414 lines
7.8 KiB
NASM
414 lines
7.8 KiB
NASM
; <--- description --->
|
||
; compiler: FASM
|
||
; name: Clipboard server/daemon
|
||
; version: 0.2
|
||
; author: barsuk
|
||
|
||
; <--- include all MeOS stuff --->
|
||
include "lang.inc"
|
||
include "..\..\..\..\macros.inc"
|
||
|
||
; <--- start of MenuetOS application --->
|
||
MEOS_APP_START
|
||
|
||
;define DEBUG TRUE
|
||
define DEBUG FALSE
|
||
include "bdebug.inc"
|
||
|
||
DEFAULT_SIZE = 0x10010 ; 64K + size of headers
|
||
MAX_SIZE = 0x01000000 ; 16 M
|
||
MAX_FORMAT = 16
|
||
DELAY = 10 ; 1/10 sec between sending attempts
|
||
ATTEMPT = 5 ; number of sending attempts
|
||
|
||
|
||
; <--- start of code --->
|
||
CODE
|
||
|
||
; ¢®-¯¥à¢ëå, ¤® 㡨âì ¢á¥ @clip, ª ª¨¥ ©¤ãâáï:
|
||
; ¤¥¬® ¡ãä¥à ®¡¬¥ ¤®«¦¥ ¡ëâì ⮫쪮 ®¤¨!
|
||
; ¨ ¨¬ ®ª ¦¥âáï á ¬ë© ¬®«®¤®© ¨§ ¤¥¬®®¢...
|
||
|
||
mov ecx, 2 ; ¯¥à¢ë© ®¬¥à ᫮⠤«ï ¯à®¢¥àª¨
|
||
mov ebp, info
|
||
mov ebx, ebp
|
||
mov edx, 18
|
||
.next_process:
|
||
mov eax, 9
|
||
int 0x40
|
||
cmp dword [ebx + 10], '@CLI'
|
||
jnz .differ
|
||
cmp byte [ebx + 14], 'P'
|
||
jnz .differ
|
||
.similar:
|
||
xchg eax, edx
|
||
mov ebx, 2
|
||
int 0x40
|
||
mov ebx, ebp
|
||
xchg eax, edx
|
||
.differ:
|
||
inc ecx
|
||
cmp ecx, eax
|
||
jae .done ; process not found
|
||
jmp .next_process
|
||
|
||
.done:
|
||
mov eax, 68 ; init heap
|
||
mov ebx, 11
|
||
int 0x40
|
||
|
||
mov eax, 66 ; set hotkey: Ctrl-Alt-V
|
||
mov ebx, 4
|
||
mov ecx, 47
|
||
mov edx, 0x110 ; 0x110
|
||
int 0x40
|
||
print "set hot key (1 bad)"
|
||
pregs
|
||
|
||
mov ebp, DEFAULT_SIZE
|
||
|
||
mov eax, 68 ; get memory for buffer
|
||
mov ebx, 12
|
||
mov ecx, ebp
|
||
int 0x40
|
||
mov esi, IPC_buffer
|
||
mov [esi], eax
|
||
|
||
mov eax, 60 ; define buffer for IPC
|
||
mov ebx, 1
|
||
mov ecx, [esi]
|
||
mov edx, ebp
|
||
int 0x40
|
||
|
||
mov eax, 40
|
||
mov ebx, 01000010b ;
|
||
int 0x40
|
||
|
||
wait_event: ; main cycle
|
||
mov eax, [IPC_buffer]
|
||
mov dword [eax], 0 ; unlock buffer
|
||
mov dword [eax + 4], 8
|
||
|
||
mov eax, 10 ; wait
|
||
int 0x40
|
||
print "event"
|
||
pregs
|
||
|
||
;dec eax
|
||
;dec eax
|
||
cmp eax, 2
|
||
jnz ipc_event
|
||
|
||
print "hotkey"
|
||
|
||
mov eax, 2
|
||
int 0x40
|
||
pregs
|
||
cmp ah, 47 ; "v" up
|
||
jnz wait_event
|
||
|
||
print "hotkey v up"
|
||
; it is hotkey
|
||
mov eax, 1
|
||
mov ebx, eax
|
||
call find_format
|
||
pregs
|
||
cmp eax, -1
|
||
jz wait_event
|
||
mov esi, [data_buffer + eax * 4]
|
||
mov edi, [data_size + eax * 4]
|
||
mov ecx, 2
|
||
print "ping"
|
||
.next:
|
||
mov eax, 72
|
||
movzx edx, byte [esi]
|
||
int 0x40 ; here we should pause if eax = 1
|
||
pregs
|
||
|
||
inc esi
|
||
dec edi
|
||
jnz .next
|
||
jmp wait_event
|
||
|
||
ipc_event:
|
||
|
||
; we get an IPC message
|
||
|
||
print "recv. "
|
||
|
||
mov eax, [IPC_buffer]
|
||
mov dword [eax], 1 ; lock buffer
|
||
mov dword [eax + 4], 8
|
||
|
||
dph1 dword [eax] ; lock
|
||
dph1 dword [eax + 4] ; current used size
|
||
dph1 dword [eax + 8] ; pid
|
||
dph1 dword [eax + 12] ; len
|
||
print ""
|
||
dph1 dword [eax + 16] ; cmd << 16 | fmt
|
||
dph1 dword [eax + 20]
|
||
dph1 dword [eax + 24]
|
||
|
||
mov ebx, [eax + 8 + 4]
|
||
cmp ebx, 8
|
||
jb wait_event ; all my messages have 8-byte header
|
||
; so ignore this one
|
||
|
||
movzx ecx, word [eax + 8 + 8] ; command
|
||
cmp ecx, 1
|
||
jz command_setsize
|
||
cmp ecx, 2
|
||
jz command_set
|
||
cmp ecx, 3
|
||
jz command_getsize
|
||
cmp ecx, 4
|
||
jz command_get
|
||
cmp ecx, 5
|
||
jz command_delete
|
||
jmp wait_event ; unrecognised command
|
||
|
||
command_setsize:
|
||
|
||
; the only thing we really need to do here is to grow IPC buffer
|
||
; no changes are done to real buffer of chosen format
|
||
|
||
; the bad thing is that IPC buffer grows and never becomes less.
|
||
; i want to fix this in the next version.
|
||
|
||
print "set size"
|
||
|
||
mov esi, [IPC_buffer_size]
|
||
mov ecx, [eax + 24] ; size
|
||
add ecx, 0x18 ; for headers
|
||
;pregs
|
||
cmp esi, ecx
|
||
jae wait_event
|
||
print "ipc buffer resize from esi to ecx"
|
||
pregs
|
||
|
||
mov ebp, MAX_SIZE ; sort of protection. forbid transfer of more
|
||
cmp ecx, ebp ; than 16,7 Mb of data through buffer
|
||
jbe not_much
|
||
mov ecx, ebp
|
||
|
||
not_much:
|
||
xchg eax, edi ; edx := [IPC_buffer]
|
||
add ecx, 0x18 ; for headers
|
||
|
||
mov [IPC_buffer_size], ecx
|
||
mov eax, 68
|
||
mov ebx, 12
|
||
int 0x40 ; get memory
|
||
print "get mem for new buf, eax"
|
||
pregs
|
||
mov [IPC_buffer], eax
|
||
|
||
mov dword [eax + 4], 8
|
||
mov edx, ecx
|
||
mov ecx, eax
|
||
mov eax, 60
|
||
mov ebx, 1
|
||
int 0x40 ; make it IPC buffer
|
||
|
||
mov ecx, edi
|
||
mov eax, 68
|
||
mov ebx, 13
|
||
int 0x40 ; free old IPC buffer
|
||
|
||
jmp wait_event
|
||
|
||
command_set:
|
||
print "set"
|
||
|
||
; here we put the data transfered to us to one of internal buffers
|
||
|
||
;;;outs eax + 0x18
|
||
|
||
movzx eax, word [eax + 18] ; format id
|
||
call find_format
|
||
cmp eax, -1
|
||
jz new_format
|
||
mov edx, eax
|
||
|
||
; free old buffer of this format
|
||
|
||
mov ecx, [data_buffer + edx * 4]
|
||
mov eax, 68
|
||
mov ebx, 13
|
||
int 0x40
|
||
jmp set_buffer
|
||
|
||
new_format:
|
||
mov eax, data_count ; allocate a buffer
|
||
mov edx, [eax]
|
||
inc dword [eax] ; no protection, no checks. very bad :(
|
||
set_buffer:
|
||
mov eax, [IPC_buffer]
|
||
mov ecx, dword [eax + 12]
|
||
sub ecx, 8 ; get length of data itself
|
||
; subtract size of my headers
|
||
;pregs
|
||
mov [data_size + edx * 4], ecx ; save length of data
|
||
|
||
mov eax, 68
|
||
mov ebx, 12
|
||
int 0x40
|
||
mov [data_buffer + edx * 4], eax
|
||
|
||
; copy data from IPC to new buffer
|
||
mov esi, [IPC_buffer]
|
||
mov ebp, esi
|
||
add esi, 24 ; start of data
|
||
mov edi, eax
|
||
rep movsb ; oh, me knows that it's bad
|
||
|
||
mov eax, ebp
|
||
movzx ecx, word [eax + 18] ; format id
|
||
mov [data_format + edx * 4], ecx
|
||
|
||
; debug
|
||
; print "set debug"
|
||
; mov eax, [data_buffer + edx * 4]
|
||
; mov ebx, [data_size + edx * 4]
|
||
; mov ecx, [data_format + edx * 4]
|
||
; pregs
|
||
|
||
jmp wait_event
|
||
|
||
command_delete:
|
||
movzx eax, word [eax + 18] ; format id
|
||
cmp eax, -1
|
||
jz command_clear
|
||
call find_format
|
||
cmp eax, -1
|
||
jz wait_event
|
||
mov ecx, [data_buffer + eax * 4]
|
||
mov [data_format + eax * 4], 0
|
||
mov eax, 68
|
||
mov ebx, 13
|
||
int 0x40
|
||
jmp wait_event
|
||
|
||
command_clear:
|
||
mov eax, 68
|
||
mov ebx, 13
|
||
mov edx, data_buffer
|
||
.next:
|
||
mov ecx, [edx]
|
||
jecxz .nofree
|
||
int 0x40
|
||
.nofree:
|
||
mov [edx + data_size - data_buffer], 0
|
||
add edx, 4
|
||
cmp edx, data_format
|
||
jnae .next
|
||
jmp wait_event
|
||
|
||
command_getsize:
|
||
|
||
print "get size"
|
||
|
||
; we should send reply, containing size of data with chosen format id
|
||
movzx eax, word [eax + 18] ; format id
|
||
mov esi, 4
|
||
call find_format
|
||
;pregs
|
||
cmp eax, -1
|
||
jz zero_size
|
||
|
||
lea edx, [data_size + eax * 4]
|
||
mov eax, [edx]
|
||
jmp send_getsize
|
||
zero_size:
|
||
mov edx, dw_zero ; send 0 to indicate that the buffer is empty
|
||
send_getsize:
|
||
jmp send_msg
|
||
|
||
command_get:
|
||
print "get"
|
||
|
||
; we need to send the data
|
||
|
||
; [:||||:]
|
||
|
||
movzx eax, word [eax + 18] ; format id
|
||
call find_format
|
||
cmp eax, -1
|
||
jz wait_event
|
||
mov edi, eax ; ¥ä¨£
|
||
|
||
mov edx, [data_buffer + edi * 4]
|
||
mov esi, [data_size + edi * 4]
|
||
;jmp send_msg
|
||
|
||
send_msg:
|
||
|
||
; for debugging
|
||
; mov eax, 5
|
||
; mov ebx, DELAY*5
|
||
; int 0x40
|
||
|
||
mov ebp, ATTEMPT ; number of attempts to send
|
||
mov eax, [IPC_buffer]
|
||
mov ecx, [eax + 8] ; sender PID
|
||
mov eax, 60
|
||
mov ebx, 2
|
||
int 0x40
|
||
print "send data result eax"
|
||
pregs
|
||
cmp eax, 2
|
||
jz .wait
|
||
cmp eax, 3 ; it is strange..
|
||
jz .wait ; maybe he needs time to resize his buf
|
||
jmp wait_event
|
||
.wait:
|
||
dec ebp
|
||
jz wait_event
|
||
mov eax, 5 ; sleep a bit
|
||
mov ebx, DELAY
|
||
int 0x40
|
||
jmp send_msg
|
||
|
||
|
||
find_format: ; small function returning number of format
|
||
|
||
;print "find format"
|
||
push ebx
|
||
mov ebx, eax ; format id
|
||
and ebx, 0xffff ; it is word
|
||
xor eax, eax
|
||
next:
|
||
cmp [data_format + eax * 4], ebx
|
||
jz found
|
||
inc eax
|
||
cmp eax, MAX_FORMAT
|
||
jb next
|
||
not_found:
|
||
or eax, -1
|
||
found:
|
||
;pregs
|
||
pop ebx
|
||
ret
|
||
|
||
; <--- initialised data --->
|
||
DATA
|
||
IPC_buffer dd 0
|
||
IPC_buffer_size dd DEFAULT_SIZE ; initially 64K
|
||
|
||
info db 1024 dup(0) ; for process info
|
||
|
||
data_buffer dd MAX_FORMAT dup(0) ; buffer for some format
|
||
; (256 formats max)
|
||
data_format dd MAX_FORMAT dup(0) ; format id
|
||
data_size dd MAX_FORMAT dup(0) ; size of buffer
|
||
data_count dd 0 ; number of formats used
|
||
dw_zero dd 0 ; used to tell that
|
||
; we don't have a format
|
||
|
||
; <--- uninitialised data --->
|
||
UDATA
|
||
|
||
|
||
MEOS_APP_END
|
||
; <--- end of MenuetOS application --->
|