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kolibrios/programs/other/kpack/trunk/upacproc.inc
Marat Zakiyanov (Mario79) f19e882566 Kpack v 0.20
Added code for packing the kernel.mnt

git-svn-id: svn://kolibrios.org@1713 a494cfbc-eb01-0410-851d-a64ba20cac60
2010-12-07 14:51:06 +00:00

179 lines
2.7 KiB
PHP

;*********************************************************************
unpack:
call displogo_and_readfile
jnz infileerr
mov ecx,[insize]
test ecx,ecx
jz infileerr
mcall 68,12
mov [infile],eax
mov ebx,fn70block
mov [ebx],byte 0
mov [ebx+16],eax
mov eax,[insize]
mov [ebx+12],eax
mcall 70
test eax,eax
jnz infileerr
mov eax,[infile]
cmp [eax],dword 'KPCK'
jz @f
;--------------------------------------
unpack_err:
call return_memory
mov esi,notpacked_str
push notpacked_len
pop ecx
jmp write_string
;---------------------------------------------------------------------
@@:
mov ecx,[eax+4]
add ecx,[insize]
mcall 68,20,,[infile]
mov [infile],eax
add eax,[insize]
mov [outfile],eax
mov [outfilebest],eax
mov esi,[infile]
mov eax,[esi+8]
push eax
and al,0C0h
cmp al,0C0h
pop eax
jz unpack_err
and al,not 0C0h
dec eax
jnz unpack_err
mov eax,[esi+4]
mov [outsize],eax
push eax
push [outfile]
add esi,11
push esi
mov eax,[esi+1]
xchg al,ah
ror eax,16
xchg al,ah
mov [esi+1],eax
call lzma_decompress
mov esi,[infile]
test [esi+8],byte 80h
jnz uctr1
test [esi+8],byte 40h
jz udone
add esi,[insize]
sub esi,5
lodsd
mov ecx,eax
jecxz udone
mov dl,[esi]
mov esi,[outfile]
;--------------------------------------
uc1:
lodsb
sub al,0E8h
cmp al,1
ja uc1
cmp [esi],dl
jnz uc1
lodsd
shr ax,8
ror eax,16
xchg al,ah
sub eax,esi
add eax,[outfile]
mov [esi-4],eax
loop uc1
jmp udone
;---------------------------------------------------------------------
uctr1:
add esi,[insize]
sub esi,5
lodsd
mov ecx,eax
jecxz udone
mov dl,[esi]
mov esi,[outfile]
;--------------------------------------
uc2:
lodsb
;--------------------------------------
@@:
cmp al,15
jnz uf
lodsb
cmp al,80h
jb @b
cmp al,90h
jb @f
;--------------------------------------
uf:
sub al,0E8h
cmp al,1
ja uc2
;--------------------------------------
@@:
cmp [esi],dl
jnz uc2
lodsd
shr ax,8
ror eax,16
xchg al,ah
sub eax,esi
add eax,[outfile]
mov [esi-4],eax
loop uc2
;--------------------------------------
udone:
mov esi,unpacked_ok
push unpacked_len
pop ecx
call write_string
jmp saveout
;*********************************************************************
return_memory:
mov ecx,[infile]
test ecx,ecx
jz @f
mcall 68,13,
xor eax,eax
mov [infile],eax
@@:
ret
;*********************************************************************
displogo_and_readfile:
call clear_mess_and_displogo
; load input file
mov esi,inname
call get_full_name
mov ebx,fn70block
mov [ebx],dword 5
and [ebx+4],dword 0
and [ebx+8],dword 0
and [ebx+12],dword 0
mov [ebx+16],dword file_attr
mcall 70
test eax,eax
ret
;*********************************************************************