Function at 0x40e83f
Capabilities:
Check if file exists
Unmount volume via ioctl

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x1c
push ebx
push esi
push edi
mov edi, dword [ebp + 0xc]
test edi, edi
jne 0x40e898
push 0xc0000000
push dword [ebp + 8]
call dword [0x496e84]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x40e9ae
push 0x80000000
push dword [ebp + 8]
call dword [0x496e84]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x40e9ae
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 2
jne 0x40e99c
xor eax, eax
inc eax
jmp 0x40ea1a
mov esi, dword [sym.imp.KERNEL32.dll_lstrlenW]
push edi
call esi
cmp eax, 2
jne 0x40e8b2
xor eax, eax
cmp word [edi + 2], 0x3a
sete al
jmp 0x40e8d3
push edi
call esi
cmp eax, 3
jne 0x40e8d1
lea eax, [edi + 2]
push 0x482740
push eax
call fcn.0046d18c
neg eax
pop ecx
sbb eax, eax
pop ecx
inc eax
jmp 0x40e8d3
xor eax, eax
test eax, eax
je 0x40e936
mov eax, dword [ebp + 0xc]
mov ax, word [eax]
mov esi, str.._:
lea edi, [ebp - 0x1c]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
push 0
movsw word es:[edi], word [esi]
mov esi, dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edi, 0x20000000
push edi
push 3
push 0
push 3
mov word [ebp - 0x14], ax
push 0xc0000000
lea eax, [ebp - 0x1c]
push eax
call esi
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x40e9ab
push 0
push edi
push 3
push 0
push 3
push 0x80000000
lea eax, [ebp - 0x1c]
push eax
call esi
mov edi, dword [ebp + 0xc]
mov ebx, eax
jmp 0x40e878
push 0xc0000000
push edi
call dword [0x496e88]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x40e9ae
push 0x80000000
push edi
call dword [0x496e88]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x40e9ae
call dword [sym.imp.KERNEL32.dll_GetLastError]
dec eax
je 0x40e997
sub eax, 0x56
je 0x40e997
sub eax, 0x3a
je 0x40e984
sub eax, 0x7a
je 0x40e984
sub eax, 0x101b
je 0x40e984
push edi
call fcn.0040d65b
pop ecx
jmp 0x40e997
push edi
push str.Not_a_mount_point:__1_ws__n
push 0x495830
call fcn.0040d5ff
add esp, 0xc
push 9
pop eax
jmp 0x40ea1a
push str.Error_opening_device:
call fcn.0040d65b
pop ecx
push 2
jmp 0x40e999
mov edi, dword [ebp + 0xc]
push ebx
call fcn.0040d6ac
test eax, eax
pop ecx
jne 0x40e9bd
push 5
jmp 0x40ea10
test byte [ebp + 0x10], 3
mov esi, dword [sym.imp.KERNEL32.dll_DeviceIoControl]
je 0x40ea1f
push ebx
call dword [sym.imp.KERNEL32.dll_FlushFileBuffers]
xor eax, eax
push eax
lea ecx, [ebp - 4]
push ecx
push eax
push eax
push eax
push eax
push 0x90018
push ebx
call esi
test eax, eax
je 0x40e9fe
xor eax, eax
push eax
lea ecx, [ebp - 4]
push ecx
push eax
push eax
push eax
push eax
push 0x90020
push ebx
call esi
test eax, eax
jne 0x40ea1f
test edi, edi
jne 0x40ea07
mov edi, str.Error
push edi
call fcn.0040d65b
pop ecx
push 2
pop esi
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov eax, esi
pop edi
pop esi
pop ebx
leave
ret
mov eax, dword [ebp + 0x10]
mov dword [ebp - 0xc], eax
mov eax, dword [ebp + 0x14]
push 0
mov dword [ebp - 8], eax
lea eax, [ebp - 4]
push eax
push 8
lea eax, [ebp - 0xc]
push eax
push 8
push eax
push 0x83722014
push ebx
call esi
test eax, eax
jne 0x40ea4d
push edi
call fcn.0040d65b
pop ecx
xor esi, esi
cmp dword [ebp - 0xc], esi
je 0x40ea11
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push edi
push str._1_ws_:_Not_all_new_options_were_successfully_changed.
push 0x495830
call fcn.0040d5ff
add esp, 0xc
push 3
jmp 0x40e999