mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-21 06:12:34 +03:00
804 lines
32 KiB
NASM
804 lines
32 KiB
NASM
|
;;================================================================================================;;
|
||
|
|
;;//// libio.asm //// (c) mike.dld, 2006-2008 ////////////////////////////////////////////////////;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
;; ;;
|
||
|
|
;; This file is part of Common development libraries (Libs-Dev). ;;
|
||
|
|
;; ;;
|
||
|
|
;; Libs-Dev is free software: you can redistribute it and/or modify it under the terms of the GNU ;;
|
||
|
|
;; General Public License as published by the Free Software Foundation, either version 3 of the ;;
|
||
|
|
;; License, or (at your option) any later version. ;;
|
||
|
|
;; ;;
|
||
|
|
;; Libs-Dev is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without ;;
|
||
|
|
;; even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;;
|
||
|
|
;; General Public License for more details. ;;
|
||
|
|
;; ;;
|
||
|
|
;; You should have received a copy of the GNU General Public License along with Libs-Dev. If not, ;;
|
||
|
|
;; see <http://www.gnu.org/licenses/>. ;;
|
||
|
|
;; ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
;; ;;
|
||
|
|
;; 2007-12-10 (mike.dld) ;;
|
||
|
|
;; changes: ;;
|
||
|
|
;; - almost fully incompatible with previous version since return values were changed. ;;
|
||
|
|
;; now they are more C-like ;;
|
||
|
|
;; notes: ;;
|
||
|
|
;; - `file.err` is not yet available ;;
|
||
|
|
;; 2007-09-26 (mike.dld) ;;
|
||
|
|
;; changes: ;;
|
||
|
|
;; - modified `file.size` a bit (according to changes in FileInfo struct) ;;
|
||
|
|
;; - added `file.find_first`, `file.find_next`, `file.find_close` ;;
|
||
|
|
;; notes: ;;
|
||
|
|
;; - `file.aux.match_wildcard` is exported only for testing purposes, don't ;;
|
||
|
|
;; use it since it may be removed or renamed in next versions ;;
|
||
|
|
;; ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
|
||
|
|
|
||
|
|
format MS COFF
|
||
|
|
|
||
|
|
public @EXPORT as 'EXPORTS'
|
||
|
|
|
||
|
|
include '../../../../proc32.inc'
|
||
|
|
include '../../../../macros.inc'
|
||
|
|
purge section;mov,add,sub
|
||
|
|
|
||
|
|
include 'libio.inc'
|
||
|
|
include 'libio_p.inc'
|
||
|
|
|
||
|
|
section '.flat' code readable align 16
|
||
|
|
|
||
|
|
mem.alloc dd ?
|
||
|
|
mem.free dd ?
|
||
|
|
mem.realloc dd ?
|
||
|
|
dll.load dd ?
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc lib_init ;///////////////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Library entry point (called after library load) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> eax = pointer to memory allocation routine ;;
|
||
|
|
;> ebx = pointer to memory freeing routine ;;
|
||
|
|
;> ecx = pointer to memory reallocation routine ;;
|
||
|
|
;> edx = pointer to library loading routine ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = 1 (fail) / 0 (ok) (library initialization result) ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
mov [mem.alloc], eax
|
||
|
|
mov [mem.free], ebx
|
||
|
|
mov [mem.realloc], ecx
|
||
|
|
mov [dll.load], edx
|
||
|
|
xor eax, eax
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.aux.match_wildcard _str, _wcard ;///////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Match string against wildcard ;;
|
||
|
|
;? Based on http://user.cs.tu-berlin.de/~schintke/references/wildcards/ ;;
|
||
|
|
;? 1997-2001 (c) Florian Schintke ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _str = pointer to string (filename in most cases) ;;
|
||
|
|
;> _wcard = pointer to string (mask expressed using wilcards (?, *, [..])) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = false / true (match result) ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
push ecx edx esi edi
|
||
|
|
mov dl, 1 ; fit
|
||
|
|
mov esi, [_wcard]
|
||
|
|
mov edi, [_str]
|
||
|
|
.loop_wildcard:
|
||
|
|
mov al, [esi]
|
||
|
|
or al, al
|
||
|
|
jz .loop_wildcard_exit
|
||
|
|
or dl, dl
|
||
|
|
jz .loop_wildcard_exit
|
||
|
|
cmp byte[edi], 0
|
||
|
|
je .loop_wildcard_exit
|
||
|
|
|
||
|
|
cmp al, '['
|
||
|
|
je .process_set
|
||
|
|
cmp al, '?'
|
||
|
|
je .process_question
|
||
|
|
cmp al, '*'
|
||
|
|
je .process_asterisk
|
||
|
|
|
||
|
|
xor dl, dl
|
||
|
|
cmp [edi], al
|
||
|
|
jne @f
|
||
|
|
inc dl
|
||
|
|
@@: inc edi
|
||
|
|
|
||
|
|
.loop_wildcard_next:
|
||
|
|
inc esi
|
||
|
|
jmp .loop_wildcard
|
||
|
|
|
||
|
|
|
||
|
|
.process_set:
|
||
|
|
inc esi
|
||
|
|
xor dl, dl ; fit
|
||
|
|
xor dh, dh ; negation
|
||
|
|
mov cl, 1 ; at_beginning
|
||
|
|
cmp byte[esi], '^'
|
||
|
|
jne .loop_set_wildcard
|
||
|
|
inc dh
|
||
|
|
inc esi
|
||
|
|
|
||
|
|
.loop_set_wildcard:
|
||
|
|
mov al, [esi]
|
||
|
|
cmp al, ']'
|
||
|
|
jne @f
|
||
|
|
or cl, cl
|
||
|
|
jz .loop_set_wildcard_exit
|
||
|
|
@@: or dl, dl
|
||
|
|
jnz .loop_set_wildcard_fit
|
||
|
|
cmp al, '-'
|
||
|
|
jne .loop_set_wildcard_not_range
|
||
|
|
mov ch, [esi - 1]
|
||
|
|
cmp [esi + 1], ch
|
||
|
|
jbe .loop_set_wildcard_not_range
|
||
|
|
cmp byte[esi + 1], ']'
|
||
|
|
je .loop_set_wildcard_not_range
|
||
|
|
or cl, cl
|
||
|
|
jnz .loop_set_wildcard_not_range
|
||
|
|
cmp [edi], ch
|
||
|
|
jb .loop_set_wildcard_fit
|
||
|
|
mov ch, [esi + 1]
|
||
|
|
cmp [edi], ch
|
||
|
|
ja .loop_set_wildcard_fit
|
||
|
|
mov dl, 1
|
||
|
|
inc esi
|
||
|
|
jmp .loop_set_wildcard_fit
|
||
|
|
|
||
|
|
.loop_set_wildcard_not_range:
|
||
|
|
cmp [edi], al
|
||
|
|
jne .loop_set_wildcard_fit
|
||
|
|
mov dl, 1
|
||
|
|
|
||
|
|
.loop_set_wildcard_fit:
|
||
|
|
inc esi
|
||
|
|
xor cl, cl
|
||
|
|
jmp .loop_set_wildcard
|
||
|
|
|
||
|
|
.loop_set_wildcard_exit:
|
||
|
|
or dh, dh
|
||
|
|
jz @f
|
||
|
|
xor dl, 1
|
||
|
|
@@: or dl, dl
|
||
|
|
jz @f
|
||
|
|
inc edi
|
||
|
|
@@:
|
||
|
|
jmp .loop_wildcard_next
|
||
|
|
|
||
|
|
.process_question:
|
||
|
|
inc edi
|
||
|
|
jmp .loop_wildcard_next
|
||
|
|
|
||
|
|
.process_asterisk:
|
||
|
|
mov dl, 1
|
||
|
|
inc esi
|
||
|
|
|
||
|
|
.loop_asterisk_del_shit:
|
||
|
|
lodsb
|
||
|
|
cmp byte[edi], 0
|
||
|
|
je .loop_asterisk_del_shit_exit
|
||
|
|
cmp al, '?'
|
||
|
|
jne @f
|
||
|
|
inc edi
|
||
|
|
jmp .loop_asterisk_del_shit
|
||
|
|
@@: cmp al, '*'
|
||
|
|
je .loop_asterisk_del_shit
|
||
|
|
|
||
|
|
.loop_asterisk_del_shit_exit:
|
||
|
|
|
||
|
|
@@: cmp al, '*'
|
||
|
|
jne @f
|
||
|
|
lodsb
|
||
|
|
jmp @b
|
||
|
|
@@:
|
||
|
|
dec esi
|
||
|
|
cmp byte[edi], 0
|
||
|
|
jne .process_asterisk_skip_exit
|
||
|
|
xor dl, dl
|
||
|
|
or al, al
|
||
|
|
jnz @f
|
||
|
|
inc dl
|
||
|
|
@@: dec esi
|
||
|
|
jmp .loop_wildcard_next
|
||
|
|
|
||
|
|
.process_asterisk_skip_exit:
|
||
|
|
stdcall file.aux.match_wildcard, edi, esi
|
||
|
|
or eax, eax
|
||
|
|
jnz .process_asterisk_not_match
|
||
|
|
|
||
|
|
.loop_asterisk_match:
|
||
|
|
inc edi
|
||
|
|
|
||
|
|
.loop_asterisk_char_match:
|
||
|
|
mov al, [esi]
|
||
|
|
cmp [edi], al
|
||
|
|
je .loop_asterisk_char_match_exit
|
||
|
|
cmp byte[esi], '['
|
||
|
|
je .loop_asterisk_char_match_exit
|
||
|
|
cmp byte[edi], 0
|
||
|
|
je .loop_asterisk_char_match_exit
|
||
|
|
inc edi
|
||
|
|
jmp .loop_asterisk_char_match
|
||
|
|
|
||
|
|
.loop_asterisk_char_match_exit:
|
||
|
|
cmp byte[edi], 0
|
||
|
|
je @f
|
||
|
|
stdcall file.aux.match_wildcard, edi, esi
|
||
|
|
or eax, eax
|
||
|
|
jnz .loop_asterisk_match_exit
|
||
|
|
jmp .loop_asterisk_match
|
||
|
|
@@:
|
||
|
|
xor dl, dl
|
||
|
|
|
||
|
|
.loop_asterisk_match_exit:
|
||
|
|
|
||
|
|
.process_asterisk_not_match:
|
||
|
|
cmp byte[esi], 0
|
||
|
|
jne @f
|
||
|
|
cmp byte[edi], 0
|
||
|
|
jne @f
|
||
|
|
mov dl, 1
|
||
|
|
@@:
|
||
|
|
dec esi
|
||
|
|
jmp .loop_wildcard_next
|
||
|
|
|
||
|
|
.loop_wildcard_exit:
|
||
|
|
or dl, dl
|
||
|
|
jz .exit
|
||
|
|
@@: cmp byte[esi], '*'
|
||
|
|
jne .exit
|
||
|
|
inc esi
|
||
|
|
jmp @b
|
||
|
|
|
||
|
|
.exit:
|
||
|
|
cmp byte[esi], 0
|
||
|
|
je @f
|
||
|
|
xor dl, dl
|
||
|
|
@@: cmp byte[edi], 0
|
||
|
|
je @f
|
||
|
|
xor dl, dl
|
||
|
|
@@:
|
||
|
|
movzx eax, dl
|
||
|
|
|
||
|
|
pop edi esi edx ecx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.aux.find_matching_file _ffb ;///////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Find file with matching attributes (`FindFileBlock.Options.Attributes`) and mask ;;
|
||
|
|
;? (`FindFileBlock.Options.Mask`) starting from Nth (`FindFileBlock.InfoBlock.Position`) file in ;;
|
||
|
|
;? directory (`FindFileBlock.InfoBlock.FileName`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _ffb = pointer to FindFileBlock ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = 0 (error) / pointer to `FileInfo` with matched file data ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
push ebx edx
|
||
|
|
mov edx, [_ffb]
|
||
|
|
.loop_find:
|
||
|
|
lea ebx, [edx + FindFileBlock.InfoBlock]
|
||
|
|
mcall 70
|
||
|
|
or eax, eax
|
||
|
|
jnz .loop_find_error
|
||
|
|
mov eax, [edx + FindFileBlock.Info.Attributes]
|
||
|
|
and eax, [edx + FindFileBlock.Options.Attributes]
|
||
|
|
jz .loop_find_next
|
||
|
|
lea eax, [edx + FindFileBlock.Info.FileName]
|
||
|
|
stdcall file.aux.match_wildcard, eax, [edx + FindFileBlock.Options.Mask]
|
||
|
|
or eax, eax
|
||
|
|
jnz .loop_find_exit
|
||
|
|
|
||
|
|
.loop_find_next:
|
||
|
|
inc [edx + FindFileBlock.InfoBlock.Position]
|
||
|
|
jmp .loop_find
|
||
|
|
|
||
|
|
.loop_find_error:
|
||
|
|
xor eax, eax
|
||
|
|
pop edx ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.loop_find_exit:
|
||
|
|
lea eax, [edx + FindFileBlock.Info]
|
||
|
|
pop edx ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.find_first _dir, _mask, _attr ;/////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Find first file with matching attributes and mask in specified directory ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _dir = pointer to string (directory path to search in) ;;
|
||
|
|
;> _mask = pointer to string (file mask, with use of wildcards) ;;
|
||
|
|
;> _attr = file attributes mask (combination of FA_* constants) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = 0 (error) / pointer to `FileInfo` with matched file data (acts as find descriptor) ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
push ebx edx
|
||
|
|
|
||
|
|
invoke mem.alloc, sizeof.FindFileBlock
|
||
|
|
or eax, eax
|
||
|
|
jz .exit.error
|
||
|
|
mov edx, eax
|
||
|
|
mov ebx, [_attr]
|
||
|
|
mov [edx + FindFileBlock.Options.Attributes], ebx
|
||
|
|
mov ebx, [_mask]
|
||
|
|
mov [edx + FindFileBlock.Options.Mask], ebx
|
||
|
|
|
||
|
|
lea ebx, [edx + FindFileBlock.InfoBlock]
|
||
|
|
mov [ebx + FileInfoBlock.Function], F70_READ_D
|
||
|
|
mov [ebx + FileInfoBlock.Count], 1
|
||
|
|
lea eax, [edx + FindFileBlock.Header]
|
||
|
|
mov [ebx + FileInfoBlock.Buffer], eax
|
||
|
|
mov eax, [_dir]
|
||
|
|
mov [ebx + FileInfoBlock.FileName], eax
|
||
|
|
|
||
|
|
stdcall file.aux.find_matching_file, edx
|
||
|
|
pop edx ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit.error:
|
||
|
|
xor eax, eax
|
||
|
|
pop edx ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.find_next _findd ;//////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Find next file matching criteria ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _findd = find descriptor (see `file.find_first`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = 0 (error) / pointer to `FileInfo` with matched file data (acts as find descriptor) ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
mov eax, [_findd]
|
||
|
|
add eax, -sizeof.FileInfoHeader
|
||
|
|
inc [eax + FindFileBlock.InfoBlock.Position]
|
||
|
|
stdcall file.aux.find_matching_file, eax
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.find_close _findd ;/////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Close find descriptor and free memory ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _findd = find descriptor (see `file.find_first`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = result of memory freeing routine ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
mov eax, [_findd]
|
||
|
|
add eax, -sizeof.FileInfoHeader
|
||
|
|
invoke mem.free, eax
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.size _name ;////////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Get file size ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _name = path to file (full or relative) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / file size (in bytes, up to 2G) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
locals
|
||
|
|
loc_info FileInfoBlock
|
||
|
|
endl
|
||
|
|
|
||
|
|
lea ebx, [loc_info]
|
||
|
|
invoke mem.alloc, 40
|
||
|
|
push eax
|
||
|
|
mov [ebx + FileInfoBlock.Function], F70_GETATTR_FD
|
||
|
|
mov [ebx + FileInfoBlock.Buffer], eax
|
||
|
|
mov byte[ebx + FileInfoBlock.FileName - 1], 0
|
||
|
|
mov eax, [_name]
|
||
|
|
mov [ebx + FileInfoBlock.FileName], eax
|
||
|
|
mcall 70
|
||
|
|
pop ebx
|
||
|
|
push eax
|
||
|
|
mov eax, ebx
|
||
|
|
mov ebx, [ebx + FileInfo.FileSizeLow]
|
||
|
|
invoke mem.free, eax
|
||
|
|
pop eax
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.open _name, _mode ;/////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Open file ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _name = path to file (full or relative) ;;
|
||
|
|
;> _mode = mode to open file in (combination of O_* constants) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = 0 (error) / file descriptor ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
locals
|
||
|
|
loc_info FileInfoBlock
|
||
|
|
loc_buf rb 40
|
||
|
|
endl
|
||
|
|
|
||
|
|
push ebx esi edi
|
||
|
|
|
||
|
|
xor ebx, ebx
|
||
|
|
invoke mem.alloc, sizeof.InternalFileInfo
|
||
|
|
or eax, eax
|
||
|
|
jz .exit_error
|
||
|
|
mov ebx, eax
|
||
|
|
push [_mode]
|
||
|
|
pop [ebx + InternalFileInfo.Mode]
|
||
|
|
mov [ebx + InternalFileInfo.Position], 0
|
||
|
|
lea edi, [ebx + InternalFileInfo.FileName]
|
||
|
|
mov esi, [_name]
|
||
|
|
mov ecx, 260 / 4
|
||
|
|
cld
|
||
|
|
rep movsd
|
||
|
|
|
||
|
|
.get_info:
|
||
|
|
push ebx
|
||
|
|
mov [loc_info.Function], F70_GETATTR_FD
|
||
|
|
lea eax, [loc_buf]
|
||
|
|
mov [loc_info.Buffer], eax
|
||
|
|
mov byte[loc_info.FileName - 1], 0
|
||
|
|
mov eax, [_name]
|
||
|
|
mov [loc_info.FileName], eax
|
||
|
|
lea ebx, [loc_info]
|
||
|
|
mcall 70
|
||
|
|
pop ebx
|
||
|
|
or eax, eax
|
||
|
|
jz @f
|
||
|
|
cmp eax, 6
|
||
|
|
jne .exit_error.ex
|
||
|
|
@@:
|
||
|
|
mov eax, ebx
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit_error.ex:
|
||
|
|
test [_mode], O_CREATE
|
||
|
|
jz .exit_error
|
||
|
|
push ebx
|
||
|
|
mov [loc_info.Function], F70_CREATE_F
|
||
|
|
xor eax, eax
|
||
|
|
mov [loc_info.Position], eax
|
||
|
|
mov [loc_info.Flags], eax
|
||
|
|
mov [loc_info.Count], eax
|
||
|
|
lea ebx, [loc_info]
|
||
|
|
mcall 70
|
||
|
|
pop ebx
|
||
|
|
or eax, eax
|
||
|
|
jz .get_info
|
||
|
|
|
||
|
|
.exit_error:
|
||
|
|
invoke mem.free, ebx
|
||
|
|
xor eax, eax
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.read _filed, _buf, _buflen ;////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Read data from file ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;> _buf = pointer to buffer to put read data to ;;
|
||
|
|
;> _buflen = buffer size (number of bytes to be read from file) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / number of bytes read ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
locals
|
||
|
|
loc_info FileInfoBlock
|
||
|
|
endl
|
||
|
|
|
||
|
|
push ebx esi edi
|
||
|
|
|
||
|
|
mov ebx, [_filed]
|
||
|
|
test [ebx + InternalFileInfo.Mode], O_READ
|
||
|
|
jz .exit_error
|
||
|
|
|
||
|
|
xor eax, eax
|
||
|
|
mov [loc_info.Function], F70_READ_F
|
||
|
|
mov [loc_info.Flags], eax
|
||
|
|
mov byte[loc_info.FileName - 1], al
|
||
|
|
push [ebx+InternalFileInfo.Position] [_buflen] [_buf]
|
||
|
|
pop [loc_info.Buffer] [loc_info.Count] [loc_info.Position]
|
||
|
|
lea eax, [ebx + InternalFileInfo.FileName]
|
||
|
|
mov [loc_info.FileName], eax
|
||
|
|
lea ebx, [loc_info]
|
||
|
|
mcall 70
|
||
|
|
or eax, eax
|
||
|
|
jz @f
|
||
|
|
cmp eax, 6
|
||
|
|
jne .exit_error
|
||
|
|
@@:
|
||
|
|
mov eax, ebx
|
||
|
|
mov ebx, [_filed]
|
||
|
|
add [ebx + InternalFileInfo.Position], eax
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit_error:
|
||
|
|
or eax, -1
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.write _filed, _buf, _buflen ;///////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Write data to file ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;> _buf = pointer to buffer to get write data from ;;
|
||
|
|
;> _buflen = buffer size (number of bytes to be written to file) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / number of bytes written ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
locals
|
||
|
|
loc_info FileInfoBlock
|
||
|
|
endl
|
||
|
|
|
||
|
|
push ebx esi edi
|
||
|
|
|
||
|
|
mov ebx, [_filed]
|
||
|
|
test [ebx + InternalFileInfo.Mode], O_WRITE
|
||
|
|
jz .exit_error
|
||
|
|
|
||
|
|
stdcall file.eof?, [_filed]
|
||
|
|
or eax, eax
|
||
|
|
js .exit_error
|
||
|
|
jz @f
|
||
|
|
stdcall file.truncate, [_filed]
|
||
|
|
@@:
|
||
|
|
mov [loc_info.Function], F70_WRITE_F
|
||
|
|
xor eax, eax
|
||
|
|
mov [loc_info.Flags], eax
|
||
|
|
mov byte[loc_info.FileName - 1], al
|
||
|
|
push [ebx + InternalFileInfo.Position] [_buflen] [_buf]
|
||
|
|
pop [loc_info.Buffer] [loc_info.Count] [loc_info.Position]
|
||
|
|
lea eax, [ebx + InternalFileInfo.FileName]
|
||
|
|
mov [loc_info.FileName], eax
|
||
|
|
lea ebx, [loc_info]
|
||
|
|
mcall 70
|
||
|
|
or eax, eax
|
||
|
|
jnz .exit_error
|
||
|
|
@@:
|
||
|
|
mov eax, ebx
|
||
|
|
mov ebx, [_filed]
|
||
|
|
add [ebx + InternalFileInfo.Position],eax
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit_error:
|
||
|
|
or eax, -1
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.seek _filed, _where, _origin ;//////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Set file pointer position ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;> _where = position in file (in bytes) counted from specified origin ;;
|
||
|
|
;> _origin = origin from where to set the position (one of SEEK_* constants) ;;
|
||
|
|
;> SEEK_SET - from beginning of file ;;
|
||
|
|
;> SEEK_CUR - from current pointer position ;;
|
||
|
|
;> SEEK_END - from end of file ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / 0 ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
push ebx ecx edx
|
||
|
|
|
||
|
|
mov ecx, [_filed]
|
||
|
|
lea eax, [ecx + InternalFileInfo.FileName]
|
||
|
|
stdcall file.size, eax
|
||
|
|
or eax, eax
|
||
|
|
jnz .exit_error
|
||
|
|
mov edx, [_where]
|
||
|
|
cmp [_origin], SEEK_SET
|
||
|
|
jne .n_set
|
||
|
|
mov [ecx + InternalFileInfo.Position], edx
|
||
|
|
jmp .exit_ok
|
||
|
|
|
||
|
|
.n_set:
|
||
|
|
cmp [_origin], SEEK_CUR
|
||
|
|
jne .n_cur
|
||
|
|
add [ecx + InternalFileInfo.Position], edx
|
||
|
|
jmp .exit_ok
|
||
|
|
|
||
|
|
.n_cur:
|
||
|
|
cmp [_origin], SEEK_END
|
||
|
|
jne .exit_error
|
||
|
|
neg edx
|
||
|
|
add edx, ebx
|
||
|
|
mov [ecx + InternalFileInfo.Position], edx
|
||
|
|
|
||
|
|
.exit_ok:
|
||
|
|
|
||
|
|
cmp [ecx + InternalFileInfo.Position], 0
|
||
|
|
jge @f
|
||
|
|
mov [ecx + InternalFileInfo.Position], 0
|
||
|
|
@@:
|
||
|
|
; cmp ebx, [ecx+InternalFileInfo.Position]
|
||
|
|
; jae @f
|
||
|
|
; mov [ecx + InternalFileInfo.Position], ebx
|
||
|
|
; @@:
|
||
|
|
xor eax, eax
|
||
|
|
pop edx ecx ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit_error:
|
||
|
|
or eax, -1
|
||
|
|
pop edx ecx ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.eof? _filed ;///////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Determine if file pointer is at the end of file ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = false / true ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
push ebx ecx
|
||
|
|
|
||
|
|
mov ecx, [_filed]
|
||
|
|
lea eax, [ecx + InternalFileInfo.FileName]
|
||
|
|
stdcall file.size, eax
|
||
|
|
or eax, eax
|
||
|
|
jnz .exit_error
|
||
|
|
|
||
|
|
xor eax, eax
|
||
|
|
cmp [ecx + InternalFileInfo.Position], ebx
|
||
|
|
jb @f
|
||
|
|
inc eax
|
||
|
|
@@: pop ecx ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit_error:
|
||
|
|
or eax, -1
|
||
|
|
pop ecx ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.truncate _filed ;///////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Truncate file size to current file pointer position ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / 0 ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
locals
|
||
|
|
loc_info FileInfoBlock
|
||
|
|
endl
|
||
|
|
|
||
|
|
push ebx esi edi
|
||
|
|
|
||
|
|
mov ebx, [_filed]
|
||
|
|
test [ebx + InternalFileInfo.Mode], O_WRITE
|
||
|
|
jz .exit_error
|
||
|
|
|
||
|
|
mov [loc_info.Function], F70_SETSIZE_F
|
||
|
|
mov eax, [ebx + InternalFileInfo.Position]
|
||
|
|
mov [loc_info.Position], eax
|
||
|
|
xor eax, eax
|
||
|
|
mov [loc_info.Flags], eax
|
||
|
|
mov [loc_info.Count], eax
|
||
|
|
mov [loc_info.Buffer], eax
|
||
|
|
mov byte[loc_info.FileName - 1], al
|
||
|
|
lea eax, [ebx + InternalFileInfo.FileName]
|
||
|
|
mov [loc_info.FileName], eax
|
||
|
|
lea ebx, [loc_info]
|
||
|
|
mcall 70
|
||
|
|
cmp eax, 2
|
||
|
|
je .exit_error
|
||
|
|
cmp eax, 8
|
||
|
|
je .exit_error
|
||
|
|
@@: xor eax, eax
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
|
||
|
|
.exit_error:
|
||
|
|
or eax, -1
|
||
|
|
pop edi esi ebx
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
file.seteof equ file.truncate
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.tell _filed ;///////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Get current file pointer position ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / file pointer position ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
mov eax, [_filed]
|
||
|
|
mov eax, [eax + InternalFileInfo.Position]
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
proc file.close _filed ;//////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;? Close file ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;> _filed = file descriptor (see `file.open`) ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;< eax = -1 (error) / file pointer position ;;
|
||
|
|
;;------------------------------------------------------------------------------------------------;;
|
||
|
|
;# call `file.err` to obtain extended error information ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
mov eax, [_filed]
|
||
|
|
mov [eax + InternalFileInfo.Mode], 0
|
||
|
|
mov [eax + InternalFileInfo.FileName], 0
|
||
|
|
invoke mem.free, eax
|
||
|
|
xor eax, eax
|
||
|
|
ret
|
||
|
|
endp
|
||
|
|
|
||
|
|
|
||
|
|
;;================================================================================================;;
|
||
|
|
;;////////////////////////////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
;! Exported functions section ;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
;;////////////////////////////////////////////////////////////////////////////////////////////////;;
|
||
|
|
;;================================================================================================;;
|
||
|
|
|
||
|
|
|
||
|
|
align 16
|
||
|
|
@EXPORT:
|
||
|
|
|
||
|
|
export \
|
||
|
|
lib_init , 'lib_init' , \
|
||
|
|
0x00030003 , 'version' , \
|
||
|
|
file.find_first , 'file.find_first' , \
|
||
|
|
file.find_next , 'file.find_next' , \
|
||
|
|
file.find_close , 'file.find_close' , \
|
||
|
|
file.size , 'file.size' , \
|
||
|
|
file.open , 'file.open' , \
|
||
|
|
file.read , 'file.read' , \
|
||
|
|
file.write , 'file.write' , \
|
||
|
|
file.seek , 'file.seek' , \
|
||
|
|
file.tell , 'file.tell' , \
|
||
|
|
file.eof? , 'file.eof?' , \
|
||
|
|
file.seteof , 'file.seteof' , \
|
||
|
|
file.truncate , 'file.truncate' , \
|
||
|
|
file.close , 'file.close'
|