forked from KolibriOS/kolibrios
757 lines
16 KiB
PHP
757 lines
16 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision$
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uglobal
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cd_current_pointer_of_input dd 0
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cd_current_pointer_of_input_2 dd 0
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cd_mem_location dd 0
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cd_counter_block dd 0
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IDE_Channel_1 db 0
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IDE_Channel_2 db 0
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endg
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reserve_cd:
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cli
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cmp [cd_status],0
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je reserve_ok2
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sti
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call change_task
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jmp reserve_cd
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reserve_ok2:
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push eax
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mov eax,[CURRENT_TASK]
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shl eax,5
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mov eax,[eax+CURRENT_TASK+TASKDATA.pid]
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mov [cd_status],eax
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pop eax
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sti
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ret
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reserve_cd_channel:
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cmp [ChannelNumber],1
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jne .IDE_Channel_2
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.IDE_Channel_1:
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cli
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cmp [IDE_Channel_1],0
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je .reserve_ok_1
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sti
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call change_task
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jmp .IDE_Channel_1
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.IDE_Channel_2:
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cli
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cmp [IDE_Channel_2],0
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je .reserve_ok_2
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sti
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call change_task
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jmp .IDE_Channel_1
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.reserve_ok_1:
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mov [IDE_Channel_1],1
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ret
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.reserve_ok_2:
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mov [IDE_Channel_2],1
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ret
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free_cd_channel:
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cmp [ChannelNumber],1
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jne .IDE_Channel_2
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.IDE_Channel_1:
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mov [IDE_Channel_1],0
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ret
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.IDE_Channel_2:
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mov [IDE_Channel_2],0
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ret
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uglobal
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cd_status dd 0
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endg
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;----------------------------------------------------------------
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;
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; fs_CdRead - LFN variant for reading CD disk
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;
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; esi points to filename /dir1/dir2/.../dirn/file,0
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; ebx pointer to 64-bit number = first wanted byte, 0+
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; may be ebx=0 - start from first byte
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; ecx number of bytes to read, 0+
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; edx mem location to return data
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;
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; ret ebx = bytes read or 0xffffffff file not found
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; eax = 0 ok read or other = errormsg
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;
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;--------------------------------------------------------------
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fs_CdRead:
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push edi
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cmp byte [esi], 0
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jnz @f
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.noaccess:
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pop edi
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.noaccess_2:
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or ebx, -1
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mov eax, ERROR_ACCESS_DENIED
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ret
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.noaccess_3:
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pop eax edx ecx edi
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jmp .noaccess_2
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@@:
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call cd_find_lfn
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jnc .found
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pop edi
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cmp [DevErrorCode],0
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jne .noaccess_2
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or ebx, -1
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mov eax, ERROR_FILE_NOT_FOUND
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ret
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.found:
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mov edi,[cd_current_pointer_of_input]
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test byte [edi+25],10b ; do not allow read directories
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jnz .noaccess
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test ebx, ebx
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jz .l1
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cmp dword [ebx+4], 0
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jz @f
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xor ebx, ebx
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.reteof:
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mov eax, 6 ; end of file
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pop edi
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ret
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@@:
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mov ebx, [ebx]
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.l1:
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push ecx edx
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push 0
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mov eax, [edi+10] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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sub eax, ebx
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jb .eof
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cmp eax, ecx
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jae @f
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mov ecx, eax
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mov byte [esp], 6
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@@:
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mov eax,[edi+2]
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mov [CDSectorAddress],eax
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; now eax=cluster, ebx=position, ecx=count, edx=buffer for data
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.new_sector:
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test ecx, ecx
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jz .done
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sub ebx, 2048
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jae .next
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add ebx, 2048
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jnz .incomplete_sector
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cmp ecx, 2048
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jb .incomplete_sector
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; we may read and memmove complete sector
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mov [CDDataBuf_pointer],edx
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call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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cmp [DevErrorCode],0
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jne .noaccess_3
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add edx, 2048
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sub ecx, 2048
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.next:
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inc dword [CDSectorAddress]
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jmp .new_sector
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.incomplete_sector:
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; we must read and memmove incomplete sector
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mov [CDDataBuf_pointer],CDDataBuf
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call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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cmp [DevErrorCode],0
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jne .noaccess_3
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push ecx
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add ecx, ebx
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cmp ecx, 2048
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jbe @f
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mov ecx, 2048
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@@:
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sub ecx, ebx
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push edi esi ecx
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mov edi,edx
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lea esi, [CDDataBuf + ebx]
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cld
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rep movsb
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pop ecx esi edi
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add edx, ecx
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sub [esp], ecx
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pop ecx
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xor ebx, ebx
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jmp .next
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.done:
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mov ebx, edx
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pop eax edx ecx edi
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sub ebx, edx
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ret
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.eof:
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mov ebx, edx
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pop eax edx ecx
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sub ebx, edx
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jmp .reteof
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;----------------------------------------------------------------
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;
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; fs_CdReadFolder - LFN variant for reading CD disk folder
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;
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; esi points to filename /dir1/dir2/.../dirn/file,0
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; ebx pointer to structure 32-bit number = first wanted block, 0+
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; & flags (bitfields)
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; flags: bit 0: 0=ANSI names, 1=UNICODE names
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; ecx number of blocks to read, 0+
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; edx mem location to return data
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;
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; ret ebx = blocks read or 0xffffffff folder not found
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; eax = 0 ok read or other = errormsg
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;
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;--------------------------------------------------------------
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fs_CdReadFolder:
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push edi
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call cd_find_lfn
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jnc .found
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pop edi
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cmp [DevErrorCode], 0
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jne .noaccess_1
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or ebx, -1
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mov eax, ERROR_FILE_NOT_FOUND
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ret
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.found:
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mov edi, [cd_current_pointer_of_input]
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test byte [edi+25], 10b ; do not allow read directories
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jnz .found_dir
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pop edi
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.noaccess_1:
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or ebx, -1
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mov eax, ERROR_ACCESS_DENIED
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ret
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.found_dir:
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mov eax, [edi+2] ; eax=cluster
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mov [CDSectorAddress], eax
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mov eax, [edi+10] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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.doit:
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; init header
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push eax ecx
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mov edi, edx
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mov ecx, 32/4
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xor eax, eax
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rep stosd
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pop ecx eax
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mov byte [edx], 1 ; version
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mov [cd_mem_location], edx
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add [cd_mem_location], 32
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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;.mainloop:
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mov [cd_counter_block], dword 0
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dec dword [CDSectorAddress]
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push ecx
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.read_to_buffer:
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inc dword [CDSectorAddress]
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mov [CDDataBuf_pointer], CDDataBuf
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call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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cmp [DevErrorCode], 0
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jne .noaccess_1
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call .get_names_from_buffer
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sub eax,2048
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
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ja .read_to_buffer
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mov edi, [cd_counter_block]
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mov [edx+8], edi
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mov edi, [ebx]
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sub [edx+4], edi
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xor eax, eax
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dec ecx
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js @f
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mov al, ERROR_END_OF_FILE
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@@:
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pop ecx edi
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mov ebx, [edx+4]
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ret
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.get_names_from_buffer:
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mov [cd_current_pointer_of_input_2],CDDataBuf
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push eax esi edi edx
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.get_names_from_buffer_1:
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call cd_get_name
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jc .end_buffer
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inc dword [cd_counter_block]
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mov eax,[cd_counter_block]
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cmp [ebx],eax
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jae .get_names_from_buffer_1
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test ecx, ecx
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jz .get_names_from_buffer_1
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mov edi,[cd_counter_block]
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mov [edx+4],edi
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dec ecx
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mov esi,ebp
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mov edi,[cd_mem_location]
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add edi,40
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test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE
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jnz .unicode
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; jmp .unicode
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.ansi:
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cmp [cd_counter_block],2
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jbe .ansi_parent_directory
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cld
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lodsw
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xchg ah,al
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call uni2ansi_char
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cld
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stosb
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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mov ax,[esi]
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cmp ax,word 3B00h ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ';'
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je .cd_get_parameters_of_file_1
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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movzx eax,byte [ebp-33]
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add eax,ebp
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sub eax,34
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cmp esi,eax
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je .cd_get_parameters_of_file_1
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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movzx eax,byte [ebp-1]
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add eax,ebp
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cmp esi,eax
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jb .ansi
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.cd_get_parameters_of_file_1:
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mov [edi],byte 0
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call cd_get_parameters_of_file
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add [cd_mem_location],304
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jmp .get_names_from_buffer_1
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.ansi_parent_directory:
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cmp [cd_counter_block],2
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je @f
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mov [edi],byte '.'
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inc edi
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jmp .cd_get_parameters_of_file_1
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@@:
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mov [edi],word '..'
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add edi,2
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jmp .cd_get_parameters_of_file_1
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.unicode:
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cmp [cd_counter_block],2
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jbe .unicode_parent_directory
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cld
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movsw
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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mov ax,[esi]
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cmp ax,word 3B00h ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ';'
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je .cd_get_parameters_of_file_2
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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movzx eax,byte [ebp-33]
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add eax,ebp
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sub eax,34
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cmp esi,eax
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je .cd_get_parameters_of_file_2
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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movzx eax,byte [ebp-1]
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add eax,ebp
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cmp esi,eax
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jb .unicode
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.cd_get_parameters_of_file_2:
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mov [edi],word 0
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call cd_get_parameters_of_file
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add [cd_mem_location],560
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jmp .get_names_from_buffer_1
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.unicode_parent_directory:
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cmp [cd_counter_block],2
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je @f
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mov [edi],word 2E00h ; '.'
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add edi,2
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jmp .cd_get_parameters_of_file_2
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@@:
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mov [edi],dword 2E002E00h ; '..'
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add edi,4
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jmp .cd_get_parameters_of_file_2
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.end_buffer:
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pop edx edi esi eax
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ret
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cd_get_parameters_of_file:
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mov edi,[cd_mem_location]
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cd_get_parameters_of_file_1:
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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xor eax,eax
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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inc eax
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shl eax,1
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; <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
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test [ebp-8],byte 2
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jz .file
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inc eax
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.file:
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD> FAT, <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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shl eax,3
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>? (<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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test [ebp-8],byte 1
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jz .hidden
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inc eax
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.hidden:
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shl eax,1
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> CD
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inc eax
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mov [edi],eax
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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;<EFBFBD><EFBFBD><EFBFBD>
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movzx eax,byte [ebp-12]
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shl eax,8
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;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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mov al,[ebp-11]
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shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-10]
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+8],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+16],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+24],eax
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
;<EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-15]
|
||
add eax,1900
|
||
shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-14]
|
||
shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-13]
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+12],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+20],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+28],eax
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
xor eax,eax
|
||
test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE
|
||
jnz .unicode_1
|
||
mov [edi+4],eax
|
||
jmp @f
|
||
.unicode_1:
|
||
inc eax
|
||
mov [edi+4],eax
|
||
@@:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
xor eax,eax
|
||
mov [edi+32+4],eax
|
||
mov eax,[ebp-23]
|
||
mov [edi+32],eax
|
||
ret
|
||
|
||
;----------------------------------------------------------------
|
||
;
|
||
; fs_CdGetFileInfo - LFN variant for CD
|
||
; get file/directory attributes structure
|
||
;
|
||
;----------------------------------------------------------------
|
||
fs_CdGetFileInfo:
|
||
cmp byte [esi], 0
|
||
jnz @f
|
||
mov eax, 2
|
||
ret
|
||
@@:
|
||
push edi
|
||
call cd_find_lfn
|
||
pushfd
|
||
cmp [DevErrorCode], 0
|
||
jz @f
|
||
popfd
|
||
pop edi
|
||
mov eax, 11
|
||
ret
|
||
@@:
|
||
popfd
|
||
jnc @f
|
||
pop edi
|
||
mov eax, ERROR_FILE_NOT_FOUND
|
||
ret
|
||
@@:
|
||
|
||
mov edi, edx
|
||
push ebp
|
||
mov ebp, [cd_current_pointer_of_input]
|
||
add ebp, 33
|
||
call cd_get_parameters_of_file_1
|
||
pop ebp
|
||
and dword [edi+4], 0
|
||
pop edi
|
||
xor eax, eax
|
||
ret
|
||
|
||
;----------------------------------------------------------------
|
||
cd_find_lfn:
|
||
mov [cd_appl_data],0
|
||
; in: esi+ebp -> name
|
||
; out: CF=1 - file not found
|
||
; else CF=0 and [cd_current_pointer_of_input] direntry
|
||
push eax esi
|
||
; 16 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
|
||
call WaitUnitReady
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
|
||
call prevent_medium_removal
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [CDSectorAddress],dword 16
|
||
call ReadCDWRetr ;_1
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
call WaitUnitReady
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
call Read_TOC
|
||
mov ah,[CDDataBuf+4+4]
|
||
mov al,[CDDataBuf+4+5]
|
||
shl eax,16
|
||
mov ah,[CDDataBuf+4+6]
|
||
mov al,[CDDataBuf+4+7]
|
||
add eax,15
|
||
mov [CDSectorAddress],eax
|
||
; mov [CDSectorAddress],dword 15
|
||
mov [CDDataBuf_pointer],CDDataBuf
|
||
|
||
.start:
|
||
inc dword [CDSectorAddress]
|
||
call ReadCDWRetr ;_1
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
|
||
.start_check:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [CDDataBuf+1],dword 'CD00'
|
||
jne .access_denied
|
||
cmp [CDDataBuf+5],byte '1'
|
||
jne .access_denied
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp [CDDataBuf],byte 0xff
|
||
je .access_denied
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp [CDDataBuf],byte 0x2
|
||
jne .start
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp [CDDataBuf+6],byte 0x1
|
||
jne .start
|
||
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> root <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov eax,[CDDataBuf+0x9c+2] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> root <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [CDSectorAddress],eax
|
||
mov eax,[CDDataBuf+0x9c+10] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> root <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp byte [esi], 0
|
||
jnz @f
|
||
mov [cd_current_pointer_of_input],CDDataBuf+0x9c
|
||
jmp .done
|
||
@@:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.mainloop:
|
||
dec dword [CDSectorAddress]
|
||
.read_to_buffer:
|
||
inc dword [CDSectorAddress]
|
||
mov [CDDataBuf_pointer],CDDataBuf
|
||
call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
push ebp
|
||
call cd_find_name_in_buffer
|
||
pop ebp
|
||
jnc .found
|
||
sub eax,2048
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp eax,0
|
||
ja .read_to_buffer
|
||
; <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.access_denied:
|
||
pop esi eax
|
||
mov [cd_appl_data],1
|
||
stc
|
||
ret
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.found:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp byte [esi-1], 0
|
||
jz .done
|
||
.nested:
|
||
mov eax,[cd_current_pointer_of_input]
|
||
push dword [eax+2]
|
||
pop dword [CDSectorAddress] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov eax,[eax+2+8] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
jmp .mainloop
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.done:
|
||
test ebp, ebp
|
||
jz @f
|
||
mov esi, ebp
|
||
xor ebp, ebp
|
||
jmp .nested
|
||
@@:
|
||
pop esi eax
|
||
mov [cd_appl_data],1
|
||
clc
|
||
ret
|
||
|
||
cd_find_name_in_buffer:
|
||
mov [cd_current_pointer_of_input_2],CDDataBuf
|
||
.start:
|
||
call cd_get_name
|
||
jc .not_found
|
||
call cd_compare_name
|
||
jc .start
|
||
.found:
|
||
clc
|
||
ret
|
||
.not_found:
|
||
stc
|
||
ret
|
||
|
||
cd_get_name:
|
||
push eax
|
||
mov ebp,[cd_current_pointer_of_input_2]
|
||
mov [cd_current_pointer_of_input],ebp
|
||
mov eax,[ebp]
|
||
cmp eax,0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
je .next_sector
|
||
cmp ebp,CDDataBuf+2048 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
jae .next_sector
|
||
movzx eax, byte [ebp]
|
||
add [cd_current_pointer_of_input_2],eax ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
add ebp,33 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
pop eax
|
||
clc
|
||
ret
|
||
.next_sector:
|
||
pop eax
|
||
stc
|
||
ret
|
||
|
||
cd_compare_name:
|
||
; compares ASCIIZ-names, case-insensitive (cp866 encoding)
|
||
; in: esi->name, ebp->name
|
||
; out: if names match: ZF=1 and esi->next component of name
|
||
; else: ZF=0, esi is not changed
|
||
; destroys eax
|
||
push esi eax edi
|
||
mov edi,ebp
|
||
.loop:
|
||
cld
|
||
lodsb
|
||
push eax
|
||
call char_todown
|
||
call ansi2uni_char
|
||
xchg ah,al
|
||
scasw
|
||
pop eax
|
||
je .coincides
|
||
call char_toupper
|
||
call ansi2uni_char
|
||
xchg ah,al
|
||
sub edi,2
|
||
scasw
|
||
jne .name_not_coincide
|
||
.coincides:
|
||
cmp [esi],byte '/' ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
je .done
|
||
cmp [esi],byte 0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
je .done
|
||
jmp .loop
|
||
.name_not_coincide:
|
||
pop edi eax esi
|
||
stc
|
||
ret
|
||
.done:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [edi],word 3B00h ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ';'
|
||
je .done_1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-33]
|
||
add eax,ebp
|
||
sub eax,34
|
||
cmp edi,eax
|
||
je .done_1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-1]
|
||
add eax,ebp
|
||
cmp edi,eax
|
||
jne .name_not_coincide
|
||
.done_1:
|
||
pop edi eax
|
||
add esp,4
|
||
inc esi
|
||
clc
|
||
ret
|
||
|
||
char_todown:
|
||
; convert character to uppercase, using cp866 encoding
|
||
; in: al=symbol
|
||
; out: al=converted symbol
|
||
cmp al, 'A'
|
||
jb .ret
|
||
cmp al, 'Z'
|
||
jbe .az
|
||
cmp al, '<27>'
|
||
jb .ret
|
||
cmp al, '<27>'
|
||
jb .rus1
|
||
cmp al, '<27>'
|
||
ja .ret
|
||
; 0x90-0x9F -> 0xE0-0xEF
|
||
add al, '<27>'-'<27>'
|
||
.ret:
|
||
ret
|
||
.rus1:
|
||
; 0x80-0x8F -> 0xA0-0xAF
|
||
.az:
|
||
add al, 0x20
|
||
ret
|
||
|
||
uni2ansi_char:
|
||
; convert UNICODE character in al to ANSI character in ax, using cp866 encoding
|
||
; in: ax=UNICODE character
|
||
; out: al=converted ANSI character
|
||
cmp ax, 0x80
|
||
jb .ascii
|
||
cmp ax, 0x401
|
||
jz .yo1
|
||
cmp ax, 0x451
|
||
jz .yo2
|
||
cmp ax, 0x410
|
||
jb .unk
|
||
cmp ax, 0x440
|
||
jb .rus1
|
||
cmp ax, 0x450
|
||
jb .rus2
|
||
.unk:
|
||
mov al, '_'
|
||
jmp .doit
|
||
.yo1:
|
||
mov al, '<27>'
|
||
jmp .doit
|
||
.yo2:
|
||
mov al, '<27>'
|
||
jmp .doit
|
||
.rus1:
|
||
; 0x410-0x43F -> 0x80-0xAF
|
||
add al, 0x70
|
||
jmp .doit
|
||
.rus2:
|
||
; 0x440-0x44F -> 0xE0-0xEF
|
||
add al, 0xA0
|
||
.ascii:
|
||
.doit:
|
||
ret
|