Function at 0x4db4f0
Capabilities:
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x64
mov eax, dword [ebp + 8]
mov edx, eax
mov dword [ebp - 0x14], ecx
cmp dword [eax + 0x14], 0x10
jb 0x4db506
mov edx, dword [eax]
push edx
call fcn.004614e0
add esp, 4
mov dword [ebp - 0xc], eax
test eax, eax
jne 0x4db521
mov eax, 9
mov esp, ebp
pop ebp
ret 0xc
push ebx
mov ebx, dword [ebp + 0x10]
xorps xmm0, xmm0
push esi
push edi
xor edi, edi
mov dword [ebp - 0x64], 0
mov dword [ebp - 0x60], 0
movlpd qword [ebp - 0x28], xmm0
movlpd qword [ebp - 0x1c], xmm0
mov dword [ebp - 0x20], 0
mov dword [ebp - 4], edi
mov dword [ebp - 8], edi
mov dword [ebp - 0x10], edi
movups xmmword [ebp - 0x5c], xmm0
movups xmmword [ebp - 0x4c], xmm0
test ebx, ebx
jne 0x4db61c
push ebx
push 0x80
push 3
push ebx
push 7
push SysReAllocString
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x4db5a4
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
call edi
push eax
push str.Failed_to_open_file_in_read_mode__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db880
mov esi, dword [sym.imp.KERNEL32.dll_GetFileSize]
push 0
push ebx
call esi
mov edi, eax
cmp edi, 0xffffffff
jne 0x4db5d6
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_get_the_file_size_mode__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db828
test edi, edi
je 0x4db770
lea eax, [ebp - 0x28]
push eax
push 0
push edi
push 0
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_LockFileEx]
mov dword [ebp - 4], eax
cmp eax, 1
je 0x4db789
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_LockFileEx_in_shared_mode:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db828
lea eax, [ebp - 0x64]
push eax
call fcn.004db390
mov esi, eax
add esp, 4
test esi, esi
je 0x4db642
push str.Failed_to_initialize_SLC_SD_ATTR.
push 4
call fcn.004cec00
add esp, 8
jmp 0x4db8ad
push 0
push str.__slc_features__
push ebx
call fcn.004ba710
add esp, 8
mov edx, 0x80
test al, al
mov ecx, 2
lea eax, [ebp - 0x48]
cmovne ecx, edx
push ecx
push 4
push eax
push 7
push 0xc2000000
push dword [ebp - 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x4db69f
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_open_file_in_write_mode__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db82c
push 0
push dword [ebp - 0x64]
push 0
push 0
push 4
push 1
push ebx
call dword [sym.imp.ADVAPI32.dll_SetSecurityInfo]
test eax, eax
je 0x4db6e3
mov esi, dword [ebp + 8]
cmp dword [esi + 0x14], 0x10
jb 0x4db6c2
mov esi, dword [esi]
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push esi
push str.Couldnt_reset_perms_on___s___error_code:_d.
push 4
call fcn.004cec00
add esp, 0x10
mov esi, 0x303
jmp 0x4db828
mov esi, dword [sym.imp.KERNEL32.dll_GetFileSize]
push 0
push ebx
call esi
mov edi, eax
cmp edi, 0xffffffff
jne 0x4db71d
mov eax, dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
call eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_get_the_file_handle_in_write_mode__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db828
test edi, edi
je 0x4db763
lea eax, [ebp - 0x28]
push eax
push 0
push edi
push 0
push 2
push ebx
call dword [sym.imp.KERNEL32.dll_LockFileEx]
mov dword [ebp - 4], eax
cmp eax, 1
je 0x4db763
mov eax, dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
call eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_get_the_file_size_in_write_mode__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db828
mov eax, dword [ebp + 0x10]
mov dword [eax + 0x30], ebx
mov dword [eax + 0x34], edi
test edi, edi
jne 0x4db789
push str.Got_empty_string_from_the_file__treating_as_file_doesnot_exist.
push 4
call fcn.004cec00
add esp, 8
mov esi, 0x301
jmp 0x4db828
push 0
push ebx
call esi
mov edi, eax
cmp edi, 0xffffffff
jne 0x4db7b2
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_get_the_file_size_before_reading__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db828
lea eax, [edi + 1]
push eax
call fcn.005873b1
mov esi, eax
add esp, 4
mov dword [ebp - 8], esi
test esi, esi
jne 0x4db7e4
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_to_allocate_memory_while_reading_the_document_content_from_file__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 7
jmp 0x4db828
push 0
lea eax, [ebp - 0x10]
push eax
push edi
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp eax, 1
je 0x4db815
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
push str.Failed_read_the_file_data__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov esi, 0x302
jmp 0x4db828
push dword [ebp + 0xc]
mov ecx, dword [ebp - 0x14]
push edi
push esi
mov byte [esi + edi], 0
call fcn.004d9f10
mov esi, eax
test ebx, ebx
je 0x4db89d
cmp dword [ebp + 0x10], 0
jne 0x4db89d
cmp dword [ebp - 4], 0
je 0x4db87a
lea eax, [ebp - 0x3c]
mov dword [ebp - 0x34], 0
push eax
push 0
push edi
xorps xmm0, xmm0
push 0
push ebx
movlpd qword [ebp - 0x3c], xmm0
movlpd qword [ebp - 0x30], xmm0
call dword [sym.imp.KERNEL32.dll_UnlockFileEx]
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x4db880
call edi
push eax
push str.Failed_to_UnlockFileEx__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
jmp 0x4db880
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
jne 0x4db89d
call edi
push eax
push str.Failed_to_CloseHandle__error_code:_d.
push 4
call fcn.004cec00
add esp, 0xc
mov eax, dword [ebp - 8]
test eax, eax
je 0x4db8ad
push eax
call fcn.00587396
add esp, 4
push dword [ebp - 0xc]
call fcn.00587396
mov eax, dword [ebp - 0x64]
add esp, 4
test eax, eax
je 0x4db8cd
push eax
call dword [sym.imp.KERNEL32.dll_LocalFree]
mov dword [ebp - 0x64], 0
mov eax, dword [ebp - 0x60]
test eax, eax
je 0x4db8db
push eax
call dword [sym.imp.ADVAPI32.dll_FreeSid]
pop edi
mov eax, esi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0xc