Using standard C streams with MASM, __iob_func is redirected to piob / an example on extending MASM functionality

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Vortex

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Joined: 13-May 04

Here is a quick example to use standard C streams with Masm :

CODE

.386
.model flat, stdcall
option casemap:none

include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
include \masm32\include\msvcrt.inc
includelib \masm32\lib\kernel32.lib
includelib \masm32\lib\msvcrt.lib

include Streams.inc

.data

msg db 'stdout = %X',0

.data?

stdout dd ?
stdin dd ?
stderr dd ?

.code

start:

call crt___p__iob
mov stdin,eax ; #define stdin (&__iob_func()[0])
add eax,SIZEOF(FILE)
mov stdout,eax ; #define stdout (&__iob_func()[1])
add eax,SIZEOF(FILE)
mov stderr,eax ; #define stderr (&__iob_func()[2])
invoke crt_fprintf,stdout,ADDR msg,stdout
invoke ExitProcess,0

END start

__iob_func is redirected to __p__iob

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Using standard C streams with MASM, __iob_func is redirected to __p__iob / an example on extending MASM functionality

Using standard C streams with MASM, __iob_func is redirected to piob / an example on extending MASM functionality