Programming Forums > Application Development > Assembly

lepricaun · Jan 11th, 2005, 2:04 AM

Hi all,

i'm trying to get the following program to work, i need this option for a program i am writing, but it only works when i use the following line to read into the buffer:

(Toggle Plain Text)

invoke StdIn,addr buffer,4

as soon as i change the '4' into a longer value it won't work anymore...

is there a workaround for this?

program:

(Toggle Plain Text)

.386 
.model flat,stdcall
option casemap:none

include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
include \masm32\include\user32.inc
include \masm32\include\masm32.inc

includelib \masm32\lib\kernel32.lib
includelib \masm32\lib\user32.lib
includelib \masm32\lib\masm32.lib

.data

string1 db "Enter: ",0
string2 db 13,10,"equal",0
string3 db 13,10,"not equal",0
teststring db "exit",0
test2 db "exit",0
buffer db 50 dup (?)
vier db "4",0
.code

start:

invoke StdOut,addr string1
invoke StdIn,addr buffer,6
invoke lstrcmpA,addr test2,addr buffer
.if eax==0
invoke StdOut,addr string2
invoke ExitProcess,0
.endif
invoke StdOut,addr string3
invoke ExitProcess,0

end start

i've tried adding the ending [color=blue 13 and 10 (CR and LF)[/color] to the buffer and then it works. but this will not work for my program since i need to compare the userinput with the strings generated by the Process32Next API...

piece of my real program code:

(Toggle Plain Text)

invoke Process32Next,[Snap],offset proc32

;if we have finished the last process listing
;------------------------------------------------------
.if eax!=TRUE
jmp again
.endif
;------------------------------------------------------

invoke lstrcmpA, addr ProcToKill,addr proc32.szExeFile
.if eax == 0
jmp contin
.endif

thanks in advance,

liquidsilver · Mar 11th, 2005, 2:37 PM

Have you considered using interupts, that should work.

lepricaun · Mar 16th, 2005, 5:19 AM

Quote:

Have you considered using interupts, that should work.

you mean the dos interrupt? masm isn't really happy using them, but i've already solved the problem by now... :
http://www.white-scorpion.nl/programs/pk.zip

that's the program i was writing. (source included).

Thanks for your response tho

Jan 11th, 2005, 2:04 AM	#1
lepricaun Hobbyist Programmer Join Date: Aug 2004 Location: The Netherlands Posts: 111 Rep Power: 4	problem with lstrcmp (masm32) Hi all, i'm trying to get the following program to work, i need this option for a program i am writing, but it only works when i use the following line to read into the buffer: (Toggle Plain Text) invoke StdIn,addr buffer,4 invoke StdIn,addr buffer,4 as soon as i change the '4' into a longer value it won't work anymore... is there a workaround for this? program: (Toggle Plain Text) .386 .model flat,stdcall option casemap:none include \masm32\include\windows.inc include \masm32\include\kernel32.inc include \masm32\include\user32.inc include \masm32\include\masm32.inc includelib \masm32\lib\kernel32.lib includelib \masm32\lib\user32.lib includelib \masm32\lib\masm32.lib .data string1 db "Enter: ",0 string2 db 13,10,"equal",0 string3 db 13,10,"not equal",0 teststring db "exit",0 test2 db "exit",0 buffer db 50 dup (?) vier db "4",0 .code start: invoke StdOut,addr string1 invoke StdIn,addr buffer,6 invoke lstrcmpA,addr test2,addr buffer .if eax==0 invoke StdOut,addr string2 invoke ExitProcess,0 .endif invoke StdOut,addr string3 invoke ExitProcess,0 end start .386 .model flat,stdcall option casemap:none include \masm32\include\windows.inc include \masm32\include\kernel32.inc include \masm32\include\user32.inc include \masm32\include\masm32.inc includelib \masm32\lib\kernel32.lib includelib \masm32\lib\user32.lib includelib \masm32\lib\masm32.lib .data string1 db "Enter: ",0 string2 db 13,10,"equal",0 string3 db 13,10,"not equal",0 teststring db "exit",0 test2 db "exit",0 buffer db 50 dup (?) vier db "4",0 .code start: invoke StdOut,addr string1 invoke StdIn,addr buffer,6 invoke lstrcmpA,addr test2,addr buffer .if eax==0 invoke StdOut,addr string2 invoke ExitProcess,0 .endif invoke StdOut,addr string3 invoke ExitProcess,0 end start i've tried adding the ending [color=blue 13 and 10 (CR and LF)[/color] to the buffer and then it works. but this will not work for my program since i need to compare the userinput with the strings generated by the Process32Next API... piece of my real program code: (Toggle Plain Text) invoke Process32Next,[Snap],offset proc32 ;if we have finished the last process listing ;------------------------------------------------------ .if eax!=TRUE jmp again .endif ;------------------------------------------------------ invoke lstrcmpA, addr ProcToKill,addr proc32.szExeFile .if eax == 0 jmp contin .endif invoke Process32Next,[Snap],offset proc32 ;if we have finished the last process listing ;------------------------------------------------------ .if eax!=TRUE jmp again .endif ;------------------------------------------------------ invoke lstrcmpA, addr ProcToKill,addr proc32.szExeFile .if eax == 0 jmp contin .endif thanks in advance, __________________ http://www.white-scorpion.nl

Mar 11th, 2005, 2:37 PM	#2
liquidsilver Newbie Join Date: Mar 2005 Location: South Africa Posts: 21 Rep Power: 0	Have you considered using interupts, that should work. __________________ Small is beautiful

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > Assembly

problem with lstrcmp (masm32)