3 string into 1 variable

[akna]

Hi!

My code does not work.
What's wrong?


.386
.model flat,stdcall
option casemap:none
include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
includelib \masm32\lib\kernel32.lib
include \masm32\include\user32.inc
includelib \masm32\lib\user32.lib
include \masm32\include\advapi32.inc
includelib \masm32\lib\advapi32.lib

.data

dir db "c:\Documents and Settings\",0
file db "\log.txt",0
.data?

user_name db 64 DUP(?)
b_size dd ?

.code
start:
invoke GetUserName,addr user_name,addr b_size
invoke CreateFile,addr dir and user_name and file,GENERIC_READ,FILE_SHARE_READ,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL
invoke ExitProcess,0
end start

[dedndave]

addr dir and user_name and file

make one variable with the complete path/file

AND is a logical operator

[dedndave]

also, instead of....

.386
.model flat,stdcall
option casemap:none
include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
includelib \masm32\lib\kernel32.lib
include \masm32\include\user32.inc
includelib \masm32\lib\user32.lib
include \masm32\include\advapi32.inc
includelib \masm32\lib\advapi32.lib

just use

        include \masm32\include\masm32rt.inc

it takes care of all that stuff (including .486, model, case)

[akna]

thx, but how I know the 3 string to bind?

[ramguru]

'and' doesn't work with strings, it's only for bits
you want to:
1) copy DIRECTORY_name to a big enough char buffer
2) append FILE_name to that buffer
like:

Code:

.data?
    recv_buf db 64 dup (?)
..
invoke lstrcpy, ADDR recv_buf, ADDR dir
invoke lstrcat, ADDR recv_buf, ADDR file
invoke CreateFile,addr recv_buf...

[dedndave]

lol
well - you need to take the pieces and make one string
there are string concatonation macros in the masm32 files, but i would probably make my own little routine
try to avoid using names like "dir" and "file" - bad habit

        .DATA

PathStr  db "c:\Documents and Settings\"
PathCat  db 80 dup(0)
;end of Path structure

FileNam  db "\log.txt",0

        .DATA?

user_name db 64 DUP(?)
b_size dd ?

        .CODE

.
.
.
        cld
        mov     esi,offset user_name
        mov     edi,offset PathCat

loop01: lodsb
        or      al,al
        jz      AddFil

        stosb
        jmp     loop01

AddFil: mov     esi,offset FileNam

loop02: lodsb
        or      al,al
        jz      PnDone

        stosb
        jmp     loop02

PnDone: stosb
.
.
.

[akna]

.data?
    recv_buf db 64 dup (?)
..
invoke lstrcpy, ADDR recv_buf, ADDR dir
invoke lstrcat, ADDR recv_buf, ADDR file
invoke CreateFile,addr recv_buf...

Thanx man, it's work!

[dedndave]

my pleasure.....
$50 please