forked from KolibriOS/kolibrios
2841 lines
82 KiB
PHP
2841 lines
82 KiB
PHP
; Loading of 7z archives was ported from 7z sources (file 7zip\Archive\7z\7zIn.cpp).
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; The version 7-Zip 4.42 was used.
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; 7-Zip is copyright (C) 1999-2006 Igor Pavlov.
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; Assembler version as KFar plugin has been written by diamond, 2007.
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virtual at 0
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file_in_7z:
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.fullname dd ? ; pointer to cp866 string
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.name dd ?
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.namelen dd ?
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.bIsDirectory db ?
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.bPseudoFolder db ?
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rb 2
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.parent dd ? ; pointer to parent directory record
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.subfolders dd ? ; head of L2-list of subfolders [for folders]
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.subfolders.end dd ?
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.subfiles dd ? ; head of L2-list of files [for folders]
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.subfiles.end dd ?
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.NumSubItems dd ?
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.next dd ? ; next item of list of subfolders or files
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.prev dd ? ; previous item of list of subfolders or files
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.stamp dd ?
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.attr dd ?
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.FileCRC dd ?
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.startPos dq ?
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.CreationTime dq ?
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.LastAccessTime dq ?
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.LastWriteTime dq ?
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.UnPackSize dq ?
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.folder dd ?
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.folder_index dd ?
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.folderStart dq ?
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.bAttrDefined db ?
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.bStartPosDefined db ?
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.bCRCDefined db ?
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.bCreationTimeDefined db ?
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.bLastAccessTimeDefined db ?
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.bLastWriteTimeDefined db ?
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.bHasStream db ?
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.bAnti db ?
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.size = $
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end virtual
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virtual at 0
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handle_7z:
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.type dd ?
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.root.subfolders dd ?
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.root.subfolders.end dd ?
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.root.subfiles dd ?
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.root.subfiles.end dd ?
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.root.NumSubItems dd ?
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.curdir dd ?
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.NumFiles dd ?
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.names_buf dd ?
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.host dd ?
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.host_datetime rd 6
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; streams info
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.numPackStreams dd ?
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.packSizes dd ?
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.numFolders dd ?
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.unpackCRCsDefined dd ?
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.unpackCRCs dd ?
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.folders dd ?
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.last_folder dd ?
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.last_pos dq ?
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.last_context dd ?
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.last_main_stream dd ?
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.password_len dd ? ; -1 if no password defined; in characters
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.password rw password_maxlen
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.basesize = $
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; .size = .basesize + .NumFiles * file_in_7z.size
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end virtual
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iglobal
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align 4
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empty_7z_handle:
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dd type_7z
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dd 0,0,0,0,0,0
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endg
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kEnd = 0
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kHeader = 1
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kArchiveProperties = 2
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kAdditionalStreamsInfo = 3
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kMainStreamsInfo = 4
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kFilesInfo = 5
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kPackInfo = 6
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kUnPackInfo = 7
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kSubStreamsInfo = 8
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kSize = 9
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kCRC = 10
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kFolder = 11
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kCodersUnPackSize = 12
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kNumUnPackStream = 13
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kEmptyStream = 14
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kEmptyFile = 15
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kAnti = 16
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kName = 17
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kCreationTime = 18
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kLastAccessTime = 19
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kLastWriteTime = 20
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kWinAttributes = 21
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kComment = 22
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kEncodedHeader = 23
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kStartPos = 24
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_7z.ReadByte:
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cmp edi, [bufend]
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jae return.err
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mov al, [edi]
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inc edi
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ret
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_7z.ReadWord:
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add edi, 2
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cmp edi, [bufend]
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ja return.err
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mov ax, [edi-2]
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ret
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_7z.ReadDword:
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add edi, 4
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cmp edi, [bufend]
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ja return.err
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mov eax, [edi-4]
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ret
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_7z.SkipSize:
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test edx, edx
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jnz return.err
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add edi, eax
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jc return.err
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cmp edi, [bufend]
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ja return.err
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ret
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_7z.ReadNumber:
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xor eax, eax
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push eax
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push eax
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call _7z.ReadByte
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push ecx
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xor ecx, ecx
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@@:
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add al, al
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jnc @f
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inc ecx
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jmp @b
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@@:
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shr eax, cl
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shr eax, 1
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jz @f
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mov [esp+4+ecx], al
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@@:
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jecxz .ret
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push edx
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xor edx, edx
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@@:
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call _7z.ReadByte
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mov [esp+8+edx], al
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inc edx
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loop @b
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pop edx
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.ret:
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pop ecx
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pop eax
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pop edx
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ret
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_7z.ReadNum:
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push edx
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call _7z.ReadNumber
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test edx, edx
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jnz return.err
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test eax, eax
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js return.err
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pop edx
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ret
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open_7z:
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; CInArchive::ReadDatabase()
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cmp byte [esi+6], 0 ; major version must be 0
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; minor version does not be checked ([byte +7]=2 for now)
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jz @f
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xor eax, eax
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ret
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@@:
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and [hOut], 0
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and [_7z.FreeSubStreams], 0
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and [_7z.tmpVector], 0
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push esi
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add esi, 12
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mov ecx, 20
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call crc
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pop esi
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cmp eax, [esi+8]
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jnz .header_crc_error
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cmp dword [esi+24], 0
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jnz .header_error
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mov edi, buffer
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mov ecx, [esi+20]
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mov [bufsize], ecx
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test ecx, ecx
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jnz .notempty
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mov eax, empty_7z_handle
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push ebp
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call [close]
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ret
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.notempty:
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cmp ecx, 1024
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jbe @f
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call [pgalloc]
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test eax, eax
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jz .reterr
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mov edi, eax
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@@:
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mov [bufptr], edi
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lea eax, [edi+ecx]
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mov [bufend], eax
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mov eax, [esi+12]
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mov edx, [esi+16]
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add eax, 20h ; end of main header
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adc edx, 0
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push edx
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push eax
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push 0
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push ebp
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call [seek]
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push ecx
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push edi
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push ebp
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call [read]
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cmp eax, ecx
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jnz .header_error
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push esi
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mov esi, edi
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call crc
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pop esi
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cmp eax, [esi+28]
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jz .header_ok
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.header_crc_error:
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.header_error:
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push ContinueBtn
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push 1
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push HeaderError_ptr
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push 1
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call [SayErr]
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.clear:
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mov ecx, [_7z.tmpVector]
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jecxz @f
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call [pgfree]
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@@:
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mov ecx, [hOut]
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jecxz @f
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call _7z.CloseHandle
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@@:
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mov ebx, [_7z.dataVectorSize]
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test ebx, ebx
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jz @f
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call _7z.ReadAndDecodePackedStreams.free2
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@@:
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mov ecx, [_7z.FreeSubStreams]
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jecxz @f
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call [pgfree]
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@@:
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mov ecx, [bufptr]
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cmp ecx, buffer
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jz .reterr
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call [pgfree]
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.reterr:
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or eax, -1
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ret
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.header_ok:
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mov [_esp], esp
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mov [inStream], ebp
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.loop:
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mov [error_proc], .header_error
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mov [clear_proc], .clear
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and [_7z.dataVectorSize], 0
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call _7z.ReadNum
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cmp eax, kHeader
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jz .found_header
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cmp eax, kEncodedHeader
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jnz .header_error
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call _7z.ReadAndDecodePackedStreams
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cmp [_7z.StreamsInfo.numFolders], 0
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jz .free_empty
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cmp [_7z.StreamsInfo.numFolders], 1
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jnz return.err
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mov ecx, [bufptr]
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cmp ecx, buffer
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jz @f
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call [pgfree]
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@@:
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mov edi, [_7z.unpbuf+4]
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mov [bufptr], edi
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mov ecx, [_7z.unpbuf]
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add ecx, edi
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mov [bufend], ecx
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mov [error_proc], .header_error
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mov [clear_proc], .clear
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and [_7z.dataVectorSize], 0
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call _7z.ReadNum
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cmp eax, kHeader
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jz .found_header
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jmp return.err
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.free_empty:
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mov ecx, [bufptr]
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cmp ecx, buffer
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jz @f
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call [pgfree]
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@@:
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push [inStream]
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call [close]
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mov eax, empty_7z_handle
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ret
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.found_header:
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call _7z.ReadNum
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cmp eax, kArchiveProperties
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jnz .no_archive_props
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@@:
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call _7z.ReadNum
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test eax, eax
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jz @f
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call _7z.SkipData
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jmp @b
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@@:
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call _7z.ReadNum
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.no_archive_props:
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cmp eax, kAdditionalStreamsInfo
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jnz .no_additional_streams
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call _7z.ReadAndDecodePackedStreams
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mov eax, [_7z.unpacked]
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mov [_7z.dataVector], eax
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mov eax, [_7z.StreamsInfo.numFolders]
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mov [_7z.dataVectorSize], eax
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mov [error_proc], .header_error
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mov [clear_proc], .clear
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call _7z.ReadNum
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.no_additional_streams:
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cmp eax, kMainStreamsInfo
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jnz return.err
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call _7z.ReadStreamsInfo
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call _7z.ReadNum
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test eax, eax
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jnz .notempty2
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.empty2:
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mov ebx, [_7z.dataVectorSize]
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test ebx, ebx
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jz @f
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call _7z.ReadAndDecodePackedStreams.free2
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@@:
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mov ecx, [_7z.FreeSubStreams]
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jecxz @f
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call [pgfree]
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@@:
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mov ecx, [bufptr]
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cmp ecx, buffer
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jz @f
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call [pgfree]
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@@:
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push [inStream]
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call [close]
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mov eax, empty_7z_handle
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ret
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.notempty2:
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cmp eax, kFilesInfo
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jnz return.err
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call _7z.ReadNum
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test eax, eax
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jz .empty2
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mov ebx, eax ; number of files in archive
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imul ecx, ebx, file_in_7z.size
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add ecx, handle_7z.basesize
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mov [hOut.allocated], ecx
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call [pgalloc]
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test eax, eax
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jz return.clear
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mov [hOut], eax
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mov [eax+handle_7z.type], type_7z
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mov [eax+handle_7z.NumFiles], ebx
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push edi
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lea edi, [eax+handle_7z.numPackStreams]
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mov esi, _7z.StreamsInfo
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mov ecx, 6
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rep movsd
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or [eax+handle_7z.password_len], -1
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or [eax+handle_7z.last_folder], -1
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mov [eax+handle_7z.last_context], ecx
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mov [eax+handle_7z.names_buf], ecx
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mov [eax+handle_7z.host], ecx
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cmp [bPasswordDefined], cl
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jz @f
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mov ecx, [password_size]
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mov [eax+handle_7z.password_len], ecx
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lea edi, [eax+handle_7z.password]
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mov esi, password_unicode
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shr ecx, 1
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rep movsd
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adc ecx, ecx
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rep movsw
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@@:
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lea edi, [eax+handle_7z.basesize]
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imul ecx, ebx, file_in_7z.size/4
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xor eax, eax
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rep stosd
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pop edi
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mov eax, [_7z.StreamsInfo.SubStreamsSizes]
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mov [_7z.FreeSubStreams], eax
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mov [error_proc], .header_error
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mov [clear_proc], .clear
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mov ecx, ebx
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shl ecx, 2
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call [pgalloc]
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test eax, eax
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jz return.clear
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push edi
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mov edi, eax
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mov [_7z.tmpVector], eax
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add eax, ebx
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mov [_7z.emptyStreams], eax
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add eax, ebx
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mov [_7z.emptyFiles], eax
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add eax, ebx
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mov [_7z.antiFiles], eax
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mov ecx, ebx
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xor eax, eax
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rep stosd
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pop edi
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mov [_7z.numEmptyStreams], eax
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.parse_header:
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||
call _7z.ReadNum
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test eax, eax
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jz .parse_header_done
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mov ecx, eax ; ecx = type
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call _7z.ReadNum ; eax = size
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cmp ecx, kName
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jz .parse_names
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cmp ecx, kWinAttributes
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jz .parse_winAttr
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cmp ecx, kStartPos
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jz .parse_startPos
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||
cmp ecx, kEmptyStream
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jz .parse_emptyStream
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cmp ecx, kEmptyFile
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||
jz .parse_emptyFile
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cmp ecx, kAnti
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||
jz .parse_anti
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||
cmp ecx, kCreationTime
|
||
jz .parse_time
|
||
cmp ecx, kLastWriteTime
|
||
jz .parse_time
|
||
cmp ecx, kLastAccessTime
|
||
jz .parse_time
|
||
xor edx, edx
|
||
call _7z.SkipSize
|
||
jmp .parse_header
|
||
.parse_names:
|
||
push eax
|
||
call _7z.SwitchStream
|
||
pop eax
|
||
jz @f
|
||
mov eax, [bufend]
|
||
sub eax, edi
|
||
@@:
|
||
shr eax, 1 ; size of ANSI string is a half of size of UNICODE string
|
||
mov ecx, eax
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov ebp, eax
|
||
mov esi, [hOut]
|
||
mov [esi+handle_7z.names_buf], eax
|
||
add eax, ecx
|
||
push eax ; remember limit
|
||
mov ecx, ebx
|
||
add esi, handle_7z.basesize + file_in_7z.fullname
|
||
mov [bWasWarning], 0
|
||
.parse_names_loop:
|
||
mov [esi], ebp
|
||
add esi, file_in_7z.size
|
||
.parse_names_loop_int:
|
||
cmp ebp, [esp]
|
||
jae return.err
|
||
call _7z.ReadWord
|
||
; UNICODE char -> cp866 char
|
||
cmp ax, 0x80
|
||
jb .id
|
||
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:
|
||
cmp [bWasWarning], 0
|
||
jnz @f
|
||
push ContinueBtn
|
||
push 1
|
||
push aEncodingProblem_str_ptr
|
||
push 3
|
||
push aEncodingProblem
|
||
call [Message]
|
||
inc [bWasWarning]
|
||
@@:
|
||
mov al, '_'
|
||
jmp .id
|
||
.yo1:
|
||
mov al, '<27>'
|
||
jmp .id
|
||
.yo2:
|
||
mov al, '<27>'
|
||
jmp .id
|
||
.rus1:
|
||
; 0x410-0x43F -> 0x80-0xAF
|
||
add al, 0x70
|
||
jmp .id
|
||
.rus2:
|
||
; 0x440-0x44F -> 0xE0-0xEF
|
||
add al, 0xA0
|
||
.id:
|
||
mov [ebp], al
|
||
inc ebp
|
||
test al, al
|
||
jnz .parse_names_loop_int
|
||
loop .parse_names_loop
|
||
pop eax
|
||
call _7z.UnswitchStream
|
||
jmp .parse_header
|
||
.parse_winAttr:
|
||
mov edx, [_7z.tmpVector]
|
||
push ebx
|
||
mov ecx, ebx
|
||
mov ebx, edx
|
||
call _7z.ReadBoolVector2
|
||
pop ebx
|
||
call _7z.SwitchStream
|
||
mov esi, [hOut]
|
||
add esi, handle_7z.basesize
|
||
mov ecx, ebx
|
||
.winAttrLoop:
|
||
mov al, [edx]
|
||
inc edx
|
||
mov [esi+file_in_7z.bAttrDefined], al
|
||
test al, al
|
||
jz @f
|
||
call _7z.ReadDword
|
||
mov [esi+file_in_7z.attr], eax
|
||
@@:
|
||
add esi, file_in_7z.size
|
||
loop .winAttrLoop
|
||
call _7z.UnswitchStream
|
||
jmp .parse_header
|
||
.parse_startPos:
|
||
mov edx, [_7z.tmpVector]
|
||
push ebx
|
||
mov ecx, ebx
|
||
mov ebx, edx
|
||
call _7z.ReadBoolVector2
|
||
pop ebx
|
||
call _7z.SwitchStream
|
||
mov esi, [hOut]
|
||
add esi, handle_7z.basesize
|
||
mov ecx, ebx
|
||
.startPosLoop:
|
||
mov al, [edx]
|
||
inc edx
|
||
mov [esi+file_in_7z.bStartPosDefined], al
|
||
test al, al
|
||
jz @f
|
||
call _7z.ReadDword
|
||
mov dword [esi+file_in_7z.startPos], eax
|
||
call _7z.ReadDword
|
||
mov dword [esi+file_in_7z.startPos+4], eax
|
||
@@:
|
||
add esi, file_in_7z.size
|
||
loop .startPosLoop
|
||
call _7z.UnswitchStream
|
||
jmp .parse_header
|
||
.parse_emptyStream:
|
||
mov edx, [_7z.emptyStreams]
|
||
push ebx
|
||
mov ecx, ebx
|
||
mov ebx, edx
|
||
call _7z.ReadBoolVector
|
||
pop ebx
|
||
and [_7z.numEmptyStreams], 0
|
||
mov ecx, ebx
|
||
.emptyStrLoop:
|
||
cmp byte [edx], 0
|
||
jz @f
|
||
inc [_7z.numEmptyStreams]
|
||
@@:
|
||
inc edx
|
||
loop .emptyStrLoop
|
||
jmp .parse_header
|
||
.parse_emptyFile:
|
||
push ebx
|
||
mov ecx, [_7z.numEmptyStreams]
|
||
mov ebx, [_7z.emptyFiles]
|
||
call _7z.ReadBoolVector
|
||
pop ebx
|
||
jmp .parse_header
|
||
.parse_anti:
|
||
push ebx
|
||
mov ecx, [_7z.numEmptyStreams]
|
||
mov ebx, [_7z.antiFiles]
|
||
call _7z.ReadBoolVector
|
||
pop ebx
|
||
jmp .parse_header
|
||
.parse_time:
|
||
push ecx
|
||
push ebx
|
||
mov ecx, ebx
|
||
mov ebx, [_7z.tmpVector]
|
||
call _7z.ReadBoolVector2
|
||
pop ebx
|
||
call _7z.SwitchStream
|
||
mov esi, [hOut]
|
||
add esi, handle_7z.basesize
|
||
xor ecx, ecx
|
||
.timeLoop:
|
||
mov eax, [_7z.tmpVector]
|
||
mov al, [eax+ecx]
|
||
pop edx
|
||
push edx
|
||
mov [esi + file_in_7z.bCreationTimeDefined + edx - kCreationTime], al
|
||
test al, al
|
||
jz @f
|
||
call _7z.ReadDword
|
||
push eax
|
||
call _7z.ReadDword
|
||
mov edx, eax
|
||
pop eax
|
||
push edi
|
||
mov edi, [esp+4]
|
||
lea edi, [esi + file_in_7z.CreationTime + (edi-kCreationTime)*8]
|
||
call ntfs_datetime_to_bdfe
|
||
pop edi
|
||
@@:
|
||
add esi, file_in_7z.size
|
||
inc ecx
|
||
cmp ecx, ebx
|
||
jb .timeLoop
|
||
call _7z.UnswitchStream
|
||
pop eax
|
||
jmp .parse_header
|
||
.parse_header_done:
|
||
xor ecx, ecx ; index in emptyFiles
|
||
xor edx, edx ; index in subStreams
|
||
xor ebp, ebp ; index in files
|
||
mov esi, [hOut]
|
||
add esi, handle_7z.basesize
|
||
.filesLoop:
|
||
mov eax, [_7z.emptyStreams]
|
||
mov al, [eax+ebp]
|
||
xor al, 1
|
||
mov [esi+file_in_7z.bHasStream], al
|
||
jz .nostream
|
||
mov [esi+file_in_7z.bIsDirectory], 0
|
||
mov [esi+file_in_7z.bAnti], 0
|
||
mov eax, [_7z.StreamsInfo.SubStreamsSizes]
|
||
push dword [eax+edx*8]
|
||
pop dword [esi+file_in_7z.UnPackSize]
|
||
push dword [eax+edx*8+4]
|
||
pop dword [esi+file_in_7z.UnPackSize+4]
|
||
mov eax, [_7z.StreamsInfo.SubStreamsCRCsDefined]
|
||
mov al, [eax+edx]
|
||
mov [esi+file_in_7z.bCRCDefined], al
|
||
test al, al
|
||
jz @f
|
||
mov eax, [_7z.StreamsInfo.SubStreamsCRCs]
|
||
mov eax, [eax+edx*4]
|
||
mov [esi+file_in_7z.FileCRC], eax
|
||
@@:
|
||
inc edx
|
||
jmp .filesCont
|
||
.nostream:
|
||
mov eax, [_7z.emptyFiles]
|
||
cmp byte [eax+ecx], 0
|
||
setz [esi+file_in_7z.bIsDirectory]
|
||
mov eax, [_7z.antiFiles]
|
||
cmp byte [eax+ecx], 0
|
||
setnz [esi+file_in_7z.bAnti]
|
||
and dword [esi+file_in_7z.UnPackSize], 0
|
||
and dword [esi+file_in_7z.UnPackSize+4], 0
|
||
mov [esi+file_in_7z.bCRCDefined], 0
|
||
inc ecx
|
||
.filesCont:
|
||
inc ebp
|
||
add esi, file_in_7z.size
|
||
dec ebx
|
||
jnz .filesLoop
|
||
mov ecx, [_7z.tmpVector]
|
||
call [pgfree]
|
||
and [_7z.tmpVector], 0
|
||
mov ebx, [_7z.dataVectorSize]
|
||
test ebx, ebx
|
||
jz @f
|
||
call _7z.ReadAndDecodePackedStreams.free2
|
||
and [_7z.dataVectorSize], 0
|
||
@@:
|
||
mov ecx, [_7z.FreeSubStreams]
|
||
jecxz @f
|
||
call [pgfree]
|
||
and [_7z.FreeSubStreams], 0
|
||
@@:
|
||
mov ecx, [bufptr]
|
||
cmp ecx, buffer
|
||
jz @f
|
||
call [pgfree]
|
||
mov [bufptr], buffer
|
||
@@:
|
||
xor esi, esi ; index of folder
|
||
mov edi, [hOut]
|
||
mov ebx, [edi+handle_7z.NumFiles]
|
||
add edi, handle_7z.basesize ; pointer to fileinfo
|
||
push 0 ; start index of packed stream for folder
|
||
.getfoldersloop0:
|
||
xor edx, edx ; index in folder
|
||
push edx edx ; position in folder
|
||
.getfoldersloop:
|
||
dec ebx
|
||
js .getfoldersdone
|
||
cmp [edi+file_in_7z.bHasStream], 0
|
||
jnz @f
|
||
test edx, edx
|
||
jz .nofolder
|
||
@@:
|
||
test edx, edx
|
||
jnz .notfirst
|
||
; skip empty folders
|
||
@@:
|
||
mov eax, [hOut]
|
||
cmp esi, [eax+handle_7z.numFolders]
|
||
jae return.err
|
||
mov eax, [eax+handle_7z.folders]
|
||
mov eax, [eax+esi*4]
|
||
cmp edx, [eax+_7z.StreamsInfo.numUnPackStreams]
|
||
jb @f
|
||
inc esi
|
||
jmp @b
|
||
@@:
|
||
.notfirst:
|
||
mov [edi+file_in_7z.folder], esi
|
||
mov [edi+file_in_7z.folder_index], edx
|
||
mov eax, [esp]
|
||
mov dword [edi+file_in_7z.folderStart], eax
|
||
mov eax, [esp+4]
|
||
mov dword [edi+file_in_7z.folderStart+4], eax
|
||
mov ecx, dword [edi+file_in_7z.UnPackSize]
|
||
add [esp], ecx
|
||
mov ecx, dword [edi+file_in_7z.UnPackSize+4]
|
||
adc [esp+4], ecx
|
||
add edi, file_in_7z.size
|
||
inc edx
|
||
mov eax, [hOut]
|
||
mov eax, [eax+handle_7z.folders]
|
||
mov eax, [eax+esi*4]
|
||
cmp edx, [eax+_7z.StreamsInfo.numUnPackStreams]
|
||
jb .getfoldersloop
|
||
inc esi
|
||
pop edx edx
|
||
jmp .getfoldersloop0
|
||
.nofolder:
|
||
push -1
|
||
pop eax
|
||
mov [edi+file_in_7z.folder], eax
|
||
mov [edi+file_in_7z.folder_index], eax
|
||
mov dword [edi+file_in_7z.folderStart], eax
|
||
mov dword [edi+file_in_7z.folderStart+4], eax
|
||
add edi, file_in_7z.size
|
||
jmp .getfoldersloop
|
||
.getfoldersdone:
|
||
pop eax eax eax
|
||
mov ebp, [hOut]
|
||
mov esi, [ebp+handle_7z.folders]
|
||
xor ebx, ebx
|
||
cmp ebx, [ebp+handle_7z.numFolders]
|
||
jae .getoffsdone
|
||
.getoffsloop:
|
||
lodsd
|
||
test ebx, ebx
|
||
jnz .getoffs2
|
||
mov edx, dword [_7z.StreamsInfo.dataOffset]
|
||
mov dword [eax+_7z.StreamsInfo.packOffset], edx
|
||
mov edx, dword [_7z.StreamsInfo.dataOffset+4]
|
||
mov dword [eax+_7z.StreamsInfo.packOffset+4], edx
|
||
jmp .getoffscont
|
||
.getoffs2:
|
||
mov ecx, [esi-8]
|
||
mov edx, dword [ecx+_7z.StreamsInfo.packOffset]
|
||
mov dword [eax+_7z.StreamsInfo.packOffset], edx
|
||
mov edx, dword [ecx+_7z.StreamsInfo.packOffset+4]
|
||
mov dword [eax+_7z.StreamsInfo.packOffset+4], edx
|
||
mov edi, [ecx+_7z.StreamsInfo.startPackedStream]
|
||
mov ecx, [ecx+_7z.StreamsInfo.numPackedStreams]
|
||
push ecx
|
||
add ecx, edi
|
||
cmp ecx, [ebp+handle_7z.numPackStreams]
|
||
ja return.err
|
||
pop ecx
|
||
shl edi, 3
|
||
add edi, [ebp+handle_7z.packSizes]
|
||
@@:
|
||
dec ecx
|
||
js @f
|
||
mov edx, [edi]
|
||
add dword [eax+_7z.StreamsInfo.packOffset], edx
|
||
mov edx, [edi+4]
|
||
adc dword [eax+_7z.StreamsInfo.packOffset+4], edx
|
||
add edi, 8
|
||
jmp @b
|
||
@@:
|
||
.getoffscont:
|
||
inc ebx
|
||
cmp ebx, [ebp+handle_7z.numFolders]
|
||
jb .getoffsloop
|
||
.getoffsdone:
|
||
mov edx, [hOut]
|
||
mov ebx, [edx+handle_7z.NumFiles]
|
||
lea edi, [edx+handle_7z.root.subfolders]
|
||
add edx, handle_7z.basesize
|
||
push file_in_7z.size
|
||
call init_file_links
|
||
mov eax, [hOut]
|
||
and [eax+handle_7z.curdir], 0 ; set root directory
|
||
mov esi, [inStream]
|
||
mov [eax+handle_7z.host], esi
|
||
lea edi, [eax+handle_7z.host_datetime]
|
||
mov esi, [esp+12]
|
||
add esi, 8
|
||
mov ecx, 6
|
||
rep movsd
|
||
ret
|
||
|
||
_7z.CloseHandle:
|
||
mov esi, ecx
|
||
push [esi+handle_7z.host]
|
||
call [close]
|
||
mov ecx, [esi+handle_7z.packSizes]
|
||
call [pgfree]
|
||
mov ecx, [esi+handle_7z.folders]
|
||
call [pgfree]
|
||
mov ecx, [esi+handle_7z.names_buf]
|
||
call [pgfree]
|
||
mov ecx, [esi+handle_7z.last_context]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, esi
|
||
call [pgfree]
|
||
ret
|
||
|
||
close_7z:
|
||
mov ecx, [esp+4]
|
||
cmp ecx, empty_7z_handle
|
||
jz @f
|
||
call _7z.CloseHandle
|
||
@@:
|
||
ret 4
|
||
|
||
uglobal
|
||
align 4
|
||
_7z.unpacked dd ?
|
||
_7z.unpbuf rd 2*8
|
||
_7z.CurInStream dd ?
|
||
_7z.dataVector dd ?
|
||
_7z.dataVectorSize dd ?
|
||
_7z.FreeSubStreams dd ?
|
||
_7z.tmpVector dd ?
|
||
_7z.emptyStreams dd ?
|
||
_7z.numEmptyStreams dd ?
|
||
_7z.emptyFiles dd ?
|
||
_7z.antiFiles dd ?
|
||
endg
|
||
|
||
_7z.ReadAndDecodePackedStreams:
|
||
call _7z.ReadStreamsInfo
|
||
mov ecx, [_7z.StreamsInfo.numFolders]
|
||
test ecx, ecx
|
||
jz .ret2
|
||
push ecx
|
||
mov ecx, [_7z.StreamsInfo.SubStreamsSizes]
|
||
jecxz @f
|
||
call [pgfree]
|
||
and [_7z.StreamsInfo.SubStreamsSizes], 0
|
||
@@:
|
||
pop ecx
|
||
mov eax, _7z.unpbuf
|
||
cmp ecx, 8
|
||
jbe .1
|
||
shl ecx, 3
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov esi, eax
|
||
@@:
|
||
and dword [esi], 0
|
||
add esi, 4
|
||
sub ecx, 4
|
||
jnz @b
|
||
.1:
|
||
mov [_7z.unpacked], eax
|
||
mov esi, eax
|
||
xor ecx, ecx
|
||
mov [_7z.CurInStream], ecx
|
||
mov [error_proc], .error
|
||
mov [clear_proc], .clear
|
||
.loop:
|
||
mov eax, [_7z.StreamsInfo.folders]
|
||
mov ebx, [eax+ecx*4]
|
||
call _7z.GetUnPackSize
|
||
test edx, edx
|
||
jnz return.err
|
||
test eax, eax
|
||
js return.err
|
||
push ecx
|
||
mov [esi], eax
|
||
mov [_7z.decode.outBufferSize], eax
|
||
mov ecx, eax
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.err
|
||
mov [esi+4], eax
|
||
mov [_7z.decode.outBufferPtr], eax
|
||
push esi
|
||
call _7z.decode
|
||
pop esi
|
||
pop ecx
|
||
push ecx
|
||
mov eax, [_7z.StreamsInfo.unpackCRCsDefined]
|
||
cmp byte [eax+ecx], 0
|
||
jz @f
|
||
push esi
|
||
mov ecx, [esi]
|
||
mov esi, [esi+4]
|
||
call crc
|
||
pop esi
|
||
pop ecx
|
||
push ecx
|
||
mov edx, [_7z.StreamsInfo.unpackCRCs]
|
||
cmp [edx+ecx*4], eax
|
||
jnz return.err
|
||
@@:
|
||
add esi, 8
|
||
pop ecx
|
||
inc ecx
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jb .loop
|
||
.ret:
|
||
mov ecx, [_7z.StreamsInfo.folders]
|
||
call [pgfree]
|
||
mov [error_proc], .error2
|
||
mov [clear_proc], .clear2
|
||
.ret2:
|
||
mov ecx, [_7z.StreamsInfo.packSizes]
|
||
call [pgfree]
|
||
ret
|
||
|
||
.error:
|
||
call .free
|
||
jmp _7z.ReadStreamsInfo.error
|
||
.clear:
|
||
call .free
|
||
jmp _7z.ReadStreamsInfo.clear
|
||
.error2:
|
||
call .free
|
||
jmp open_7z.header_error
|
||
.clear2:
|
||
call .free
|
||
jmp open_7z.clear
|
||
.free:
|
||
mov ebx, [_7z.StreamsInfo.numFolders]
|
||
.free2:
|
||
dec ebx
|
||
js @f
|
||
mov ecx, [_7z.unpacked]
|
||
mov ecx, [ecx+ebx*8+4]
|
||
call [pgfree]
|
||
jmp .free2
|
||
@@:
|
||
mov ecx, [_7z.unpacked]
|
||
cmp ecx, _7z.unpbuf
|
||
jz @f
|
||
call [pgfree]
|
||
@@:
|
||
ret
|
||
|
||
_7z.GetUnPackSize:
|
||
xor edx, edx
|
||
mov eax, [ebx+_7z.StreamsInfo.numOutStreams]
|
||
test eax, eax
|
||
jz .ret
|
||
.scan:
|
||
dec eax
|
||
js return.err
|
||
push ecx
|
||
mov ecx, [ebx+_7z.StreamsInfo.numBindPairs]
|
||
mov edx, [ebx+_7z.StreamsInfo.bindPairs]
|
||
@@:
|
||
add edx, 8
|
||
dec ecx
|
||
js .found
|
||
cmp [edx-4], eax
|
||
jnz @b
|
||
pop ecx
|
||
jmp .scan
|
||
.found:
|
||
mov [ebx+_7z.StreamsInfo.mainOutStream], eax
|
||
mov ecx, [ebx+_7z.StreamsInfo.unpackSizes]
|
||
mov edx, [ecx+eax*8+4]
|
||
mov eax, [ecx+eax*8]
|
||
pop ecx
|
||
.ret:
|
||
ret
|
||
|
||
uglobal
|
||
align 4
|
||
_7z.StreamsInfo:
|
||
.numPackStreams dd ?
|
||
.packSizes dd ? ; 8 bytes per item
|
||
.numFolders dd ?
|
||
.unpackCRCsDefined dd ?
|
||
.unpackCRCs dd ?
|
||
.folders dd ?
|
||
.folders.size dd ?
|
||
.folders.alloc dd ?
|
||
.dataOffset dq ?
|
||
.packCRCsDefined dd ? ; 1 byte per item
|
||
.packCRCs dd ? ; 4 bytes per item
|
||
virtual at 0
|
||
.numCoders dd ?
|
||
.bindPairs dd ?
|
||
.numBindPairs dd ?
|
||
.packedStreams dd ?
|
||
.numPackedStreams dd ?
|
||
.startPackedStream dd ?
|
||
.numOutStreams dd ?
|
||
.unpackSizes dd ?
|
||
.mainOutStream dd ?
|
||
.numUnPackStreams dd ?
|
||
.packOffset dq ?
|
||
.fsz = $
|
||
end virtual
|
||
.numSubStreams dd ?
|
||
.SubStreamsSizes dd ?
|
||
.SubStreamsCRCsDefined dd ?
|
||
.SubStreamsCRCs dd ?
|
||
.tmpSubStreamsCRCsDefined dd ?
|
||
.tmpSubStreamsCRCs dd ?
|
||
endg
|
||
|
||
_7z.SkipData:
|
||
call _7z.ReadNumber
|
||
call _7z.SkipSize
|
||
ret
|
||
|
||
_7z.WaitAttribute:
|
||
call _7z.ReadNumber
|
||
cmp eax, ecx
|
||
jz @f
|
||
test eax, eax
|
||
jz return.err
|
||
call _7z.SkipData
|
||
jmp _7z.WaitAttribute
|
||
@@:
|
||
ret
|
||
|
||
_7z.ReadBoolVector2:
|
||
; in: ebx->vector, ecx=size
|
||
call _7z.ReadByte
|
||
test al, al
|
||
jz _7z.ReadBoolVector
|
||
push ebx ecx
|
||
jecxz .ret
|
||
@@:
|
||
mov byte [ebx], 1
|
||
inc ebx
|
||
loop @b
|
||
.ret:
|
||
pop ecx ebx
|
||
ret
|
||
|
||
_7z.ReadBoolVector:
|
||
push ebx ecx
|
||
jecxz .ret
|
||
xor eax, eax
|
||
.1:
|
||
add al, al
|
||
jnz @f
|
||
call _7z.ReadByte
|
||
stc
|
||
adc al, al
|
||
@@:
|
||
setc byte [ebx]
|
||
inc ebx
|
||
loop .1
|
||
.ret:
|
||
pop ecx ebx
|
||
ret
|
||
|
||
_7z.ReadHashDigests:
|
||
; in: ebx->bool vector, esi->crc, ecx=size
|
||
call _7z.ReadBoolVector2
|
||
jecxz .ret
|
||
.1:
|
||
xor eax, eax
|
||
cmp byte [ebx], al
|
||
jz @f
|
||
call _7z.ReadDword
|
||
@@:
|
||
mov [esi], eax
|
||
add esi, 4
|
||
inc ebx
|
||
loop .1
|
||
.ret:
|
||
ret
|
||
|
||
uglobal
|
||
_7z.saved_edi dd ?
|
||
_7z.saved_edi_end dd ?
|
||
endg
|
||
|
||
_7z.SwitchStream:
|
||
mov eax, [bufend]
|
||
mov [_7z.saved_edi_end], eax
|
||
call _7z.ReadByte
|
||
test al, al
|
||
jnz @f
|
||
ret
|
||
@@:
|
||
call _7z.ReadNum
|
||
mov [_7z.saved_edi], edi
|
||
cmp eax, [_7z.dataVectorSize]
|
||
jae return.err
|
||
shl eax, 3
|
||
add eax, [_7z.dataVector]
|
||
mov edi, [eax+4]
|
||
mov eax, [eax]
|
||
add eax, edi
|
||
mov [bufend], eax
|
||
ret
|
||
|
||
_7z.UnswitchStream:
|
||
mov eax, [_7z.saved_edi_end]
|
||
cmp eax, [bufend]
|
||
jnz @f
|
||
ret
|
||
@@:
|
||
mov [bufend], eax
|
||
mov edi, [_7z.saved_edi]
|
||
@@:
|
||
ret
|
||
|
||
; 6 <EFBFBD>ணࠬ<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> 㬠, <EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>⠫<EFBFBD><EFBFBD><EFBFBD> 5.
|
||
|
||
_7z.ReadStreamsInfo:
|
||
xor eax, eax
|
||
mov [_7z.StreamsInfo.numPackStreams], eax
|
||
mov [_7z.StreamsInfo.packSizes], eax
|
||
mov [_7z.StreamsInfo.numFolders], eax
|
||
mov [_7z.StreamsInfo.folders], eax
|
||
mov [_7z.StreamsInfo.numSubStreams], eax
|
||
mov [_7z.StreamsInfo.SubStreamsSizes], eax
|
||
mov [_7z.StreamsInfo.tmpSubStreamsCRCsDefined], eax
|
||
mov [error_proc], .error
|
||
mov [clear_proc], .clear
|
||
.mainloop:
|
||
call _7z.ReadNum
|
||
test eax, eax
|
||
jz @b
|
||
cmp eax, kSubStreamsInfo
|
||
jz .SubStreamsInfo
|
||
cmp eax, kUnPackInfo
|
||
jz .UnpackInfo
|
||
cmp eax, kPackInfo
|
||
jnz return.err
|
||
|
||
.PackInfo:
|
||
cmp [_7z.StreamsInfo.numPackStreams], 0
|
||
jnz return.err
|
||
call _7z.ReadNumber
|
||
add eax, 0x20
|
||
adc edx, 0
|
||
mov dword [_7z.StreamsInfo.dataOffset], eax
|
||
mov dword [_7z.StreamsInfo.dataOffset+4], edx
|
||
call _7z.ReadNum
|
||
mov [_7z.StreamsInfo.numPackStreams], eax
|
||
mov ecx, kSize
|
||
call _7z.WaitAttribute
|
||
mov ecx, [_7z.StreamsInfo.numPackStreams]
|
||
imul ecx, 8+1+4
|
||
jecxz .nostreams1
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov [_7z.StreamsInfo.packSizes], eax
|
||
mov ecx, [_7z.StreamsInfo.numPackStreams]
|
||
push eax
|
||
lea eax, [eax+ecx*8]
|
||
mov [_7z.StreamsInfo.packCRCsDefined], eax
|
||
mov ebx, eax
|
||
add eax, ecx
|
||
mov [_7z.StreamsInfo.packCRCs], eax
|
||
@@:
|
||
mov byte [ebx], 0
|
||
inc ebx
|
||
loop @b
|
||
pop eax
|
||
.nostreams1:
|
||
mov ecx, [_7z.StreamsInfo.numPackStreams]
|
||
jecxz .noloop1
|
||
mov esi, eax
|
||
@@:
|
||
call _7z.ReadNumber
|
||
mov [esi], eax
|
||
mov [esi+4], edx
|
||
add esi, 8
|
||
loop @b
|
||
.noloop1:
|
||
call _7z.ReadNum
|
||
test eax, eax
|
||
jz .mainloop
|
||
cmp eax, kCRC
|
||
jz .packInfo.crc
|
||
call _7z.SkipData
|
||
jmp .noloop1
|
||
.packInfo.crc:
|
||
mov esi, [_7z.StreamsInfo.packCRCs]
|
||
mov ebx, [_7z.StreamsInfo.packCRCsDefined]
|
||
mov ecx, [_7z.StreamsInfo.numPackStreams]
|
||
call _7z.ReadHashDigests
|
||
jmp .noloop1
|
||
|
||
.UnpackInfo:
|
||
cmp [_7z.StreamsInfo.folders], 0
|
||
jnz return.err
|
||
mov ecx, kFolder
|
||
call _7z.WaitAttribute
|
||
call _7z.ReadNum
|
||
mov ecx, eax
|
||
mov [_7z.StreamsInfo.numFolders], eax
|
||
call _7z.SwitchStream
|
||
test ecx, ecx
|
||
jz .nofolders
|
||
push ecx
|
||
mov ecx, 0x1000
|
||
and [_7z.StreamsInfo.folders.size], 0
|
||
mov [_7z.StreamsInfo.folders.alloc], ecx
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov [_7z.StreamsInfo.folders], eax
|
||
pop ecx
|
||
lea ecx, [ecx*9]
|
||
call .folders_alloc
|
||
xor ecx, ecx
|
||
.folderloop:
|
||
mov eax, [_7z.StreamsInfo.folders]
|
||
push [_7z.StreamsInfo.folders.size]
|
||
pop dword [eax+ecx*4]
|
||
push ebp
|
||
mov [_ebp], ebp
|
||
push ecx
|
||
mov ecx, _7z.StreamsInfo.fsz
|
||
call .folders_alloc
|
||
mov ebp, eax
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
call _7z.ReadNum
|
||
mov [ebp+_7z.StreamsInfo.numCoders], eax
|
||
test eax, eax
|
||
jz return.err
|
||
mov ecx, eax
|
||
push ecx
|
||
shl ecx, 2
|
||
sub ebp, [_7z.StreamsInfo.folders]
|
||
call .folders_alloc
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
pop ecx
|
||
add eax, [_7z.StreamsInfo.folders]
|
||
@@:
|
||
and dword [eax], 0
|
||
add eax, 4
|
||
loop @b
|
||
push 0 ; numOutStreams
|
||
push 0 ; numInStreams
|
||
; [folders] = array of pointers to coders info
|
||
; Format of coder info:
|
||
; dd NextCoder
|
||
; db MethodID.IDSize
|
||
; times IDSize db MethodID.ID
|
||
; dd NumInStreams
|
||
; dd NumOutStreams
|
||
; dd PropSize
|
||
; times PropSize db Properties
|
||
xor esi, esi
|
||
.coders_loop:
|
||
call _7z.ReadByte
|
||
mov dl, al
|
||
and eax, 0xF
|
||
lea ecx, [eax+17]
|
||
sub ebp, [_7z.StreamsInfo.folders]
|
||
call .folders_alloc
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
push eax
|
||
mov ecx, [_7z.StreamsInfo.folders]
|
||
lea ebx, [ebp+esi*4+_7z.StreamsInfo.fsz]
|
||
@@:
|
||
cmp dword [ebx], 0
|
||
jz @f
|
||
mov ebx, [ebx]
|
||
add ebx, ecx
|
||
jmp @b
|
||
@@:
|
||
mov [ebx], eax
|
||
pop ebx
|
||
add ebx, ecx
|
||
and dword [ebx], 0
|
||
add ebx, 4
|
||
mov ecx, edx
|
||
and ecx, 0xF
|
||
mov byte [ebx], cl
|
||
inc ebx
|
||
jecxz .2
|
||
@@:
|
||
call _7z.ReadByte
|
||
mov byte [ebx], al
|
||
inc ebx
|
||
loop @b
|
||
.2:
|
||
test dl, 10h
|
||
jnz .coder_multiple_streams
|
||
mov dword [ebx], 1
|
||
mov dword [ebx+4], 1
|
||
inc dword [esp]
|
||
inc dword [esp+4]
|
||
jmp @f
|
||
.coder_multiple_streams:
|
||
call _7z.ReadNum
|
||
mov [ebx], eax
|
||
add dword [esp], eax
|
||
call _7z.ReadNum
|
||
mov [ebx+4], eax
|
||
add dword [esp+4], eax
|
||
; all currently defined 7z coders have 1 unpacked stream
|
||
; moreover, all reasonable coders have 1 unpacked stream
|
||
; so assume 1 output stream for unpacker - this simplifies decoding procedure
|
||
cmp eax, 1
|
||
jnz return.err
|
||
@@:
|
||
and dword [ebx+8], 0
|
||
add ebx, 12
|
||
test dl, 20h
|
||
jz .coder_no_properties
|
||
call _7z.ReadNum
|
||
test eax, eax
|
||
jz .coder_no_properties
|
||
mov [ebx-4], eax
|
||
mov ecx, eax
|
||
sub ebx, [_7z.StreamsInfo.folders]
|
||
sub ebp, [_7z.StreamsInfo.folders]
|
||
call .folders_alloc
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
add ebx, [_7z.StreamsInfo.folders]
|
||
@@:
|
||
call _7z.ReadByte
|
||
mov [ebx], al
|
||
inc ebx
|
||
loop @b
|
||
.coder_no_properties:
|
||
test dl, dl
|
||
js .coders_loop
|
||
inc esi
|
||
cmp esi, [ebp+_7z.StreamsInfo.numCoders]
|
||
jb .coders_loop
|
||
mov [ebp+_7z.StreamsInfo.numUnPackStreams], 1
|
||
mov eax, [esp+4]
|
||
dec eax
|
||
js return.err
|
||
mov [ebp+_7z.StreamsInfo.numBindPairs], eax
|
||
push eax
|
||
mov ecx, eax
|
||
shl ecx, 3
|
||
sub ebp, [_7z.StreamsInfo.folders]
|
||
call .folders_alloc
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
mov [ebp+_7z.StreamsInfo.bindPairs], eax
|
||
pop ecx
|
||
jecxz .noloop3
|
||
mov esi, eax
|
||
add esi, [_7z.StreamsInfo.folders]
|
||
@@:
|
||
call _7z.ReadNum
|
||
mov [esi], eax
|
||
cmp eax, [esp]
|
||
jae return.err
|
||
call _7z.ReadNum
|
||
mov [esi+4], eax
|
||
cmp eax, [esp+4]
|
||
jae return.err
|
||
add esi, 8
|
||
loop @b
|
||
.noloop3:
|
||
pop eax ; numInStreams
|
||
pop edx ; numOutStreams
|
||
mov [ebp+_7z.StreamsInfo.numOutStreams], edx
|
||
sub eax, edx
|
||
js return.err
|
||
inc eax
|
||
mov [ebp+_7z.StreamsInfo.numPackedStreams], eax
|
||
mov ecx, eax
|
||
push eax
|
||
shl ecx, 2
|
||
sub ebp, [_7z.StreamsInfo.folders]
|
||
call .folders_alloc
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
mov [ebp+_7z.StreamsInfo.packedStreams], eax
|
||
pop ecx
|
||
mov esi, eax
|
||
add esi, [_7z.StreamsInfo.folders]
|
||
cmp ecx, 1
|
||
jnz .multiplePackedStreams
|
||
mov ebx, [ebp+_7z.StreamsInfo.bindPairs]
|
||
add ebx, [_7z.StreamsInfo.folders]
|
||
push edx
|
||
xor ecx, ecx
|
||
.3:
|
||
push ebx
|
||
mov edx, [ebp+_7z.StreamsInfo.numBindPairs]
|
||
@@:
|
||
dec edx
|
||
js .5
|
||
cmp dword [ebx], ecx
|
||
jz .4
|
||
add ebx, 8
|
||
jmp @b
|
||
.4:
|
||
pop ebx
|
||
inc ecx
|
||
jmp .3
|
||
.5:
|
||
pop ebx
|
||
pop edx
|
||
mov [esi], ecx
|
||
jmp .commonPackedStreams
|
||
.multiplePackedStreams:
|
||
call _7z.ReadNum
|
||
mov [esi], eax
|
||
add esi, 4
|
||
loop .multiplePackedStreams
|
||
.commonPackedStreams:
|
||
mov ecx, edx
|
||
shl ecx, 3
|
||
sub ebp, [_7z.StreamsInfo.folders]
|
||
call .folders_alloc
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
mov [ebp+_7z.StreamsInfo.unpackSizes], eax
|
||
pop ecx
|
||
xor edx, edx
|
||
jecxz @f
|
||
mov eax, [_7z.StreamsInfo.folders]
|
||
mov eax, [eax+(ecx-1)*4]
|
||
add eax, [_7z.StreamsInfo.folders]
|
||
mov edx, [eax+_7z.StreamsInfo.numPackedStreams]
|
||
add edx, [eax+_7z.StreamsInfo.startPackedStream]
|
||
@@:
|
||
mov [ebp+_7z.StreamsInfo.startPackedStream], edx
|
||
pop ebp
|
||
inc ecx
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jb .folderloop
|
||
.nofolders:
|
||
call _7z.UnswitchStream
|
||
mov ecx, kCodersUnPackSize
|
||
call _7z.WaitAttribute
|
||
xor ecx, ecx
|
||
.6:
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jae .7
|
||
mov eax, [_7z.StreamsInfo.folders]
|
||
push ebp
|
||
mov ebp, [eax+ecx*4]
|
||
add ebp, eax
|
||
mov esi, [ebp+_7z.StreamsInfo.numOutStreams]
|
||
mov ebp, [ebp+_7z.StreamsInfo.unpackSizes]
|
||
add ebp, [_7z.StreamsInfo.folders]
|
||
@@:
|
||
call _7z.ReadNumber
|
||
mov dword [ebp], eax
|
||
mov dword [ebp+4], edx
|
||
add ebp, 8
|
||
dec esi
|
||
jnz @b
|
||
pop ebp
|
||
inc ecx
|
||
jmp .6
|
||
.7:
|
||
; convert all relative addresses to pointers
|
||
xor ecx, ecx
|
||
mov edx, [_7z.StreamsInfo.folders]
|
||
.8:
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jae .9
|
||
lea eax, [edx+ecx*4]
|
||
add [eax], edx
|
||
mov eax, [eax]
|
||
add [eax+_7z.StreamsInfo.bindPairs], edx
|
||
add [eax+_7z.StreamsInfo.packedStreams], edx
|
||
add [eax+_7z.StreamsInfo.unpackSizes], edx
|
||
mov ebx, [eax+_7z.StreamsInfo.numCoders]
|
||
add eax, _7z.StreamsInfo.fsz
|
||
inc ecx
|
||
.11:
|
||
dec ebx
|
||
js .8
|
||
push eax
|
||
@@:
|
||
cmp dword [eax], 0
|
||
jz @f
|
||
add [eax], edx
|
||
mov eax, [eax]
|
||
jmp @b
|
||
@@:
|
||
pop eax
|
||
add eax, 4
|
||
jmp .11
|
||
.9:
|
||
; done
|
||
mov eax, [_7z.StreamsInfo.numFolders]
|
||
lea edx, [edx+eax*4]
|
||
mov [_7z.StreamsInfo.unpackCRCsDefined], edx
|
||
add edx, eax
|
||
mov [_7z.StreamsInfo.unpackCRCs], edx
|
||
@@:
|
||
call _7z.ReadNum
|
||
test eax, eax
|
||
jz .mainloop
|
||
cmp eax, kCRC
|
||
jz .unpackInfo.crc
|
||
call _7z.SkipData
|
||
jmp @b
|
||
.unpackInfo.crc:
|
||
mov esi, [_7z.StreamsInfo.unpackCRCs]
|
||
mov ebx, [_7z.StreamsInfo.unpackCRCsDefined]
|
||
mov ecx, [_7z.StreamsInfo.numFolders]
|
||
call _7z.ReadHashDigests
|
||
jmp @b
|
||
|
||
.SubStreamsInfo:
|
||
cmp [_7z.StreamsInfo.numFolders], 0
|
||
jz return.err
|
||
cmp [_7z.StreamsInfo.numSubStreams], 0
|
||
jnz return.err
|
||
mov ebx, [_7z.StreamsInfo.folders]
|
||
.ssloop1:
|
||
call _7z.ReadNum
|
||
cmp eax, kNumUnPackStream
|
||
jz .NumUnPackStream
|
||
cmp eax, kCRC
|
||
jz .break1
|
||
cmp eax, kSize
|
||
jz .break1
|
||
test eax, eax
|
||
jz .break1
|
||
call _7z.SkipData
|
||
jmp .ssloop1
|
||
.NumUnPackStream:
|
||
xor ecx, ecx
|
||
@@:
|
||
call _7z.ReadNum
|
||
mov edx, [ebx+ecx*4]
|
||
mov [edx+_7z.StreamsInfo.numUnPackStreams], eax
|
||
inc ecx
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jb @b
|
||
jmp .ssloop1
|
||
.break1:
|
||
; calculate number of substreams and number of defined digests
|
||
xor ecx, ecx
|
||
xor ebp, ebp
|
||
push 0
|
||
push eax
|
||
xor eax, eax
|
||
.ssloop2:
|
||
mov edx, [ebx+ecx*4]
|
||
mov edx, [edx+_7z.StreamsInfo.numUnPackStreams]
|
||
cmp edx, 1
|
||
jz @f
|
||
inc ebp
|
||
@@:
|
||
add eax, edx
|
||
jc return.err
|
||
cmp edx, 1
|
||
jnz @f
|
||
push eax
|
||
mov eax, [_7z.StreamsInfo.unpackCRCsDefined]
|
||
cmp byte [eax+ecx], 0
|
||
pop eax
|
||
jz @f
|
||
xor edx, edx
|
||
@@:
|
||
add [esp+4], edx
|
||
inc ecx
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jb .ssloop2
|
||
mov [_7z.StreamsInfo.numSubStreams], eax
|
||
imul ecx, eax, 4+8+1
|
||
jecxz .noss1
|
||
push eax
|
||
call [pgalloc]
|
||
pop ecx
|
||
test eax, eax
|
||
jz return.clear
|
||
mov [_7z.StreamsInfo.SubStreamsSizes], eax
|
||
lea eax, [eax+ecx*8]
|
||
mov [_7z.StreamsInfo.SubStreamsCRCsDefined], eax
|
||
add eax, ecx
|
||
mov [_7z.StreamsInfo.SubStreamsCRCs], eax
|
||
@@:
|
||
dec eax
|
||
mov byte [eax], 0
|
||
loop @b
|
||
.noss1:
|
||
mov ecx, [esp+4]
|
||
jecxz @f
|
||
imul ecx, 4+1
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov [_7z.StreamsInfo.tmpSubStreamsCRCsDefined], eax
|
||
add eax, [esp+4]
|
||
mov [_7z.StreamsInfo.tmpSubStreamsCRCs], eax
|
||
@@:
|
||
test ebp, ebp
|
||
jz @f
|
||
cmp dword [esp], kSize
|
||
jnz return.err
|
||
@@:
|
||
xor ecx, ecx
|
||
mov ebp, [_7z.StreamsInfo.SubStreamsSizes]
|
||
.ssloop3:
|
||
mov ebx, [_7z.StreamsInfo.folders]
|
||
mov ebx, [ebx+ecx*4]
|
||
mov eax, [ebx+_7z.StreamsInfo.numUnPackStreams]
|
||
dec eax
|
||
js .sscont3
|
||
push 0
|
||
push 0
|
||
@@:
|
||
dec eax
|
||
js @f
|
||
push eax
|
||
call _7z.ReadNumber
|
||
mov [ebp], eax
|
||
mov [ebp+4], edx
|
||
add ebp, 8
|
||
add [esp+4], eax
|
||
adc [esp+8], edx
|
||
jc return.err
|
||
pop eax
|
||
jmp @b
|
||
@@:
|
||
call _7z.GetUnPackSize
|
||
sub eax, [esp]
|
||
sbb edx, [esp+4]
|
||
jc return.err
|
||
mov [ebp], eax
|
||
mov [ebp+4], edx
|
||
add ebp, 8
|
||
add esp, 8
|
||
.sscont3:
|
||
inc ecx
|
||
cmp ecx, [_7z.StreamsInfo.numFolders]
|
||
jb .ssloop3
|
||
pop eax
|
||
cmp eax, kSize
|
||
jnz @f
|
||
call _7z.ReadNum
|
||
@@:
|
||
cmp eax, kCRC
|
||
jz .sscrc
|
||
test eax, eax
|
||
jz .ssend
|
||
call _7z.SkipData
|
||
.ssloop4:
|
||
call _7z.ReadNum
|
||
jmp @b
|
||
.sscrc:
|
||
pop ecx
|
||
push ecx
|
||
mov ebx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined]
|
||
mov esi, [_7z.StreamsInfo.tmpSubStreamsCRCs]
|
||
call _7z.ReadHashDigests
|
||
xor ecx, ecx ; index in out
|
||
xor edx, edx ; index in tmp
|
||
push -1
|
||
pop ebx ; index in folders
|
||
.ssloop5:
|
||
inc ebx
|
||
cmp ebx, [_7z.StreamsInfo.numFolders]
|
||
jae .ssloop4
|
||
mov eax, [_7z.StreamsInfo.folders]
|
||
mov ebp, [eax+ebx*4]
|
||
mov ebp, [ebp+_7z.StreamsInfo.numUnPackStreams]
|
||
cmp ebp, 1
|
||
jnz @f
|
||
mov eax, [_7z.StreamsInfo.unpackCRCsDefined]
|
||
cmp byte [eax+ebx], 0
|
||
jz @f
|
||
mov esi, [_7z.StreamsInfo.SubStreamsCRCsDefined]
|
||
mov byte [esi+ecx], 1
|
||
mov esi, [_7z.StreamsInfo.unpackCRCs]
|
||
mov eax, [esi+ebx*4]
|
||
mov esi, [_7z.StreamsInfo.SubStreamsCRCs]
|
||
mov [esi+ecx*4], eax
|
||
inc ecx
|
||
jmp .ssloop5
|
||
@@:
|
||
dec ebp
|
||
js .ssloop5
|
||
mov esi, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined]
|
||
mov al, [esi+edx]
|
||
mov esi, [_7z.StreamsInfo.SubStreamsCRCsDefined]
|
||
mov [esi+ecx], al
|
||
mov esi, [_7z.StreamsInfo.tmpSubStreamsCRCs]
|
||
mov eax, [esi+edx*4]
|
||
mov esi, [_7z.StreamsInfo.SubStreamsCRCs]
|
||
mov [esi+ecx*4], eax
|
||
inc edx
|
||
inc ecx
|
||
jmp @b
|
||
.ssend:
|
||
mov ecx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined]
|
||
call [pgfree]
|
||
and [_7z.StreamsInfo.tmpSubStreamsCRCsDefined], 0
|
||
pop ecx
|
||
jmp .mainloop
|
||
|
||
.folders_alloc:
|
||
push ecx
|
||
add ecx, [_7z.StreamsInfo.folders.size]
|
||
sub ecx, [_7z.StreamsInfo.folders.alloc]
|
||
jbe @f
|
||
push edx
|
||
or ecx, 0xFFF
|
||
inc ecx
|
||
add ecx, [_7z.StreamsInfo.folders.alloc]
|
||
mov [_7z.StreamsInfo.folders.alloc], ecx
|
||
mov edx, [_7z.StreamsInfo.folders]
|
||
call [pgrealloc]
|
||
pop edx
|
||
test eax, eax
|
||
jz return.clear
|
||
mov [_7z.StreamsInfo.folders], eax
|
||
@@:
|
||
pop ecx
|
||
mov eax, [_7z.StreamsInfo.folders.size]
|
||
add [_7z.StreamsInfo.folders.size], ecx
|
||
ret
|
||
|
||
.error:
|
||
mov ecx, [_7z.StreamsInfo.packSizes]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.StreamsInfo.folders]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.StreamsInfo.SubStreamsSizes]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
jmp open_7z.header_error
|
||
.clear:
|
||
mov ecx, [_7z.StreamsInfo.packSizes]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.StreamsInfo.folders]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.StreamsInfo.SubStreamsSizes]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.StreamsInfo.tmpSubStreamsCRCsDefined]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
jmp open_7z.clear
|
||
|
||
uglobal
|
||
align 4
|
||
_7z.decode.mainbuf dd ?
|
||
_7z.decode.pStreams dd ?
|
||
_7z.decode.pStreams_def rd 8
|
||
_7z.decode.outBufferSize dd ?
|
||
_7z.decode.outBufferPtr dd ?
|
||
_7z.decode.outBufferRead dd ?
|
||
endg
|
||
|
||
virtual at 0
|
||
streamInfo:
|
||
.fullSize dq ?
|
||
.fillBuf dd ? ; procedure which fills the buffer
|
||
.bufSize dd ?
|
||
.bufDataLen dd ?
|
||
.bufPtr dd ?
|
||
.size = $
|
||
end virtual
|
||
|
||
_7z.decode:
|
||
; in: ebx->folder, outBufferSize, outBufferPtr
|
||
; N.B. We assume that every coder has 1 output (unpacked) stream.
|
||
and [.mainbuf], 0
|
||
mov [.pStreams], .pStreams_def
|
||
mov [error_proc], .error
|
||
mov [clear_proc], .clear
|
||
call .init
|
||
and [.outBufferRead], 0
|
||
@@:
|
||
push edi
|
||
mov eax, [ebx+_7z.StreamsInfo.mainOutStream]
|
||
mov esi, [.pStreams]
|
||
mov eax, [esi+eax*4]
|
||
call fillBuf
|
||
mov ecx, [eax+streamInfo.bufDataLen]
|
||
mov esi, [eax+streamInfo.bufPtr]
|
||
mov edi, [.outBufferPtr]
|
||
add edi, [.outBufferRead]
|
||
add [.outBufferRead], ecx
|
||
mov edx, ecx
|
||
shr ecx, 2
|
||
rep movsd
|
||
mov ecx, edx
|
||
and ecx, 3
|
||
rep movsb
|
||
pop edi
|
||
mov eax, [.outBufferRead]
|
||
cmp eax, [.outBufferSize]
|
||
jb @b
|
||
mov ecx, [.pStreams]
|
||
cmp ecx, .pStreams_def
|
||
jz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [.mainbuf]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov [error_proc], _7z.ReadAndDecodePackedStreams.error
|
||
mov [clear_proc], _7z.ReadAndDecodePackedStreams.clear
|
||
ret
|
||
|
||
.error:
|
||
mov ecx, [.pStreams]
|
||
cmp ecx, .pStreams_def
|
||
jz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [.mainbuf]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
jmp _7z.ReadAndDecodePackedStreams.error
|
||
.clear:
|
||
mov ecx, [.pStreams]
|
||
cmp ecx, .pStreams_def
|
||
jz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [.mainbuf]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
jmp _7z.ReadAndDecodePackedStreams.clear
|
||
|
||
.init:
|
||
; We use stack to keep some information on streams,
|
||
; to avoid stack overflow we limit possible number of coders.
|
||
; Anyway, in real life maximum number of coders is 5
|
||
; (password protection filter + BCJ2 filter + 3 LZMA coders),
|
||
; from command line user can define more coders, but
|
||
; archive with, say, 32 coders is most likely bogus.
|
||
cmp [ebx+_7z.StreamsInfo.numCoders], 128
|
||
ja return.err
|
||
; allocate space for streams info array
|
||
mov eax, .pStreams_def
|
||
mov ecx, [ebx+_7z.StreamsInfo.numPackedStreams]
|
||
add ecx, [ebx+_7z.StreamsInfo.numCoders]
|
||
cmp ecx, 8
|
||
jbe @f
|
||
shl ecx, 2
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
@@:
|
||
mov [.pStreams], eax
|
||
; calculate size of buffers required for decoders
|
||
xor ecx, ecx
|
||
push ecx
|
||
mov ebp, [ebx+_7z.StreamsInfo.unpackSizes]
|
||
.calcbufsz:
|
||
; LZMA decoder: method ID = [size=03] 03 01 01, NumInStreams = NumOutStreams = 1
|
||
mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4]
|
||
call _7z.GetCoder
|
||
jnc .known_id
|
||
.unknown_method_id:
|
||
movzx esi, byte [eax+4]
|
||
lea ecx, [eax+5]
|
||
mov ebx, aUnknownMethod.z
|
||
@@:
|
||
dec esi
|
||
js @f
|
||
mov byte [ebx], ' '
|
||
inc ebx
|
||
mov al, [ecx]
|
||
push eax
|
||
shr al, 4
|
||
cmp al, 10
|
||
sbb al, 69h
|
||
das
|
||
mov [ebx], al
|
||
inc ebx
|
||
pop eax
|
||
and al, 0xF
|
||
cmp al, 10
|
||
sbb al, 69h
|
||
das
|
||
mov [ebx], al
|
||
inc ebx
|
||
inc ecx
|
||
jmp @b
|
||
@@:
|
||
mov byte [ebx], 0
|
||
push ContinueBtn
|
||
push 1
|
||
push aUnknownMethod_ptr
|
||
push 1
|
||
call [SayErr]
|
||
jmp return.clear
|
||
iglobal
|
||
if lang eq ru
|
||
aUnknownMethod db '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>⮤:'
|
||
else
|
||
aUnknownMethod db 'Unknown method:'
|
||
end if
|
||
.z:
|
||
times 16*3+1 db 0
|
||
aUnknownMethod_ptr dd aUnknownMethod
|
||
endg
|
||
.known_id:
|
||
movzx esi, byte [eax+4]
|
||
lea esi, [esi+eax+17]
|
||
call [_7z.GetBufSizeTable+edx*4]
|
||
add eax, 3
|
||
and al, not 3
|
||
add [esp], eax
|
||
jc .nomem
|
||
cmp dword [ebp+4], 0
|
||
jnz @f
|
||
cmp dword [ebp], edx
|
||
jae @f
|
||
mov edx, [ebp]
|
||
@@:
|
||
add edx, 0xF
|
||
and edx, not 0xF
|
||
add [esp], edx
|
||
jc .nomem
|
||
add ebp, 8
|
||
inc ecx
|
||
cmp ecx, [ebx+_7z.StreamsInfo.numCoders]
|
||
jb .calcbufsz
|
||
; add 4 pages for each of not binded input streams
|
||
mov ecx, [ebx+_7z.StreamsInfo.numPackedStreams]
|
||
shl ecx, 14
|
||
add [esp], ecx
|
||
;; calculate free RAM
|
||
; call [getfreemem]
|
||
; sub eax, 64 ; keep at least 64 Kb of free RAM
|
||
; jbe .nomem
|
||
; pop ecx
|
||
; push ecx
|
||
; add ecx, 0x3FF
|
||
; shr ecx, 10
|
||
; cmp eax, ecx
|
||
; jae .memok
|
||
jmp .memok
|
||
.nomem:
|
||
push ContinueBtn
|
||
push 1
|
||
push aNoFreeRam_ptr
|
||
push 1
|
||
call [SayErr]
|
||
jmp return.clear
|
||
.memok:
|
||
; allocate streamInfos
|
||
pop ecx
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov [.mainbuf], eax
|
||
; initialize streamInfos for decoders
|
||
xor ecx, ecx
|
||
mov ebp, [ebx+_7z.StreamsInfo.unpackSizes]
|
||
mov edx, [.pStreams]
|
||
.init1:
|
||
mov [edx], eax
|
||
add edx, 4
|
||
push edx
|
||
push dword [ebp]
|
||
pop dword [eax]
|
||
push dword [ebp+4]
|
||
pop dword [eax+4]
|
||
and dword [eax+streamInfo.size], 0
|
||
push eax
|
||
mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4]
|
||
call _7z.GetCoder
|
||
movzx esi, byte [eax+4]
|
||
lea esi, [esi+eax+17]
|
||
call [_7z.GetBufSizeTable+edx*4]
|
||
pop esi
|
||
push esi
|
||
add eax, 3
|
||
and al, not 3
|
||
add [esp], eax
|
||
pop [esi+streamInfo.bufPtr]
|
||
push [esi+streamInfo.bufPtr]
|
||
cmp dword [ebp+4], 0
|
||
jnz @f
|
||
cmp dword [ebp], edx
|
||
jae @f
|
||
mov edx, [ebp]
|
||
@@:
|
||
add edx, 0xF
|
||
and edx, not 0xF
|
||
mov [esi+streamInfo.bufSize], edx
|
||
and [esi+streamInfo.bufDataLen], 0
|
||
pop eax
|
||
add eax, edx
|
||
pop edx
|
||
add ebp, 8
|
||
inc ecx
|
||
cmp ecx, [ebx+_7z.StreamsInfo.numCoders]
|
||
jb .init1
|
||
; initialize streamInfos for input streams
|
||
xor ecx, ecx
|
||
@@:
|
||
mov [edx], eax
|
||
add edx, 4
|
||
mov esi, [_7z.CurInStream]
|
||
inc [_7z.CurInStream]
|
||
shl esi, 3
|
||
add esi, [_7z.StreamsInfo.packSizes]
|
||
push dword [esi]
|
||
pop dword [eax]
|
||
push dword [esi+4]
|
||
pop dword [eax+4]
|
||
mov [eax+streamInfo.fillBuf], fillBufFromInStream
|
||
lea esi, [eax+streamInfo.size+8]
|
||
mov [eax+streamInfo.bufPtr], esi
|
||
mov [eax+streamInfo.bufSize], 0x4000 - streamInfo.size - 8
|
||
and [eax+streamInfo.bufDataLen], 0
|
||
mov esi, dword [_7z.StreamsInfo.dataOffset]
|
||
mov dword [eax+streamInfo.size], esi
|
||
mov esi, dword [_7z.StreamsInfo.dataOffset+4]
|
||
mov dword [eax+streamInfo.size+4], esi
|
||
mov esi, [eax]
|
||
add dword [_7z.StreamsInfo.dataOffset], esi
|
||
mov esi, [eax+4]
|
||
adc dword [_7z.StreamsInfo.dataOffset+4], esi
|
||
add eax, 0x4000
|
||
inc ecx
|
||
cmp ecx, [ebx+_7z.StreamsInfo.numPackedStreams]
|
||
jb @b
|
||
; initialize links between streams
|
||
push -1
|
||
mov edx, [ebx+_7z.StreamsInfo.mainOutStream]
|
||
xor ecx, ecx
|
||
.init_links:
|
||
mov eax, [ebx+_7z.StreamsInfo.fsz+edx*4]
|
||
movzx esi, byte [eax+4]
|
||
cmp ecx, [eax+esi+5]
|
||
jb @f
|
||
pop ecx
|
||
cmp ecx, -1
|
||
jz .inited_links
|
||
pop edx
|
||
jmp .init_links
|
||
@@:
|
||
push edx
|
||
push ecx
|
||
@@:
|
||
dec edx
|
||
js @f
|
||
mov eax, [ebx+_7z.StreamsInfo.fsz+edx*4]
|
||
movzx esi, byte [eax+4]
|
||
add ecx, [eax+esi+5]
|
||
jmp @b
|
||
@@:
|
||
mov esi, [ebx+_7z.StreamsInfo.bindPairs]
|
||
mov edx, [ebx+_7z.StreamsInfo.numBindPairs]
|
||
@@:
|
||
add esi, 8
|
||
dec edx
|
||
js .link_to_in
|
||
cmp ecx, [esi-8]
|
||
jnz @b
|
||
pop ecx
|
||
pop edx
|
||
mov eax, [.pStreams]
|
||
mov eax, [eax+edx*4]
|
||
lea eax, [eax+streamInfo.size+ecx*4]
|
||
push edx
|
||
inc ecx
|
||
push ecx
|
||
mov edx, [esi-4]
|
||
mov ecx, [.pStreams]
|
||
mov ecx, [ecx+edx*4]
|
||
mov [eax], ecx
|
||
cmp dword [ecx+streamInfo.size], 0
|
||
jnz return.err
|
||
xor ecx, ecx
|
||
jmp .init_links
|
||
.link_to_in:
|
||
mov esi, [ebx+_7z.StreamsInfo.packedStreams]
|
||
mov edx, [ebx+_7z.StreamsInfo.numPackedStreams]
|
||
@@:
|
||
dec edx
|
||
js return.err
|
||
cmp ecx, [esi+edx*4]
|
||
jnz @b
|
||
add edx, [ebx+_7z.StreamsInfo.numCoders]
|
||
mov esi, [.pStreams]
|
||
mov eax, [esi+edx*4]
|
||
pop ecx
|
||
pop edx
|
||
mov esi, [esi+edx*4]
|
||
mov [esi+streamInfo.size+ecx*4], eax
|
||
inc ecx
|
||
jmp .init_links
|
||
.inited_links:
|
||
; initialize all decoders
|
||
; bool zzz_init_decoder(stream_info* ebp, esi->params, [esi-4]=params_size);
|
||
xor ecx, ecx
|
||
.init_decoders:
|
||
mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4]
|
||
call _7z.GetCoder
|
||
movzx esi, byte [eax+4]
|
||
mov ebp, [.pStreams]
|
||
mov ebp, [ebp+ecx*4]
|
||
cmp dword [esi+eax], 0
|
||
jz @f
|
||
cmp dword [ebp+streamInfo.size], 0
|
||
jz return.err
|
||
@@:
|
||
lea esi, [esi+eax+17]
|
||
push ebx ecx edi
|
||
xor ebx, ebx
|
||
call [_7z.InitTable+edx*4]
|
||
pop edi ecx ebx
|
||
inc ecx
|
||
cmp ecx, [ebx+_7z.StreamsInfo.numCoders]
|
||
jb .init_decoders
|
||
ret
|
||
|
||
fillBuf:
|
||
and [eax+streamInfo.bufDataLen], 0
|
||
fillBufNozero:
|
||
pushad
|
||
mov edx, [eax+streamInfo.bufSize]
|
||
sub edx, [eax+streamInfo.bufDataLen]
|
||
cmp dword [eax+streamInfo.fullSize+4], 0
|
||
jnz .full
|
||
mov ecx, dword [eax+streamInfo.fullSize]
|
||
cmp ecx, edx
|
||
jbe @f
|
||
.full:
|
||
mov ecx, edx
|
||
@@:
|
||
sub dword [eax+streamInfo.fullSize], ecx
|
||
sbb dword [eax+streamInfo.fullSize+4], 0
|
||
mov edi, [eax+streamInfo.bufPtr]
|
||
add edi, [eax+streamInfo.bufDataLen]
|
||
add [eax+streamInfo.bufDataLen], ecx
|
||
jmp [eax+streamInfo.fillBuf]
|
||
|
||
fillBufFromInStream:
|
||
push eax
|
||
push dword [eax+streamInfo.size+4]
|
||
push dword [eax+streamInfo.size]
|
||
push 0
|
||
push [inStream]
|
||
call [seek]
|
||
push ecx
|
||
push edi
|
||
push [inStream]
|
||
call [read]
|
||
cmp eax, ecx
|
||
pop eax
|
||
jnz .error
|
||
add dword [eax+streamInfo.size], ecx
|
||
adc dword [eax+streamInfo.size+4], 0
|
||
popad
|
||
ret
|
||
.error:
|
||
push ContinueBtn
|
||
push 1
|
||
push aReadError_ptr
|
||
push 1
|
||
call [SayErr]
|
||
jmp return.clear
|
||
|
||
_7z.GetCoder:
|
||
; in: eax->coder
|
||
; out: edx = coder type
|
||
xor edx, edx
|
||
; Copy decoder: method ID = [size=01] 00, NumInStreams = NumOutStreams = 1
|
||
cmp word [eax+4], 0x0001
|
||
jnz @f
|
||
cmp dword [eax+6], 1
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; LZMA decoder: method ID = [size=03] 03 01 01, NumInStreams = NumOutStreams = 1
|
||
cmp dword [eax+4], 0x01010303
|
||
jnz @f
|
||
cmp dword [eax+8], 1
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; PPMD decoder: method ID = [size=03] 03 04 01, NumInStreams = NumOutStreams = 1
|
||
cmp dword [eax+4], 0x01040303
|
||
jnz @f
|
||
cmp dword [eax+8], 1
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; BCJ filter: method ID = [size=04] 03 03 01 03, NumInStreams = NumOutStreams = 1
|
||
cmp byte [eax+4], 4
|
||
jnz @f
|
||
cmp dword [eax+5], 0x03010303
|
||
jnz @f
|
||
cmp dword [eax+9], 1
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; BCJ2 filter: method ID = [size=04] 03 03 01 1B, NumInStreams = 4, NumOutStreams = 1
|
||
cmp byte [eax+4], 4
|
||
jnz @f
|
||
cmp dword [eax+5], 0x1B010303
|
||
jnz @f
|
||
cmp dword [eax+9], 4
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; 7z-AES cryptor: method ID = [size=04] 06 F1 07 01, NumInStreams = NumOutStreams = 1
|
||
cmp byte [eax+4], 4
|
||
jnz @f
|
||
cmp dword [eax+5], 0x0107F106
|
||
jnz @f
|
||
cmp dword [eax+9], 1
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; Deflate decoder: method ID = [size=03] 04 01 08, NumInStreams = NumOutStreams = 1
|
||
cmp dword [eax+4], 0x08010403
|
||
jnz @f
|
||
cmp dword [eax+8], 1
|
||
jz .ret
|
||
@@:
|
||
inc edx
|
||
; Deflate64 decoder: method ID = [size=03] 04 01 09, NumInStreams = NumOutStreams = 1
|
||
cmp dword [eax+4], 0x09010403
|
||
jnz @f
|
||
cmp dword [eax+8], 1
|
||
jz .ret
|
||
@@:
|
||
stc
|
||
.ret:
|
||
ret
|
||
|
||
iglobal
|
||
align 4
|
||
label _7z.GetBufSizeTable dword
|
||
dd copy_get_buf_size
|
||
dd lzma_get_buf_size
|
||
dd ppmd_get_buf_size
|
||
dd bcj_get_buf_size
|
||
dd bcj2_get_buf_size
|
||
dd aes7z_get_buf_size
|
||
dd deflate_get_buf_size
|
||
dd deflate_get_buf_size
|
||
label _7z.InitTable dword
|
||
dd copy_init_decoder
|
||
dd lzma_init_decoder
|
||
dd ppmd_init_decoder
|
||
dd bcj_init_decoder
|
||
dd bcj2_init_decoder
|
||
dd aes7z_init_decoder
|
||
dd deflate_init_decoder
|
||
dd deflate64_init_decoder
|
||
endg
|
||
|
||
copy_get_buf_size:
|
||
mov eax, streamInfo.size+8
|
||
mov edx, 0x10000
|
||
ret
|
||
|
||
copy_init_decoder:
|
||
mov [ebp+streamInfo.fillBuf], copy_fillBuf
|
||
and dword [ebp+streamInfo.size+4], 0
|
||
ret
|
||
|
||
copy_fillBuf:
|
||
push eax
|
||
mov esi, [eax+streamInfo.size+4]
|
||
mov eax, [eax+streamInfo.size]
|
||
.redo:
|
||
push ecx
|
||
mov edx, [eax+streamInfo.bufDataLen]
|
||
sub edx, esi
|
||
cmp ecx, edx
|
||
jb @f
|
||
mov ecx, edx
|
||
@@:
|
||
sub [esp], ecx
|
||
add esi, [eax+streamInfo.bufPtr]
|
||
mov edx, ecx
|
||
shr ecx, 2
|
||
rep movsd
|
||
mov ecx, edx
|
||
and ecx, 3
|
||
rep movsb
|
||
pop ecx
|
||
jecxz .done
|
||
cmp dword [eax+streamInfo.fullSize+4], 0
|
||
jnz @f
|
||
cmp dword [eax+streamInfo.fullSize], ecx
|
||
jb return.err
|
||
@@:
|
||
call fillBuf
|
||
xor esi, esi
|
||
jmp .redo
|
||
.done:
|
||
sub esi, [eax+streamInfo.bufPtr]
|
||
pop eax
|
||
mov [eax+streamInfo.size+4], esi
|
||
popad
|
||
ret
|
||
|
||
; ebp=hPlugin, eax->item, edi->info
|
||
getattr_7z:
|
||
cmp [eax+file_in_7z.bPseudoFolder], 0
|
||
jnz .pseudo
|
||
lea esi, [eax+file_in_7z.attr]
|
||
movsd
|
||
xor eax, eax
|
||
stosd
|
||
add esi, -(file_in_7z.attr+4) + file_in_7z.CreationTime
|
||
mov ecx, 8
|
||
rep movsd
|
||
ret
|
||
.pseudo:
|
||
push 0x10 ; attributes: folder
|
||
pop eax
|
||
stosd
|
||
xor eax, eax
|
||
stosd
|
||
lea esi, [ebp+handle_7z.host_datetime]
|
||
push 6
|
||
pop ecx
|
||
rep movsd
|
||
stosd
|
||
stosd
|
||
ret
|
||
|
||
virtual at 0
|
||
file_handle_7z:
|
||
.type dd ?
|
||
.context dd ?
|
||
.pos dq ?
|
||
.base dd ? ; handle of archive
|
||
.item dd ? ; pointer to file_in_7z
|
||
.mainStream dd ? ; (pointer in context)
|
||
.bError db ?
|
||
rb 3
|
||
.size = $
|
||
end virtual
|
||
|
||
iglobal
|
||
align 4
|
||
handle_table_7z dd handle_table_7z,handle_table_7z
|
||
endg
|
||
|
||
; ebp=hPlugin, eax->item, edi=mode
|
||
open_file_7z:
|
||
cmp [eax+file_in_7z.bHasStream], 0
|
||
jnz @f
|
||
mov eax, empty_7z_handle
|
||
ret
|
||
@@:
|
||
mov ecx, [ebp+handle_7z.password_len]
|
||
inc ecx
|
||
setnz [bPasswordDefined]
|
||
jz @f
|
||
dec ecx
|
||
lea esi, [ebp+handle_7z.password]
|
||
push edi
|
||
mov edi, password_unicode
|
||
shr ecx, 1
|
||
rep movsd
|
||
adc ecx, ecx
|
||
rep movsw
|
||
pop edi
|
||
@@:
|
||
mov [hOut], ecx
|
||
mov [_7z.decode.mainbuf], ecx
|
||
mov ecx, [ebp+handle_7z.host]
|
||
mov [inStream], ecx
|
||
mov [_7z.decode.pStreams], _7z.decode.pStreams_def
|
||
push eax
|
||
mov [_esp], esp
|
||
mov [_ebp], ebp
|
||
mov [error_proc], .error
|
||
mov [clear_proc], .clear
|
||
mov ebx, [ebp+handle_7z.folders]
|
||
mov ecx, [eax+file_in_7z.folder]
|
||
cmp [ebp+handle_7z.last_folder], ecx
|
||
jnz .nolast
|
||
mov edx, dword [eax+file_in_7z.folderStart]
|
||
sub edx, dword [ebp+handle_7z.last_pos]
|
||
mov esi, dword [eax+file_in_7z.folderStart+4]
|
||
sbb esi, dword [ebp+handle_7z.last_pos+4]
|
||
jb .nolast
|
||
xor ecx, ecx
|
||
xchg ecx, [ebp+handle_7z.last_context]
|
||
mov [_7z.decode.mainbuf], ecx
|
||
mov eax, [ebp+handle_7z.last_main_stream]
|
||
mov dword [eax+streamInfo.fullSize], edx
|
||
mov dword [eax+streamInfo.fullSize+4], esi
|
||
or [ebp+handle_7z.last_folder], -1
|
||
pop esi
|
||
push esi
|
||
jmp .commonl
|
||
.nolast:
|
||
mov ebx, [ebx+ecx*4]
|
||
mov eax, [ebx+_7z.StreamsInfo.startPackedStream]
|
||
mov [_7z.CurInStream], eax
|
||
mov eax, dword [ebx+_7z.StreamsInfo.packOffset]
|
||
mov dword [_7z.StreamsInfo.dataOffset], eax
|
||
mov eax, dword [ebx+_7z.StreamsInfo.packOffset+4]
|
||
mov dword [_7z.StreamsInfo.dataOffset+4], eax
|
||
mov eax, [ebp+handle_7z.packSizes]
|
||
mov [_7z.StreamsInfo.packSizes], eax
|
||
push ebp
|
||
call _7z.decode.init
|
||
pop ebp
|
||
mov eax, [ebx+_7z.StreamsInfo.mainOutStream]
|
||
mov esi, [_7z.decode.pStreams]
|
||
mov eax, [esi+eax*4]
|
||
pop esi
|
||
push esi
|
||
mov ecx, dword [esi+file_in_7z.folderStart]
|
||
mov dword [eax+streamInfo.fullSize], ecx
|
||
mov ecx, dword [esi+file_in_7z.folderStart+4]
|
||
mov dword [eax+streamInfo.fullSize+4], ecx
|
||
.commonl:
|
||
call skip_7z
|
||
mov ecx, dword [esi+file_in_7z.UnPackSize]
|
||
mov dword [eax+streamInfo.fullSize], ecx
|
||
mov edx, dword [esi+file_in_7z.UnPackSize+4]
|
||
mov dword [eax+streamInfo.fullSize+4], edx
|
||
test edx, edx
|
||
jnz .nomemstream
|
||
if defined LIMIT_FOR_MEM_STREAM
|
||
cmp ecx, LIMIT_FOR_MEM_STREAM
|
||
ja .nomemstream
|
||
end if
|
||
push eax ecx
|
||
add ecx, 0x3FF
|
||
shr ecx, 10 ; get size in Kb
|
||
call [getfreemem]
|
||
shr eax, 2
|
||
cmp ecx, eax
|
||
pop ecx eax
|
||
ja .nomemstream
|
||
; create memory stream and unpack to memory
|
||
push eax ecx
|
||
add ecx, mem_stream.buf
|
||
call [pgalloc]
|
||
test eax, eax
|
||
jz return.clear
|
||
mov edi, eax
|
||
pop ecx
|
||
push edi
|
||
mov [hOut], eax
|
||
xor eax, eax ; type_mem_stream
|
||
stosd ; mem_stream.type
|
||
mov eax, ecx
|
||
stosd ; mem_stream.size
|
||
xor eax, eax
|
||
stosd ; mem_stream.pos
|
||
mov eax, [esp+4]
|
||
push esi
|
||
push ecx edi
|
||
call read_7z_to_buf
|
||
pop esi ecx
|
||
mov ebx, [esp+12]
|
||
cmp [ebx+file_in_7z.bCRCDefined], 0
|
||
jz @f
|
||
call crc
|
||
cmp eax, [ebx+file_in_7z.FileCRC]
|
||
jnz return.err
|
||
@@:
|
||
pop esi
|
||
xor ecx, ecx
|
||
xchg ecx, [_7z.decode.mainbuf]
|
||
xchg ecx, [ebp+handle_7z.last_context]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
and [hOut], 0
|
||
mov eax, [esi+file_in_7z.folder]
|
||
mov [ebp+handle_7z.last_folder], eax
|
||
mov eax, [esp+4]
|
||
mov [ebp+handle_7z.last_main_stream], eax
|
||
mov ecx, dword [esi+file_in_7z.UnPackSize]
|
||
add ecx, dword [esi+file_in_7z.folderStart]
|
||
mov dword [ebp+handle_7z.last_pos], ecx
|
||
mov ecx, dword [esi+file_in_7z.UnPackSize+4]
|
||
adc ecx, dword [esi+file_in_7z.folderStart+4]
|
||
mov dword [ebp+handle_7z.last_pos+4], ecx
|
||
call .done
|
||
pop eax edi ecx
|
||
ret
|
||
.nomemstream:
|
||
mov edi, eax
|
||
push esi
|
||
mov esi, handle_table_7z
|
||
push file_handle_7z.size
|
||
pop ecx
|
||
call alloc_handle
|
||
pop esi
|
||
test eax, eax
|
||
jz .clear
|
||
mov [eax+file_handle_7z.type], type_7z
|
||
xor edx, edx
|
||
mov dword [eax+file_handle_7z.pos], edx
|
||
mov dword [eax+file_handle_7z.pos+4], edx
|
||
mov [eax+file_handle_7z.bError], dl
|
||
xchg edx, [_7z.decode.mainbuf]
|
||
mov [eax+file_handle_7z.context], edx
|
||
mov [eax+file_handle_7z.mainStream], edi
|
||
mov [eax+file_handle_7z.base], ebp
|
||
mov [eax+file_handle_7z.item], esi
|
||
push eax
|
||
call .done
|
||
pop eax ecx
|
||
ret
|
||
|
||
.done:
|
||
cmp [bPasswordDefined], 0
|
||
jz @f
|
||
mov ecx, [password_size]
|
||
mov [ebp+handle_7z.password_len], ecx
|
||
mov esi, password_unicode
|
||
lea edi, [ebp+handle_7z.password]
|
||
shr ecx, 1
|
||
rep movsd
|
||
adc ecx, ecx
|
||
rep movsw
|
||
@@:
|
||
jmp .clear
|
||
|
||
.error:
|
||
cmp [bPasswordDefined], 0
|
||
jz .realerror
|
||
push CancelPassBtn
|
||
push 2
|
||
push aArchiveDataErrorPass_ptr
|
||
push 1
|
||
call [SayErr]
|
||
cmp al, 1
|
||
jnz .clear
|
||
; user wants to re-enter password
|
||
call .clear
|
||
pop eax
|
||
jmp open_file_7z
|
||
.realerror:
|
||
push ContinueBtn
|
||
push 1
|
||
push aArchiveDataError_ptr
|
||
push 1
|
||
call [SayErr]
|
||
.clear:
|
||
mov ecx, [_7z.decode.pStreams]
|
||
cmp ecx, _7z.decode.pStreams_def
|
||
jz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [_7z.decode.mainbuf]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov ecx, [hOut]
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
cmp esp, [_esp]
|
||
jnz @f
|
||
pop eax
|
||
@@:
|
||
xor eax, eax
|
||
ret
|
||
|
||
read_7z_to_buf:
|
||
mov esi, [eax+streamInfo.bufDataLen]
|
||
cmp esi, [eax+streamInfo.bufSize]
|
||
jnz @f
|
||
xor esi, esi
|
||
mov [eax+streamInfo.bufDataLen], esi
|
||
@@:
|
||
call fillBufNozero
|
||
mov ecx, [eax+streamInfo.bufDataLen]
|
||
sub ecx, esi
|
||
add esi, [eax+streamInfo.bufPtr]
|
||
mov edx, ecx
|
||
shr ecx, 2
|
||
rep movsd
|
||
mov ecx, edx
|
||
and ecx, 3
|
||
rep movsb
|
||
cmp dword [eax+streamInfo.fullSize], 0
|
||
jnz read_7z_to_buf
|
||
ret
|
||
|
||
skip_7z:
|
||
push edx
|
||
mov edx, [eax+streamInfo.bufDataLen]
|
||
cmp edx, [eax+streamInfo.bufSize]
|
||
jnz @f
|
||
and [eax+streamInfo.bufDataLen], 0
|
||
@@:
|
||
pop edx
|
||
call fillBufNozero
|
||
cmp dword [eax+streamInfo.fullSize], 0
|
||
jnz skip_7z
|
||
cmp dword [eax+streamInfo.fullSize+4], 0
|
||
jnz skip_7z
|
||
ret
|
||
|
||
; unsigned __stdcall read(HANDLE hFile, void* buf, unsigned size);
|
||
read_7z:
|
||
mov eax, [ebx+file_handle_7z.mainStream]
|
||
test eax, eax
|
||
jz .ret ; empty stream - return 0 bytes read
|
||
cmp [ebx+file_handle_7z.bError], 0
|
||
jnz .reterr
|
||
mov ecx, [ebx+file_handle_7z.base]
|
||
mov ecx, [ecx+handle_7z.host]
|
||
mov [inStream], ecx
|
||
mov edi, [esp+8]
|
||
mov ecx, [esp+12]
|
||
mov dword [eax+streamInfo.fullSize], ecx
|
||
and dword [eax+streamInfo.fullSize+4], 0
|
||
jecxz .nodata
|
||
mov [_esp], esp
|
||
mov [_ebp], ebp
|
||
mov [error_proc], .error
|
||
mov [clear_proc], .clear ; should not be called
|
||
mov esi, [ebx+file_handle_7z.item]
|
||
mov edx, dword [esi+file_in_7z.UnPackSize]
|
||
mov esi, dword [esi+file_in_7z.UnPackSize+4]
|
||
sub edx, dword [ebx+file_handle_7z.pos]
|
||
sbb esi, dword [ebx+file_handle_7z.pos+4]
|
||
jnz .do
|
||
cmp edx, ecx
|
||
jae .do
|
||
mov dword [eax+streamInfo.fullSize], edx
|
||
.do:
|
||
call read_7z_to_buf
|
||
.nodata:
|
||
sub edi, [esp+8]
|
||
mov eax, edi
|
||
add dword [ebx+file_handle_7z.pos], eax
|
||
adc dword [ebx+file_handle_7z.pos+4], 0
|
||
.ret:
|
||
ret 12
|
||
|
||
.error:
|
||
.clear:
|
||
mov ebx, [esp+4]
|
||
mov [ebx+file_handle_7z.bError], 1
|
||
push ContinueBtn
|
||
push 1
|
||
push aArchiveDataError_ptr
|
||
push 1
|
||
call [SayErr]
|
||
.reterr:
|
||
or eax, -1
|
||
ret 12
|
||
|
||
; void __stdcall setpos(HANDLE hFile, __int64 pos);
|
||
setpos_7z:
|
||
cmp [ebx+file_handle_7z.context], 0
|
||
jz .ret
|
||
mov edi, [ebx+file_handle_7z.base]
|
||
mov ecx, [edi+handle_7z.host]
|
||
mov [inStream], ecx
|
||
mov [_esp], esp
|
||
mov [_ebp], ebp
|
||
mov [error_proc], read_7z.error
|
||
mov [clear_proc], read_7z.clear ; should not be called
|
||
cmp [ebx+file_handle_7z.bError], 0
|
||
jnz .backward ; if was error, force reinitialization
|
||
mov ecx, [esp+8]
|
||
mov edx, [esp+12]
|
||
sub ecx, dword [ebx+file_handle_7z.pos]
|
||
sbb edx, dword [ebx+file_handle_7z.pos+4]
|
||
jb .backward
|
||
; move forward - skip some data
|
||
mov eax, [ebx+file_handle_7z.mainStream]
|
||
mov dword [eax+streamInfo.fullSize], ecx
|
||
mov dword [eax+streamInfo.fullSize+4], edx
|
||
call skip_7z
|
||
add dword [ebx+file_handle_7z.pos], ecx
|
||
adc dword [ebx+file_handle_7z.pos], edx
|
||
.ret:
|
||
ret 12
|
||
.backward:
|
||
; move backward - reinitialize and skip start data
|
||
mov [ebx+file_handle_7z.bError], 0
|
||
mov ebp, [ebx+file_handle_7z.context]
|
||
mov eax, [ebx+file_handle_7z.item]
|
||
mov ebx, [edi+handle_7z.folders]
|
||
mov eax, [eax+file_in_7z.folder]
|
||
mov ebx, [ebx+eax*4]
|
||
; initialize streamInfos for decoders
|
||
xor ecx, ecx
|
||
mov esi, [ebx+_7z.StreamsInfo.unpackSizes]
|
||
@@:
|
||
lodsd
|
||
mov [ebp], eax
|
||
lodsd
|
||
mov [ebp+4], eax
|
||
and [ebp+streamInfo.bufDataLen], 0
|
||
push esi
|
||
mov eax, [ebx+_7z.StreamsInfo.fsz+ecx*4]
|
||
call _7z.GetCoder
|
||
movzx esi, byte [eax+4]
|
||
lea esi, [esi+eax+17]
|
||
push ebx ecx edi
|
||
mov bl, 1
|
||
call [_7z.InitTable+edx*4]
|
||
pop edi ecx ebx esi
|
||
mov edx, [ebp+streamInfo.bufSize]
|
||
mov ebp, [ebp+streamInfo.bufPtr]
|
||
add ebp, edx
|
||
inc ecx
|
||
cmp ecx, [ebx+_7z.StreamsInfo.numCoders]
|
||
jb @b
|
||
; initialize streamInfos for input streams
|
||
xor ecx, ecx
|
||
mov esi, [ebx+_7z.StreamsInfo.startPackedStream]
|
||
shl esi, 3
|
||
add esi, [edi+handle_7z.packSizes]
|
||
mov edi, dword [ebx+_7z.StreamsInfo.packOffset]
|
||
mov edx, dword [ebx+_7z.StreamsInfo.packOffset+4]
|
||
@@:
|
||
mov dword [ebp+streamInfo.size], edi
|
||
mov dword [ebp+streamInfo.size+4], edx
|
||
and [ebp+streamInfo.bufDataLen], 0
|
||
lodsd
|
||
add edi, eax
|
||
mov [ebp], eax
|
||
lodsd
|
||
adc edx, eax
|
||
mov [ebp+4], eax
|
||
add ebp, 0x4000
|
||
inc ecx
|
||
cmp ecx, [ebx+_7z.StreamsInfo.numPackedStreams]
|
||
jb @b
|
||
mov ebx, [esp+4]
|
||
mov esi, [ebx+file_handle_7z.item]
|
||
mov eax, [ebx+file_handle_7z.mainStream]
|
||
mov ecx, dword [esi+file_in_7z.folderStart]
|
||
add ecx, [esp+8]
|
||
mov dword [eax+streamInfo.fullSize], ecx
|
||
mov ecx, dword [esi+file_in_7z.folderStart+4]
|
||
adc ecx, [esp+12]
|
||
mov dword [eax+streamInfo.fullSize+4], ecx
|
||
and dword [ebx+file_handle_7z.pos], 0
|
||
and dword [ebx+file_handle_7z.pos+4], 0
|
||
and [eax+streamInfo.bufDataLen], 0
|
||
call skip_7z
|
||
mov eax, [esp+8]
|
||
mov dword [ebx+file_handle_7z.pos], eax
|
||
mov eax, [esp+12]
|
||
mov dword [ebx+file_handle_7z.pos+4], eax
|
||
ret 12
|
||
|
||
close_file_7z:
|
||
mov ecx, [ebx+file_handle_7z.context]
|
||
jecxz .ret
|
||
cmp [ebx+file_handle_7z.bError], 0
|
||
jnz @f
|
||
push ebp
|
||
mov ebp, [ebx+file_handle_7z.base]
|
||
xchg ecx, [ebp+handle_7z.last_context]
|
||
mov eax, [ebx+file_handle_7z.item]
|
||
mov edx, [eax+file_in_7z.folder]
|
||
mov [ebp+handle_7z.last_folder], edx
|
||
mov edx, [ebx+file_handle_7z.mainStream]
|
||
mov [ebp+handle_7z.last_main_stream], edx
|
||
mov edx, dword [eax+file_in_7z.folderStart+4]
|
||
mov eax, dword [eax+file_in_7z.folderStart]
|
||
add eax, dword [ebx+file_handle_7z.pos]
|
||
adc edx, dword [ebx+file_handle_7z.pos+4]
|
||
mov dword [ebp+handle_7z.last_pos], eax
|
||
mov dword [ebp+handle_7z.last_pos+4], edx
|
||
pop ebp
|
||
@@:
|
||
jecxz @f
|
||
call [pgfree]
|
||
@@:
|
||
mov esi, ebx
|
||
call free_handle
|
||
.ret:
|
||
ret 4
|