Function at 0x45fcc4
Capabilities:
Get file size
Read file on windows

Disassembly:
push 0x73c
mov eax, 0x5003e1
call fcn.004d998f
mov esi, dword [ebp + 8]
lea ecx, [ebp - 0x508]
call fcn.0043d0c9
xor ebx, ebx
push ebx
push ebx
push esi
lea ecx, [ebp - 0x508]
mov dword [ebp - 4], ebx
call fcn.0043d139
lea eax, [ebp - 0x400]
push eax
lea ecx, [ebp - 0x19c]
call fcn.0043a8df
mov byte [ebp - 4], 1
mov dword [ebp - 0x73c], ebx
xor esi, esi
call fcn.0043b257
push eax
lea ecx, [ebp - 0x94]
call fcn.0043a8df
mov byte [ebp - 4], 2
call fcn.0043b25d
mov ecx, eax
call fcn.0043a5cb
test al, al
je 0x45fde3
lea eax, [ebp - 0x19c]
push eax
lea ecx, [ebp - 0x94]
call fcn.0043a647
push ebx
push 0x80
push 3
push ebx
push 1
push SysReAllocString
lea ecx, [ebp - 0x94]
call fcn.0043a4b7
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edi, eax
cmp edi, 0xffffffff
jne 0x45fd8a
lea ecx, [ebp - 0x94]
mov byte [ebp - 4], 1
call fcn.0043a49d
jmp 0x45ff6d
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov esi, eax
cmp esi, ebx
je 0x45fd76
push esi
mov dword [ebp - 0x744], ebx
call fcn.004d4432
pop ecx
push ebx
lea ecx, [ebp - 0x744]
push ecx
push esi
push eax
push edi
mov dword [ebp - 0x73c], eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp dword [ebp - 0x744], esi
je 0x45ff56
push dword [ebp - 0x73c]
call fcn.004d6376
pop ecx
mov dword [ebp - 0x73c], ebx
jmp 0x45fd76
call fcn.0043b25d
push eax
lea ecx, [ebp - 0x94]
call fcn.0043a647
call fcn.0043b269
test al, al
je 0x45fe06
call fcn.0043b26f
mov edi, eax
jmp 0x45fe6b
call fcn.0043b263
push eax
lea ecx, [ebp - 0x220]
call fcn.0043a8df
push ebx
lea ecx, [ebp - 0x220]
mov byte [ebp - 4], 3
call fcn.0043a4b7
push eax
call fcn.0046b545
pop ecx
pop ecx
mov edi, eax
push edi
lea ecx, [ebp - 0x94]
call fcn.0043a4b7
push eax
call fcn.00466b8a
pop ecx
pop ecx
mov dword [ebp - 0x740], eax
cmp edi, ebx
je 0x45fe56
push edi
call fcn.004d6376
pop ecx
lea ecx, [ebp - 0x220]
mov byte [ebp - 4], 2
call fcn.0043a49d
mov edi, dword [ebp - 0x740]
cmp edi, ebx
je 0x45fd76
lea eax, [ebp - 0x19c]
push eax
lea ecx, [ebp - 0x118]
mov dword [ebp - 0x748], ebx
call fcn.0043a8df
push 0x50ab28
push 0x50ab24
lea ecx, [ebp - 0x118]
mov byte [ebp - 4], 4
call fcn.0043aa3f
lea eax, [ebp - 0x738]
push eax
lea eax, [ebp - 0x748]
push eax
push 1
lea ecx, [ebp - 0x118]
call fcn.0043a4b7
push eax
push edi
call fcn.00465104
add esp, 0x14
test eax, eax
je 0x45fee1
lea ecx, [ebp - 0x118]
mov byte [ebp - 4], 2
call fcn.0043a49d
jmp 0x45fd76
mov esi, dword [ebp - 0x50c]
cmp esi, ebx
je 0x45fecd
push esi
call fcn.004d4432
push esi
push eax
push dword [ebp - 0x748]
mov dword [ebp - 0x73c], eax
push edi
call fcn.00466bf1
add esp, 0x14
cmp eax, ebx
je 0x45ff37
cmp eax, 0x600
je 0x45ff37
push dword [ebp - 0x73c]
call fcn.004d6376
pop ecx
mov dword [ebp - 0x73c], ebx
call fcn.0043b269
test al, al
jne 0x45fecd
push edi
call fcn.00466c0c
pop ecx
jmp 0x45fecd
call fcn.0043b269
test al, al
jne 0x45ff47
push edi
call fcn.00466c0c
pop ecx
lea ecx, [ebp - 0x118]
mov byte [ebp - 4], 2
call fcn.0043a49d
lea ecx, [ebp - 0x94]
mov byte [ebp - 4], 1
call fcn.0043a49d
cmp dword [ebp - 0x73c], ebx
jne 0x45ffe9
push ebx
push 0x80
push 3
push ebx
push 1
push SysReAllocString
lea ecx, [ebp - 0x19c]
call fcn.0043a4b7
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edi, eax
cmp edi, 0xffffffff
je 0x45ffe9
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov esi, eax
cmp esi, ebx
je 0x45ffe9
push esi
mov dword [ebp - 0x740], ebx
call fcn.004d4432
pop ecx
push ebx
lea ecx, [ebp - 0x740]
push ecx
push esi
push eax
push edi
mov dword [ebp - 0x73c], eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp dword [ebp - 0x740], esi
je 0x45ffe9
push dword [ebp - 0x73c]
call fcn.004d6376
pop ecx
mov dword [ebp - 0x73c], ebx
xor edi, edi
cmp dword [ebp - 0x73c], ebx
je 0x46000f
push esi
push dword [ebp - 0x73c]
call fcn.0045ea2c
push dword [ebp - 0x73c]
mov edi, eax
call fcn.004d6376
add esp, 0xc
lea ecx, [ebp - 0x19c]
mov byte [ebp - 4], bl
call fcn.0043a49d
or dword [ebp - 4], 0xffffffff
lea ecx, [ebp - 0x508]
call fcn.0043b0c0
mov eax, edi
call fcn.004d9a12
ret