Reverse Engineering for Beginners

CHAPTER 51. C++ CHAPTER 51. C++

_main PROC
sub esp, 72

push 7

push OFFSET $SG39512

lea ecx, DWORD PTR _s1$[esp+80]

mov DWORD PTR _s1$[esp+100], 15

mov DWORD PTR _s1$[esp+96], 0

mov BYTE PTR _s1$[esp+80], 0

call ?assign@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV12@PBDI@Z ;⤦

Ç std::basic_string<char,std::char_traits<char>,std::allocator<char> >::assign

push 7

push OFFSET $SG39514

lea ecx, DWORD PTR _s2$[esp+80]

mov DWORD PTR _s2$[esp+100], 15

mov DWORD PTR _s2$[esp+96], 0

mov BYTE PTR _s2$[esp+80], 0

call ?assign@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV12@PBDI@Z ;⤦

Ç std::basic_string<char,std::char_traits<char>,std::allocator<char> >::assign

lea eax, DWORD PTR _s2$[esp+72]

push eax

lea eax, DWORD PTR _s1$[esp+76]

push eax

lea eax, DWORD PTR _s3$[esp+80]

push eax

call ??$?HDU?$char_traits@D@std@@V?$allocator@D@1@@std@@YA?AV?$basic_string@DU?⤦

Ç$char_traits@D@std@@V?$allocator@D@2@@0@ABV10@0@Z ; std::operator+<char,std::char_traits<⤦

Çchar>,std::allocator<char> >

; inlined c_str() method:

cmp DWORD PTR _s3$[esp+104], 16

lea eax, DWORD PTR _s3$[esp+84]

cmovae eax, DWORD PTR _s3$[esp+84]

push eax

push OFFSET $SG39581

call _printf

add esp, 20

cmp DWORD PTR _s3$[esp+92], 16
jb SHORT $LN119@main
push DWORD PTR _s3$[esp+72]
call ??3@YAXPAX@Z ; operator delete
add esp, 4
$LN119@main:
cmp DWORD PTR _s2$[esp+92], 16
mov DWORD PTR _s3$[esp+92], 15
mov DWORD PTR _s3$[esp+88], 0
mov BYTE PTR _s3$[esp+72], 0
jb SHORT $LN151@main
push DWORD PTR _s2$[esp+72]
call ??3@YAXPAX@Z ; operator delete
add esp, 4
$LN151@main:
cmp DWORD PTR _s1$[esp+92], 16
mov DWORD PTR _s2$[esp+92], 15
mov DWORD PTR _s2$[esp+88], 0
mov BYTE PTR _s2$[esp+72], 0
jb SHORT $LN195@main
push DWORD PTR _s1$[esp+72]
call ??3@YAXPAX@Z ; operator delete
add esp, 4
$LN195@main:
xor eax, eax
add esp, 72
ret 0
_main ENDP