ; edi*128 |
566 | add edi, ebp |
||
2288 | clevermous | 567 | mov ebp, esi |
568 | cmp byte [esi], 0 |
||
569 | lea esi, [edi+64] |
||
570 | jnz .ret |
||
571 | .notfound: |
||
572 | xor ebp, ebp |
||
573 | .ret: |
||
3689 | mario79 | 574 | popfd |
2288 | clevermous | 575 | ret |
3689 | mario79 | 576 | ;----------------------------------------------------------------------------- |
3663 | mario79 | 577 | uglobal |
578 | lock_flag_for_f30_3 rb 1 |
||
579 | endg |
||
580 | |||
2288 | clevermous | 581 | sys_current_directory: |
582 | ; mov esi, [current_slot] |
||
583 | ; mov esi, [esi+APPDATA.cur_dir] |
||
584 | ; mov edx, esi |
||
585 | |||
586 | ;get length string of appdata.cur_dir |
||
587 | mov eax, [current_slot] |
||
588 | mov edi, [eax+APPDATA.cur_dir] |
||
589 | |||
590 | dec ebx |
||
591 | jz .set |
||
592 | dec ebx |
||
593 | jz .get |
||
3663 | mario79 | 594 | dec ebx |
595 | jz .mount_additional_directory |
||
2288 | clevermous | 596 | ret |
3663 | mario79 | 597 | |
598 | .mount_additional_directory: |
||
599 | ; sysfunction 30.2: [for app] eax=30,ebx=3,ecx->dir name+dir path (128) |
||
600 | ; for our code: nothing |
||
601 | |||
602 | ; check lock of the function |
||
603 | cmp [lock_flag_for_f30_3], 1 |
||
604 | je @f |
||
605 | |||
606 | mov esi, ecx |
||
607 | mov edi, sysdir_name1 |
||
608 | ; copying fake directory name |
||
609 | mov ecx, 63 |
||
3711 | clevermous | 610 | pushfd |
611 | cli |
||
3663 | mario79 | 612 | cld |
3711 | clevermous | 613 | rep movsb |
3663 | mario79 | 614 | ; terminator of name, in case if we get the inlet trash |
615 | inc esi |
||
616 | xor eax, eax |
||
617 | stosb |
||
618 | ; copying real directory path for mounting |
||
619 | mov ecx, 63 |
||
3711 | clevermous | 620 | rep movsb |
3663 | mario79 | 621 | ; terminator of name, in case if we get the inlet trash |
622 | xor eax, eax |
||
623 | stosb |
||
624 | ; increase the pointer of inputs for procedure "process_replace_file_name" |
||
625 | mov [full_file_name_table.size], 2 |
||
626 | ; block the ability to call f.30.3 because for one session is necessary |
||
627 | ; for us only once |
||
628 | mov [lock_flag_for_f30_3], 1 |
||
3711 | clevermous | 629 | popfd |
3663 | mario79 | 630 | @@: |
631 | ret |
||
632 | |||
2288 | clevermous | 633 | .get: |
634 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
635 | ; for our code: ebx->buffer,ecx=len |
||
636 | max_cur_dir equ 0x1000 |
||
637 | |||
638 | mov ebx, edi |
||
639 | |||
640 | push ecx |
||
641 | push edi |
||
642 | |||
643 | xor eax, eax |
||
644 | mov ecx, max_cur_dir |
||
645 | |||
646 | repne scasb ;find zerro at and string |
||
647 | jnz .error ; no zero in cur_dir: internal error, should not happen |
||
648 | |||
649 | sub edi, ebx ;lenght for copy |
||
650 | inc edi |
||
651 | mov [esp+32+8], edi ;return in eax |
||
652 | |||
653 | cmp edx, edi |
||
654 | jbe @f |
||
655 | mov edx, edi |
||
656 | @@: |
||
657 | ;source string |
||
658 | pop esi |
||
659 | ;destination string |
||
660 | pop edi |
||
661 | cmp edx, 1 |
||
662 | jbe .ret |
||
663 | |||
664 | mov al, '/' ;start string with '/' |
||
665 | stosb |
||
666 | mov ecx, edx |
||
667 | rep movsb ;copy string |
||
668 | .ret: |
||
669 | ret |
||
670 | |||
671 | .error: |
||
672 | add esp, 8 |
||
673 | or dword [esp+32], -1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
674 | ret |
||
675 | .set: |
||
676 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
677 | ; for our code: ebx->string to set |
||
678 | ; use generic resolver with APPDATA.cur_dir as destination |
||
679 | push max_cur_dir ;0x1000 |
||
680 | push edi ;destination |
||
681 | mov ebx, ecx |
||
682 | call get_full_file_name |
||
683 | ret |
||
684 | |||
685 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
686 | ; destroys all registers except ebp,esp |
||
687 | get_full_file_name: |
||
688 | push ebp |
||
689 | mov esi, [current_slot] |
||
690 | mov esi, [esi+APPDATA.cur_dir] |
||
691 | mov edx, esi |
||
692 | @@: |
||
693 | inc esi |
||
694 | cmp byte [esi-1], 0 |
||
695 | jnz @b |
||
696 | dec esi |
||
697 | cmp byte [ebx], '/' |
||
698 | jz .set_absolute |
||
699 | ; string gives relative path |
||
700 | mov edi, [esp+8] ; destination |
||
701 | .relative: |
||
702 | cmp byte [ebx], 0 |
||
703 | jz .set_ok |
||
704 | cmp word [ebx], '.' |
||
705 | jz .set_ok |
||
706 | cmp word [ebx], './' |
||
707 | jnz @f |
||
708 | add ebx, 2 |
||
709 | jmp .relative |
||
710 | @@: |
||
711 | cmp word [ebx], '..' |
||
712 | jnz .doset_relative |
||
713 | cmp byte [ebx+2], 0 |
||
714 | jz @f |
||
715 | cmp byte [ebx+2], '/' |
||
716 | jnz .doset_relative |
||
717 | @@: |
||
718 | dec esi |
||
719 | cmp byte [esi], '/' |
||
720 | jnz @b |
||
721 | add ebx, 3 |
||
722 | jmp .relative |
||
723 | .set_ok: |
||
724 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
725 | jz .set_ok.cur_dir |
||
726 | sub esi, edx |
||
727 | cmp esi, [esp+12] |
||
728 | jb .set_ok.copy |
||
729 | .fail: |
||
730 | mov byte [edi], 0 |
||
731 | xor eax, eax ; fail |
||
732 | pop ebp |
||
733 | ret 8 |
||
734 | .set_ok.copy: |
||
735 | mov ecx, esi |
||
736 | mov esi, edx |
||
737 | rep movsb |
||
738 | mov byte [edi], 0 |
||
739 | .ret.ok: |
||
740 | mov al, 1 ; ok |
||
741 | pop ebp |
||
742 | ret 8 |
||
743 | .set_ok.cur_dir: |
||
744 | mov byte [esi], 0 |
||
745 | jmp .ret.ok |
||
746 | .doset_relative: |
||
747 | cmp edx, edi |
||
748 | jz .doset_relative.cur_dir |
||
749 | sub esi, edx |
||
750 | cmp esi, [esp+12] |
||
751 | jae .fail |
||
752 | mov ecx, esi |
||
753 | mov esi, edx |
||
754 | mov edx, edi |
||
755 | rep movsb |
||
756 | jmp .doset_relative.copy |
||
757 | .doset_relative.cur_dir: |
||
758 | mov edi, esi |
||
759 | .doset_relative.copy: |
||
760 | add edx, [esp+12] |
||
761 | mov byte [edi], '/' |
||
762 | inc edi |
||
763 | cmp edi, edx |
||
764 | jae .overflow |
||
765 | @@: |
||
766 | mov al, [ebx] |
||
767 | inc ebx |
||
768 | stosb |
||
769 | test al, al |
||
770 | jz .ret.ok |
||
771 | cmp edi, edx |
||
772 | jb @b |
||
773 | .overflow: |
||
774 | dec edi |
||
775 | jmp .fail |
||
776 | .set_absolute: |
||
777 | lea esi, [ebx+1] |
||
778 | call process_replace_file_name |
||
779 | mov edi, [esp+8] |
||
780 | mov edx, [esp+12] |
||
781 | add edx, edi |
||
782 | .set_copy: |
||
783 | lodsb |
||
784 | stosb |
||
785 | test al, al |
||
786 | jz .set_part2 |
||
787 | .set_copy_cont: |
||
788 | cmp edi, edx |
||
789 | jb .set_copy |
||
790 | jmp .overflow |
||
791 | .set_part2: |
||
792 | mov esi, ebp |
||
793 | xor ebp, ebp |
||
794 | test esi, esi |
||
795 | jz .ret.ok |
||
796 | mov byte [edi-1], '/' |
||
797 | jmp .set_copy_cont |