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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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6468 | pathoswith | 3 | ;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License. ;; |
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2288 | clevermous | 5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 6468 $ |
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9 | |||
6468 | pathoswith | 10 | ; CD external functions |
11 | ; in: |
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12 | ; esi -> path string |
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13 | ; ebx -> offset in file (qword) |
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14 | ; ecx = bytes to read |
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15 | ; edx -> buffer |
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16 | ; out: |
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17 | ; eax, ebx = return values for sysfunc 70 |
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18 | iglobal |
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19 | align 4 |
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20 | fs_CdServices: |
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21 | dd fs_CdRead |
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22 | dd fs_CdReadFolder |
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23 | dd fs_NotImplemented |
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24 | dd fs_NotImplemented |
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25 | dd fs_NotImplemented |
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26 | dd fs_CdGetFileInfo |
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27 | dd fs_NotImplemented |
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28 | dd 0 |
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29 | dd fs_NotImplemented |
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30 | dd fs_NotImplemented |
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31 | fs_NumCdServices = ($ - fs_CdServices)/4 |
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32 | endg |
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33 | |||
2288 | clevermous | 34 | uglobal |
6468 | pathoswith | 35 | align 4 |
36 | cd_current_pointer_of_input dd 0 |
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37 | cd_current_pointer_of_input_2 dd 0 |
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38 | cd_mem_location dd 0 |
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39 | cd_counter_block dd 0 |
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40 | cd_status dd 0 |
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2288 | clevermous | 41 | endg |
6468 | pathoswith | 42 | |
4700 | mario79 | 43 | ;----------------------------------------------------------------------------- |
6468 | pathoswith | 44 | fs_NotImplemented: |
45 | movi eax, ERROR_UNSUPPORTED_FS |
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46 | ret |
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47 | ;----------------------------------------------------------------------------- |
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2288 | clevermous | 48 | reserve_cd: |
49 | cli |
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50 | cmp [cd_status], 0 |
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51 | je reserve_ok2 |
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52 | |||
53 | sti |
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54 | call change_task |
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55 | jmp reserve_cd |
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4700 | mario79 | 56 | ;----------------------------------------------------------------------------- |
57 | reserve_ok2: |
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2288 | clevermous | 58 | push eax |
59 | mov eax, [CURRENT_TASK] |
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60 | shl eax, 5 |
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61 | mov eax, [eax+CURRENT_TASK+TASKDATA.pid] |
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62 | mov [cd_status], eax |
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63 | pop eax |
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64 | sti |
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65 | ret |
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4700 | mario79 | 66 | ;----------------------------------------------------------------------------- |
67 | reserve_cd_channel: |
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68 | pushad |
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69 | mov eax, [cdpos] |
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70 | dec eax |
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71 | shr eax, 2 |
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2288 | clevermous | 72 | |
4700 | mario79 | 73 | test eax, eax |
74 | jnz .1 |
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75 | |||
2288 | clevermous | 76 | cmp [ChannelNumber], 1 |
4700 | mario79 | 77 | jne @f |
78 | |||
3742 | clevermous | 79 | mov ecx, ide_channel1_mutex |
4700 | mario79 | 80 | jmp .mutex_lock |
81 | ;-------------------------------------- |
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82 | @@: |
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83 | mov ecx, ide_channel2_mutex |
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84 | jmp .mutex_lock |
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85 | ;-------------------------------------- |
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86 | .1: |
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87 | dec eax |
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88 | jnz .2 |
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89 | |||
90 | cmp [ChannelNumber], 1 |
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91 | jne @f |
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92 | |||
93 | mov ecx, ide_channel3_mutex |
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94 | jmp .mutex_lock |
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95 | ;-------------------------------------- |
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96 | @@: |
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97 | mov ecx, ide_channel4_mutex |
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98 | jmp .mutex_lock |
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99 | ;-------------------------------------- |
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100 | .2: |
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101 | cmp [ChannelNumber], 1 |
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102 | jne @f |
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103 | |||
104 | mov ecx, ide_channel5_mutex |
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105 | jmp .mutex_lock |
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106 | ;-------------------------------------- |
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107 | @@: |
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108 | mov ecx, ide_channel6_mutex |
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109 | .mutex_lock: |
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3742 | clevermous | 110 | call mutex_lock |
111 | popad |
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2288 | clevermous | 112 | ret |
4700 | mario79 | 113 | ;----------------------------------------------------------------------------- |
114 | free_cd_channel: |
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3742 | clevermous | 115 | pushad |
4700 | mario79 | 116 | mov eax, [cdpos] |
117 | dec eax |
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118 | shr eax, 2 |
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2288 | clevermous | 119 | |
4700 | mario79 | 120 | test eax, eax |
121 | jnz .1 |
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122 | |||
2288 | clevermous | 123 | cmp [ChannelNumber], 1 |
4700 | mario79 | 124 | jne @f |
125 | |||
3742 | clevermous | 126 | mov ecx, ide_channel1_mutex |
4700 | mario79 | 127 | jmp .mutex_unlock |
128 | ;-------------------------------------- |
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129 | @@: |
||
3742 | clevermous | 130 | mov ecx, ide_channel2_mutex |
4700 | mario79 | 131 | jmp .mutex_unlock |
132 | ;-------------------------------------- |
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133 | .1: |
||
134 | dec eax |
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135 | jnz .2 |
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136 | |||
137 | cmp [ChannelNumber], 1 |
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138 | jne @f |
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139 | |||
140 | mov ecx, ide_channel3_mutex |
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141 | jmp .mutex_unlock |
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142 | ;-------------------------------------- |
||
143 | @@: |
||
144 | mov ecx, ide_channel4_mutex |
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145 | jmp .mutex_unlock |
||
146 | ;-------------------------------------- |
||
147 | .2: |
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148 | cmp [ChannelNumber], 1 |
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149 | jne @f |
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150 | |||
151 | mov ecx, ide_channel5_mutex |
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152 | jmp .mutex_unlock |
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153 | ;-------------------------------------- |
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154 | @@: |
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155 | mov ecx, ide_channel6_mutex |
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156 | .mutex_unlock: |
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3742 | clevermous | 157 | call mutex_unlock |
158 | popad |
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2288 | clevermous | 159 | ret |
6468 | pathoswith | 160 | |
4700 | mario79 | 161 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 162 | fs_CdRead: |
163 | push edi |
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164 | cmp byte [esi], 0 |
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165 | jnz @f |
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4700 | mario79 | 166 | ;-------------------------------------- |
2288 | clevermous | 167 | .noaccess: |
168 | pop edi |
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4700 | mario79 | 169 | ;-------------------------------------- |
2288 | clevermous | 170 | .noaccess_2: |
171 | or ebx, -1 |
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172 | mov eax, ERROR_ACCESS_DENIED |
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173 | ret |
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4700 | mario79 | 174 | ;-------------------------------------- |
2288 | clevermous | 175 | .noaccess_3: |
176 | pop eax edx ecx edi |
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177 | jmp .noaccess_2 |
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4700 | mario79 | 178 | ;-------------------------------------- |
2288 | clevermous | 179 | @@: |
180 | call cd_find_lfn |
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181 | jnc .found |
||
4700 | mario79 | 182 | |
2288 | clevermous | 183 | pop edi |
184 | cmp [DevErrorCode], 0 |
||
185 | jne .noaccess_2 |
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4700 | mario79 | 186 | |
2288 | clevermous | 187 | or ebx, -1 |
188 | mov eax, ERROR_FILE_NOT_FOUND |
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189 | ret |
||
4700 | mario79 | 190 | ;-------------------------------------- |
2288 | clevermous | 191 | .found: |
192 | mov edi, [cd_current_pointer_of_input] |
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193 | test byte [edi+25], 10b; do not allow read directories |
||
194 | jnz .noaccess |
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4700 | mario79 | 195 | |
2288 | clevermous | 196 | test ebx, ebx |
197 | jz .l1 |
||
4700 | mario79 | 198 | |
2288 | clevermous | 199 | cmp dword [ebx+4], 0 |
200 | jz @f |
||
4700 | mario79 | 201 | |
2288 | clevermous | 202 | xor ebx, ebx |
4700 | mario79 | 203 | ;-------------------------------------- |
2288 | clevermous | 204 | .reteof: |
205 | mov eax, 6; end of file |
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206 | pop edi |
||
207 | ret |
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4700 | mario79 | 208 | ;-------------------------------------- |
2288 | clevermous | 209 | @@: |
210 | mov ebx, [ebx] |
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4700 | mario79 | 211 | ;-------------------------------------- |
2288 | clevermous | 212 | .l1: |
213 | push ecx edx |
||
214 | push 0 |
||
4700 | mario79 | 215 | mov eax, [edi+10] ; real size of the file section |
2288 | clevermous | 216 | sub eax, ebx |
217 | jb .eof |
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4700 | mario79 | 218 | |
2288 | clevermous | 219 | cmp eax, ecx |
220 | jae @f |
||
4700 | mario79 | 221 | |
2288 | clevermous | 222 | mov ecx, eax |
223 | mov byte [esp], 6 |
||
4700 | mario79 | 224 | ;-------------------------------------- |
2288 | clevermous | 225 | @@: |
226 | mov eax, [edi+2] |
||
227 | mov [CDSectorAddress], eax |
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4700 | mario79 | 228 | ;-------------------------------------- |
2288 | clevermous | 229 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
230 | .new_sector: |
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231 | test ecx, ecx |
||
232 | jz .done |
||
4700 | mario79 | 233 | |
2288 | clevermous | 234 | sub ebx, 2048 |
235 | jae .next |
||
4700 | mario79 | 236 | |
2288 | clevermous | 237 | add ebx, 2048 |
238 | jnz .incomplete_sector |
||
4700 | mario79 | 239 | |
2288 | clevermous | 240 | cmp ecx, 2048 |
241 | jb .incomplete_sector |
||
242 | ; we may read and memmove complete sector |
||
243 | mov [CDDataBuf_pointer], edx |
||
4700 | mario79 | 244 | call ReadCDWRetr ; read sector of file |
2288 | clevermous | 245 | cmp [DevErrorCode], 0 |
246 | jne .noaccess_3 |
||
4700 | mario79 | 247 | |
2288 | clevermous | 248 | add edx, 2048 |
249 | sub ecx, 2048 |
||
4700 | mario79 | 250 | ;-------------------------------------- |
2288 | clevermous | 251 | .next: |
252 | inc dword [CDSectorAddress] |
||
253 | jmp .new_sector |
||
4700 | mario79 | 254 | ;-------------------------------------- |
2288 | clevermous | 255 | .incomplete_sector: |
256 | ; we must read and memmove incomplete sector |
||
257 | mov [CDDataBuf_pointer], CDDataBuf |
||
4700 | mario79 | 258 | call ReadCDWRetr ; read sector of file |
2288 | clevermous | 259 | cmp [DevErrorCode], 0 |
260 | jne .noaccess_3 |
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4700 | mario79 | 261 | |
2288 | clevermous | 262 | push ecx |
263 | add ecx, ebx |
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264 | cmp ecx, 2048 |
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265 | jbe @f |
||
4700 | mario79 | 266 | |
2288 | clevermous | 267 | mov ecx, 2048 |
4700 | mario79 | 268 | ;-------------------------------------- |
2288 | clevermous | 269 | @@: |
270 | sub ecx, ebx |
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271 | push edi esi ecx |
||
272 | mov edi, edx |
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273 | lea esi, [CDDataBuf + ebx] |
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274 | cld |
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275 | rep movsb |
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276 | pop ecx esi edi |
||
277 | add edx, ecx |
||
278 | sub [esp], ecx |
||
279 | pop ecx |
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280 | xor ebx, ebx |
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281 | jmp .next |
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4700 | mario79 | 282 | ;-------------------------------------- |
2288 | clevermous | 283 | .done: |
284 | mov ebx, edx |
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285 | pop eax edx ecx edi |
||
286 | sub ebx, edx |
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287 | ret |
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4700 | mario79 | 288 | ;-------------------------------------- |
2288 | clevermous | 289 | .eof: |
290 | mov ebx, edx |
||
291 | pop eax edx ecx |
||
292 | sub ebx, edx |
||
293 | jmp .reteof |
||
6468 | pathoswith | 294 | |
4700 | mario79 | 295 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 296 | fs_CdReadFolder: |
297 | push edi |
||
298 | call cd_find_lfn |
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299 | jnc .found |
||
4700 | mario79 | 300 | |
2288 | clevermous | 301 | pop edi |
302 | cmp [DevErrorCode], 0 |
||
303 | jne .noaccess_1 |
||
4700 | mario79 | 304 | |
2288 | clevermous | 305 | or ebx, -1 |
306 | mov eax, ERROR_FILE_NOT_FOUND |
||
307 | ret |
||
4700 | mario79 | 308 | ;-------------------------------------- |
2288 | clevermous | 309 | .found: |
310 | mov edi, [cd_current_pointer_of_input] |
||
311 | test byte [edi+25], 10b ; do not allow read directories |
||
312 | jnz .found_dir |
||
4700 | mario79 | 313 | |
2288 | clevermous | 314 | pop edi |
4700 | mario79 | 315 | ;-------------------------------------- |
2288 | clevermous | 316 | .noaccess_1: |
317 | or ebx, -1 |
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318 | mov eax, ERROR_ACCESS_DENIED |
||
319 | ret |
||
4700 | mario79 | 320 | ;-------------------------------------- |
2288 | clevermous | 321 | .found_dir: |
322 | mov eax, [edi+2] ; eax=cluster |
||
323 | mov [CDSectorAddress], eax |
||
4700 | mario79 | 324 | mov eax, [edi+10] ; directory size |
325 | ;-------------------------------------- |
||
2288 | clevermous | 326 | .doit: |
327 | ; init header |
||
328 | push eax ecx |
||
329 | mov edi, edx |
||
330 | mov ecx, 32/4 |
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331 | xor eax, eax |
||
332 | rep stosd |
||
333 | pop ecx eax |
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334 | mov byte [edx], 1 ; version |
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335 | mov [cd_mem_location], edx |
||
336 | add [cd_mem_location], 32 |
||
337 | ;.mainloop: |
||
338 | mov [cd_counter_block], dword 0 |
||
339 | dec dword [CDSectorAddress] |
||
340 | push ecx |
||
4700 | mario79 | 341 | ;-------------------------------------- |
2288 | clevermous | 342 | .read_to_buffer: |
343 | inc dword [CDSectorAddress] |
||
344 | mov [CDDataBuf_pointer], CDDataBuf |
||
4700 | mario79 | 345 | call ReadCDWRetr ; read sector of directory |
2288 | clevermous | 346 | cmp [DevErrorCode], 0 |
347 | jne .noaccess_1 |
||
4700 | mario79 | 348 | |
2288 | clevermous | 349 | call .get_names_from_buffer |
350 | sub eax, 2048 |
||
4700 | mario79 | 351 | ; directory is over? |
2288 | clevermous | 352 | ja .read_to_buffer |
4700 | mario79 | 353 | |
2288 | clevermous | 354 | mov edi, [cd_counter_block] |
355 | mov [edx+8], edi |
||
356 | mov edi, [ebx] |
||
357 | sub [edx+4], edi |
||
358 | xor eax, eax |
||
359 | dec ecx |
||
360 | js @f |
||
4700 | mario79 | 361 | |
2288 | clevermous | 362 | mov al, ERROR_END_OF_FILE |
4700 | mario79 | 363 | ;-------------------------------------- |
2288 | clevermous | 364 | @@: |
365 | pop ecx edi |
||
366 | mov ebx, [edx+4] |
||
367 | ret |
||
4700 | mario79 | 368 | ;-------------------------------------- |
2288 | clevermous | 369 | .get_names_from_buffer: |
370 | mov [cd_current_pointer_of_input_2], CDDataBuf |
||
371 | push eax esi edi edx |
||
4700 | mario79 | 372 | ;-------------------------------------- |
2288 | clevermous | 373 | .get_names_from_buffer_1: |
374 | call cd_get_name |
||
375 | jc .end_buffer |
||
4700 | mario79 | 376 | |
2288 | clevermous | 377 | inc dword [cd_counter_block] |
378 | mov eax, [cd_counter_block] |
||
379 | cmp [ebx], eax |
||
380 | jae .get_names_from_buffer_1 |
||
4700 | mario79 | 381 | |
2288 | clevermous | 382 | test ecx, ecx |
383 | jz .get_names_from_buffer_1 |
||
4700 | mario79 | 384 | |
2288 | clevermous | 385 | mov edi, [cd_counter_block] |
386 | mov [edx+4], edi |
||
387 | dec ecx |
||
388 | mov esi, ebp |
||
389 | mov edi, [cd_mem_location] |
||
390 | add edi, 40 |
||
391 | test dword [ebx+4], 1; 0=ANSI, 1=UNICODE |
||
392 | jnz .unicode |
||
4700 | mario79 | 393 | ;-------------------------------------- |
2288 | clevermous | 394 | .ansi: |
395 | cmp [cd_counter_block], 2 |
||
396 | jbe .ansi_parent_directory |
||
4700 | mario79 | 397 | |
2288 | clevermous | 398 | cld |
399 | lodsw |
||
400 | xchg ah, al |
||
401 | call uni2ansi_char |
||
402 | cld |
||
403 | stosb |
||
4700 | mario79 | 404 | ; check end of file |
2288 | clevermous | 405 | mov ax, [esi] |
4700 | mario79 | 406 | cmp ax, word 3B00h ; separator end of file ';' |
2288 | clevermous | 407 | je .cd_get_parameters_of_file_1 |
4700 | mario79 | 408 | ; check for files not ending with separator |
2288 | clevermous | 409 | movzx eax, byte [ebp-33] |
410 | add eax, ebp |
||
411 | sub eax, 34 |
||
412 | cmp esi, eax |
||
413 | je .cd_get_parameters_of_file_1 |
||
4700 | mario79 | 414 | ; check the end of the directory |
2288 | clevermous | 415 | movzx eax, byte [ebp-1] |
416 | add eax, ebp |
||
417 | cmp esi, eax |
||
418 | jb .ansi |
||
4700 | mario79 | 419 | ;-------------------------------------- |
2288 | clevermous | 420 | .cd_get_parameters_of_file_1: |
421 | mov [edi], byte 0 |
||
422 | call cd_get_parameters_of_file |
||
423 | add [cd_mem_location], 304 |
||
424 | jmp .get_names_from_buffer_1 |
||
4700 | mario79 | 425 | ;-------------------------------------- |
2288 | clevermous | 426 | .ansi_parent_directory: |
427 | cmp [cd_counter_block], 2 |
||
428 | je @f |
||
4700 | mario79 | 429 | |
2288 | clevermous | 430 | mov [edi], byte '.' |
431 | inc edi |
||
432 | jmp .cd_get_parameters_of_file_1 |
||
4700 | mario79 | 433 | ;-------------------------------------- |
2288 | clevermous | 434 | @@: |
435 | mov [edi], word '..' |
||
436 | add edi, 2 |
||
437 | jmp .cd_get_parameters_of_file_1 |
||
4700 | mario79 | 438 | ;-------------------------------------- |
2288 | clevermous | 439 | .unicode: |
440 | cmp [cd_counter_block], 2 |
||
441 | jbe .unicode_parent_directory |
||
4700 | mario79 | 442 | |
2288 | clevermous | 443 | cld |
444 | movsw |
||
4700 | mario79 | 445 | ; check end of file |
2288 | clevermous | 446 | mov ax, [esi] |
4700 | mario79 | 447 | cmp ax, word 3B00h; separator end of file ';' |
2288 | clevermous | 448 | je .cd_get_parameters_of_file_2 |
4700 | mario79 | 449 | ; check for files not ending with separator |
2288 | clevermous | 450 | movzx eax, byte [ebp-33] |
451 | add eax, ebp |
||
452 | sub eax, 34 |
||
453 | cmp esi, eax |
||
454 | je .cd_get_parameters_of_file_2 |
||
4700 | mario79 | 455 | ; check the end of the directory |
2288 | clevermous | 456 | movzx eax, byte [ebp-1] |
457 | add eax, ebp |
||
458 | cmp esi, eax |
||
459 | jb .unicode |
||
4700 | mario79 | 460 | ;-------------------------------------- |
2288 | clevermous | 461 | .cd_get_parameters_of_file_2: |
462 | mov [edi], word 0 |
||
463 | call cd_get_parameters_of_file |
||
464 | add [cd_mem_location], 560 |
||
465 | jmp .get_names_from_buffer_1 |
||
4700 | mario79 | 466 | ;-------------------------------------- |
2288 | clevermous | 467 | .unicode_parent_directory: |
468 | cmp [cd_counter_block], 2 |
||
469 | je @f |
||
4700 | mario79 | 470 | |
2288 | clevermous | 471 | mov [edi], word 2E00h; '.' |
472 | add edi, 2 |
||
473 | jmp .cd_get_parameters_of_file_2 |
||
4700 | mario79 | 474 | ;-------------------------------------- |
2288 | clevermous | 475 | @@: |
476 | mov [edi], dword 2E002E00h; '..' |
||
477 | add edi, 4 |
||
478 | jmp .cd_get_parameters_of_file_2 |
||
4700 | mario79 | 479 | ;-------------------------------------- |
2288 | clevermous | 480 | .end_buffer: |
481 | pop edx edi esi eax |
||
482 | ret |
||
4700 | mario79 | 483 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 484 | cd_get_parameters_of_file: |
485 | mov edi, [cd_mem_location] |
||
486 | cd_get_parameters_of_file_1: |
||
4700 | mario79 | 487 | ; get file attributes |
2288 | clevermous | 488 | xor eax, eax |
4700 | mario79 | 489 | ; file is not archived |
2288 | clevermous | 490 | inc eax |
491 | shl eax, 1 |
||
4700 | mario79 | 492 | ; is a directory? |
2288 | clevermous | 493 | test [ebp-8], byte 2 |
494 | jz .file |
||
4700 | mario79 | 495 | |
2288 | clevermous | 496 | inc eax |
4700 | mario79 | 497 | ;-------------------------------------- |
2288 | clevermous | 498 | .file: |
4700 | mario79 | 499 | ; not as a volume label in the FAT, in this form not available |
500 | ; file is not a system |
||
2288 | clevermous | 501 | shl eax, 3 |
4700 | mario79 | 502 | ; file is hidden? (attribute of existence) |
2288 | clevermous | 503 | test [ebp-8], byte 1 |
504 | jz .hidden |
||
4700 | mario79 | 505 | |
2288 | clevermous | 506 | inc eax |
4700 | mario79 | 507 | ;-------------------------------------- |
2288 | clevermous | 508 | .hidden: |
509 | shl eax, 1 |
||
4700 | mario79 | 510 | ; file is always read-only, as this CD |
2288 | clevermous | 511 | inc eax |
512 | mov [edi], eax |
||
4700 | mario79 | 513 | ; get the time to file |
514 | ; hour |
||
2288 | clevermous | 515 | movzx eax, byte [ebp-12] |
516 | shl eax, 8 |
||
4700 | mario79 | 517 | ; minute |
2288 | clevermous | 518 | mov al, [ebp-11] |
519 | shl eax, 8 |
||
4700 | mario79 | 520 | ; second |
2288 | clevermous | 521 | mov al, [ebp-10] |
4700 | mario79 | 522 | ; file creation time |
2288 | clevermous | 523 | mov [edi+8], eax |
4700 | mario79 | 524 | ; last access time |
2288 | clevermous | 525 | mov [edi+16], eax |
4700 | mario79 | 526 | ; last write time |
2288 | clevermous | 527 | mov [edi+24], eax |
4700 | mario79 | 528 | ; get date for file |
529 | ; year |
||
2288 | clevermous | 530 | movzx eax, byte [ebp-15] |
531 | add eax, 1900 |
||
532 | shl eax, 8 |
||
4700 | mario79 | 533 | ; month |
2288 | clevermous | 534 | mov al, [ebp-14] |
535 | shl eax, 8 |
||
4700 | mario79 | 536 | ; day |
2288 | clevermous | 537 | mov al, [ebp-13] |
4700 | mario79 | 538 | ; file creation date |
2288 | clevermous | 539 | mov [edi+12], eax |
4700 | mario79 | 540 | ; last access date |
2288 | clevermous | 541 | mov [edi+20], eax |
6468 | pathoswith | 542 | ; last write date |
2288 | clevermous | 543 | mov [edi+28], eax |
4700 | mario79 | 544 | ; get the data type of name |
2288 | clevermous | 545 | xor eax, eax |
546 | test dword [ebx+4], 1; 0=ANSI, 1=UNICODE |
||
547 | jnz .unicode_1 |
||
4700 | mario79 | 548 | |
2288 | clevermous | 549 | mov [edi+4], eax |
550 | jmp @f |
||
4700 | mario79 | 551 | ;-------------------------------------- |
2288 | clevermous | 552 | .unicode_1: |
553 | inc eax |
||
554 | mov [edi+4], eax |
||
4700 | mario79 | 555 | ;-------------------------------------- |
2288 | clevermous | 556 | @@: |
4700 | mario79 | 557 | ; get the file size in bytes |
2288 | clevermous | 558 | xor eax, eax |
559 | mov [edi+32+4], eax |
||
560 | mov eax, [ebp-23] |
||
561 | mov [edi+32], eax |
||
562 | ret |
||
6468 | pathoswith | 563 | |
4700 | mario79 | 564 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 565 | fs_CdGetFileInfo: |
566 | cmp byte [esi], 0 |
||
567 | jnz @f |
||
4700 | mario79 | 568 | |
2288 | clevermous | 569 | mov eax, 2 |
570 | ret |
||
4700 | mario79 | 571 | ;-------------------------------------- |
2288 | clevermous | 572 | @@: |
573 | push edi |
||
574 | call cd_find_lfn |
||
575 | pushfd |
||
576 | cmp [DevErrorCode], 0 |
||
577 | jz @f |
||
4700 | mario79 | 578 | |
2288 | clevermous | 579 | popfd |
580 | pop edi |
||
581 | mov eax, 11 |
||
582 | ret |
||
4700 | mario79 | 583 | ;-------------------------------------- |
2288 | clevermous | 584 | @@: |
585 | popfd |
||
586 | jnc @f |
||
4700 | mario79 | 587 | |
2288 | clevermous | 588 | pop edi |
589 | mov eax, ERROR_FILE_NOT_FOUND |
||
590 | ret |
||
4700 | mario79 | 591 | ;-------------------------------------- |
2288 | clevermous | 592 | @@: |
593 | |||
594 | mov edi, edx |
||
595 | push ebp |
||
596 | mov ebp, [cd_current_pointer_of_input] |
||
597 | add ebp, 33 |
||
598 | call cd_get_parameters_of_file_1 |
||
599 | pop ebp |
||
600 | and dword [edi+4], 0 |
||
601 | pop edi |
||
602 | xor eax, eax |
||
603 | ret |
||
4700 | mario79 | 604 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 605 | cd_find_lfn: |
606 | mov [cd_appl_data], 0 |
||
6468 | pathoswith | 607 | ; in: esi -> path string |
2288 | clevermous | 608 | ; out: CF=1 - file not found |
609 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
||
610 | push eax esi |
||
4700 | mario79 | 611 | ; Sector 16 - start set of volume descriptors |
2288 | clevermous | 612 | call WaitUnitReady |
613 | cmp [DevErrorCode], 0 |
||
614 | jne .access_denied |
||
615 | |||
616 | call prevent_medium_removal |
||
4700 | mario79 | 617 | ; testing of reading |
2288 | clevermous | 618 | mov [CDSectorAddress], dword 16 |
619 | mov [CDDataBuf_pointer], CDDataBuf |
||
620 | call ReadCDWRetr;_1 |
||
621 | cmp [DevErrorCode], 0 |
||
622 | jne .access_denied |
||
623 | |||
4700 | mario79 | 624 | ; calculation of the last session |
2288 | clevermous | 625 | call WaitUnitReady |
626 | cmp [DevErrorCode], 0 |
||
627 | jne .access_denied |
||
4700 | mario79 | 628 | |
2288 | clevermous | 629 | call Read_TOC |
630 | mov ah, [CDDataBuf+4+4] |
||
631 | mov al, [CDDataBuf+4+5] |
||
632 | shl eax, 16 |
||
633 | mov ah, [CDDataBuf+4+6] |
||
634 | mov al, [CDDataBuf+4+7] |
||
635 | add eax, 15 |
||
636 | mov [CDSectorAddress], eax |
||
637 | ; mov [CDSectorAddress],dword 15 |
||
638 | mov [CDDataBuf_pointer], CDDataBuf |
||
4700 | mario79 | 639 | ;-------------------------------------- |
2288 | clevermous | 640 | .start: |
641 | inc dword [CDSectorAddress] |
||
642 | call ReadCDWRetr;_1 |
||
643 | cmp [DevErrorCode], 0 |
||
644 | jne .access_denied |
||
645 | |||
646 | .start_check: |
||
4700 | mario79 | 647 | ; checking for "lice" |
2288 | clevermous | 648 | cmp [CDDataBuf+1], dword 'CD00' |
649 | jne .access_denied |
||
4700 | mario79 | 650 | |
2288 | clevermous | 651 | cmp [CDDataBuf+5], byte '1' |
652 | jne .access_denied |
||
4700 | mario79 | 653 | ; sector is the terminator of set of descriptors volumes? |
2288 | clevermous | 654 | cmp [CDDataBuf], byte 0xff |
655 | je .access_denied |
||
4700 | mario79 | 656 | ; sector is an additional and improved descriptor of volume? |
2288 | clevermous | 657 | cmp [CDDataBuf], byte 0x2 |
658 | jne .start |
||
4700 | mario79 | 659 | ; sector is an additional descriptor of volume? |
2288 | clevermous | 660 | cmp [CDDataBuf+6], byte 0x1 |
661 | jne .start |
||
662 | |||
4700 | mario79 | 663 | ; parameters of root directory |
664 | mov eax, [CDDataBuf+0x9c+2]; start of root directory |
||
2288 | clevermous | 665 | mov [CDSectorAddress], eax |
4700 | mario79 | 666 | mov eax, [CDDataBuf+0x9c+10]; size of root directory |
2288 | clevermous | 667 | cmp byte [esi], 0 |
668 | jnz @f |
||
4700 | mario79 | 669 | |
2288 | clevermous | 670 | mov [cd_current_pointer_of_input], CDDataBuf+0x9c |
671 | jmp .done |
||
4700 | mario79 | 672 | ;-------------------------------------- |
2288 | clevermous | 673 | @@: |
4700 | mario79 | 674 | ; start the search |
2288 | clevermous | 675 | .mainloop: |
676 | dec dword [CDSectorAddress] |
||
4700 | mario79 | 677 | ;-------------------------------------- |
2288 | clevermous | 678 | .read_to_buffer: |
679 | inc dword [CDSectorAddress] |
||
680 | mov [CDDataBuf_pointer], CDDataBuf |
||
4700 | mario79 | 681 | call ReadCDWRetr ; read sector of directory |
2288 | clevermous | 682 | cmp [DevErrorCode], 0 |
683 | jne .access_denied |
||
684 | call cd_find_name_in_buffer |
||
685 | jnc .found |
||
686 | sub eax, 2048 |
||
4700 | mario79 | 687 | ; directory is over? |
2288 | clevermous | 688 | cmp eax, 0 |
689 | ja .read_to_buffer |
||
4700 | mario79 | 690 | ; desired element of chain is not found |
2288 | clevermous | 691 | .access_denied: |
692 | pop esi eax |
||
693 | mov [cd_appl_data], 1 |
||
694 | stc |
||
695 | ret |
||
4700 | mario79 | 696 | ;-------------------------------------- |
697 | ; desired element of chain found |
||
698 | .found: |
||
699 | ; the end of the file path |
||
2288 | clevermous | 700 | cmp byte [esi-1], 0 |
701 | jz .done |
||
702 | mov eax, [cd_current_pointer_of_input] |
||
703 | push dword [eax+2] |
||
4700 | mario79 | 704 | pop dword [CDSectorAddress] ; beginning of the directory |
705 | mov eax, [eax+2+8] ; size of directory |
||
2288 | clevermous | 706 | jmp .mainloop |
4700 | mario79 | 707 | ;-------------------------------------- |
708 | ; file pointer found |
||
709 | .done: |
||
2288 | clevermous | 710 | pop esi eax |
711 | mov [cd_appl_data], 1 |
||
712 | clc |
||
713 | ret |
||
4700 | mario79 | 714 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 715 | cd_find_name_in_buffer: |
716 | mov [cd_current_pointer_of_input_2], CDDataBuf |
||
4700 | mario79 | 717 | ;-------------------------------------- |
2288 | clevermous | 718 | .start: |
719 | call cd_get_name |
||
720 | jc .not_found |
||
4700 | mario79 | 721 | |
2288 | clevermous | 722 | call cd_compare_name |
723 | jc .start |
||
4700 | mario79 | 724 | ;-------------------------------------- |
2288 | clevermous | 725 | .found: |
726 | clc |
||
727 | ret |
||
4700 | mario79 | 728 | ;-------------------------------------- |
2288 | clevermous | 729 | .not_found: |
730 | stc |
||
731 | ret |
||
4700 | mario79 | 732 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 733 | cd_get_name: |
734 | push eax |
||
735 | mov ebp, [cd_current_pointer_of_input_2] |
||
736 | mov [cd_current_pointer_of_input], ebp |
||
737 | mov eax, [ebp] |
||
4700 | mario79 | 738 | test eax, eax ; entry's is over? |
2288 | clevermous | 739 | jz .next_sector |
4700 | mario79 | 740 | |
741 | cmp ebp, CDDataBuf+2048 ; buffer is over? |
||
2288 | clevermous | 742 | jae .next_sector |
4700 | mario79 | 743 | |
2288 | clevermous | 744 | movzx eax, byte [ebp] |
4700 | mario79 | 745 | add [cd_current_pointer_of_input_2], eax ; next entry of directory |
746 | add ebp, 33; pointer is set to the beginning of the name |
||
2288 | clevermous | 747 | pop eax |
748 | clc |
||
749 | ret |
||
4700 | mario79 | 750 | ;-------------------------------------- |
2288 | clevermous | 751 | .next_sector: |
752 | pop eax |
||
753 | stc |
||
754 | ret |
||
4700 | mario79 | 755 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 756 | cd_compare_name: |
757 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
||
758 | ; in: esi->name, ebp->name |
||
759 | ; out: if names match: ZF=1 and esi->next component of name |
||
760 | ; else: ZF=0, esi is not changed |
||
761 | ; destroys eax |
||
762 | push esi eax edi |
||
763 | mov edi, ebp |
||
4700 | mario79 | 764 | ;-------------------------------------- |
2288 | clevermous | 765 | .loop: |
766 | cld |
||
767 | lodsb |
||
768 | push eax |
||
769 | call char_todown |
||
770 | call ansi2uni_char |
||
771 | xchg ah, al |
||
772 | scasw |
||
773 | pop eax |
||
774 | je .coincides |
||
775 | call char_toupper |
||
776 | call ansi2uni_char |
||
777 | xchg ah, al |
||
778 | sub edi, 2 |
||
779 | scasw |
||
780 | jne .name_not_coincide |
||
4700 | mario79 | 781 | ;-------------------------------------- |
2288 | clevermous | 782 | .coincides: |
4700 | mario79 | 783 | cmp [esi], byte '/' ; path separator is end of current element |
2288 | clevermous | 784 | je .done |
4700 | mario79 | 785 | |
786 | cmp [esi], byte 0 ; path separator end of name |
||
2288 | clevermous | 787 | je .done |
4700 | mario79 | 788 | |
2288 | clevermous | 789 | jmp .loop |
4700 | mario79 | 790 | ;-------------------------------------- |
2288 | clevermous | 791 | .name_not_coincide: |
792 | pop edi eax esi |
||
793 | stc |
||
794 | ret |
||
4700 | mario79 | 795 | ;-------------------------------------- |
2288 | clevermous | 796 | .done: |
4700 | mario79 | 797 | ; check end of file |
798 | cmp [edi], word 3B00h; separator end of file ';' |
||
2288 | clevermous | 799 | je .done_1 |
4700 | mario79 | 800 | ; check for files not ending with separator |
2288 | clevermous | 801 | movzx eax, byte [ebp-33] |
802 | add eax, ebp |
||
803 | sub eax, 34 |
||
804 | cmp edi, eax |
||
805 | je .done_1 |
||
4700 | mario79 | 806 | ; check the end of directory |
2288 | clevermous | 807 | movzx eax, byte [ebp-1] |
808 | add eax, ebp |
||
809 | cmp edi, eax |
||
810 | jne .name_not_coincide |
||
4700 | mario79 | 811 | ;-------------------------------------- |
2288 | clevermous | 812 | .done_1: |
813 | pop edi eax |
||
814 | add esp, 4 |
||
815 | inc esi |
||
816 | clc |
||
817 | ret |