mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-16 03:42:35 +03:00
1373 lines
41 KiB
NASM
1373 lines
41 KiB
NASM
;
|
||
; project name: KFar_Arc - plugin for KFar, which supports various archives
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||
; target platform: KolibriOS
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; compiler: FASM 1.67.14
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; version: 0.11
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; last update: 2007-09-20 (Sep 20, 2007)
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; minimal KFar version: 0.41
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; minimal kernel: no limit
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;
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; author: Diamond
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; email: diamondz@land.ru
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; web: http://diamondz.land.ru
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;
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; standard start of Kolibri dynamic library
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format MS COFF
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public EXPORTS
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section '.flat' code readable align 16
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; include auxiliary procedures
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include 'kglobals.inc' ; iglobal/uglobal
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include 'lang.inc' ; define language for localized strings
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include 'crc.inc' ; CRC32 calculation
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include 'sha256.inc' ; SHA-256 hash algorithm
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include 'aes.inc' ; AES crypto algorithm
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; include main code for archives loading
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include '7z.inc' ; *.7z
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include 'lzma.inc' ; LZMA-decoder for *.7z
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include 'ppmd.inc' ; PPMD-decoder for *.7z
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include '7zbranch.inc' ; branch filters for *.7z
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include '7zaes.inc' ; AES cryptor for *.7z
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include 'zip.inc' ; *.zip
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include 'deflate.inc' ; Deflate[64] decoder for *.7z and *.zip
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;; Interface for KFar ;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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virtual at 0
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kfar_info_struc:
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.lStructSize dd ?
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.kfar_ver dd ?
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.open dd ?
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.open2 dd ?
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.read dd ?
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.write dd ?
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.seek dd ?
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.tell dd ?
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.flush dd ?
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.filesize dd ?
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.close dd ?
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.pgalloc dd ?
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.pgrealloc dd ?
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.pgfree dd ?
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.getfreemem dd ?
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.pgalloc2 dd ?
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.pgrealloc2 dd ?
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.pgfree2 dd ?
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.menu dd ?
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.menu_centered_in dd ?
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.DialogBox dd ?
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.SayErr dd ?
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.Message dd ?
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.cur_console_size dd ?
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end virtual
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; int __stdcall plugin_load(kfar_info* info);
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; Initialization of plugin + Save used KFar functions.
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plugin_load:
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mov eax, [esp+4]
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mov [kfar_info], eax
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push [eax+kfar_info_struc.open2]
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pop [open2]
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push [eax+kfar_info_struc.filesize]
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pop [filesize]
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push [eax+kfar_info_struc.read]
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pop [read]
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push [eax+kfar_info_struc.seek]
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pop [seek]
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push [eax+kfar_info_struc.close]
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pop [close]
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lea esi, [eax+kfar_info_struc.DialogBox]
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mov edi, DialogBox
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movsd
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movsd
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movsd
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movsd
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lea esi, [eax+kfar_info_struc.pgalloc]
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mov edi, pgalloc
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movsd
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movsd
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movsd
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movsd
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call init_crc_table
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call init_aes
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call init_ppmd
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xor eax, eax ; success
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ret 4
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; HANDLE __stdcall OpenFilePlugin(HANDLE basefile,
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; const void* attr, const void* data, int datasize,
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; int baseplugin_id, HANDLE baseplugin_instance, const char* name);
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; This function is called when user presses Enter (or Ctrl+PgDn) on file.
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; Plugin tests whether given file is of supported type
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; and if so, loads information and returns
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; handle to be used in subsequent calls to ReadFolder, SetFolder and so on.
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OpenFilePlugin:
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mov [bPasswordDefined], 0
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mov esi, [esp+12]
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mov ebp, [esp+4]
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; test for 7z archive
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cmp dword [esp+16], 20h ; minimal size of 7z archive is 20h bytes
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jb .no_7z
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cmp word [esi], '7z' ; signature, part 1
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jnz .no_7z
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cmp dword [esi+2], 0x1C27AFBC ; signature, part 2
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jnz .no_7z
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call open_7z
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ret 28
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.no_7z:
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; test for zip archive
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cmp dword [esp+16], 22 ; minimal size of zip archive is 22 bytes
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jb .no_zip
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cmp word [esi], 0x4B50
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jnz .no_zip
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cmp word [esi+2], 0x0403
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jz .zip
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cmp word [esi+2], 0x0201
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jz .zip
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cmp word [esi+2], 0x0606
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jz .zip
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cmp word [esi+2], 0x0706
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jz .zip
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cmp word [esi+2], 0x0605
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jnz .no_zip
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.zip:
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call open_zip
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ret 28
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.no_zip:
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xor eax, eax
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ret 28
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; Handle of plugin in kfar_arc is as follow:
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virtual at 0
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handle_common:
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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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; ... some plugin-specific data follows ...
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end virtual
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; and for each archive item there is one file info structure, which begins as follow:
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virtual at 0
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file_common:
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.fullname dd ? ; pointer to cp866 string
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.name dd ? ; name without path (end of .fullname)
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.namelen dd ? ; strlen(.name)
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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 in list of subfolders/files
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.prev dd ? ; previous item in list of subfolders/files
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.stamp dd ? ; stamp for GetFiles
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end virtual
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; void __stdcall ClosePlugin(HANDLE hPlugin);
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; This function frees all resources allocated in OpenFilePlugin.
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ClosePlugin:
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mov eax, [esp+4] ; get hPlugin
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mov eax, [eax] ; hPlugin is pointer to internal data structure
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; first dword is archive type (type_xxx constants)
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dec eax ; types start from 1
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jmp dword [ClosePluginTable+eax*4]
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; int __stdcall ReadFolder(HANDLE hPlugin,
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; unsigned dirinfo_start, unsigned dirinfo_size, void* dirdata);
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ReadFolder:
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; init header
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mov edi, [esp+16]
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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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mov byte [edi-32], 1 ; version
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mov ebp, [esp+4]
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; get current directory
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lea ebx, [ebp+handle_common.root.subfolders]
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cmp [ebp+handle_common.curdir], 0
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jz @f
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mov ebx, [ebp+handle_common.curdir]
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add ebx, file_common.subfolders
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@@:
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mov ecx, [ebx+16]
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mov [edi-24], ecx ; number of files
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; edi points to BDFE
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push 6 ; assume EOF
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pop eax
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sub ecx, [esp+8]
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ja @f
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and dword [edi-28], 0 ; number of files read
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ret 10h
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@@:
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cmp ecx, [esp+12]
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jb @f
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mov ecx, [esp+12]
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xor eax, eax ; OK
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@@:
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mov [edi-28], ecx
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push eax
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; copy files data
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jecxz .done
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; seek to required item
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mov eax, [esp+8+4]
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mov esi, [ebx]
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.0:
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test esi, esi
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jnz .1
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mov esi, [ebx+8]
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.1:
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add esi, ebp
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dec eax
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js .2
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mov esi, [esi+file_common.next]
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jmp .0
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.2:
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.copy:
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pushad
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mov eax, esi
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mov ecx, [ebp]
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call dword [getattrTable+(ecx-1)*4]
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pop edi esi
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push esi edi
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add edi, 40
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mov ecx, [esi+file_common.namelen]
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mov esi, [esi+file_common.name]
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rep movsb
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mov byte [edi], 0
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popad
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add edi, 304
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mov esi, [esi+file_common.next]
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test esi, esi
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jnz @f
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mov esi, [ebx+8]
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@@:
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add esi, ebp
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loop .copy
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.done:
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pop eax
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ret 10h
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; bool __stdcall SetFolder(HANDLE hPlugin,
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; const char* relative_path, const char* absolute_path);
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SetFolder:
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mov ebp, [esp+4]
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mov edx, [ebp+handle_common.curdir]
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mov esi, [esp+8]
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cmp dword [esi], '..'
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jz .toparent
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xor ecx, ecx
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@@:
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inc ecx
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cmp byte [esi+ecx], 0
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jnz @b
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mov ebx, [ebp+handle_common.root.subfolders]
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test edx, edx
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jz .scan
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mov ebx, [edx+file_common.subfolders]
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.scan:
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test ebx, ebx
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jz .err
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add ebx, ebp
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cmp [ebx+file_common.namelen], ecx
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jnz .cont
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push ecx esi
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mov edi, [ebx+file_common.name]
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repz cmpsb
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pop esi ecx
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jz .set
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.cont:
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mov ebx, [ebx+file_common.next]
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jmp .scan
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.toparent:
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test edx, edx
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jz .err
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mov ebx, [edx+file_common.parent]
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test ebx, ebx
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jz @f
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add ebx, ebp
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@@:
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.set:
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mov [ebp+handle_common.curdir], ebx
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mov al, 1
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ret 12
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.err:
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xor eax, eax
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ret 12
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iglobal
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cur_stamp dd 0
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endg
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uglobal
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tmp_bdfe rb 304
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endg
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; void __stdcall GetFiles(HANDLE hPlugin, int NumItems, void* items[],
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; void* addfile, void* adddir);
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; bool __stdcall addfile(const char* name, void* bdfe_info, HANDLE hFile);
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; bool __stdcall adddir(const char* name, void* bdfe_info);
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GetFiles:
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mov ebp, [esp+4]
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mov ecx, [ebp+handle_common.NumFiles]
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test ecx, ecx
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jz .ret
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mov ebx, ebp
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mov eax, [ebx]
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add ebx, [basesizes+(eax-1)*8]
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inc [cur_stamp]
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.loop:
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push ecx
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mov esi, [ebx+file_common.fullname]
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mov edx, [ebp+handle_common.curdir]
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test edx, edx
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jz .incur
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mov eax, [cur_stamp]
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mov [edx+file_common.stamp], eax
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mov edi, [edx+file_common.fullname]
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mov ecx, [edx+file_common.namelen]
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add ecx, [edx+file_common.name]
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sub ecx, edi
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repz cmpsb
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jnz .cont
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.incur:
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cmp byte [esi], '/'
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jnz @f
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inc esi
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@@:
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mov ecx, [esp+12] ; NumItems
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mov edx, [esp+16] ; items
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cmp ecx, -1
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jz .ok
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.check:
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sub ecx, 1
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js .cont
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push esi
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mov edi, [edx]
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add edi, 40
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@@:
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lodsb
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scasb
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jnz @f
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test al, al
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jz .ok2
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jmp @b
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@@:
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pop esi
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cmp al, '/'
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jnz @f
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cmp byte [edi-1], 0
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jz .ok
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@@:
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add edx, 4
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jmp .check
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.ok2:
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pop esi
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.ok:
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; add all parents directories if needed
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.parloope:
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mov ecx, [ebx+file_common.parent]
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jecxz .pardone
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add ecx, ebp
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mov eax, [cur_stamp]
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cmp [ecx+file_common.stamp], eax
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jz .pardone
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.parloopi:
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mov edx, ecx
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mov ecx, [ecx+file_common.parent]
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jecxz @f
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add ecx, ebp
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cmp [ecx+file_common.stamp], eax
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jnz .parloopi
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@@:
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mov [edx+file_common.stamp], eax
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push esi
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mov eax, edx
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mov edi, tmp_bdfe
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push edi
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sub esi, [ebx+file_common.fullname]
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add esi, [edx+file_common.fullname]
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push esi
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mov ecx, [ebp]
|
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call dword [getattrTable+(ecx-1)*4]
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mov eax, [esp+16+20]
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call eax
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pop esi
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test al, al
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jz .forced_exit
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jmp .parloope
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.pardone:
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cmp [ebx+file_common.bIsDirectory], 0
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jz .addfile
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mov eax, [cur_stamp]
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cmp [ebx+file_common.stamp], eax
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jz .cont
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mov [ebx+file_common.stamp], eax
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push esi
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mov eax, ebx
|
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mov edi, tmp_bdfe
|
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push edi
|
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push esi
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mov ecx, [ebp]
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call dword [getattrTable+(ecx-1)*4]
|
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mov eax, [esp+16+20]
|
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call eax
|
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pop esi
|
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test al, al
|
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jz .forced_exit
|
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jmp .cont
|
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.addfile:
|
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push ebx esi ebp
|
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push 11h
|
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pop edi
|
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mov eax, ebx
|
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mov ecx, [ebp]
|
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call dword [openTable+(ecx-1)*4]
|
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pop ebp esi ebx
|
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test eax, eax
|
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jz .cont
|
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push eax
|
||
push eax
|
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mov edi, tmp_bdfe
|
||
push edi
|
||
push esi
|
||
mov eax, ebx
|
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mov ecx, [ebp]
|
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call dword [getattrTable+(ecx-1)*4]
|
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mov eax, [esp+20+16]
|
||
call eax
|
||
pop ecx
|
||
push eax ebp
|
||
push ebx
|
||
push ecx
|
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call myclose
|
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pop ebx
|
||
pop ebp eax
|
||
test al, al
|
||
jz .forced_exit
|
||
.cont:
|
||
mov eax, [ebp]
|
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add ebx, [basesizes+(eax-1)*8+4]
|
||
pop ecx
|
||
dec ecx
|
||
jnz .loop
|
||
.ret:
|
||
ret 20
|
||
.forced_exit:
|
||
pop ecx
|
||
jmp .ret
|
||
|
||
; void __stdcall GetOpenPluginInfo(HANDLE hPlugin, OpenPluginInfo* info);
|
||
GetOpenPluginInfo:
|
||
mov eax, [esp+8] ; get info ptr
|
||
mov byte [eax], 3 ; flags: add non-existing '..' entry automatically
|
||
; use GetFiles for copying
|
||
ret 8
|
||
|
||
; int __stdcall getattr(HANDLE hPlugin, const char* filename, void* info);
|
||
mygetattr:
|
||
call lookup_file_name
|
||
test eax, eax
|
||
jz @f
|
||
mov edx, [ebp]
|
||
dec edx
|
||
mov edi, [esp+12] ; info ptr
|
||
call dword [getattrTable+edx*4]
|
||
xor eax, eax
|
||
ret 12
|
||
@@:
|
||
mov al, 5 ; ERROR_FILE_NOT_FOUND
|
||
ret 12
|
||
|
||
; HANDLE __stdcall open(HANDLE hPlugin, const char* filename, int mode);
|
||
myopen:
|
||
call lookup_file_name
|
||
test eax, eax
|
||
jz @f
|
||
mov edx, [ebp]
|
||
dec edx
|
||
mov edi, [esp+12] ; mode
|
||
call dword [openTable+edx*4]
|
||
@@:
|
||
ret 12
|
||
|
||
; unsigned __stdcall read(HANDLE hFile, void* buf, unsigned size);
|
||
myread:
|
||
mov ebx, [esp+4]
|
||
mov eax, [ebx]
|
||
jmp dword [readTable+eax*4]
|
||
|
||
; void __stdcall setpos(HANDLE hFile, __int64 pos);
|
||
mysetpos:
|
||
mov ebx, [esp+4]
|
||
mov eax, [ebx]
|
||
jmp dword [setposTable+eax*4]
|
||
|
||
; void __stdcall close(HANDLE hFile);
|
||
myclose:
|
||
mov ebx, [esp+4]
|
||
mov eax, [ebx]
|
||
jmp dword [closeTable+eax*4]
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;; Auxiliary procedures ;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
; return.err and return.clear are labels to jmp if something is invalid
|
||
; the caller must previously define [_esp], [_ebp] and [error_proc], [clear_proc]
|
||
return.err:
|
||
mov esp, [_esp]
|
||
mov ebp, [_ebp]
|
||
jmp [error_proc]
|
||
return.clear:
|
||
mov esp, [_esp]
|
||
mov ebp, [_ebp]
|
||
jmp [clear_proc]
|
||
|
||
; data for following routine
|
||
iglobal
|
||
align 4
|
||
_24 dd 24
|
||
_60 dd 60
|
||
_10000000 dd 10000000
|
||
days400year dd 365*400+100-4+1
|
||
days100year dd 365*100+25-1
|
||
days4year dd 365*4+1
|
||
days1year dd 365
|
||
months dd 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
|
||
months2 dd 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
|
||
_400 dd 400
|
||
_100 dd 100
|
||
endg
|
||
|
||
; Convert QWORD FILETIME to BDFE format.
|
||
ntfs_datetime_to_bdfe:
|
||
; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC
|
||
push eax
|
||
mov eax, edx
|
||
xor edx, edx
|
||
div [_10000000]
|
||
xchg eax, [esp]
|
||
div [_10000000]
|
||
pop edx
|
||
; edx:eax = number of seconds since January 1, 1601
|
||
push eax
|
||
mov eax, edx
|
||
xor edx, edx
|
||
div [_60]
|
||
xchg eax, [esp]
|
||
div [_60]
|
||
mov [edi], dl
|
||
pop edx
|
||
; edx:eax = number of minutes
|
||
div [_60]
|
||
mov [edi+1], dl
|
||
; eax = number of hours (note that 2^64/(10^7*60*60) < 2^32)
|
||
xor edx, edx
|
||
div [_24]
|
||
mov [edi+2], dl
|
||
mov [edi+3], byte 0
|
||
; eax = number of days since January 1, 1601
|
||
xor edx, edx
|
||
div [days400year]
|
||
imul eax, 400
|
||
add eax, 1601
|
||
mov [edi+6], ax
|
||
mov eax, edx
|
||
xor edx, edx
|
||
div [days100year]
|
||
cmp al, 4
|
||
jnz @f
|
||
dec eax
|
||
add edx, [days100year]
|
||
@@:
|
||
imul eax, 100
|
||
add [edi+6], ax
|
||
mov eax, edx
|
||
xor edx, edx
|
||
div [days4year]
|
||
shl eax, 2
|
||
add [edi+6], ax
|
||
mov eax, edx
|
||
xor edx, edx
|
||
div [days1year]
|
||
cmp al, 4
|
||
jnz @f
|
||
dec eax
|
||
add edx, [days1year]
|
||
@@:
|
||
add [edi+6], ax
|
||
push esi edx
|
||
mov esi, months
|
||
movzx eax, word [edi+6]
|
||
test al, 3
|
||
jnz .noleap
|
||
xor edx, edx
|
||
push eax
|
||
div [_400]
|
||
pop eax
|
||
test edx, edx
|
||
jz .leap
|
||
xor edx, edx
|
||
div [_100]
|
||
test edx, edx
|
||
jz .noleap
|
||
.leap:
|
||
mov esi, months2
|
||
.noleap:
|
||
pop edx
|
||
xor eax, eax
|
||
inc eax
|
||
@@:
|
||
sub edx, [esi]
|
||
jb @f
|
||
add esi, 4
|
||
inc eax
|
||
jmp @b
|
||
@@:
|
||
add edx, [esi]
|
||
pop esi
|
||
inc edx
|
||
mov [edi+4], dl
|
||
mov [edi+5], al
|
||
add edi, 8
|
||
ret
|
||
|
||
; By given array of files information, initialize links between them
|
||
; ("[folder] contains [item]" relations).
|
||
; Information structure must be compatible with 'file_common'.
|
||
; Size of information structure is in [esp+4].
|
||
init_file_links:
|
||
; in: edx->file infos, ebx = number of files, [esp+4] = size,
|
||
; edi->{dd root.subfolders, dd root.subfolders.end,
|
||
; dd root.subfiles, dd root.subfiles.end, dd root.NumItems}
|
||
xor eax, eax
|
||
mov [.free], eax
|
||
push edi
|
||
stosd
|
||
stosd
|
||
stosd
|
||
stosd
|
||
stosd
|
||
pop edi
|
||
; Loop through all files
|
||
.mainloop:
|
||
dec ebx
|
||
js .mainloopdone
|
||
; Parse file name
|
||
; esi->current character in name
|
||
; dword [esp] = start of current component in file name
|
||
; ecx->{dd curdir.subfolders, dd curdir.subfolders.end,
|
||
; dd curdir.subfiles, dd curdir.subfiles.end}
|
||
mov esi, [edx+file_common.fullname]
|
||
mov ecx, edi
|
||
.parseloop:
|
||
push esi
|
||
.parsename:
|
||
lodsb
|
||
test al, al
|
||
jz @f
|
||
cmp al, '/'
|
||
jnz .parsename
|
||
@@:
|
||
; we have found next component of current name; look for it in current directory
|
||
sub esi, [esp]
|
||
dec esi ; esi = strlen(component)
|
||
cmp esi, 259
|
||
jbe @f
|
||
push ContinueBtn
|
||
push 1
|
||
push aNameTooLong_ptr
|
||
push 1
|
||
call [SayErr]
|
||
jmp return.clear
|
||
@@:
|
||
push ecx
|
||
mov eax, [ecx] ; eax->subfolders list
|
||
mov ecx, esi
|
||
.scansubfolders:
|
||
test eax, eax
|
||
jz .nofolder
|
||
add eax, [hOut]
|
||
cmp [eax+file_common.namelen], ecx
|
||
jnz .scancont
|
||
mov esi, [esp+4]
|
||
push ecx edi
|
||
mov edi, [eax+file_common.name]
|
||
repz cmpsb
|
||
pop edi ecx
|
||
jz .subfound
|
||
.scancont:
|
||
mov eax, [eax+file_common.next]
|
||
jmp .scansubfolders
|
||
.subfound:
|
||
; found subfolder, set it as current and continue parsing name
|
||
add [esp+4], ecx
|
||
pop ecx
|
||
lea ecx, [eax+file_common.subfolders]
|
||
pop esi
|
||
lodsb
|
||
test al, al
|
||
jnz .parseloop
|
||
; that was the last component of the name, and we have found subfolder
|
||
; so found subfolder is a virtual subfolder and must be replaced with current
|
||
; name
|
||
mov eax, [ecx-file_common.subfolders+file_common.namelen]
|
||
mov [edx+file_common.namelen], eax
|
||
sub esi, eax
|
||
dec esi
|
||
mov [edx+file_common.name], esi
|
||
sub edx, [hOut] ; convert pointer to relative
|
||
; replace item in L2-list
|
||
mov eax, [ecx-file_common.subfolders+file_common.prev]
|
||
test eax, eax
|
||
jnz .1
|
||
mov eax, [ecx-file_common.subfolders+file_common.parent]
|
||
sub eax, file_common.next - file_common.subfolders
|
||
jnc .1
|
||
lea eax, [edi-file_common.next]
|
||
jmp .2
|
||
.1:
|
||
add eax, [hOut]
|
||
.2:
|
||
mov [eax+file_common.next], edx
|
||
mov eax, [ecx-file_common.subfolders+file_common.next]
|
||
test eax, eax
|
||
jnz .3
|
||
mov eax, [ecx-file_common.subfolders+file_common.parent]
|
||
sub eax, file_common.prev - file_common.subfolders.end
|
||
jnc .3
|
||
lea eax, [edi-file_common.prev+4]
|
||
jmp .4
|
||
.3:
|
||
add eax, [hOut]
|
||
.4:
|
||
mov [eax+file_common.prev], edx
|
||
; correct parent links in childrens
|
||
mov eax, [ecx]
|
||
@@:
|
||
test eax, eax
|
||
jz @f
|
||
add eax, [hOut]
|
||
mov [eax+file_common.parent], edx
|
||
mov eax, [eax+file_common.next]
|
||
jmp @b
|
||
@@:
|
||
mov eax, [ecx+8]
|
||
@@:
|
||
test eax, eax
|
||
jz @f
|
||
add eax, [hOut]
|
||
mov [eax+file_common.parent], edx
|
||
mov eax, [eax+file_common.next]
|
||
jmp @b
|
||
@@:
|
||
add edx, [hOut]
|
||
; set children links
|
||
mov eax, [ecx]
|
||
mov [edx+file_common.subfolders], eax
|
||
mov eax, [ecx+4]
|
||
mov [edx+file_common.subfolders.end], eax
|
||
mov eax, [ecx+8]
|
||
mov [edx+file_common.subfiles], eax
|
||
mov eax, [ecx+12]
|
||
mov [edx+file_common.subfiles.end], eax
|
||
mov eax, [ecx+16]
|
||
mov [edx+file_common.NumSubItems], eax
|
||
; set prev/next links
|
||
mov eax, [ecx-file_common.subfolders+file_common.next]
|
||
mov [edx+file_common.next], eax
|
||
mov eax, [ecx-file_common.subfolders+file_common.prev]
|
||
mov [edx+file_common.prev], eax
|
||
; add old item to list of free items
|
||
uglobal
|
||
align 4
|
||
init_file_links.free dd ?
|
||
endg
|
||
sub ecx, file_common.subfolders
|
||
mov eax, [.free]
|
||
mov [ecx], eax
|
||
sub ecx, [hOut]
|
||
mov [.free], ecx
|
||
jmp .mainloopcont
|
||
.nofolder:
|
||
mov eax, edx
|
||
mov esi, [esp+4]
|
||
cmp byte [esi+ecx], 0
|
||
jz .newitem
|
||
; the current item is as 'dir1/item1' and 'dir1' has not been found
|
||
; allocate virtual subfolder 'dir1'
|
||
mov eax, [init_file_links.free]
|
||
test eax, eax
|
||
jz .realloc
|
||
add eax, [hOut]
|
||
push dword [eax]
|
||
pop [init_file_links.free]
|
||
jmp .allocated
|
||
.realloc:
|
||
; there is no free space, so reallocate [hOut] block
|
||
mov eax, [hOut]
|
||
sub [esp], eax ; make pointers relative
|
||
sub edx, eax
|
||
sub edi, eax
|
||
push ecx
|
||
mov ecx, [hOut.allocated]
|
||
add ecx, [esp+12+4]
|
||
mov [hOut.allocated], ecx
|
||
push ecx
|
||
and ecx, 0xFFF
|
||
cmp ecx, [esp+16+4]
|
||
pop ecx
|
||
ja @f
|
||
push edx
|
||
mov edx, eax
|
||
call [pgrealloc]
|
||
pop edx
|
||
test eax, eax
|
||
jnz @f
|
||
mov ecx, [hOut]
|
||
call [pgfree]
|
||
mov esp, [_esp]
|
||
or eax, -1
|
||
ret
|
||
@@:
|
||
pop ecx
|
||
mov [hOut], eax
|
||
add [esp], eax ; make pointers absolute
|
||
add edx, eax
|
||
add edi, eax
|
||
add eax, [hOut.allocated]
|
||
sub eax, [esp+8+4]
|
||
.allocated:
|
||
; eax -> new item
|
||
mov [eax+file_common.bIsDirectory], 1
|
||
mov [eax+file_common.bPseudoFolder], 1
|
||
.newitem:
|
||
mov [eax+file_common.namelen], ecx
|
||
pop ecx
|
||
pop esi
|
||
; ecx = parent item, eax = current item
|
||
mov [eax+file_common.name], esi
|
||
inc dword [ecx+16] ; new item in parent folder
|
||
push ecx
|
||
; add new item to end of L2-list
|
||
and [eax+file_common.next], 0
|
||
cmp [eax+file_common.bIsDirectory], 0
|
||
jnz @f
|
||
add ecx, 8
|
||
@@:
|
||
push eax
|
||
sub eax, [hOut]
|
||
cmp dword [ecx], 0
|
||
jnz @f
|
||
mov [ecx], eax
|
||
@@:
|
||
xchg eax, [ecx+4]
|
||
xchg eax, ecx
|
||
pop eax
|
||
mov [eax+file_common.prev], ecx
|
||
jecxz @f
|
||
add ecx, [hOut]
|
||
sub eax, [hOut]
|
||
mov [ecx+file_common.next], eax
|
||
add eax, [hOut]
|
||
@@:
|
||
pop ecx
|
||
; set parent link
|
||
and [eax+file_common.parent], 0
|
||
cmp ecx, edi
|
||
jz @f
|
||
sub ecx, file_common.subfolders
|
||
sub ecx, [hOut]
|
||
mov [eax+file_common.parent], ecx
|
||
@@:
|
||
; set current directory to current item
|
||
lea ecx, [eax+file_common.subfolders]
|
||
; if that was not last component, continue parse name
|
||
add esi, [eax+file_common.namelen]
|
||
lodsb
|
||
test al, al
|
||
jnz .parseloop
|
||
.mainloopcont:
|
||
; continue main loop
|
||
add edx, [esp+4]
|
||
jmp .mainloop
|
||
.mainloopdone:
|
||
; Loop done.
|
||
ret 4
|
||
|
||
; This subroutine is called by getattr and open.
|
||
; This subroutine looks for file name and returns NULL or pointer to file info record.
|
||
lookup_file_name:
|
||
mov ebp, [esp+8] ; hPlugin
|
||
mov esi, [esp+12] ; filename
|
||
lea edi, [ebp+handle_common.root.subfolders]
|
||
xor eax, eax
|
||
; KFar operates with absolute names, skip first '/'
|
||
cmp byte [esi], '/'
|
||
jnz .notfound
|
||
inc esi
|
||
.mainloop:
|
||
; get next component of name
|
||
push -1
|
||
pop ecx
|
||
@@:
|
||
inc ecx
|
||
cmp byte [esi+ecx], '/'
|
||
jz @f
|
||
cmp byte [esi+ecx], 0
|
||
jnz @b
|
||
@@:
|
||
; esi->component, ecx=length
|
||
; scan for required item in subfolders list
|
||
push -1
|
||
mov eax, [edi] ; .subfolders
|
||
.scan1:
|
||
test eax, eax
|
||
jz .notfound1
|
||
add eax, ebp
|
||
cmp [eax+file_common.namelen], ecx
|
||
jnz .cont1
|
||
push ecx esi edi
|
||
mov edi, [eax+file_common.name]
|
||
repz cmpsb
|
||
pop edi esi ecx
|
||
jz .found1
|
||
.cont1:
|
||
mov eax, [eax+file_common.next]
|
||
jmp .scan1
|
||
.notfound1:
|
||
pop edx
|
||
; if this is last component in file name, scan in subfiles list
|
||
cmp byte [esi+ecx], al
|
||
jnz .notfound
|
||
inc edx
|
||
jnz .notfound
|
||
mov eax, [edi+8] ; .subfiles
|
||
push edx
|
||
jmp .scan1
|
||
.found1:
|
||
pop edi
|
||
; item is found, go to next component
|
||
lea edi, [eax+file_common.subfolders]
|
||
lea esi, [esi+ecx+1]
|
||
cmp byte [esi-1], 0
|
||
jnz .mainloop
|
||
; this was the last component
|
||
.notfound:
|
||
ret
|
||
|
||
; Memory streams handling.
|
||
; Archive handlers create memory stream for small files:
|
||
; size of which is not greater than (free RAM size)/4 and
|
||
; not greater than following constant...
|
||
;LIMIT_FOR_MEM_STREAM = 2*1024*1024
|
||
; ...if it is defined. Now the definition is commented:
|
||
; if user has many physical memory, why not to use it?
|
||
|
||
virtual at 0
|
||
mem_stream:
|
||
.type dd ? ; type_mem_stream
|
||
.size dd ?
|
||
.pos dd ?
|
||
.buf:
|
||
end virtual
|
||
|
||
; unsigned __stdcall read(ebx = HANDLE hFile, void* buf, unsigned size);
|
||
read_mem_stream:
|
||
mov eax, [esp+12]
|
||
mov ecx, [ebx+mem_stream.size]
|
||
sub ecx, [ebx+mem_stream.pos]
|
||
jnc @f
|
||
xor ecx, ecx
|
||
@@:
|
||
cmp eax, ecx
|
||
jb @f
|
||
mov eax, ecx
|
||
@@:
|
||
mov ecx, eax
|
||
lea esi, [ebx+mem_stream.buf]
|
||
add esi, [ebx+mem_stream.pos]
|
||
add [ebx+mem_stream.pos], eax
|
||
mov edi, [esp+8]
|
||
mov edx, ecx
|
||
shr ecx, 2
|
||
rep movsd
|
||
mov ecx, edx
|
||
and ecx, 3
|
||
rep movsb
|
||
ret 12
|
||
|
||
; void __stdcall setpos(ebx = HANDLE hFile, __int64 pos);
|
||
setpos_mem_stream:
|
||
mov eax, [esp+8]
|
||
mov [ebx+mem_stream.pos], eax
|
||
ret 12
|
||
|
||
; void __stdcall close(ebx = HANDLE hFile);
|
||
close_mem_stream:
|
||
mov ecx, ebx
|
||
call [pgfree]
|
||
ret 4
|
||
|
||
; Allocate handle for file
|
||
; esi -> handle table, ecx = size of handle
|
||
alloc_handle:
|
||
; Handle table is L2-list of allocated pages.
|
||
; Scan for free entry
|
||
mov edx, esi
|
||
@@:
|
||
mov edx, [edx]
|
||
cmp edx, esi
|
||
jz .alloc_new
|
||
mov eax, [edx+8] ; head of L1-list of free entries
|
||
test eax, eax ; has free entry?
|
||
jz @b
|
||
; we have found allocated page with free entry; allocate entry and return
|
||
inc dword [edx+12] ; number of busy entries
|
||
push dword [eax]
|
||
pop dword [edx+8]
|
||
.ret:
|
||
ret
|
||
.alloc_new:
|
||
; no free pages; get new page and initialize
|
||
push ecx
|
||
mov ecx, 0x1000
|
||
call [pgalloc]
|
||
pop ecx
|
||
test eax, eax
|
||
jz .ret
|
||
; insert new page to start of L2-list
|
||
mov edx, [esi]
|
||
mov [eax], edx
|
||
mov [esi], eax
|
||
mov [eax+4], esi
|
||
mov [edx+4], eax
|
||
mov dword [eax+12], 1 ; 1 allocated entry
|
||
; initialize list of free entries
|
||
lea edx, [eax+16]
|
||
push edx ; save return value
|
||
add edx, ecx
|
||
mov [eax+8], edx
|
||
add eax, 0x1000
|
||
@@:
|
||
mov esi, edx
|
||
add edx, ecx
|
||
mov [esi], edx
|
||
cmp edx, eax
|
||
jb @b
|
||
and dword [esi], 0
|
||
pop eax
|
||
ret
|
||
|
||
; Free handle allocated in previous procedure
|
||
; esi = handle
|
||
free_handle:
|
||
mov ecx, esi
|
||
and ecx, not 0xFFF ; get page
|
||
; add entry to head of L1-list of free entries
|
||
mov eax, [ecx+8]
|
||
mov [esi], eax
|
||
mov [ecx+8], esi
|
||
dec dword [ecx+12] ; decrement number of allocated entries
|
||
jnz .ret
|
||
; delete page from common L2-list
|
||
mov eax, [ecx]
|
||
mov edx, [ecx+4]
|
||
mov [eax+4], edx
|
||
mov [edx], eax
|
||
; free page
|
||
call [pgfree]
|
||
.ret:
|
||
ret
|
||
|
||
; Ask user to enter password.
|
||
; Out: ZF set <=> user pressed Esc
|
||
; 'password_ansi', 'password_unicode', 'password_size' filled
|
||
query_password:
|
||
cmp [bPasswordDefined], 0
|
||
jnz .ret
|
||
mov edi, password_data
|
||
mov eax, password_maxlen
|
||
stosd ; maximum length
|
||
xor eax, eax
|
||
stosd ; start of visible part
|
||
stosd ; position of cursor
|
||
stosb ; initial state: empty string
|
||
mov eax, [cur_console_size]
|
||
mov eax, [eax] ; get current console width
|
||
sub eax, 12
|
||
mov edi, password_dlg
|
||
mov [edi+password_dlg.width-password_dlg], eax
|
||
dec eax
|
||
dec eax
|
||
mov [edi+password_dlg.width1-password_dlg], eax
|
||
mov [edi+password_dlg.width2-password_dlg], eax
|
||
push edi
|
||
call [DialogBox]
|
||
inc eax
|
||
jz .ret
|
||
; convert ANSI-cp866 to UNICODE string; also calculate 'password_size'
|
||
mov esi, password_ansi
|
||
mov edi, password_unicode
|
||
or [password_size], -1
|
||
.cvt:
|
||
inc [password_size]
|
||
lodsb
|
||
mov ah, 0
|
||
; 0x00-0x7F - trivial map
|
||
cmp al, 0x80
|
||
jb .symb
|
||
; 0x80-0xAF -> 0x410-0x43F
|
||
cmp al, 0xB0
|
||
jae @f
|
||
add ax, 0x410-0x80
|
||
jmp .symb
|
||
@@:
|
||
; 0xE0-0xEF -> 0x440-0x44F
|
||
cmp al, 0xE0
|
||
jb .unk
|
||
cmp al, 0xF0
|
||
jae @f
|
||
add ax, 0x440-0xE0
|
||
jmp .symb
|
||
@@:
|
||
; 0xF0 -> 0x401
|
||
; 0xF1 -> 0x451
|
||
cmp al, '<27>'
|
||
jz .yo1
|
||
cmp al, '<27>'
|
||
jz .yo2
|
||
.unk:
|
||
mov al, '_'
|
||
jmp .symb
|
||
.yo1:
|
||
mov ax, 0x401
|
||
jmp .symb
|
||
.yo2:
|
||
mov ax, 0x451
|
||
.symb:
|
||
stosw
|
||
test al, al
|
||
jnz .cvt
|
||
inc [bPasswordDefined] ; clears ZF flag
|
||
.ret:
|
||
ret
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;;;; Initialized data ;;;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
; export table
|
||
align 4
|
||
EXPORTS:
|
||
dd aVersion, 2
|
||
dd aPluginLoad, plugin_load
|
||
dd aOpenFilePlugin,OpenFilePlugin
|
||
dd aClosePlugin, ClosePlugin
|
||
dd aReadFolder, ReadFolder
|
||
dd aSetFolder, SetFolder
|
||
dd aGetFiles, GetFiles
|
||
dd aGetOpenPluginInfo, GetOpenPluginInfo
|
||
dd aGetattr, mygetattr
|
||
dd aOpen, myopen
|
||
dd aRead, myread
|
||
dd aSetpos, mysetpos
|
||
dd aClose, myclose
|
||
dd 0
|
||
|
||
; exported names
|
||
aVersion db 'version',0
|
||
aPluginLoad db 'plugin_load',0
|
||
aOpenFilePlugin db 'OpenFilePlugin',0
|
||
aClosePlugin db 'ClosePlugin',0
|
||
aReadFolder db 'ReadFolder',0
|
||
aSetFolder db 'SetFolder',0
|
||
aGetFiles db 'GetFiles',0
|
||
aGetOpenPluginInfo db 'GetOpenPluginInfo',0
|
||
aGetattr db 'getattr',0
|
||
aOpen db 'open',0
|
||
aRead db 'read',0
|
||
aSetpos db 'setpos',0
|
||
aClose db 'close',0
|
||
|
||
; common strings
|
||
if lang eq ru
|
||
aContinue db '<27>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>',0
|
||
aCancel db '<27>⬥<EFBFBD><E2ACA5>',0
|
||
aHeaderError db '<27>訡<EFBFBD><E8A8A1> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>娢<EFBFBD>',0
|
||
aReadError db '<27>訡<EFBFBD><E8A8A1> <20>⥭<EFBFBD><E2A5AD>',0
|
||
aNoFreeRam db '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筮 <><E1A2AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>⨢<EFBFBD><E2A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>',0
|
||
aEncodingProblem db '<27><EFBFBD><E0AEA1><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><E0AEA2><EFBFBD>',0
|
||
aEncodingProblem_str db '<27><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䠩<><E4A0A9><EFBFBD> <20> <20><>娢<EFBFBD> ᮤ<>ঠ<EFBFBD> ᨬ<><E1A8AC><EFBFBD><EFBFBD>,',0
|
||
.2 db '<27><> <20>।<EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><E0AEA2> cp866.',0
|
||
.3 db '<27><><EFBFBD> ᨬ<><E1A8AC><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>ન<EFBFBD><E0AAA8><EFBFBD><EFBFBD><EFBFBD>.',0
|
||
aEnterPassword db '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>:',0
|
||
aEnterPasswordLen = $ - aEnterPassword - 1
|
||
aEnterPasswordTitle db '<27><><EFBFBD><EFBFBD> <20><><EFBFBD>',0
|
||
aArchiveDataError db '<27>訡<EFBFBD><E8A8A1> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>娢<EFBFBD>',0
|
||
aArchiveDataErrorPass db '<27>訡<EFBFBD><E8A8A1> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>娢<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>',0
|
||
aChangePass db '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>',0
|
||
aNameTooLong db '<27><><EFBFBD>誮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>',0
|
||
aCannotOpenFile db '<27><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䠩<>',0
|
||
else
|
||
aContinue db 'Continue',0
|
||
aCancel db 'Cancel',0
|
||
aHeaderError db 'Invalid archive header',0
|
||
aReadError db 'Read error',0
|
||
aNoFreeRam db 'There is not enough of free RAM',0
|
||
aEncodingProblem db 'Encoding problem',0
|
||
aEncodingProblem_str db 'The names of some files in the archive contain',0
|
||
.2 db 'characters which can not be represented in cp866.',0
|
||
.3 db 'Such characters will be replaced to underscores.',0
|
||
aEnterPassword db 'Enter password:',0
|
||
aEnterPasswordLen = $ - aEnterPassword - 1
|
||
aEnterPasswordTitle db 'Get password',0
|
||
aArchiveDataError db 'Error in archive data',0
|
||
aArchiveDataErrorPass db 'Error in archive data or incorrect password',0
|
||
aChangePass db 'Enter password',0
|
||
aNameTooLong db 'Name is too long',0
|
||
aCannotOpenFile db 'Cannot open file',0
|
||
end if
|
||
|
||
; kfar_arc supports many archive types.
|
||
; OpenFilePlugin looks for supported archive signature and gives control
|
||
; to concrete handler if found.
|
||
; Other functions just determine type of opened archive and jump to corresponding handler.
|
||
type_mem_stream = 0 ; memory stream - for file handles (returned from 'open')
|
||
type_7z = 1
|
||
type_zip = 2
|
||
|
||
; archive functions (types start from type_7z)
|
||
align 4
|
||
ClosePluginTable:
|
||
dd close_7z
|
||
dd close_zip
|
||
getattrTable:
|
||
dd getattr_7z
|
||
dd getattr_zip
|
||
openTable:
|
||
dd open_file_7z
|
||
dd open_file_zip
|
||
basesizes:
|
||
dd handle_7z.basesize, file_in_7z.size
|
||
dd handle_zip.basesize, file_in_zip.size
|
||
|
||
; file functions (types start from type_mem_stream)
|
||
readTable:
|
||
dd read_mem_stream
|
||
dd read_7z
|
||
dd read_zip
|
||
setposTable:
|
||
dd setpos_mem_stream
|
||
dd setpos_7z
|
||
dd setpos_zip
|
||
closeTable:
|
||
dd close_mem_stream
|
||
dd close_file_7z
|
||
dd close_file_zip
|
||
|
||
; pointers for SayErr and Message
|
||
ContinueBtn dd aContinue
|
||
HeaderError_ptr dd aHeaderError
|
||
aReadError_ptr dd aReadError
|
||
aNoFreeRam_ptr dd aNoFreeRam
|
||
aEncodingProblem_str_ptr:
|
||
dd aEncodingProblem_str
|
||
dd aEncodingProblem_str.2
|
||
dd aEncodingProblem_str.3
|
||
aNameTooLong_ptr dd aNameTooLong
|
||
aArchiveDataError_ptr dd aArchiveDataError
|
||
aArchiveDataErrorPass_ptr dd aArchiveDataErrorPass
|
||
CancelPassBtn dd aCancel
|
||
dd aChangePass
|
||
|
||
; "enter password" dialog for KFar
|
||
password_dlg:
|
||
dd 1 ; use standard dialog colors
|
||
dd -1 ; center window by x
|
||
dd -1 ; center window by y
|
||
.width dd ? ; width (will be filled according to current console width)
|
||
dd 2 ; height
|
||
dd 4, 2 ; border size
|
||
dd aEnterPasswordTitle ; title
|
||
dd ? ; colors (will be set by KFar)
|
||
dd 0, 0 ; reserved for DlgProc
|
||
dd 2 ; 2 controls
|
||
; the string "enter password"
|
||
dd 1 ; type: static
|
||
dd 1,0 ; upper-left position
|
||
.width1 dd ?,0 ; bottom-right position
|
||
dd aEnterPassword ; data
|
||
dd 0 ; flags
|
||
; editbox for password
|
||
dd 3 ; type: edit
|
||
dd 1,1 ; upper-left position
|
||
.width2 dd ?,0 ; bottom-right position
|
||
dd password_data ; data
|
||
dd 2Ch ; flags
|
||
|
||
IncludeIGlobals
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;;; Uninitialized data ;;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
section '.udata' data readable writable align 16
|
||
kfar_info dd ?
|
||
crc_table rd 256
|
||
_esp dd ?
|
||
_ebp dd ?
|
||
bufsize dd ?
|
||
bufptr dd ?
|
||
bufend dd ?
|
||
buffer rb 1024
|
||
inStream dd ?
|
||
hOut dd ?
|
||
.allocated dd ?
|
||
|
||
error_proc dd ?
|
||
clear_proc dd ?
|
||
|
||
; import from kfar
|
||
open2 dd ?
|
||
filesize dd ?
|
||
read dd ?
|
||
seek dd ?
|
||
close dd ?
|
||
pgalloc dd ?
|
||
pgrealloc dd ?
|
||
pgfree dd ?
|
||
getfreemem dd ?
|
||
DialogBox dd ?
|
||
SayErr dd ?
|
||
Message dd ?
|
||
cur_console_size dd ?
|
||
|
||
; data for editbox in kfar dialog
|
||
password_maxlen = 512
|
||
password_data:
|
||
.maxlen dd ?
|
||
.pos dd ?
|
||
.start dd ?
|
||
password_ansi rb password_maxlen+1
|
||
bPasswordDefined db ?
|
||
|
||
; converted password
|
||
password_unicode rw password_maxlen+1
|
||
password_size dd ?
|
||
|
||
IncludeUGlobals
|
||
|
||
bWasWarning db ?
|