Function at 0x403260
Capabilities:
Get file size
Read file on windows

Disassembly:
sub esp, 0x18
mov ecx, dword [esp + 0x34]
push ebx
push ebp
push esi
push edi
lea ebp, [eax + 0xccc]
mov eax, dword [eax]
push ecx
push eax
mov dword [esp + 0x24], eax
call dword [sym.imp.KERNEL32.dll_GetFileSizeEx]
test eax, eax
jne 0x4032a6
push str.GetFileSizeEx__
push 0x11e
push str..QHImageHlp.c
xor edx, edx
call fcn.00406230
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
mov ecx, dword [esp + 0x2c]
xor eax, eax
add ecx, 8
xor edi, edi
xor ebx, ebx
cmp eax, dword [esp + 0x30]
mov dword [esp + 0x20], eax
mov dword [esp + 0x14], ecx
jne 0x4032ce
mov edx, dword [esp + 0x44]
mov esi, dword [edx]
mov eax, edx
mov eax, dword [eax + 4]
jmp 0x4032d4
mov esi, dword [ecx - 8]
mov eax, dword [ecx - 4]
sub esi, edi
sbb eax, ebx
mov edx, esi
shrd edx, eax, 0xf
shr eax, 0xf
and esi, 0x7fff
mov dword [esp + 0x18], edx
jne 0x4032f4
mov esi, 0x8000
jmp 0x4032f9
inc edx
mov dword [esp + 0x18], edx
test edx, edx
jbe 0x40338b
mov ecx, dword [esp + 0x1c]
push 0
push 0
push ebx
push edi
push ecx
call dword [sym.imp.KERNEL32.dll_SetFilePointerEx]
test eax, eax
je 0x40346b
mov eax, dword [esp + 0x1c]
push 0
lea edx, [esp + 0x28]
push edx
push esi
push ebp
push eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x40348e
cmp esi, dword [esp + 0x24]
jne 0x4034b1
mov eax, dword [esp + 0x34]
test eax, eax
je 0x403359
mov ecx, dword [esp + 0x38]
push esi
push ebp
push ecx
call eax
test eax, eax
je 0x4034d7
mov eax, dword [esp + 0x3c]
test eax, eax
je 0x403372
mov edx, dword [esp + 0x40]
push esi
push ebp
push edx
call eax
test eax, eax
je 0x4034e3
add edi, esi
adc ebx, 0
sub dword [esp + 0x18], 1
mov esi, 0x8000
jne 0x403301
mov ecx, dword [esp + 0x14]
mov eax, dword [esp + 0x20]
cmp eax, dword [esp + 0x30]
jae 0x403448
mov esi, dword [ecx]
test esi, esi
je 0x40345e
cmp dword [ecx + 8], 0
jne 0x4033f6
push 0
push 0
push ebx
push edi
mov edi, dword [esp + 0x2c]
push edi
call dword [sym.imp.KERNEL32.dll_SetFilePointerEx]
test eax, eax
je 0x40346b
mov ecx, ebp
mov edx, edi
call fcn.00402760
test eax, eax
je 0x40353d
mov eax, dword [esp + 0x3c]
test eax, eax
je 0x4033f2
mov ecx, dword [esp + 0x14]
mov edx, dword [ecx]
mov ecx, dword [esp + 0x40]
push edx
push ebp
push ecx
call eax
test eax, eax
je 0x4034ef
mov ecx, dword [esp + 0x14]
mov esi, dword [esp + 0x34]
test esi, esi
je 0x403438
cmp dword [ecx + 4], 0
je 0x403438
mov eax, dword [ecx]
cmp eax, 0x8000
ja 0x4034fb
push eax
push 0
push ebp
call sub.MSVCR90.dll_memset
mov edx, dword [esp + 0x20]
mov eax, dword [edx]
mov ecx, dword [esp + 0x44]
add esp, 0xc
push eax
push ebp
push ecx
call esi
test eax, eax
je 0x403521
mov ecx, dword [esp + 0x14]
mov edi, dword [ecx]
mov ebx, dword [ecx - 4]
mov eax, dword [esp + 0x20]
xor edx, edx
add edi, dword [ecx - 8]
adc ebx, edx
inc eax
add ecx, 0x18
mov dword [esp + 0x20], eax
mov dword [esp + 0x14], ecx
cmp eax, dword [esp + 0x30]
jbe 0x4032bf
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push str.SetFilePointerEx__
push 0xf9
push str..QHImageHlp.c
xor edx, edx
call fcn.00406230
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push str.ReadFile__
push 0xfc
push str..QHImageHlp.c
xor edx, edx
call fcn.00406230
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push 0x43bf68
push 0xfe
mov edx, 1
push str..QHImageHlp.c
call fcn.00406360
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push str._rT
push 0x374
jmp 0x40352b
push str._rT
push 0x379
jmp 0x40352b
push str._rT
push 0x38b
jmp 0x40352b
push 0x43c038
push 0x392
mov edx, 8
push str..QHImageHlp.c
call fcn.00406360
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push str._rT
push 0x395
mov edx, 0x11
push str..QHImageHlp.c
call fcn.00406360
add esp, 0xc
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x18
ret