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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: 6798 $ |
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9 | |||
6468 | pathoswith | 10 | ; CD external functions |
11 | ; in: |
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6471 | pathoswith | 12 | ; esi -> path string in UTF-8 |
6468 | pathoswith | 13 | ; ebx -> offset in file (qword) |
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 |
||
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 |
||
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 | ;-------------------------------------- |
||
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 |
||
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 |
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146 | ;-------------------------------------- |
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147 | .2: |
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148 | cmp [ChannelNumber], 1 |
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149 | jne @f |
||
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 |
||
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 |
||
177 | jmp .noaccess_2 |
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4700 | mario79 | 178 | ;-------------------------------------- |
2288 | clevermous | 179 | @@: |
180 | call cd_find_lfn |
||
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 |
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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 |
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194 | jnz .noaccess |
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4700 | mario79 | 195 | |
2288 | clevermous | 196 | test ebx, ebx |
197 | jz .l1 |
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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 |
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214 | push 0 |
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4700 | mario79 | 215 | mov eax, [edi+10] ; real size of the file section |
2288 | clevermous | 216 | sub eax, ebx |
217 | jb .eof |
||
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: |
||
231 | test ecx, ecx |
||
232 | jz .done |
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4700 | mario79 | 233 | |
2288 | clevermous | 234 | sub ebx, 2048 |
235 | jae .next |
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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 |
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4700 | mario79 | 244 | call ReadCDWRetr ; read sector of file |
2288 | clevermous | 245 | cmp [DevErrorCode], 0 |
246 | jne .noaccess_3 |
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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 |
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4700 | mario79 | 254 | ;-------------------------------------- |
2288 | clevermous | 255 | .incomplete_sector: |
256 | ; we must read and memmove incomplete sector |
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257 | mov [CDDataBuf_pointer], CDDataBuf |
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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 |
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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 |
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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 |
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277 | add edx, ecx |
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278 | sub [esp], ecx |
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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 |
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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 |
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291 | pop eax edx ecx |
||
292 | sub ebx, edx |
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293 | jmp .reteof |
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6468 | pathoswith | 294 | |
4700 | mario79 | 295 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 296 | fs_CdReadFolder: |
297 | push edi |
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298 | call cd_find_lfn |
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299 | jnc .found |
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300 | pop edi |
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301 | cmp [DevErrorCode], 0 |
||
302 | jne .noaccess_1 |
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303 | or ebx, -1 |
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304 | mov eax, ERROR_FILE_NOT_FOUND |
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305 | ret |
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6798 | pathoswith | 306 | |
2288 | clevermous | 307 | .found: |
308 | mov edi, [cd_current_pointer_of_input] |
||
309 | test byte [edi+25], 10b ; do not allow read directories |
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310 | jnz .found_dir |
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311 | pop edi |
||
312 | .noaccess_1: |
||
313 | or ebx, -1 |
||
314 | mov eax, ERROR_ACCESS_DENIED |
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315 | ret |
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6798 | pathoswith | 316 | |
317 | .end_buffer: |
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318 | pop edx eax |
||
319 | sub eax, 2048 ; directory is over? |
||
320 | ja .read_to_buffer |
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321 | mov eax, [cd_counter_block] |
||
322 | mov [edx+8], eax |
||
323 | mov eax, [ebx] |
||
324 | sub [edx+4], eax |
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325 | xor eax, eax |
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326 | dec ecx |
||
327 | js @f |
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328 | mov al, ERROR_END_OF_FILE |
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329 | @@: |
||
330 | pop ecx edi |
||
331 | mov ebx, [edx+4] |
||
332 | ret |
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333 | |||
2288 | clevermous | 334 | .found_dir: |
335 | mov eax, [edi+2] ; eax=cluster |
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336 | mov [CDSectorAddress], eax |
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4700 | mario79 | 337 | mov eax, [edi+10] ; directory size |
2288 | clevermous | 338 | push eax ecx |
339 | mov edi, edx |
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340 | mov ecx, 32/4 |
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341 | xor eax, eax |
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342 | rep stosd |
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343 | pop ecx eax |
||
344 | mov byte [edx], 1 ; version |
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345 | mov [cd_mem_location], edx |
||
346 | add [cd_mem_location], 32 |
||
347 | mov [cd_counter_block], dword 0 |
||
348 | dec dword [CDSectorAddress] |
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349 | push ecx |
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350 | .read_to_buffer: |
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351 | inc dword [CDSectorAddress] |
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352 | mov [CDDataBuf_pointer], CDDataBuf |
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6798 | pathoswith | 353 | call ReadCDWRetr ; read sector of directory |
2288 | clevermous | 354 | cmp [DevErrorCode], 0 |
355 | jne .noaccess_1 |
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6798 | pathoswith | 356 | mov [cd_current_pointer_of_input_2], CDDataBuf |
357 | push eax edx |
||
2288 | clevermous | 358 | .get_names_from_buffer: |
359 | call cd_get_name |
||
360 | jc .end_buffer |
||
361 | inc dword [cd_counter_block] |
||
362 | mov eax, [cd_counter_block] |
||
363 | cmp [ebx], eax |
||
6798 | pathoswith | 364 | jae .get_names_from_buffer |
2288 | clevermous | 365 | test ecx, ecx |
6798 | pathoswith | 366 | jz .get_names_from_buffer |
2288 | clevermous | 367 | mov edi, [cd_counter_block] |
368 | mov [edx+4], edi |
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369 | dec ecx |
||
370 | mov esi, ebp |
||
6798 | pathoswith | 371 | call cd_get_parameters_of_file |
2288 | clevermous | 372 | add edi, 40 |
6798 | pathoswith | 373 | mov ax, '.' |
374 | cmp dword[ebx+4], 2 |
||
375 | jz .utf16 |
||
376 | cmp dword[ebx+4], 3 |
||
377 | jz .utf8 |
||
2288 | clevermous | 378 | cmp [cd_counter_block], 2 |
6798 | pathoswith | 379 | jbe .parentDirectory |
380 | @@: |
||
2288 | clevermous | 381 | lodsw |
382 | xchg ah, al |
||
383 | call uni2ansi_char |
||
384 | stosb |
||
6798 | pathoswith | 385 | call .checkForEnd |
386 | jc @b |
||
387 | @@: |
||
2288 | clevermous | 388 | mov [edi], byte 0 |
389 | add [cd_mem_location], 304 |
||
6798 | pathoswith | 390 | jmp .get_names_from_buffer |
391 | |||
392 | .parentDirectory: |
||
393 | stosb |
||
2288 | clevermous | 394 | cmp [cd_counter_block], 2 |
6798 | pathoswith | 395 | jnz @b |
396 | stosb |
||
397 | jmp @b |
||
4700 | mario79 | 398 | |
6798 | pathoswith | 399 | .utf8: |
400 | add [cd_mem_location], 256 |
||
401 | cmp [cd_counter_block], 2 |
||
402 | jbe .parentDirectory |
||
403 | push ecx |
||
404 | mov ecx, 519 |
||
2288 | clevermous | 405 | @@: |
6798 | pathoswith | 406 | lodsw |
407 | xchg ah, al |
||
408 | call UTF16to8 |
||
409 | js @f |
||
410 | call .checkForEnd |
||
411 | jc @b |
||
412 | @@: |
||
413 | pop ecx |
||
414 | mov [edi], byte 0 |
||
415 | add [cd_mem_location], 304 |
||
416 | jmp .get_names_from_buffer |
||
4700 | mario79 | 417 | |
6798 | pathoswith | 418 | .checkForEnd: |
2288 | clevermous | 419 | mov ax, [esi] |
6798 | pathoswith | 420 | cmp ax, 3B00h ; ';' |
421 | jz @f |
||
4700 | mario79 | 422 | ; check for files not ending with separator |
2288 | clevermous | 423 | movzx eax, byte [ebp-33] |
424 | add eax, ebp |
||
425 | sub eax, 34 |
||
426 | cmp esi, eax |
||
6798 | pathoswith | 427 | jz @f |
4700 | mario79 | 428 | ; check the end of the directory |
2288 | clevermous | 429 | movzx eax, byte [ebp-1] |
430 | add eax, ebp |
||
431 | cmp esi, eax |
||
6798 | pathoswith | 432 | @@: |
433 | ret |
||
434 | |||
435 | .utf16: |
||
436 | cmp [cd_counter_block], 2 |
||
437 | jbe .utf16ParentDirectory |
||
438 | @@: |
||
439 | lodsw |
||
440 | xchg ah, al |
||
441 | stosw |
||
442 | call .checkForEnd |
||
443 | jc @b |
||
444 | @@: |
||
2288 | clevermous | 445 | mov [edi], word 0 |
446 | add [cd_mem_location], 560 |
||
6798 | pathoswith | 447 | jmp .get_names_from_buffer |
448 | |||
449 | .utf16ParentDirectory: |
||
450 | stosw |
||
2288 | clevermous | 451 | cmp [cd_counter_block], 2 |
6798 | pathoswith | 452 | jnz @b |
453 | stosw |
||
454 | jmp @b |
||
4700 | mario79 | 455 | |
2288 | clevermous | 456 | cd_get_parameters_of_file: |
457 | mov edi, [cd_mem_location] |
||
458 | cd_get_parameters_of_file_1: |
||
4700 | mario79 | 459 | ; get file attributes |
2288 | clevermous | 460 | xor eax, eax |
4700 | mario79 | 461 | ; file is not archived |
2288 | clevermous | 462 | inc eax |
463 | shl eax, 1 |
||
4700 | mario79 | 464 | ; is a directory? |
2288 | clevermous | 465 | test [ebp-8], byte 2 |
466 | jz .file |
||
467 | inc eax |
||
468 | .file: |
||
4700 | mario79 | 469 | ; not as a volume label in the FAT, in this form not available |
470 | ; file is not a system |
||
2288 | clevermous | 471 | shl eax, 3 |
4700 | mario79 | 472 | ; file is hidden? (attribute of existence) |
2288 | clevermous | 473 | test [ebp-8], byte 1 |
474 | jz .hidden |
||
475 | inc eax |
||
476 | .hidden: |
||
477 | shl eax, 1 |
||
4700 | mario79 | 478 | ; file is always read-only, as this CD |
2288 | clevermous | 479 | inc eax |
480 | mov [edi], eax |
||
6798 | pathoswith | 481 | mov eax, [ebx+4] |
482 | mov [edi+4], eax |
||
4700 | mario79 | 483 | ; get the time to file |
484 | ; hour |
||
2288 | clevermous | 485 | movzx eax, byte [ebp-12] |
486 | shl eax, 8 |
||
4700 | mario79 | 487 | ; minute |
2288 | clevermous | 488 | mov al, [ebp-11] |
489 | shl eax, 8 |
||
4700 | mario79 | 490 | ; second |
2288 | clevermous | 491 | mov al, [ebp-10] |
4700 | mario79 | 492 | ; file creation time |
2288 | clevermous | 493 | mov [edi+8], eax |
4700 | mario79 | 494 | ; last access time |
2288 | clevermous | 495 | mov [edi+16], eax |
4700 | mario79 | 496 | ; last write time |
2288 | clevermous | 497 | mov [edi+24], eax |
4700 | mario79 | 498 | ; get date for file |
499 | ; year |
||
2288 | clevermous | 500 | movzx eax, byte [ebp-15] |
501 | add eax, 1900 |
||
502 | shl eax, 8 |
||
4700 | mario79 | 503 | ; month |
2288 | clevermous | 504 | mov al, [ebp-14] |
505 | shl eax, 8 |
||
4700 | mario79 | 506 | ; day |
2288 | clevermous | 507 | mov al, [ebp-13] |
4700 | mario79 | 508 | ; file creation date |
2288 | clevermous | 509 | mov [edi+12], eax |
4700 | mario79 | 510 | ; last access date |
2288 | clevermous | 511 | mov [edi+20], eax |
6468 | pathoswith | 512 | ; last write date |
2288 | clevermous | 513 | mov [edi+28], eax |
4700 | mario79 | 514 | ; get the file size in bytes |
2288 | clevermous | 515 | xor eax, eax |
516 | mov [edi+32+4], eax |
||
517 | mov eax, [ebp-23] |
||
518 | mov [edi+32], eax |
||
519 | ret |
||
6468 | pathoswith | 520 | |
4700 | mario79 | 521 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 522 | fs_CdGetFileInfo: |
523 | cmp byte [esi], 0 |
||
524 | jnz @f |
||
4700 | mario79 | 525 | |
2288 | clevermous | 526 | mov eax, 2 |
527 | ret |
||
4700 | mario79 | 528 | ;-------------------------------------- |
2288 | clevermous | 529 | @@: |
530 | push edi |
||
531 | call cd_find_lfn |
||
532 | pushfd |
||
533 | cmp [DevErrorCode], 0 |
||
534 | jz @f |
||
4700 | mario79 | 535 | |
2288 | clevermous | 536 | popfd |
537 | pop edi |
||
538 | mov eax, 11 |
||
539 | ret |
||
4700 | mario79 | 540 | ;-------------------------------------- |
2288 | clevermous | 541 | @@: |
542 | popfd |
||
543 | jnc @f |
||
4700 | mario79 | 544 | |
2288 | clevermous | 545 | pop edi |
546 | mov eax, ERROR_FILE_NOT_FOUND |
||
547 | ret |
||
4700 | mario79 | 548 | ;-------------------------------------- |
2288 | clevermous | 549 | @@: |
550 | |||
551 | mov edi, edx |
||
552 | push ebp |
||
553 | mov ebp, [cd_current_pointer_of_input] |
||
554 | add ebp, 33 |
||
555 | call cd_get_parameters_of_file_1 |
||
556 | pop ebp |
||
557 | and dword [edi+4], 0 |
||
558 | pop edi |
||
559 | xor eax, eax |
||
560 | ret |
||
4700 | mario79 | 561 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 562 | cd_find_lfn: |
563 | mov [cd_appl_data], 0 |
||
6471 | pathoswith | 564 | ; in: esi -> path string in UTF-8 |
565 | ; out: [cd_current_pointer_of_input] -> direntry, CF=1 -> file not found |
||
2288 | clevermous | 566 | push eax esi |
4700 | mario79 | 567 | ; Sector 16 - start set of volume descriptors |
2288 | clevermous | 568 | call WaitUnitReady |
569 | cmp [DevErrorCode], 0 |
||
570 | jne .access_denied |
||
571 | |||
572 | call prevent_medium_removal |
||
4700 | mario79 | 573 | ; testing of reading |
2288 | clevermous | 574 | mov [CDSectorAddress], dword 16 |
575 | mov [CDDataBuf_pointer], CDDataBuf |
||
576 | call ReadCDWRetr;_1 |
||
577 | cmp [DevErrorCode], 0 |
||
578 | jne .access_denied |
||
579 | |||
4700 | mario79 | 580 | ; calculation of the last session |
2288 | clevermous | 581 | call WaitUnitReady |
582 | cmp [DevErrorCode], 0 |
||
583 | jne .access_denied |
||
4700 | mario79 | 584 | |
2288 | clevermous | 585 | call Read_TOC |
586 | mov ah, [CDDataBuf+4+4] |
||
587 | mov al, [CDDataBuf+4+5] |
||
588 | shl eax, 16 |
||
589 | mov ah, [CDDataBuf+4+6] |
||
590 | mov al, [CDDataBuf+4+7] |
||
591 | add eax, 15 |
||
592 | mov [CDSectorAddress], eax |
||
593 | ; mov [CDSectorAddress],dword 15 |
||
594 | mov [CDDataBuf_pointer], CDDataBuf |
||
4700 | mario79 | 595 | ;-------------------------------------- |
2288 | clevermous | 596 | .start: |
597 | inc dword [CDSectorAddress] |
||
598 | call ReadCDWRetr;_1 |
||
599 | cmp [DevErrorCode], 0 |
||
600 | jne .access_denied |
||
601 | |||
602 | .start_check: |
||
4700 | mario79 | 603 | ; checking for "lice" |
2288 | clevermous | 604 | cmp [CDDataBuf+1], dword 'CD00' |
605 | jne .access_denied |
||
4700 | mario79 | 606 | |
2288 | clevermous | 607 | cmp [CDDataBuf+5], byte '1' |
608 | jne .access_denied |
||
4700 | mario79 | 609 | ; sector is the terminator of set of descriptors volumes? |
2288 | clevermous | 610 | cmp [CDDataBuf], byte 0xff |
611 | je .access_denied |
||
4700 | mario79 | 612 | ; sector is an additional and improved descriptor of volume? |
2288 | clevermous | 613 | cmp [CDDataBuf], byte 0x2 |
614 | jne .start |
||
4700 | mario79 | 615 | ; sector is an additional descriptor of volume? |
2288 | clevermous | 616 | cmp [CDDataBuf+6], byte 0x1 |
617 | jne .start |
||
618 | |||
4700 | mario79 | 619 | ; parameters of root directory |
620 | mov eax, [CDDataBuf+0x9c+2]; start of root directory |
||
2288 | clevermous | 621 | mov [CDSectorAddress], eax |
4700 | mario79 | 622 | mov eax, [CDDataBuf+0x9c+10]; size of root directory |
2288 | clevermous | 623 | cmp byte [esi], 0 |
624 | jnz @f |
||
4700 | mario79 | 625 | |
2288 | clevermous | 626 | mov [cd_current_pointer_of_input], CDDataBuf+0x9c |
627 | jmp .done |
||
4700 | mario79 | 628 | ;-------------------------------------- |
2288 | clevermous | 629 | @@: |
4700 | mario79 | 630 | ; start the search |
2288 | clevermous | 631 | .mainloop: |
632 | dec dword [CDSectorAddress] |
||
4700 | mario79 | 633 | ;-------------------------------------- |
2288 | clevermous | 634 | .read_to_buffer: |
635 | inc dword [CDSectorAddress] |
||
636 | mov [CDDataBuf_pointer], CDDataBuf |
||
4700 | mario79 | 637 | call ReadCDWRetr ; read sector of directory |
2288 | clevermous | 638 | cmp [DevErrorCode], 0 |
639 | jne .access_denied |
||
640 | call cd_find_name_in_buffer |
||
641 | jnc .found |
||
642 | sub eax, 2048 |
||
4700 | mario79 | 643 | ; directory is over? |
2288 | clevermous | 644 | cmp eax, 0 |
645 | ja .read_to_buffer |
||
4700 | mario79 | 646 | ; desired element of chain is not found |
2288 | clevermous | 647 | .access_denied: |
648 | pop esi eax |
||
649 | mov [cd_appl_data], 1 |
||
650 | stc |
||
651 | ret |
||
4700 | mario79 | 652 | ;-------------------------------------- |
653 | ; desired element of chain found |
||
654 | .found: |
||
655 | ; the end of the file path |
||
2288 | clevermous | 656 | cmp byte [esi-1], 0 |
657 | jz .done |
||
658 | mov eax, [cd_current_pointer_of_input] |
||
659 | push dword [eax+2] |
||
4700 | mario79 | 660 | pop dword [CDSectorAddress] ; beginning of the directory |
661 | mov eax, [eax+2+8] ; size of directory |
||
2288 | clevermous | 662 | jmp .mainloop |
4700 | mario79 | 663 | ;-------------------------------------- |
664 | ; file pointer found |
||
665 | .done: |
||
2288 | clevermous | 666 | pop esi eax |
667 | mov [cd_appl_data], 1 |
||
668 | clc |
||
669 | ret |
||
4700 | mario79 | 670 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 671 | cd_find_name_in_buffer: |
672 | mov [cd_current_pointer_of_input_2], CDDataBuf |
||
4700 | mario79 | 673 | ;-------------------------------------- |
2288 | clevermous | 674 | .start: |
675 | call cd_get_name |
||
676 | jc .not_found |
||
4700 | mario79 | 677 | |
2288 | clevermous | 678 | call cd_compare_name |
679 | jc .start |
||
4700 | mario79 | 680 | ;-------------------------------------- |
2288 | clevermous | 681 | .found: |
682 | clc |
||
683 | ret |
||
4700 | mario79 | 684 | ;-------------------------------------- |
2288 | clevermous | 685 | .not_found: |
686 | stc |
||
687 | ret |
||
4700 | mario79 | 688 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 689 | cd_get_name: |
690 | push eax |
||
691 | mov ebp, [cd_current_pointer_of_input_2] |
||
692 | mov [cd_current_pointer_of_input], ebp |
||
693 | mov eax, [ebp] |
||
4700 | mario79 | 694 | test eax, eax ; entry's is over? |
2288 | clevermous | 695 | jz .next_sector |
4700 | mario79 | 696 | |
697 | cmp ebp, CDDataBuf+2048 ; buffer is over? |
||
2288 | clevermous | 698 | jae .next_sector |
4700 | mario79 | 699 | |
2288 | clevermous | 700 | movzx eax, byte [ebp] |
4700 | mario79 | 701 | add [cd_current_pointer_of_input_2], eax ; next entry of directory |
702 | add ebp, 33; pointer is set to the beginning of the name |
||
2288 | clevermous | 703 | pop eax |
704 | clc |
||
705 | ret |
||
4700 | mario79 | 706 | ;-------------------------------------- |
2288 | clevermous | 707 | .next_sector: |
708 | pop eax |
||
709 | stc |
||
710 | ret |
||
4700 | mario79 | 711 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 712 | cd_compare_name: |
6471 | pathoswith | 713 | ; in: esi -> UTF-8 name, ebp -> UTF-16BE name |
714 | ; out: CF=0 -> names match, esi -> next component of name |
||
715 | ; CF=1 -> esi is not changed |
||
716 | push edx edi eax esi |
||
2288 | clevermous | 717 | mov edi, ebp |
718 | .loop: |
||
6471 | pathoswith | 719 | call utf8to16 |
720 | call utf16toUpper |
||
721 | mov edx, eax |
||
722 | mov ax, [edi] |
||
723 | xchg al, ah |
||
724 | call utf16toUpper |
||
725 | cmp ax, dx |
||
2288 | clevermous | 726 | jne .name_not_coincide |
6471 | pathoswith | 727 | add edi, 2 |
4700 | mario79 | 728 | cmp [esi], byte '/' ; path separator is end of current element |
2288 | clevermous | 729 | je .done |
4700 | mario79 | 730 | cmp [esi], byte 0 ; path separator end of name |
6471 | pathoswith | 731 | jne .loop |
2288 | clevermous | 732 | .done: |
4700 | mario79 | 733 | ; check end of file |
734 | cmp [edi], word 3B00h; separator end of file ';' |
||
2288 | clevermous | 735 | je .done_1 |
4700 | mario79 | 736 | ; check for files not ending with separator |
2288 | clevermous | 737 | movzx eax, byte [ebp-33] |
738 | add eax, ebp |
||
739 | sub eax, 34 |
||
740 | cmp edi, eax |
||
741 | je .done_1 |
||
4700 | mario79 | 742 | ; check the end of directory |
2288 | clevermous | 743 | movzx eax, byte [ebp-1] |
744 | add eax, ebp |
||
745 | cmp edi, eax |
||
746 | jne .name_not_coincide |
||
747 | .done_1: |
||
6471 | pathoswith | 748 | pop eax eax edi edx |
2288 | clevermous | 749 | inc esi |
750 | ret |
||
6471 | pathoswith | 751 | |
752 | .name_not_coincide: |
||
753 | pop esi eax edi edx |
||
754 | stc |
||
755 | ret |