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: 9894 $
		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]
		451	shld edx, eax, 9
		452	shl eax, 9
		453	mov [edi+36], edx
		454	mov [edi+32], eax
		455	@@:
		456	and dword[image_of_eax], 0
		457	ret
		458
6464	pathoswith	459	.rootdir: ; / - virtual root folder
6875	pathoswith	460	cmp byte [ebx], 5
		461	jz @b
		462	cmp byte [ebx], 1 ; read folder?
6464	pathoswith	463	jnz .access_denied
		464	mov ebp, [ebx+12] ; number of blocks
		465	mov edx, [ebx+16] ; return area
		466	push dword[ebx+4] ; first block
2288	clevermous	467	mov ebx, [ebx+8] ; flags
6464	pathoswith	468	mov ecx, 32/4
		469	mov edi, edx
2288	clevermous	470	xor eax, eax
		471	rep stosd
		472	mov byte [edx], 1 ; version
4277	clevermous	473	sub esp, 16
6464	pathoswith	474	.rootdir_loop:
4277	clevermous	475	push edi
		476	lea edi, [esp+4]
		477	call dyndisk_enum_root
		478	pop edi
		479	test eax, eax
6464	pathoswith	480	jz .rootdirCD
		481	inc dword[edx+8]
		482	dec dword[esp+16]
		483	jns .rootdir_loop
4277	clevermous	484	dec ebp
6464	pathoswith	485	js .rootdir_loop
		486	inc dword[edx+4]
		487	mov dword[edi], 16 ; attributes: folder
		488	mov dword[edi+4], ebx ; name encoding
4277	clevermous	489	push eax
6464	pathoswith	490	mov ecx, 32/4
		491	add edi, 8
4277	clevermous	492	xor eax, eax
		493	rep stosd
6468	pathoswith	494	push edi
		495	lea esi, [esp+8]
6875	pathoswith	496	cmp ebx, 2
6464	pathoswith	497	jz .uni2
4277	clevermous	498	@@:
		499	lodsb
		500	stosb
6464	pathoswith	501	test eax, eax
4277	clevermous	502	jnz @b
6468	pathoswith	503	pop edi eax
6875	pathoswith	504	cmp ebx, 3
		505	jz @f
6464	pathoswith	506	add edi, 264
		507	jmp .rootdir_loop
		508
		509	.uni2:
		510	lodsb
		511	stosw
		512	test eax, eax
		513	jnz .uni2
6468	pathoswith	514	pop edi eax
6875	pathoswith	515	@@:
4277	clevermous	516	add edi, 520
6464	pathoswith	517	jmp .rootdir_loop
		518
		519	.rootdirCD:
4277	clevermous	520	add esp, 16
6464	pathoswith	521	or esi, -1
		522	.rootdirCD_loop:
		523	inc esi
		524	cmp esi, 10
		525	jnc .rootdir_done
		526	mov eax, esi
		527	not eax
		528	and eax, 3
		529	shl eax, 1
		530	inc eax
		531	mov ecx, esi
		532	shr ecx, 2
		533	bt [ecx*5+DRIVE_DATA+1], ax
		534	jnc .rootdirCD_loop
		535	inc dword[edx+8]
		536	dec dword[esp]
		537	jns .rootdirCD_loop
2288	clevermous	538	dec ebp
6464	pathoswith	539	js .rootdirCD_loop
		540	inc dword[edx+4]
		541	mov dword[edi], 16 ; attributes: folder
		542	mov dword[edi+4], ebx ; name encoding
		543	mov ecx, 32/4
2288	clevermous	544	add edi, 8
6464	pathoswith	545	xor eax, eax
2288	clevermous	546	rep stosd
6464	pathoswith	547	mov eax, esi
		548	add eax, '0'
		549	cmp ebx, 1
		550	jz @f
		551	mov word [edi], 'cd'
		552	mov [edi+2], ax
		553	add edi, 264
		554	jmp .rootdirCD_loop
		555
2288	clevermous	556	@@:
6464	pathoswith	557	mov dword[edi], 640063h
		558	mov [edi+4], eax
2288	clevermous	559	add edi, 520
6464	pathoswith	560	jmp .rootdirCD_loop
		561
		562	.rootdir_done:
2288	clevermous	563	pop eax
		564	mov ebx, [edx+4]
		565	xor eax, eax
		566	dec ebp
		567	js @f
		568	mov al, ERROR_END_OF_FILE
		569	@@:
		570	mov [image_of_eax], eax
		571	mov [image_of_ebx], ebx
		572	ret
		573
4700	mario79	574	;-----------------------------------------------------------------------------
2288	clevermous	575	process_replace_file_name:
6464	pathoswith	576	; in: [esi] = virtual path
		577	; out: [esi]+[ebp] = physical path
3689	mario79	578	xor edi, edi
6471	pathoswith	579	xor ebp, ebp
2288	clevermous	580	.loop:
3711	clevermous	581	cmp edi, [full_file_name_table.size]
3689	mario79	582	jae .notfound
2288	clevermous	583	push esi edi
6464	pathoswith	584	shl edi, 7
6471	pathoswith	585	add edi, [full_file_name_table]
2288	clevermous	586	@@:
6464	pathoswith	587	cmp byte [edi], 0
2288	clevermous	588	jz .dest_done
		589	lodsb
		590	test al, al
		591	jz .cont
		592	scasb
		593	jz @b
6798	pathoswith	594	or al, 20h
		595	cmp [edi-1], al
		596	jz @b
6464	pathoswith	597	.cont:
		598	pop edi esi
		599	inc edi
		600	jmp .loop
		601
2288	clevermous	602	.dest_done:
		603	cmp byte [esi], 0
		604	jz .found
		605	cmp byte [esi], '/'
		606	jnz .cont
		607	.found:
		608	pop edi eax
6464	pathoswith	609	shl edi, 7
6471	pathoswith	610	add edi, [full_file_name_table]
2288	clevermous	611	mov ebp, esi
		612	lea esi, [edi+64]
		613	.notfound:
		614	ret
6464	pathoswith	615
3689	mario79	616	;-----------------------------------------------------------------------------
3663	mario79	617	uglobal
6471	pathoswith	618	addDirSeal db ?
3663	mario79	619	endg
6338	serge	620
6464	pathoswith	621	sys_current_directory: ; sysfunction 30
2288	clevermous	622	mov eax, [current_slot]
		623	mov edi, [eax+APPDATA.cur_dir]
6798	pathoswith	624	xor eax, eax
2288	clevermous	625	dec ebx
		626	jz .set
		627	dec ebx
		628	jz .get
3663	mario79	629	dec ebx
		630	jz .mount_additional_directory
6798	pathoswith	631	mov eax, edx
6471	pathoswith	632	dec ebx
6798	pathoswith	633	jz .set
		634	mov eax, esi
		635	dec ebx
		636	jz .get
6471	pathoswith	637	@@:
2288	clevermous	638	ret
3663	mario79	639
		640	.mount_additional_directory:
6464	pathoswith	641	; in: ecx -> dir name+dir path (128)
6471	pathoswith	642	mov al, 1
		643	xchg [addDirSeal], al
		644	test al, al
		645	jnz @b
3663	mario79	646	mov esi, ecx
		647	mov edi, sysdir_name1
6798	pathoswith	648	mov ecx, 64
6464	pathoswith	649	rep movsb ; copying fake directory name
6798	pathoswith	650	mov byte [edi-1], 0
6471	pathoswith	651	mov cl, 63
		652	call cp866toUTF8_string
		653	mov byte [edi], 0
3663	mario79	654	mov [full_file_name_table.size], 2
		655	ret
6338	serge	656
6798	pathoswith	657	.get:
		658	; in: ecx -> buffer, edx = length, eax = encoding
8676	rgimad	659	stdcall is_region_userspace, ecx, edx
9045	dunkaist	660	jz @f
8676	rgimad	661
		662	; if illegal buffer given
		663	xor edx, edx
		664	jmp .ret
		665	@@:
		666
6471	pathoswith	667	mov esi, edi
6534	pathoswith	668	inc esi
6471	pathoswith	669	mov edi, ecx
		670	cmp edx, maxPathLength
		671	jc @f
		672	mov edx, maxPathLength
2288	clevermous	673	@@:
		674	mov ecx, edx
6798	pathoswith	675	jecxz .ret
		676	cmp eax, 2
		677	jz .get16
		678	cmp eax, 3
		679	jz .get8
6471	pathoswith	680	@@:
		681	dec ecx
		682	js @f
		683	call utf8to16
		684	call uni2ansi_char
		685	stosb
		686	test al, al
		687	jnz @b
		688	sub edx, ecx
		689	@@:
6798	pathoswith	690	mov byte [edi-1], 0
		691	.ret:
		692	mov [esp+32], edx
2288	clevermous	693	ret
		694
6798	pathoswith	695	.get8:
		696	push edi
		697	mov edi, esi
		698	xor eax, eax
		699	repnz scasb
		700	sub edx, ecx
		701	mov ecx, edx
		702	pop edi
		703	rep movsb
		704	jmp @b
		705
6471	pathoswith	706	.get16:
6798	pathoswith	707	shr ecx, 1
6471	pathoswith	708	shr edx, 1
		709	@@:
		710	dec ecx
		711	js @f
		712	call utf8to16
		713	stosw
		714	test ax, ax
		715	jnz @b
		716	sub edx, ecx
		717	@@:
6798	pathoswith	718	shl edx, 1
		719	mov word [edi-2], 0
		720	jmp .ret
6464	pathoswith	721
2288	clevermous	722	.set:
6792	pathoswith	723	mov esi, ecx
		724	getFullPath:
		725	; in: esi -> file path, eax = string encoding, edi -> destination
		726	; out: UTF-8 string (with marker), eax = length, 0 -> error
		727	test eax, eax
		728	jnz @f
		729	cmp byte [esi], 4
6502	pathoswith	730	jnc @f
6792	pathoswith	731	cmp byte [esi], 0
		732	jz @f
		733	lodsb
6471	pathoswith	734	@@:
		735	cmp byte [esi], '/'
6792	pathoswith	736	jnz .relative
		737	cmp eax, 2
		738	jnz @f
		739	cmp word [esi], '/'
		740	jnz .relative
6471	pathoswith	741	inc esi
6792	pathoswith	742	inc esi
		743	jmp .start
		744
		745	@@:
		746	inc esi
6758	pathoswith	747	cmp byte [esi], 4
6792	pathoswith	748	jnc .start
		749	lodsb
6758	pathoswith	750	cmp byte [esi], '/'
		751	jnz .start
		752	inc esi
		753	.start:
6792	pathoswith	754	push eax edi
6468	pathoswith	755	call process_replace_file_name
6792	pathoswith	756	mov edi, [esp]
		757	mov ecx, maxPathLength
6502	pathoswith	758	mov al, 3
		759	mov ah, '/'
		760	stosw
		761	sub ecx, 2
6471	pathoswith	762	test ebp, ebp
		763	jz .absolute
		764	@@:
6468	pathoswith	765	lodsb
		766	stosb
6471	pathoswith	767	dec ecx
6468	pathoswith	768	test al, al
6471	pathoswith	769	jnz @b
		770	mov esi, ebp
6468	pathoswith	771	dec edi
6471	pathoswith	772	.absolute:
6792	pathoswith	773	cmp byte [esp+4], 2
6502	pathoswith	774	jz .utf16
6792	pathoswith	775	cmp byte [esp+4], 3
6502	pathoswith	776	jz .utf8
6471	pathoswith	777	call cp866toUTF8_string
6787	pathoswith	778	jns .end
6471	pathoswith	779	jmp .fail
		780
6502	pathoswith	781	.utf8:
		782	dec ecx
		783	js .fail
		784	lodsb
		785	stosb
		786	test al, al
6787	pathoswith	787	jz .end
6502	pathoswith	788	jmp .utf8
		789
		790	.utf16:
6471	pathoswith	791	call UTF16to8_string
6787	pathoswith	792	jns .end
6468	pathoswith	793	.fail:
		794	mov byte [edi], 0
6792	pathoswith	795	pop eax eax
6468	pathoswith	796	xor eax, eax
6792	pathoswith	797	ret
6468	pathoswith	798
6792	pathoswith	799	.relative:
		800	push eax edi
		801	mov ebx, esi
6468	pathoswith	802	mov edi, [current_slot]
		803	mov edi, [edi+APPDATA.cur_dir]
		804	mov edx, edi
6792	pathoswith	805	mov ecx, maxPathLength
6468	pathoswith	806	xor eax, eax
		807	repnz scasb
		808	mov esi, edi
6792	pathoswith	809	mov edi, [esp]
6468	pathoswith	810	jecxz .fail
6502	pathoswith	811	cmp byte [ebx], 0
		812	jz .set_ok
6792	pathoswith	813	dec esi
6471	pathoswith	814	cmp edx, edi ; is destination equal to cur_dir?
		815	mov edi, esi
		816	jz @f
6792	pathoswith	817	mov edi, [esp]
2288	clevermous	818	mov ecx, esi
6468	pathoswith	819	sub ecx, edx
2288	clevermous	820	mov esi, edx
		821	mov edx, edi
		822	rep movsb
6471	pathoswith	823	@@:
2288	clevermous	824	mov byte [edi], '/'
		825	inc edi
6471	pathoswith	826	mov esi, ebx
		827	mov ecx, edx
6792	pathoswith	828	add ecx, maxPathLength
6471	pathoswith	829	sub ecx, edi
		830	jmp .absolute
		831
6787	pathoswith	832	.set_ok:
		833	cmp edx, edi ; is destination equal to cur_dir?
6471	pathoswith	834	jz @f
6787	pathoswith	835	mov ecx, esi
		836	sub ecx, edx
		837	mov esi, edx
		838	rep movsb
2288	clevermous	839	@@:
6792	pathoswith	840	pop eax
		841	sub edi, eax
		842	pop eax
		843	mov eax, edi
		844	ret
6787	pathoswith	845
		846	.end:
		847	or ecx, -1
6792	pathoswith	848	mov edi, [esp]
6787	pathoswith	849	xor eax, eax
		850	push edi
		851	repnz scasb
		852	not ecx
		853	pop edi
		854	.parse:
		855	mov al, '/'
		856	repnz scasb
		857	jecxz @b
		858	cmp byte [edi], '.'
		859	jnz .parse
		860	mov esi, edi
		861	@@:
		862	lodsw
		863	sub ecx, 2
		864	cmp ax, './'
		865	jz @b
		866	cmp ax, '..'
		867	jnz @f
6471	pathoswith	868	cmp byte [esi], '/'
6787	pathoswith	869	jnz @f
		870	mov edx, ecx
		871	mov ecx, edi
6792	pathoswith	872	sub ecx, [esp]
6787	pathoswith	873	sub ecx, 2
		874	jc .fail
		875	sub edi, 2
		876	lodsb
		877	dec edx
		878	std
		879	repnz scasb
		880	cld
		881	add edi, 2
		882	mov ecx, edx
		883	jmp @b
6464	pathoswith	884
6787	pathoswith	885	@@:
		886	sub esi, 2
		887	add ecx, 2
		888	cmp esi, edi
		889	jz .parse
		890	push edi ecx
		891	rep movsb
		892	pop ecx edi
		893	jmp .parse
		894
6462	pathoswith	895	include "parse_fn.inc"
		896	include "fs_common.inc"
		897	include "iso9660.inc" ; read for CD filesystem
		898	include "fat.inc"
9734	sober_dev	899	include "exfat.inc"
6462	pathoswith	900	include "ntfs.inc"
		901	include "ext.inc"
7736	dunkaist	902	include "xfs.asm"

Subversion Repositories Kolibri OS

(root)/kernel/trunk/fs/fs_lfn.inc @ 431 – Rev 9894