Function at 0x4864a0
Capabilities:
Get file size
Read file on windows

Disassembly:
mov eax, dword [esp + 4]
sub esp, 8
test eax, eax
push ebx
push ebp
push esi
push edi
mov esi, ecx
jne 0x4864e0
mov eax, dword [esi + 0x60]
push eax
push str.TaskID___u_exception_raised_in_method_CFileMgr::LoadTorrentFile__parameter_pBuffer_can_not_be_NULL
push 0x4d1048
call fcn.00453a60
add esp, 0xc
mov eax, 0x7e2d
mov dword [esi + 0x50], eax
mov dword [esi + 0x54], 0x1d9
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 8
mov ecx, dword [esp + 0x20]
cmp dword [ecx], 0
jg 0x486518
mov edx, dword [esi + 0x60]
push edx
push str.TaskID___u_exception_raised_in_method_CFileMgr::LoadTorrentFile__parameter_nNumber_must_greater_than_zero
push 0x4d1048
call fcn.00453a60
add esp, 0xc
mov eax, 0x7e2e
mov dword [esi + 0x50], eax
mov dword [esi + 0x54], 0x1df
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 8
cmp dword [esi + 0x5c], 0xffffffff
jne 0x486580
mov eax, dword [esi + 0x2c]
test eax, eax
jne 0x48652a
mov eax, dword [sym.imp.MSVCP60.dll_unsigned_short_int_const__private:_static_unsigned_short_int_const____cdecl_std::basic_string_unsigned_short_int__struct_std::char_traits_unsigned_short_int___class_std::allocator_unsigned_short_int__::_Nullstr_void_::_2::_C]
push 0
push 0x80
push 4
push 0
push 5
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
mov dword [esi + 0x5c], eax
jne 0x486580
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
call edi
push eax
mov eax, dword [esi + 0x60]
push eax
push str.TaskID___u_exception_raised_in_method_CFileMgr::LoadMemFile__open_file_fail__error_code_is__d
push 0x4d1048
call fcn.00453a60
add esp, 0x10
call edi
mov dword [esi + 0x50], eax
mov dword [esi + 0x54], 0x1ea
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 8
mov edx, dword [esi + 0x5c]
lea ecx, [esp + 0x10]
push ecx
push edx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov ebp, dword [sym.imp.KERNEL32.dll_GetLastError]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x4865d1
call ebp
test eax, eax
je 0x4865d1
call ebp
push eax
mov eax, dword [esi + 0x60]
push eax
push str.TaskID___u_exception_raised_in_method_CFileMgr::GetSize__get_file_size_fail_call_GetFileSize___error_code_is__d
push 0x4d1048
call fcn.00453a60
add esp, 0x10
call ebp
mov dword [esi + 0x50], eax
mov dword [esi + 0x54], 0x1f3
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 8
mov ecx, dword [esp + 0x10]
push 1
push 0
push 0
push ecx
call fcn.004a1060
mov edi, eax
mov ecx, edx
xor edx, edx
add edi, ebx
adc ecx, edx
test ecx, ecx
jg 0x486639
jl 0x4865f5
test edi, edi
jae 0x486621
mov eax, dword [esi + 0x60]
push eax
push str.TaskID___u_exception_raised_in_method_CFileMgr::GetSize__file_size_is_too_huge
push 0x4d1048
call fcn.00453a60
add esp, 0xc
call ebp
mov dword [esi + 0x50], eax
mov dword [esi + 0x54], 0x1fb
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 8
test ecx, ecx
jg 0x486639
jl 0x48662c
cmp edi, 0xc
ja 0x486639
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
add esp, 8
ret 8
mov ebx, dword [esp + 0x20]
mov eax, dword [ebx]
cdq
cmp edx, ecx
jg 0x486657
jl 0x48664a
cmp eax, edi
jae 0x486657
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
add esp, 8
ret 8
lea ecx, [esp + 0x10]
mov dword [ebx], edi
mov edx, dword [esi + 0x5c]
push 0
push ecx
push 0
push edx
mov dword [esp + 0x20], 0
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov ecx, dword [ebx]
mov edx, dword [esp + 0x1c]
lea eax, [esp + 0x14]
push 0
push eax
mov eax, dword [esi + 0x5c]
push ecx
push edx
push eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x4866a5
mov eax, dword [esp + 0x14]
test eax, eax
jle 0x4866a5
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 8
ret 8
call ebp
mov ecx, dword [esi + 0x60]
push eax
push ecx
push str.TaskID___u_exception_raised_in_method_CFileMgr::Read__read_from_file_fail_call_ReadFile___error_code_is__d
push 0x4d1048
call fcn.00453a60
add esp, 0x10
call ebp
mov dword [esi + 0x50], eax
mov dword [esi + 0x54], 0x210
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 8