WebSVN – Kolibri OS – Blame – /kernel/trunk/fs/fs_lfn.inc

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
6462	pathoswith	3	;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License. ;;
2288	clevermous	5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
		8	$Revision: 10016 $
		9
2889	turbanoff	10	ERROR_SUCCESS = 0
		11	ERROR_DISK_BASE = 1
		12	ERROR_UNSUPPORTED_FS = 2
		13	ERROR_UNKNOWN_FS = 3
		14	ERROR_PARTITION = 4
		15	ERROR_FILE_NOT_FOUND = 5
		16	ERROR_END_OF_FILE = 6
		17	ERROR_MEMORY_POINTER = 7
		18	ERROR_DISK_FULL = 8
		19	ERROR_FS_FAIL = 9
		20	ERROR_ACCESS_DENIED = 10
		21	ERROR_DEVICE = 11
2288	clevermous	22
6468	pathoswith	23	maxPathLength = 1000h
		24
2288	clevermous	25	image_of_eax EQU esp+32
		26	image_of_ebx EQU esp+20
		27
9894	Doczom	28	; fs api for drivers
		29	struct FileSystem
		30	Next dd ?
		31	Prev dd ?
		32	Creat_part dd ? ; %FSNAME%_create_partition
		33	UserFuncs dd ? ; for fs_del
		34	Name rd 16 ;ascii string + \n
		35	ends
		36
		37
		38	fs_list:
		39	dd fs_list
		40	dd fs_list
		41	;.look: dd 0
		42
		43	; IN: ecx = %FSNAME%_create_partition
		44	; edx = ptr to UserFuncs
		45	; [esp] = fs name
		46	;OUT: eax = list item
		47	fs_add:
		48	push ecx edx
		49	; add in fs_list
		50	mov eax, sizeof.FileSystem
		51	call malloc
		52	pop edx ecx
		53	test eax, eax
		54	jz .err
		55
		56	mov [eax + FileSystem.Creat_part], ecx
		57	mov [eax + FileSystem.UserFuncs], edx
		58	mov edx, [esp + 4]
		59	mov [eax + FileSystem.Name], edx
		60	mov edx, eax
		61
		62	cli ; DELETE
		63	list_add_tail edx, fs_list
		64	sti ; DELETE
		65	mov edx, ecx ; save function
		66
		67	;DEBUGF 1, 'K : FS: find partition\n'
		68	; check all disks
		69	mov esi, [disk_list]
		70	.new_disk:
		71	cmp dword[esi], disk_list
		72	jz .end
		73
		74	push edx
		75	mov eax, [esi + DISK.MediaInfo.SectorSize]
		76	shl eax, 2
		77	stdcall kernel_alloc, eax ;get buffer
		78	test eax, eax
		79	pop edx
		80	jz .end ; no memory
		81	mov ebx, eax
		82
		83	mov ecx, [esi + DISK.NumPartitions]
		84	dec ecx
		85	shl ecx, 2 ; to dword
		86	add ecx, [esi + DISK.Partitions]
		87	@@:
		88	mov ebp, [ecx]
		89	cmp [ebp + PARTITION.FSUserFunctions], default_fs_functions
		90	jnz .no_fs
		91
		92	;DEBUGF 1, 'K : FS: found partition\n'
		93	push ecx edx
		94
		95	xor eax, eax ; first sector of the partition
		96	call fs_read32_sys
		97	push eax
		98	;DEBUGF 1, 'K : FS: call driver func = %x\n', edx
		99
		100	call edx ; creat_partition
		101	add esp, 4
		102	;DEBUGF 1, 'K : FS: end call\n'
		103	pop edx ecx
		104
		105	test eax, eax
		106	jz .no_fs
		107	; save and delete old struct
		108	xchg [ecx], eax
		109	push ecx edx
		110	call free
		111	pop edx ecx
		112	;DEBUGF 1, 'K : FS: set fs for partition\n'
		113	.no_fs:
		114	;sub ecx, 4
		115	cmp ecx, [esi + DISK.Partitions]
		116	lea ecx, [ecx - 4]
		117	jnz @b
		118
		119	push edx
		120	stdcall kernel_free, ebx
		121	pop edx
		122
		123	mov esi, [esi]
		124	jmp .new_disk
		125	.end:
		126	.err:
		127	ret
		128	; IN: ecx = list item
		129	;OUT: -
		130	;fs_del:
		131	;
		132	; ret
		133
		134
		135
9698	turbocat	136	; System function 70 security check
		137	align 4
		138	proc file_system_is_operation_safe stdcall, inf_struct_ptr: dword
		139	; in:
		140	; inf_struct_ptr = pointer to information structure was given to sysfn70
		141	; out: ZF = 1 if operation is safe
		142	; ZF = 0 if operation can cause kernel crash
		143	push ebx ecx edx
		144	xor ecx, ecx ; ecx - length of target buffer
8680	rgimad	145
9698	turbocat	146	mov ebx, [inf_struct_ptr]
		147	mov edx, [ebx + 16] ; base of target buffer
8680	rgimad	148
9698	turbocat	149	cmp dword [ebx], 0 ; if 70.0
		150	jnz .case1
		151	mov ecx, dword [ebx + 12]
		152	jmp .end_switch
8680	rgimad	153
9698	turbocat	154	.case1:
		155	cmp dword [ebx], 1 ; if 70.1
		156	jnz .case2_3
		157	;mov ecx, 32
		158	cmp dword [ebx + 8], 1 ; check encoding
		159	jbe .case1_304 ; if encdoing <= 1 i.e cpp866
		160	mov ecx, 560 ; if unicode then bdvk block len is 560 bytes
		161	jmp .case1_end
		162	.case1_304:
		163	mov ecx, 304 ; if cp866 then bdvk block len is 304 bytes
		164	.case1_end:
		165	imul ecx, dword [ebx + 12] ; multiply bdvk length by their count
		166	add ecx, 32 ; add result header len
		167	jmp .end_switch
8680	rgimad	168
9698	turbocat	169	.case2_3:
		170	cmp dword [ebx], 3
		171	ja .case5 ; if subfn > 3
		172	mov ecx, dword [ebx + 12]
		173	jmp .end_switch
8680	rgimad	174
9698	turbocat	175	.case5:
		176	cmp dword [ebx], 5
		177	jnz .case6
		178	mov ecx, 40
		179	jmp .end_switch
8680	rgimad	180
9698	turbocat	181	.case6:
		182	cmp dword [ebx], 6
		183	jnz .switch_none
		184	mov ecx, 32
		185	jmp .end_switch
8680	rgimad	186
9698	turbocat	187	.switch_none:
		188	cmp ecx, ecx
		189	jmp .ret
		190
		191	.end_switch:
		192	stdcall is_region_userspace, edx, ecx
		193	.ret:
		194	pop edx ecx ebx
		195	ret
		196	endp
8680	rgimad	197
9698	turbocat	198	sys_fileSystemUnicode: ; with user pointer correctness checking
		199	; in: ebx -> f.80 parameter structure
		200	stdcall file_system_is_operation_safe, ebx
		201	jz @f
8680	rgimad	202
9698	turbocat	203	DEBUGF 1, "sysfn80 addr error\n"
		204	mov dword [image_of_eax], ERROR_MEMORY_POINTER
		205	ret
		206	@@:
		207	jmp fileSystemUnicode
8680	rgimad	208
9698	turbocat	209	;System function 70
		210	sys_file_system_lfn: ; with user pointer correctness checking
		211	; in: ebx -> f.70 parameter structure
		212	stdcall file_system_is_operation_safe, ebx
		213	jz @f
8680	rgimad	214
9698	turbocat	215	DEBUGF 1, "sysfn70 addr error\n"
		216	mov dword [image_of_eax], ERROR_MEMORY_POINTER
		217	ret
		218	@@:
		219	jmp file_system_lfn
8680	rgimad	220
9698	turbocat	221	;file_system_lfn_protected returns values not in registers, but in their images
		222	;on stack. Make a short wrapper to actually return values in registers.
9185	dunkaist	223	file_system_lfn_protected_registers:
		224	pushad
		225	call file_system_lfn_protected
		226	popad
		227	ret
		228
3296	clevermous	229	file_system_lfn_protected:
		230	pushad
		231	call protect_from_terminate
		232	call file_system_lfn
		233	call unprotect_from_terminate
		234	popad
		235	mov [image_of_eax], eax
		236	mov [image_of_ebx], ebx
		237	ret
		238
6798	pathoswith	239	fileSystemUnicode:
		240	; in: ebx -> f.80 parameter structure
		241	mov edi, [ebx+20]
		242	mov esi, [ebx+24]
		243	jmp @f
		244
2288	clevermous	245	file_system_lfn:
6798	pathoswith	246	; in: ebx -> f.70 parameter structure
		247	xor edi, edi
		248	lea esi, [ebx+20]
		249	cmp byte [esi], 0
2288	clevermous	250	jnz @f
6798	pathoswith	251	mov esi, [ebx+21]
2288	clevermous	252	@@:
6798	pathoswith	253	cmp word [esi], '/'
6502	pathoswith	254	jnz @f
6798	pathoswith	255	cmp edi, 2
6502	pathoswith	256	jnz .rootdir
6798	pathoswith	257	cmp dword[esi], '/'
6502	pathoswith	258	jz .rootdir
		259	@@:
6792	pathoswith	260	stdcall kernel_alloc, maxPathLength
		261	push eax ebx
		262	xchg eax, edi
		263	call getFullPath
		264	pop ebx ebp
		265	test eax, eax
		266	jz .notfound
6464	pathoswith	267	cmp dword[ebx], 7 ; start application
6502	pathoswith	268	jnz @f
6333	serge	269	mov edx, [ebx+4]
6792	pathoswith	270	mov ecx, [ebx+8]
		271	mov ebx, ebp
		272	call fs_execute
6333	serge	273	mov [image_of_eax], eax
		274	ret
6464	pathoswith	275
6333	serge	276	@@:
6502	pathoswith	277	lea esi, [ebp+2]
		278	mov ax, [esi]
6464	pathoswith	279	or ax, 2020h
		280	cmp ax, 'cd'
		281	jz .CD
		282	call dyndisk_handler ; not returns if success
		283	.notfound:
6468	pathoswith	284	stdcall kernel_free, ebp
6464	pathoswith	285	mov dword[image_of_eax], ERROR_FILE_NOT_FOUND
		286	ret
		287
		288	.CD:
		289	add esi, 2
		290	xor eax, eax
		291	lodsb ; disk number
		292	sub eax, '0'
		293	cmp eax, 10
		294	jnc .notfound
		295	mov edi, eax
2288	clevermous	296	lodsb
6464	pathoswith	297	test eax, eax
		298	jz .maindir
2288	clevermous	299	cmp al, '/'
6464	pathoswith	300	jnz .notfound
		301	lodsb ; partition number
		302	test eax, eax
		303	jz .maindir
		304	cmp al, '1'
		305	jnz .notfound
		306	cmp byte [esi], '/'
		307	jnz @f
		308	inc esi
		309	@@:
		310	call reserve_cd
		311	mov eax, edi
		312	bt eax, 0
		313	setc [DiskNumber]
		314	bt eax, 1
		315	setc [ChannelNumber]
		316	inc [ChannelNumber]
		317	inc eax
		318	mov [cdpos], eax
		319	call reserve_cd_channel
		320	mov eax, edi
		321	not eax
		322	and eax, 3
		323	shl eax, 1
		324	inc eax
		325	shr edi, 2
		326	mov dword[image_of_eax], ERROR_FILE_NOT_FOUND
		327	bt [edi*5+DRIVE_DATA+1], ax
		328	jnc @f
		329	mov ecx, [ebx+12]
		330	mov edx, [ebx+16]
		331	mov eax, [ebx]
		332	mov dword[image_of_eax], ERROR_UNSUPPORTED_FS
		333	cmp eax, fs_NumCdServices
		334	jae @f
		335	add ebx, 4
6611	clevermous	336	push ebp
6464	pathoswith	337	call dword[fs_CdServices + eax*4]
6611	clevermous	338	pop ebp
6464	pathoswith	339	mov [image_of_eax], eax
		340	mov [image_of_ebx], ebx
		341	@@:
		342	call free_cd_channel
		343	and [cd_status], 0
6468	pathoswith	344	stdcall kernel_free, ebp
6464	pathoswith	345	ret
		346
		347	.nextCD:
		348	test eax, eax ; partition number
6875	pathoswith	349	jnz @f
		350	inc eax ; /cdX/1
		351	ret
		352
		353	@@:
6464	pathoswith	354	stc
		355	ret
		356
		357	.maindir: ; list partitions
		358	mov esi, .nextCD
6875	pathoswith	359	xor ecx, ecx
6464	pathoswith	360	.maindir_noesi: ; backjump from dyndisk_handler
6468	pathoswith	361	push ebp
		362	mov ebp, ecx
		363	call kernel_free
6875	pathoswith	364	mov edi, [ebx+16] ; buffer
		365	cmp byte [ebx], 5
		366	jz .deviceInfo
		367	cmp byte [ebx], 1 ; read folder?
		368	jnz .access_denied
6468	pathoswith	369	push ebp
		370	pushd [ebx+4] ; first block
6464	pathoswith	371	mov ebp, [ebx+12] ; the number of blocks to read
2288	clevermous	372	mov ebx, [ebx+8] ; flags
6464	pathoswith	373	mov ecx, 32/4
6875	pathoswith	374	mov edx, edi
6464	pathoswith	375	xor eax, eax
2288	clevermous	376	rep stosd
		377	mov byte [edx], 1 ; version
		378	.maindir_loop:
		379	call esi
		380	jc .maindir_done
6464	pathoswith	381	inc dword[edx+8]
		382	dec dword[esp]
2288	clevermous	383	jns .maindir_loop
		384	dec ebp
		385	js .maindir_loop
6464	pathoswith	386	inc dword[edx+4]
		387	mov dword[edi], 16 ; attributes: folder
		388	mov dword[edi+4], ebx ; name encoding
2288	clevermous	389	push eax
6464	pathoswith	390	mov ecx, 32/4
		391	add edi, 8
2288	clevermous	392	xor eax, eax
		393	rep stosd
		394	pop eax
6464	pathoswith	395	push eax edx edi
		396	; convert number in eax to decimal string
2288	clevermous	397	push -'0'
		398	mov ecx, 10
		399	@@:
		400	xor edx, edx
		401	div ecx
		402	push edx
		403	test eax, eax
		404	jnz @b
6875	pathoswith	405	cmp ebx, 2
6464	pathoswith	406	jz .uni
2288	clevermous	407	@@:
		408	pop eax
6464	pathoswith	409	add eax, '0'
2288	clevermous	410	stosb
6464	pathoswith	411	test eax, eax
2288	clevermous	412	jnz @b
6464	pathoswith	413	pop edi edx eax
6875	pathoswith	414	cmp ebx, 3
		415	jz @f
6464	pathoswith	416	add edi, 264
		417	jmp .maindir_loop
		418
		419	.uni:
		420	pop eax
		421	add eax, '0'
		422	stosw
		423	test eax, eax
		424	jnz .uni
		425	pop edi edx eax
6875	pathoswith	426	@@:
2288	clevermous	427	add edi, 520
		428	jmp .maindir_loop
6464	pathoswith	429
2288	clevermous	430	.maindir_done:
6464	pathoswith	431	pop eax eax
2288	clevermous	432	mov ebx, [edx+4]
		433	xor eax, eax
		434	dec ebp
		435	js @f
		436	mov al, ERROR_END_OF_FILE
		437	@@:
		438	mov [image_of_eax], eax
		439	mov [image_of_ebx], ebx
		440	ret
6464	pathoswith	441
2288	clevermous	442	.access_denied:
6464	pathoswith	443	mov dword[image_of_eax], ERROR_ACCESS_DENIED
2288	clevermous	444	ret
		445
6875	pathoswith	446	.deviceInfo:
		447	test ebp, ebp
		448	jz @f
		449	mov eax, dword[ebp+DISK.MediaInfo.Capacity]
		450	mov edx, dword[ebp+DISK.MediaInfo.Capacity+4]
10016	Doczom	451	mov ecx, [ebp + DISK.MediaInfo.SectorSize]
		452	bsf ecx, ecx
		453	shld edx, eax, cl
		454	shl eax, cl
6875	pathoswith	455	mov [edi+36], edx
		456	mov [edi+32], eax
		457	@@:
		458	and dword[image_of_eax], 0
		459	ret
		460
6464	pathoswith	461	.rootdir: ; / - virtual root folder
6875	pathoswith	462	cmp byte [ebx], 5
		463	jz @b
		464	cmp byte [ebx], 1 ; read folder?
6464	pathoswith	465	jnz .access_denied
		466	mov ebp, [ebx+12] ; number of blocks
		467	mov edx, [ebx+16] ; return area
		468	push dword[ebx+4] ; first block
2288	clevermous	469	mov ebx, [ebx+8] ; flags
6464	pathoswith	470	mov ecx, 32/4
		471	mov edi, edx
2288	clevermous	472	xor eax, eax
		473	rep stosd
		474	mov byte [edx], 1 ; version
4277	clevermous	475	sub esp, 16
6464	pathoswith	476	.rootdir_loop:
4277	clevermous	477	push edi
		478	lea edi, [esp+4]
		479	call dyndisk_enum_root
		480	pop edi
		481	test eax, eax
6464	pathoswith	482	jz .rootdirCD
		483	inc dword[edx+8]
		484	dec dword[esp+16]
		485	jns .rootdir_loop
4277	clevermous	486	dec ebp
6464	pathoswith	487	js .rootdir_loop
		488	inc dword[edx+4]
		489	mov dword[edi], 16 ; attributes: folder
		490	mov dword[edi+4], ebx ; name encoding
4277	clevermous	491	push eax
6464	pathoswith	492	mov ecx, 32/4
		493	add edi, 8
4277	clevermous	494	xor eax, eax
		495	rep stosd
6468	pathoswith	496	push edi
		497	lea esi, [esp+8]
6875	pathoswith	498	cmp ebx, 2
6464	pathoswith	499	jz .uni2
4277	clevermous	500	@@:
		501	lodsb
		502	stosb
6464	pathoswith	503	test eax, eax
4277	clevermous	504	jnz @b
6468	pathoswith	505	pop edi eax
6875	pathoswith	506	cmp ebx, 3
		507	jz @f
6464	pathoswith	508	add edi, 264
		509	jmp .rootdir_loop
		510
		511	.uni2:
		512	lodsb
		513	stosw
		514	test eax, eax
		515	jnz .uni2
6468	pathoswith	516	pop edi eax
6875	pathoswith	517	@@:
4277	clevermous	518	add edi, 520
6464	pathoswith	519	jmp .rootdir_loop
		520
		521	.rootdirCD:
4277	clevermous	522	add esp, 16
6464	pathoswith	523	or esi, -1
		524	.rootdirCD_loop:
		525	inc esi
		526	cmp esi, 10
		527	jnc .rootdir_done
		528	mov eax, esi
		529	not eax
		530	and eax, 3
		531	shl eax, 1
		532	inc eax
		533	mov ecx, esi
		534	shr ecx, 2
		535	bt [ecx*5+DRIVE_DATA+1], ax
		536	jnc .rootdirCD_loop
		537	inc dword[edx+8]
		538	dec dword[esp]
		539	jns .rootdirCD_loop
2288	clevermous	540	dec ebp
6464	pathoswith	541	js .rootdirCD_loop
		542	inc dword[edx+4]
		543	mov dword[edi], 16 ; attributes: folder
		544	mov dword[edi+4], ebx ; name encoding
		545	mov ecx, 32/4
2288	clevermous	546	add edi, 8
6464	pathoswith	547	xor eax, eax
2288	clevermous	548	rep stosd
6464	pathoswith	549	mov eax, esi
		550	add eax, '0'
		551	cmp ebx, 1
		552	jz @f
		553	mov word [edi], 'cd'
		554	mov [edi+2], ax
		555	add edi, 264
		556	jmp .rootdirCD_loop
		557
2288	clevermous	558	@@:
6464	pathoswith	559	mov dword[edi], 640063h
		560	mov [edi+4], eax
2288	clevermous	561	add edi, 520
6464	pathoswith	562	jmp .rootdirCD_loop
		563
		564	.rootdir_done:
2288	clevermous	565	pop eax
		566	mov ebx, [edx+4]
		567	xor eax, eax
		568	dec ebp
		569	js @f
		570	mov al, ERROR_END_OF_FILE
		571	@@:
		572	mov [image_of_eax], eax
		573	mov [image_of_ebx], ebx
		574	ret
		575
4700	mario79	576	;-----------------------------------------------------------------------------
2288	clevermous	577	process_replace_file_name:
6464	pathoswith	578	; in: [esi] = virtual path
		579	; out: [esi]+[ebp] = physical path
3689	mario79	580	xor edi, edi
6471	pathoswith	581	xor ebp, ebp
2288	clevermous	582	.loop:
3711	clevermous	583	cmp edi, [full_file_name_table.size]
3689	mario79	584	jae .notfound
2288	clevermous	585	push esi edi
6464	pathoswith	586	shl edi, 7
6471	pathoswith	587	add edi, [full_file_name_table]
2288	clevermous	588	@@:
6464	pathoswith	589	cmp byte [edi], 0
2288	clevermous	590	jz .dest_done
		591	lodsb
		592	test al, al
		593	jz .cont
		594	scasb
		595	jz @b
6798	pathoswith	596	or al, 20h
		597	cmp [edi-1], al
		598	jz @b
6464	pathoswith	599	.cont:
		600	pop edi esi
		601	inc edi
		602	jmp .loop
		603
2288	clevermous	604	.dest_done:
		605	cmp byte [esi], 0
		606	jz .found
		607	cmp byte [esi], '/'
		608	jnz .cont
		609	.found:
		610	pop edi eax
6464	pathoswith	611	shl edi, 7
6471	pathoswith	612	add edi, [full_file_name_table]
2288	clevermous	613	mov ebp, esi
		614	lea esi, [edi+64]
		615	.notfound:
		616	ret
6464	pathoswith	617
3689	mario79	618	;-----------------------------------------------------------------------------
3663	mario79	619	uglobal
6471	pathoswith	620	addDirSeal db ?
3663	mario79	621	endg
6338	serge	622
6464	pathoswith	623	sys_current_directory: ; sysfunction 30
2288	clevermous	624	mov eax, [current_slot]
		625	mov edi, [eax+APPDATA.cur_dir]
6798	pathoswith	626	xor eax, eax
2288	clevermous	627	dec ebx
		628	jz .set
		629	dec ebx
		630	jz .get
3663	mario79	631	dec ebx
		632	jz .mount_additional_directory
6798	pathoswith	633	mov eax, edx
6471	pathoswith	634	dec ebx
6798	pathoswith	635	jz .set
		636	mov eax, esi
		637	dec ebx
		638	jz .get
6471	pathoswith	639	@@:
2288	clevermous	640	ret
3663	mario79	641
		642	.mount_additional_directory:
6464	pathoswith	643	; in: ecx -> dir name+dir path (128)
6471	pathoswith	644	mov al, 1
		645	xchg [addDirSeal], al
		646	test al, al
		647	jnz @b
3663	mario79	648	mov esi, ecx
		649	mov edi, sysdir_name1
6798	pathoswith	650	mov ecx, 64
6464	pathoswith	651	rep movsb ; copying fake directory name
6798	pathoswith	652	mov byte [edi-1], 0
6471	pathoswith	653	mov cl, 63
		654	call cp866toUTF8_string
		655	mov byte [edi], 0
3663	mario79	656	mov [full_file_name_table.size], 2
		657	ret
6338	serge	658
6798	pathoswith	659	.get:
		660	; in: ecx -> buffer, edx = length, eax = encoding
8676	rgimad	661	stdcall is_region_userspace, ecx, edx
9045	dunkaist	662	jz @f
8676	rgimad	663
		664	; if illegal buffer given
		665	xor edx, edx
		666	jmp .ret
		667	@@:
		668
6471	pathoswith	669	mov esi, edi
6534	pathoswith	670	inc esi
6471	pathoswith	671	mov edi, ecx
		672	cmp edx, maxPathLength
		673	jc @f
		674	mov edx, maxPathLength
2288	clevermous	675	@@:
		676	mov ecx, edx
6798	pathoswith	677	jecxz .ret
		678	cmp eax, 2
		679	jz .get16
		680	cmp eax, 3
		681	jz .get8
6471	pathoswith	682	@@:
		683	dec ecx
		684	js @f
		685	call utf8to16
		686	call uni2ansi_char
		687	stosb
		688	test al, al
		689	jnz @b
		690	sub edx, ecx
		691	@@:
6798	pathoswith	692	mov byte [edi-1], 0
		693	.ret:
		694	mov [esp+32], edx
2288	clevermous	695	ret
		696
6798	pathoswith	697	.get8:
		698	push edi
		699	mov edi, esi
		700	xor eax, eax
		701	repnz scasb
		702	sub edx, ecx
		703	mov ecx, edx
		704	pop edi
		705	rep movsb
		706	jmp @b
		707
6471	pathoswith	708	.get16:
6798	pathoswith	709	shr ecx, 1
6471	pathoswith	710	shr edx, 1
		711	@@:
		712	dec ecx
		713	js @f
		714	call utf8to16
		715	stosw
		716	test ax, ax
		717	jnz @b
		718	sub edx, ecx
		719	@@:
6798	pathoswith	720	shl edx, 1
		721	mov word [edi-2], 0
		722	jmp .ret
6464	pathoswith	723
2288	clevermous	724	.set:
6792	pathoswith	725	mov esi, ecx
		726	getFullPath:
		727	; in: esi -> file path, eax = string encoding, edi -> destination
		728	; out: UTF-8 string (with marker), eax = length, 0 -> error
		729	test eax, eax
		730	jnz @f
		731	cmp byte [esi], 4
6502	pathoswith	732	jnc @f
6792	pathoswith	733	cmp byte [esi], 0
		734	jz @f
		735	lodsb
6471	pathoswith	736	@@:
		737	cmp byte [esi], '/'
6792	pathoswith	738	jnz .relative
		739	cmp eax, 2
		740	jnz @f
		741	cmp word [esi], '/'
		742	jnz .relative
6471	pathoswith	743	inc esi
6792	pathoswith	744	inc esi
		745	jmp .start
		746
		747	@@:
		748	inc esi
6758	pathoswith	749	cmp byte [esi], 4
6792	pathoswith	750	jnc .start
		751	lodsb
6758	pathoswith	752	cmp byte [esi], '/'
		753	jnz .start
		754	inc esi
		755	.start:
6792	pathoswith	756	push eax edi
6468	pathoswith	757	call process_replace_file_name
6792	pathoswith	758	mov edi, [esp]
		759	mov ecx, maxPathLength
6502	pathoswith	760	mov al, 3
		761	mov ah, '/'
		762	stosw
		763	sub ecx, 2
6471	pathoswith	764	test ebp, ebp
		765	jz .absolute
		766	@@:
6468	pathoswith	767	lodsb
		768	stosb
6471	pathoswith	769	dec ecx
6468	pathoswith	770	test al, al
6471	pathoswith	771	jnz @b
		772	mov esi, ebp
6468	pathoswith	773	dec edi
6471	pathoswith	774	.absolute:
6792	pathoswith	775	cmp byte [esp+4], 2
6502	pathoswith	776	jz .utf16
6792	pathoswith	777	cmp byte [esp+4], 3
6502	pathoswith	778	jz .utf8
6471	pathoswith	779	call cp866toUTF8_string
6787	pathoswith	780	jns .end
6471	pathoswith	781	jmp .fail
		782
6502	pathoswith	783	.utf8:
		784	dec ecx
		785	js .fail
		786	lodsb
		787	stosb
		788	test al, al
6787	pathoswith	789	jz .end
6502	pathoswith	790	jmp .utf8
		791
		792	.utf16:
6471	pathoswith	793	call UTF16to8_string
6787	pathoswith	794	jns .end
6468	pathoswith	795	.fail:
		796	mov byte [edi], 0
6792	pathoswith	797	pop eax eax
6468	pathoswith	798	xor eax, eax
6792	pathoswith	799	ret
6468	pathoswith	800
6792	pathoswith	801	.relative:
		802	push eax edi
		803	mov ebx, esi
6468	pathoswith	804	mov edi, [current_slot]
		805	mov edi, [edi+APPDATA.cur_dir]
		806	mov edx, edi
6792	pathoswith	807	mov ecx, maxPathLength
6468	pathoswith	808	xor eax, eax
		809	repnz scasb
		810	mov esi, edi
6792	pathoswith	811	mov edi, [esp]
6468	pathoswith	812	jecxz .fail
6502	pathoswith	813	cmp byte [ebx], 0
		814	jz .set_ok
6792	pathoswith	815	dec esi
6471	pathoswith	816	cmp edx, edi ; is destination equal to cur_dir?
		817	mov edi, esi
		818	jz @f
6792	pathoswith	819	mov edi, [esp]
2288	clevermous	820	mov ecx, esi
6468	pathoswith	821	sub ecx, edx
2288	clevermous	822	mov esi, edx
		823	mov edx, edi
		824	rep movsb
6471	pathoswith	825	@@:
2288	clevermous	826	mov byte [edi], '/'
		827	inc edi
6471	pathoswith	828	mov esi, ebx
		829	mov ecx, edx
6792	pathoswith	830	add ecx, maxPathLength
6471	pathoswith	831	sub ecx, edi
		832	jmp .absolute
		833
6787	pathoswith	834	.set_ok:
		835	cmp edx, edi ; is destination equal to cur_dir?
6471	pathoswith	836	jz @f
6787	pathoswith	837	mov ecx, esi
		838	sub ecx, edx
		839	mov esi, edx
		840	rep movsb
2288	clevermous	841	@@:
6792	pathoswith	842	pop eax
		843	sub edi, eax
		844	pop eax
		845	mov eax, edi
		846	ret
6787	pathoswith	847
		848	.end:
		849	or ecx, -1
6792	pathoswith	850	mov edi, [esp]
6787	pathoswith	851	xor eax, eax
		852	push edi
		853	repnz scasb
		854	not ecx
		855	pop edi
		856	.parse:
		857	mov al, '/'
		858	repnz scasb
		859	jecxz @b
		860	cmp byte [edi], '.'
		861	jnz .parse
		862	mov esi, edi
		863	@@:
		864	lodsw
		865	sub ecx, 2
		866	cmp ax, './'
		867	jz @b
		868	cmp ax, '..'
		869	jnz @f
6471	pathoswith	870	cmp byte [esi], '/'
6787	pathoswith	871	jnz @f
		872	mov edx, ecx
		873	mov ecx, edi
6792	pathoswith	874	sub ecx, [esp]
6787	pathoswith	875	sub ecx, 2
		876	jc .fail
		877	sub edi, 2
		878	lodsb
		879	dec edx
		880	std
		881	repnz scasb
		882	cld
		883	add edi, 2
		884	mov ecx, edx
		885	jmp @b
6464	pathoswith	886
6787	pathoswith	887	@@:
		888	sub esi, 2
		889	add ecx, 2
		890	cmp esi, edi
		891	jz .parse
		892	push edi ecx
		893	rep movsb
		894	pop ecx edi
		895	jmp .parse
		896
6462	pathoswith	897	include "parse_fn.inc"
		898	include "fs_common.inc"
		899	include "iso9660.inc" ; read for CD filesystem
		900	include "fat.inc"
9734	sober_dev	901	include "exfat.inc"
6462	pathoswith	902	include "ntfs.inc"
		903	include "ext.inc"
7736	dunkaist	904	include "xfs.asm"

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(root)/kernel/trunk/fs/fs_lfn.inc – Rev 10016