Function at 0x405070
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 0x4050b6
push 0x487584
push 0x11e
push 0x48750c
xor edx, edx
call fcn.00408a80
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 0x4050de
mov edx, dword [esp + 0x44]
mov esi, dword [edx]
mov eax, edx
mov eax, dword [eax + 4]
jmp 0x4050e4
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 0x405104
mov esi, 0x8000
jmp 0x405109
inc edx
mov dword [esp + 0x18], edx
test edx, edx
jbe 0x40519b
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 0x40527b
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 0x40529e
cmp esi, dword [esp + 0x24]
jne 0x4052c1
mov eax, dword [esp + 0x34]
test eax, eax
je 0x405169
mov ecx, dword [esp + 0x38]
push esi
push ebp
push ecx
call eax
test eax, eax
je 0x4052e7
mov eax, dword [esp + 0x3c]
test eax, eax
je 0x405182
mov edx, dword [esp + 0x40]
push esi
push ebp
push edx
call eax
test eax, eax
je 0x4052f3
add edi, esi
adc ebx, 0
sub dword [esp + 0x18], 1
mov esi, 0x8000
jne 0x405111
mov ecx, dword [esp + 0x14]
mov eax, dword [esp + 0x20]
cmp eax, dword [esp + 0x30]
jae 0x405258
mov esi, dword [ecx]
test esi, esi
je 0x40526e
cmp dword [ecx + 8], 0
jne 0x405206
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 0x40527b
mov ecx, ebp
mov edx, edi
call fcn.00403fe0
test eax, eax
je 0x40534d
mov eax, dword [esp + 0x3c]
test eax, eax
je 0x405202
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 0x4052ff
mov ecx, dword [esp + 0x14]
mov esi, dword [esp + 0x34]
test esi, esi
je 0x405248
cmp dword [ecx + 4], 0
je 0x405248
mov eax, dword [ecx]
cmp eax, 0x8000
ja 0x40530b
push eax
push 0
push ebp
call fcn.00449ba0
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 0x405331
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 0x4050cf
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push 0x4874e0
push 0xf9
push 0x48750c
xor edx, edx
call fcn.00408a80
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push 0x48752c
push 0xfc
push 0x48750c
xor edx, edx
call fcn.00408a80
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push 0x487548
push 0xfe
mov edx, 1
push 0x48750c
call fcn.00408e80
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push 0x487674
push 0x374
jmp 0x40533b
push 0x487674
push 0x379
jmp 0x40533b
push 0x487674
push 0x38b
jmp 0x40533b
push 0x487684
push 0x392
mov edx, 8
push 0x48750c
call fcn.00408e80
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
push 0x487674
push 0x395
mov edx, 0x11
push 0x48750c
call fcn.00408e80
add esp, 0xc
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x18
ret