comment ~
This is just for those of you who haven't yet
used __getmainargs from MSVCRT.DLL
i just thought it'd be worth a look for some of you.
It'll save you the hassle of using GetCommandLineA
or GetCommandLineW being parsed with CommandLineToArgvW
which is unicode only..
There is __getmainargsw for unicode.
The INCLUDELIB directive is in each *.INC file.
MACROS.ASM is also placed in the INCLUDE directory.
Use latest version of MASM.
ml /Cp /coff /c /IC:\MASM32\INCLUDE showargs.asm
link /SUBSYSTEM:CONSOLE /LIBPATH:C:\MASM32\LIB showargs.obj
Example:
C:\showargs this is "a test for" __getmainargs
Argv[0]: showargs
Argv[1]: this
Argv[2]: is
Argv[3]: a test for
Argv[4]: __getmainargs
The fourth arguement of __getmainargs is an option for wildcard..either TRUE or FALSE
Say you wanted to include all the files in the current directory as parameters,
then you would set the fourth __getmainargs arguement to TRUE and supply "*" in commandline.
Or you could have only files of a particular extension, like *.asm
If it can't find any asm files in the current directory, it'll display
the arguement as supplied, as in that example would be "*.asm"
Anyone writing console apps with 32-bit assembly would probably prefer to use
__getmainargs than other parsers.
It definitely makes the task a whole lot easier without prewritten code.
~
.586
.model flat,stdcall
include <windows.inc>
include <kernel32.inc>
include <msvcrt.inc>
include <macros.asm>
main proto :dword, :dword
.data
bWildCard dd 0
pEnv dd 0 ; environment variables
pArgv dd 0 ; arguement vectors
nArgc dd 0 ; arguement count
stinfo STARTUPINFO <?>
.code
start:
mov bWildCard, FALSE
invoke __getmainargs,addr nArgc,addr pArgv,addr pEnv,bWildCard,addr stinfo
invoke main,nArgc,pArgv
exit
main proc argc:dword, argv:dword
mov ebx, argv
mov edi, argc
xor esi, esi
.while (edi >= 1)
invoke printf,
chr$(10,'Argv[%d]: %s'),
esi,
dword ptr [ebx + 4 * esi]
dec edi
inc esi
.endw
ret
main endp
end start
The code tags seem to have problems displaying TABs?..doesn't matter now.
Nice work :U
Have a look also at this thread:
msvcrt include and library
http://www.masmforum.com/simple/index.php?topic=480.0
Yeah, I know i only post it now, but i did use it since around march/april last year.
No problem, __getmainargs does the job :U
A quick example with CommandLineToArgvW :
.386
.model flat,stdcall
option casemap : none
include UnicodeCmdLine.inc
.data
format1 db 'Command line parameter = %s',13,10,0
.code
start:
call main
invoke ExitProcess,0
main PROC uses esi edi ebx
LOCAL argc:DWORD
LOCAL argv:DWORD
LOCAL buffer[128]
LOCAL buffer2[160]
invoke GetCommandLineW
lea edx,argc
invoke CommandLineToArgvW,eax,edx
mov ebx,argc
mov argv,eax
ProcessParam:
mov eax,argv
mov esi,DWORD PTR [eax]
lea edi,buffer
xor ecx,ecx
sub ecx,1
@@:
add ecx,1
mov al,BYTE PTR [esi+2*ecx]
mov BYTE PTR [edi+ecx],al
test al,al
jnz @b
invoke wsprintf,ADDR buffer2,ADDR format1,edi
invoke StdOut,ADDR buffer2
add argv,4
sub ebx,1
jnz ProcessParam
ret
main ENDP
END start
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