Function at 0x407590
Capabilities:
Get file size
Read file on windows

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x43abf9
push eax
mov dword fs:[0], esp
sub esp, 0xe0
push ebx
push ebp
push esi
mov esi, ecx
push edi
cmp byte [esi + 4], 0xdb
je 0x4075c4
xor ebx, ebx
push ebx
call fcn.00402430
add esp, 4
jmp 0x4075c6
xor ebx, ebx
mov eax, dword [esi + 8]
cmp eax, ebx
je 0x4075e0
mov cl, byte [esi + 5]
test cl, cl
jne 0x4075dd
push eax
call fcn.0041a4bb
add esp, 4
mov dword [esi + 8], ebx
lea ecx, [esp + 0x38]
mov dword [esi + 0xc], ebx
mov dword [esi + 0x10], ebx
mov byte [esi + 5], 0
call fcn.00404670
mov eax, dword [esp + 0x100]
lea ecx, [esp + 0x38]
push eax
mov dword [esp + 0xfc], ebx
call fcn.00404850
mov ebp, dword [esp + 0x104]
lea ecx, [esp + 0x38]
push ebp
push ecx
call fcn.004057b0
mov edi, eax
add esp, 8
cmp edi, 0xffffffff
mov dword [esp + 0x14], edi
jne 0x407642
lea ecx, [esp + 0x38]
mov dword [esp + 0xf8], eax
call fcn.00404730
xor al, al
jmp 0x407820
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, 0xffffffff
mov dword [esp + 0x18], eax
jne 0x4076b9
cmp ebp, ebx
je 0x407694
lea ecx, [esp + 0x1c]
call fcn.00402a10
lea ecx, [esp + 0x1c]
mov byte [esp + 0xf8], 1
call fcn.00403170
mov esi, dword [ebp]
lea ecx, [esp + 0x1c]
call fcn.00419a90
push eax
mov ecx, ebp
call dword [esi + 0x10]
lea ecx, [esp + 0x1c]
mov byte [esp + 0xf8], 0
call fcn.00402a80
push ebx
push edi
call fcn.00412e70
add esp, 8
lea ecx, [esp + 0x38]
mov dword [esp + 0xf8], 0xffffffff
call fcn.00404730
xor al, al
jmp 0x407820
cmp eax, ebx
jne 0x4076e2
push ebx
push edi
call fcn.00412e70
add esp, 8
lea ecx, [esp + 0x38]
mov dword [esp + 0xf8], 0xffffffff
call fcn.00404730
mov al, 1
jmp 0x407820
lea ebx, [eax + 4]
push ebx
call fcn.0041a873
mov ecx, ebx
mov edi, eax
mov edx, ecx
xor eax, eax
shr ecx, 2
mov dword [esi + 8], edi
add esp, 4
rep stosd dword es:[edi], eax
mov ecx, edx
push 0
and ecx, 3
rep stosb byte es:[edi], al
mov edi, dword [esp + 0x1c]
mov ecx, dword [esi + 8]
lea eax, [esp + 0x14]
mov dword [esi + 0xc], edi
mov dword [esi + 0x10], ebx
mov esi, dword [esp + 0x18]
push eax
push edi
push ecx
push esi
mov dword [esp + 0x24], 0
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
mov bl, 1
jne 0x4077e6
test ebp, ebp
je 0x4077e4
lea ecx, [esp + 0x1c]
call fcn.00402a10
lea ecx, [esp + 0x1c]
mov byte [esp + 0xf8], 2
call fcn.00403170
mov ebx, dword [ebp]
lea ecx, [esp + 0x1c]
call fcn.00419a90
push eax
mov ecx, ebp
call dword [ebx + 0x10]
mov eax, dword [esp + 0x100]
mov edx, dword [ebp]
push eax
push str.filename
mov ecx, ebp
call dword [edx + 0x28]
lea ecx, [esp + 0x94]
call fcn.00404670
lea ecx, [esp + 0x94]
mov byte [esp + 0xf8], 3
push ecx
call fcn.00405230
mov ebx, dword [ebp]
add esp, 4
lea ecx, [esp + 0x94]
call fcn.00404ce0
push eax
push str.current_dir
mov ecx, ebp
call dword [ebx + 0x28]
lea ecx, [esp + 0x94]
mov byte [esp + 0xf8], 2
call fcn.00404730
lea ecx, [esp + 0x1c]
mov byte [esp + 0xf8], 0
call fcn.00402a80
xor bl, bl
cmp dword [esp + 0x10], edi
je 0x4077ff
test ebp, ebp
je 0x4077fd
mov edx, dword [ebp]
push str.Failed_to_read_the_entire_file
mov ecx, ebp
call dword [edx + 0x10]
xor bl, bl
push 0
push esi
call fcn.00412e70
add esp, 8
lea ecx, [esp + 0x38]
mov dword [esp + 0xf8], 0xffffffff
call fcn.00404730
mov al, bl
mov ecx, dword [esp + 0xf0]
pop edi
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0xec
ret 8