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;; Copyright (C) Vasiliy Kosenko (vkos), 2009 ;;
;; Launch 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 2 ;;
;; of the License, or (at your option) any later version. ;;
;; ;;
;; Launch 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 Launch. ;;
;; If not, see <http://www.gnu.org/licenses/>. ;;
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;; Launch finds program in search dirictories and runs it. ;;
;; For more details see readme.txt ;;
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APP_NAME fix 'Launch'
APP_VERSION fix '0.1.4'
use32
org 0x0
db 'MENUET01'
dd 0x01
dd START
dd APP_END
dd MEM_END
dd APP_STACK
dd args
dd path
define PATH_MAX_LEN 1024
define DEBUG_MAX_LEN 8
define DEBUG_DEFAULT debug_no_num
define BUFF_SIZE 1024
include 'macros.inc'
include 'proc32.inc'
include 'libio.inc'
include 'mem.inc'
include 'dll.inc'
START:
;; Initialize process heap
mcall 68,11
test eax, eax
jz exit
;; Import modules
stdcall dll.Load,importTable
test eax, eax
jnz exit
read_ini:
;; First read config in /sys/etc
invoke ini.get_str, etc_cfg, cfg_main, cfg_path, search_path, PATH_MAX_LEN, empty_str
;; Next, read config from current directory
;; Find end of path string
.find_path_eol:
mov edi, path
mov ecx, PATH_MAX_LEN
xor al, al
cld
repne scasb
;; Append ext to run path (NOTE: this work only when config file has name <launch-file-name>.cfg and ext size is dword)
mov eax, dword [cfg_ext]
dec edi
mov dword [edi], eax
mov byte [edi+5], 0
;; Currently there is no checking for repeating pathes, so we should only concatenate two strings
;; So we need to find end of current search_path string
.find_search_eol:
mov edi, search_path
mov ecx, PATH_MAX_LEN
xor al, al
;cld
repne scasb
dec edi
;; Now we need to correct buffer length
mov eax, path+PATH_MAX_LEN
sub eax, edi
;; Read ini
invoke ini.get_str, path, cfg_main, cfg_path, edi, PATH_MAX_LEN, empty_str
read_ini_debug:
;; Read debug options from config files
invoke ini.get_str, etc_cfg, cfg_debug, cfg_debug, debug_option, DEBUG_MAX_LEN, DEBUG_DEFAULT
invoke ini.get_str, path, cfg_debug, cfg_debug, debug_option, DEBUG_MAX_LEN, debug_option
;; Now convert debug_option from string to number of debug mode
mov ebx, modes-4
.convert:
mov al, byte [debug_option]
cmp al, 10
jbe .converted
.convert_nxt:
add ebx, 4
mov esi, dword [ebx]
test esi, esi
je .set_default ;; String is incorrect, so set default
mov edi, debug_option
.conv_loop:
mov al, byte [esi]
cmp al, byte [edi]
jne .convert_nxt ;; Not equal, so try next
test al, al
je .found ;; Equal, end of loop
inc esi
inc edi
jmp .conv_loop
.set_default:
mov al, byte [DEBUG_DEFAULT]
mov byte [debug_option], al
jmp .converted
.found:
sub ebx, modes
shr ebx, 2
add ebx, modes_nums
mov al, byte [ebx]
mov byte [debug_option], al
.converted:
dec al
test al, al
je .ok
dec al
test al, al
je .con_init
.noconsole:
mov al, 1
mov byte [debug_option], al
jmp .ok
.con_init:
stdcall dll.Load, consoleImport
test eax, eax
jnz .noconsole
invoke con.init, -1, -1, -1, -1, WinTitle
.read_level:
invoke ini.get_int, etc_cfg, cfg_debug, cfg_level, 0
invoke ini.get_int, path, cfg_debug, cfg_level, eax
mov dword [debug_level], eax
.ok:
parse_args:
;; Now parse command line arguments
;; TODO: use optparse library
;; Currently the only argument to parse is program name
.skip_spaces:
mov ecx, -1
mov edi, args
mov al, ' '
xor bl, bl
;cld
repe scasb
push edi
mov ecx, -1
@@:
scasb
je @f
xchg al, bl
dec edi
scasb
jne @b
@@:
mov dword [prog_args], edi
pop edi
dec edi
;; Now edi = program name
;; End of preparations! Now we can find file and launch it.
search_file:
push edi
mov esi, search_path
xchg esi, [esp]
.loop:
or dl, dl
je .prn_dbg
xor dl, dl
jmp .prn_end
.prn_dbg:
push eax
mov al, byte [debug_option]
dec al
test al, al
je .prn_stp
mov eax, dword [debug_level]
or eax, eax
je .prn_stp
dec eax
or eax, eax
je .prn_1
.prn_1:
cinvoke con.printf, message_dbg_not_found, buff
.prn_stp:
pop eax
.prn_end:
xor eax, eax ;; When we check is proramme launched we are checking for eax
xchg esi, [esp]
mov edi, buff
.copy_path:
lodsb
cmp al, ';'
je .copy_file
or al, al
je exit
stosb
jmp .copy_path
.copy_file:
xchg esi, [esp]
push esi
.cp_file_loop:
lodsb
or al, al
je .copy_end
cmp al, ' '
je .copy_end
stosb
jmp .cp_file_loop
.copy_end:
pop esi
xor al, al
stosb
;; Try to launch
mov dword [LaunchStruct.Function], 7
push dword [prog_args]
pop dword [LaunchStruct.Arguments]
mov dword [LaunchStruct.Flags], 0
mov dword [LaunchStruct.Zero], 0
mov dword [LaunchStruct.FileNameP], buff
mcall 70, LaunchStruct
cmp eax, 0
jl .loop
exit:
push eax
;; If console is present we should write some info
mov al, byte [debug_option]
cmp al, 2
je .write_console
.close:
mcall -1
.write_console:
pop eax
test eax, eax
jz .write_error
.write_launched:
cinvoke con.printf, message_ok, buff, eax, eax
jmp .wr_end
.write_error:
pop edi
cinvoke con.printf, message_error, edi
.wr_end:
invoke con.exit, 0
jmp .close
align 16
importTable:
library \
libini, 'libini.obj';, \
; libio, 'libio.obj', \
import libini, \
ini.get_str ,'ini.get_str', \
\; ini.set_str ,'ini.set_str', \
ini.get_int ,'ini.get_int';, \
\; ini.set_int ,'ini.set_int', \
; ini.get_color,'ini.get_color', \
; ini.set_color,'ini.set_color'
;import libio, \
; 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.truncate ,'file.truncate', \
; file.close ,'file.close'
consoleImport:
library \
conlib, 'console.obj'
import conlib, \
con.init, 'con.init',\
con.exit, 'con.exit',\
con.printf, 'con.printf';,\
; con.write_asciiz, 'con.write_asciiz'
align 16
APP_DATA:
WinTitle:
db APP_NAME, ' ', APP_VERSION, 0
message_dbg_not_found:
db '%s not found', 10, 0
message_error:
db 'File (%s) not found!', 0
message_ok:
db '%s loaded succesfully. PID: %d (0x%X)'
empty_str:
db 0
etc_cfg:
db '/sys/etc/'
cfg_name:
db 'launch'
cfg_ext:
db '.cfg', 0
cfg_main:
db 'main', 0
cfg_path:
db 'path', 0
cfg_debug:
db 'debug', 0
cfg_level:
db 'level', 0
modes:
dd debug_no
dd debug_console
dd 0
debug_no:
db 'no', 0
debug_console:
db 'console', 0
modes_nums:
debug_no_num:
db 1
debug_console_num:
db 2
debug_level:
dd 0
LaunchStruct FileInfoRun
args: db 0
APP_END:
rb 255
prog_args:
rd 1
path:
rb 1024
search_path:
rb PATH_MAX_LEN
debug_option:
rb DEBUG_MAX_LEN
buff:
rb BUFF_SIZE
rb 0x1000 ;; 4 Kb stack
APP_STACK:
MEM_END: