Function at 0x405917
Capabilities:
Get common file path
Get disk information
Get disk size
Set current directory

Disassembly:
mov edi, edi
push ebp
mov ebp, esp
sub esp, 0x330
mov eax, dword [0x408004]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
push esi
lea eax, [ebp - 0x110]
mov dword [ebp - 0x320], edx
push eax
push 0x104
mov esi, ecx
call dword [sym.imp.KERNEL32.dll_GetCurrentDirectoryA]
push esi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
xor ebx, ebx
test eax, eax
jne 0x405977
push ebx
push 0x10
push ebx
push ebx
mov edx, 0x4bc
xor ecx, ecx
call fcn.00404469
call fcn.0040621a
mov dword [0x409124], eax
xor eax, eax
jmp 0x405b9f
push edi
lea eax, [ebp - 0x324]
mov dword [ebp - 0x318], ebx
push eax
lea eax, [ebp - 0x31c]
mov dword [ebp - 0x314], ebx
push eax
lea eax, [ebp - 0x314]
mov dword [ebp - 0x31c], ebx
push eax
lea eax, [ebp - 0x318]
mov dword [ebp - 0x324], ebx
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceA]
test eax, eax
je 0x405b3b
mov eax, dword [ebp - 0x314]
imul eax, dword [ebp - 0x318]
push 0x400
push dword [ebp - 0x31c]
push eax
mov dword [ebp - 0x328], eax
call dword [sym.imp.KERNEL32.dll_MulDiv]
mov edi, eax
test edi, edi
je 0x405b3b
push ebx
push ebx
lea eax, [ebp - 0x32c]
push eax
lea eax, [ebp - 0x330]
push eax
push ebx
push ebx
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_GetVolumeInformationA]
test eax, eax
jne 0x405a4f
mov edi, 0x200
lea eax, [ebp - 0x310]
push edi
push ebx
push eax
call sub.msvcrt.dll_memset
add esp, 0xc
call fcn.0040621a
push ebx
mov dword [0x409124], eax
lea eax, [ebp - 0x310]
push edi
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push ebx
push 0x1000
call dword [sym.imp.KERNEL32.dll_FormatMessageA]
mov edx, 0x4f9
jmp 0x405b7d
lea eax, [ebp - 0x110]
push eax
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
lea ecx, [ebp - 0xc]
push 6
mov eax, ecx
pop edx
sub esi, eax
lea eax, [edx - 4]
test eax, eax
je 0x405a7c
mov al, byte [esi + ecx]
test al, al
je 0x405a7c
mov byte [ecx], al
inc ecx
sub edx, 1
jne 0x405a66
test edx, edx
jne 0x405a81
dec ecx
push 8
mov byte [ecx], bl
mov edx, 0x200
mov ecx, dword [ebp - 0x328]
mov eax, ebx
pop esi
cmp ecx, edx
je 0x405a9f
add edx, edx
inc eax
cmp ax, si
jb 0x405a93
cmp ax, si
jne 0x405aba
push ebx
push 0x10
push ebx
push ebx
mov edx, 0x4c5
xor ecx, ecx
call fcn.00404469
jmp 0x405b9c
test byte [0x409a34], 8
je 0x405aec
test dword [ebp - 0x32c], 0x8000
je 0x405aec
mov ecx, dword [0x409a38]
movzx eax, ax
shr ecx, 2
mov edx, dword [eax*4 + 0x4089e0]
add edx, edx
add ecx, dword [0x409a38]
jmp 0x405afc
mov ecx, dword [0x409a38]
movzx eax, ax
mov edx, dword [eax*4 + 0x4089e0]
mov eax, dword [ebp - 0x320]
and eax, 3
cmp al, 3
jne 0x405b10
lea eax, [ecx + edx]
cmp eax, edi
jmp 0x405b1f
test byte [ebp - 0x320], 1
je 0x405b1d
cmp edx, edi
jmp 0x405b1f
cmp ecx, edi
jbe 0x405b30
lea eax, [ebp - 0xc]
push eax
push ecx
mov ecx, dword [ebp + 8]
call fcn.0040265c
jmp 0x405b9e
xor eax, eax
mov dword [0x409124], ebx
inc eax
jmp 0x405b9e
mov edi, 0x200
lea eax, [ebp - 0x310]
push edi
push ebx
push eax
call sub.msvcrt.dll_memset
add esp, 0xc
call fcn.0040621a
push ebx
mov dword [0x409124], eax
lea eax, [ebp - 0x310]
push edi
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push ebx
push 0x1000
call dword [sym.imp.KERNEL32.dll_FormatMessageA]
mov edx, 0x4b0
push ebx
push 0x10
lea eax, [ebp - 0x310]
xor ecx, ecx
push eax
push esi
call fcn.00404469
lea eax, [ebp - 0x110]
push eax
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
xor eax, eax
pop edi
mov ecx, dword [ebp - 4]
pop esi
xor ecx, ebp
pop ebx
call fcn.00406ca0
mov esp, ebp
pop ebp
ret 4