Function at 0x471b40
Capabilities:
Get disk size
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x15c
mov eax, dword [ebp + 0x20]
mov ecx, dword [ebp + 0x1c]
push ebx
push esi
push edi
push eax
push eax
call fcn.0046cb10
push ecx
mov eax, esp
mov byte [ebp - 0x14], 0
mov dword [ebp - 0x40], 0xffffffff
lea ecx, [ebp - 0x5c]
mov dword [ebp - 0x30], 0
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x18], 0
mov dword [eax], 0
push dword [ebp + 8]
call fcn.00470330
mov ebx, dword [ebp + 0x24]
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, dword [eax + 4]
mov eax, dword [ebp - 0x40]
mov dword [ebp - 0x10], 0
cmp eax, 0xffffffff
je 0x471bb5
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
jne 0x471bb5
call edi
mov eax, ebx
mov dword [ebp - 0x28], 0
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
mov dword [ebp - 0x38], 0
mov dword [ebp - 0x34], 0
and eax, 0xffffffb3
je 0x471c06
push eax
push str.unsupported_flags_0x_x_passed_to_CFileReader::BOpenFile
push 0x12c5
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
call fcn.00476ea0
add esp, 0x10
test al, al
jne 0x471c03
int3
and ebx, 0x4c
cmp byte [ebp - 0x14], 0
je 0x471d0b
push ecx
mov eax, esp
lea ecx, [ebp - 0x50]
xor edi, edi
push esi
mov dword [eax], edi
call fcn.00470330
push 0x3a
push dword [ebp - 0x4c]
call fcn.0056dbe0
add esp, 8
test eax, eax
je 0x471c89
mov ecx, dword [ebp - 0x4c]
mov edx, 0x100
sub eax, ecx
lea edi, [eax + 2]
mov eax, 0xff
cmp edi, eax
cmova edi, eax
cmp edi, edx
mov eax, edi
cmova eax, edx
push eax
push ecx
lea eax, [ebp - 0x15c]
push eax
call fcn.0046a580
add esp, 0xc
mov byte [ebp + edi - 0x15c], 0
lea eax, [ebp - 4]
push eax
lea eax, [ebp - 0x44]
push eax
lea eax, [ebp + 0x24]
push eax
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x15c]
push eax
call dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceA]
xor edi, edi
jmp 0x471ca1
lea eax, [ebp - 4]
push eax
lea eax, [ebp - 0x44]
push eax
lea eax, [ebp + 0x24]
push eax
lea eax, [ebp - 8]
push eax
push 0
call dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceA]
test eax, eax
mov dword [ebp - 0x50], vtable.CPathString.0
mov eax, dword [ebp - 0x48]
cmovne edi, dword [ebp + 0x24]
test eax, eax
je 0x471cc5
push eax
call fcn.0056b4c4
add esp, 4
mov dword [ebp - 0x48], 0
mov eax, dword [ebp - 0x4c]
test eax, eax
je 0x471cdc
push eax
call fcn.0056b4c4
add esp, 4
mov dword [ebp - 0x4c], 0
mov dword [ebp - 0x10], edi
test edi, edi
je 0x471ce8
or ebx, 2
jmp 0x471d05
push esi
push str.Failed_to_get_sector_size_for_drive_file__s_is_on__not_using_unbuffered_IO
push 0x12d4
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
call fcn.00476ea0
add esp, 0x10
test al, al
jne 0x471d05
int3
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
lea eax, [ebp - 0x40]
test bl, 0x40
push eax
push ebx
mov ecx, 0
mov eax, 3
push 0
cmovne eax, ecx
push eax
push 1
push esi
call fcn.004715e0
add esp, 0x18
test eax, eax
jne 0x471d3c
cmp dword [ebp - 0x40], 0xffffffff
je 0x471d3c
xor bl, bl
jmp 0x471d3e
mov bl, 1
mov eax, dword [ebp - 0x54]
mov dword [ebp - 0x5c], vtable.CPathString.0
test eax, eax
je 0x471d5c
push eax
call fcn.0056b4c4
add esp, 4
mov dword [ebp - 0x54], 0
mov eax, dword [ebp - 0x58]
test eax, eax
je 0x471d73
push eax
call fcn.0056b4c4
add esp, 4
mov dword [ebp - 0x58], 0
test bl, bl
jne 0x472233
lea eax, [ebp - 0x4c]
xor ebx, ebx
push eax
push dword [ebp - 0x40]
xor esi, esi
call dword [sym.imp.KERNEL32.dll_GetFileSizeEx]
test eax, eax
jne 0x471d9b
call edi
test eax, eax
je 0x471da1
mov dword [ebp - 0x48], ebx
jmp 0x471da4
mov ebx, dword [ebp - 0x4c]
mov esi, dword [ebp - 0x48]
mov dword [ebp - 0x48], esi
mov edi, dword [ebp + 0x10]
test edi, edi
ja 0x472233
mov esi, dword [ebp + 0xc]
jb 0x471dbc
cmp esi, ebx
ja 0x472233
mov eax, esi
or eax, edi
je 0x471e88
cmp dword [ebp - 0x40], 0xffffffff
jne 0x471ddb
push str.BIsOpen__
push 0x138e
jmp 0x472221
cmp byte [ebp - 0x14], 0
je 0x471e05
mov eax, dword [ebp - 0x10]
test eax, eax
je 0x471e05
push 0
push eax
push edi
push esi
call fcn.0056be50
or eax, edx
je 0x471e05
push str.Seeking_to_a_position_which_is_not_sector_aligned_will_break_unbuffered_io
push 0x1396
jmp 0x472221
cmp dword [ebp - 0x18], 0
je 0x471e45
mov edx, dword [ebp - 0x24]
cmp edi, edx
jb 0x471e37
mov eax, dword [ebp - 0x28]
ja 0x471e1b
cmp esi, eax
jb 0x471e37
mov ecx, dword [ebp - 0x20]
add ecx, eax
mov eax, dword [ebp - 0x1c]
adc eax, edx
cmp edi, eax
ja 0x471e37
jb 0x471e2f
cmp esi, ecx
jae 0x471e37
mov dword [ebp - 0x38], esi
mov dword [ebp - 0x34], edi
jmp 0x471e88
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
push 0
lea eax, [ebp + 0x24]
mov dword [ebp + 0x24], edi
push eax
push esi
push dword [ebp - 0x40]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov dword [ebp - 4], eax
cmp eax, 0xffffffff
jne 0x471e79
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
je 0x471e79
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
je 0x471e88
jmp 0x472233
mov eax, dword [ebp + 0x24]
xor ecx, ecx
or ecx, dword [ebp - 4]
cdq
mov dword [ebp - 0x38], ecx
mov dword [ebp - 0x34], eax
mov eax, dword [ebp + 0x18]
sub ebx, esi
mov ecx, 0
sbb ecx, edi
cmp eax, ecx
ja 0x471ea1
mov esi, dword [ebp + 0x14]
jb 0x471ea5
cmp esi, ebx
jb 0x471ea5
mov esi, ebx
mov eax, ecx
test eax, eax
ja 0x472233
jb 0x472217
cmp esi, 0x7ffffffe
ja 0x472233
test eax, eax
jne 0x472217
cmp esi, 0x40000000
ja 0x472217
mov edi, dword [ebp + 0x1c]
mov ecx, edi
call fcn.0046db90
mov eax, dword [ebp + 0x20]
mov ecx, edi
movzx ebx, al
xor ebx, 1
add ebx, esi
push ebx
mov dword [ebp - 0x48], ebx
call fcn.0046bd30
test ebx, ebx
je 0x472213
push ebx
mov ecx, edi
call fcn.0046bb90
test al, al
je 0x472233
mov eax, dword [ebp + 0x1c]
mov edi, dword [edi + 0x14]
add edi, dword [eax + 4]
mov dword [ebp - 8], edi
je 0x472233
cmp dword [ebp - 0x40], 0xffffffff
mov ebx, edi
jne 0x471f34
push str.BIsOpen__
push 0x130c
jmp 0x472221
mov ecx, closesocket
sub ecx, dword [ebp - 0x30]
mov dword [ebp - 4], ecx
cmp esi, ecx
jbe 0x471f8f
xor edi, edi
test esi, esi
je 0x4721da
lea ecx, [ecx]
lea eax, [ebp + 0x24]
mov dword [ebp + 0x24], 0
push eax
cmp ecx, esi
mov eax, esi
cmovb eax, ecx
lea ecx, [ebp - 0x40]
push eax
push ebx
call fcn.00472380
test al, al
je 0x472233
mov eax, dword [ebp + 0x24]
test eax, eax
je 0x4721da
mov ecx, dword [ebp - 4]
add edi, eax
add ebx, eax
sub esi, eax
jne 0x471f50
jmp 0x4721da
cmp esi, 0x7fffffff
jb 0x471fb3
push str.cubBytesToRead___INT32_MAX
push 0x132c
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
call fcn.00476e80
add esp, 0xc
test al, al
jne 0x471fb3
int3
cmp byte [ebp - 0x14], 0
je 0x47203f
xor edx, edx
mov eax, esi
div dword [ebp - 0x10]
test edx, edx
je 0x471fd7
push str.CFileReader::Read_must_be_called_with_a_cubData_value_that_is_a_multiple_of_the_sector_size_when_using_unbuffered_IO
push 0x1333
jmp 0x472221
cmp byte [0x653fb5], 0
jne 0x47200b
test edi, 0xfff
je 0x47200b
push str.Unbuffered_read_should_be_called_with_pvData_buffer_that_is_aligned_to_system_page_size__4kb_
push 0x1338
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
mov byte [0x653fb5], 1
call fcn.00476e80
add esp, 0xc
test al, al
jne 0x47200b
int3
cmp byte [0x653fb6], 0
jne 0x47203f
test esi, 0xfff
je 0x47203f
push str.Unbuffered_read_should_be_called_with_cubData_length_that_is_aligned_to_system_page_size__4kb_
push 0x1339
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
mov byte [0x653fb6], 1
call fcn.00476e80
add esp, 0xc
test al, al
jne 0x47203f
int3
mov eax, dword [ebp - 0x18]
mov edx, esi
mov ebx, dword [ebp - 0x34]
xor edi, edi
mov ecx, dword [ebp - 0x38]
mov dword [ebp - 0x44], edx
test eax, eax
je 0x4720d7
cmp ebx, dword [ebp - 0x24]
jb 0x4720d7
mov eax, dword [ebp - 0x28]
ja 0x472065
cmp ecx, eax
jb 0x4720d4
mov edx, dword [ebp - 0x20]
mov dword [ebp + 0x24], edx
mov edx, esi
add dword [ebp + 0x24], eax
mov eax, dword [ebp - 0x1c]
adc eax, dword [ebp - 0x24]
cmp ebx, eax
ja 0x4720d4
jb 0x472081
cmp ecx, dword [ebp + 0x24]
jae 0x4720d4
mov edx, dword [ebp - 0x20]
mov edi, dword [ebp - 0x1c]
sub edx, ecx
mov eax, dword [ebp - 0x28]
sbb edi, ebx
add edx, eax
adc edi, dword [ebp - 0x24]
xor ebx, ebx
cmp ebx, edi
ja 0x4720a3
jb 0x47209f
cmp esi, edx
jae 0x4720a3
mov edi, esi
jmp 0x4720aa
mov edi, dword [ebp - 0x20]
sub edi, ecx
add edi, eax
sub ecx, eax
add ecx, dword [ebp - 0x18]
push edi
push ecx
push dword [ebp - 8]
call fcn.0056d100
mov ecx, dword [ebp - 0x38]
add esp, 0xc
mov ebx, dword [ebp - 0x34]
add ecx, edi
mov edx, esi
mov dword [ebp - 0x38], ecx
adc ebx, 0
sub edx, edi
mov dword [ebp - 0x34], ebx
mov dword [ebp - 0x44], edx
mov eax, dword [ebp - 0x18]
test edx, edx
jne 0x4720e2
mov edi, esi
jmp 0x4721da
mov dword [ebp + 0x24], edx
test eax, eax
je 0x4720fb
cmp dword [ebp - 0x2c], 0
jb 0x4720fb
ja 0x4720f6
cmp dword [ebp - 0x30], edx
jbe 0x4720fb
mov edx, dword [ebp - 0x30]
jmp 0x4720fe
mov edx, dword [ebp + 0x24]
mov eax, dword [ebp - 0x30]
or eax, dword [ebp - 0x2c]
je 0x472171
xor eax, eax
cmp edx, dword [ebp - 0x30]
jne 0x472171
cmp eax, dword [ebp - 0x2c]
jne 0x472171
push eax
mov dword [ebp - 4], eax
lea eax, [ebp - 4]
push eax
push edx
push dword [ebp - 0x18]
mov dword [ebp - 0x28], ecx
push dword [ebp - 0x40]
mov dword [ebp - 0x24], ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x472145
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
sete byte [ebp + 0x27]
xor ebx, ebx
test eax, eax
jne 0x4721b5
jmp 0x47214c
mov ebx, dword [ebp - 4]
mov byte [ebp + 0x27], 1
mov eax, ebx
cdq
mov dword [ebp - 0x20], eax
mov eax, dword [ebp - 0x44]
cmp ebx, eax
mov dword [ebp - 0x1c], edx
cmovb eax, ebx
push eax
push dword [ebp - 0x18]
mov eax, dword [ebp - 8]
add eax, edi
push eax
call fcn.0056d100
add esp, 0xc
jmp 0x4721b5
push 0
lea eax, [ebp + 0x24]
mov dword [ebp + 0x24], 0
push eax
mov eax, dword [ebp - 8]
push edx
add eax, edi
push eax
push dword [ebp - 0x40]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x47219c
call dword [sym.imp.KERNEL32.dll_GetLastError]
xor ebx, ebx
jmp 0x4721a1
mov ebx, dword [ebp + 0x24]
xor eax, eax
test eax, eax
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
sete byte [ebp + 0x27]
xor ecx, ecx
cmp byte [ebp + 0x27], cl
cmovne ecx, ebx
cmp dword [ebp - 0x44], ecx
mov eax, ecx
cmovb eax, dword [ebp - 0x44]
add dword [ebp - 0x38], eax
adc dword [ebp - 0x34], 0
add edi, ecx
cmp esi, edi
cmovb edi, esi
cmp byte [ebp + 0x27], 0
je 0x472233
cmp byte [ebp + 0x20], 0
jne 0x472208
cmp edi, dword [ebp - 0x48]
jb 0x472201
push str.cbActual____uint32_nBufSizeWithTerminator
push 0x8b6
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
call fcn.00476e80
add esp, 0xc
test al, al
jne 0x472201
int3
mov eax, dword [ebp - 8]
mov byte [eax + edi], 0
mov ecx, dword [ebp + 0x1c]
push edi
push 0
call fcn.0046ca20
mov bl, 1
jmp 0x472235
push str.cbToRead___1024__1024__1024
push 0x896
push str.c:_buildslave_steam_rel_client_win32_build_src_tier1_fileio.cpp
call fcn.00476e80
add esp, 0xc
test al, al
jne 0x472233
int3
xor bl, bl
mov eax, dword [ebp - 0x40]
mov dword [ebp - 0x10], 0
cmp eax, 0xffffffff
je 0x47225c
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
jne 0x472255
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [ebp - 0x40], 0xffffffff
mov eax, dword [ebp - 0x18]
mov dword [ebp - 0x38], 0
mov dword [ebp - 0x34], 0
mov dword [ebp - 0x28], 0
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
test eax, eax
je 0x472296
push eax
call fcn.0056b4c4
add esp, 4
pop edi
pop esi
mov al, bl
pop ebx
mov esp, ebp
pop ebp
ret