Function at 0x459d20
Capabilities:
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
sub esp, 0x2c
push ebx
mov ebx, dword [0x5092c8]
push esi
push edi
push 1
push 0
push 0xffffffffffffffff
mov dword [esp + 0x1c], ecx
mov ecx, ebx
push 0
mov dword [esp + 0x34], ebx
call fcn.0049fde0
mov edi, dword [ebp + 8]
or eax, 0xffffffff
mov dword [esp + 0x14], eax
or edx, 0xffffffff
mov eax, dword [0x50499c]
mov byte [esp + 0xe], 0
mov byte [esp + 0x18], 0
mov dword [esp + 0x20], edx
mov ebx, dword [eax + 0xfc]
and ebx, 0x7fffffff
mov dword [esp + 0x2c], ebx
nop dword [eax]
mov esi, edi
movzx eax, word [esi]
cmp eax, 0x20
je 0x459d8f
cmp eax, 9
jne 0x459d94
add esi, 2
jmp 0x459d82
cmp eax, 0x2a
jne 0x459e7e
movzx ebx, word [esi + 2]
lea edi, [esi + 2]
test ebx, 0xffffff80
je 0x459db0
xor ecx, ecx
jmp 0x459dbd
push 2
push ebx
call fcn.004be8e0
add esp, 8
mov ecx, eax
mov eax, ebx
and eax, 0xffffffdf
test ecx, ecx
cmove eax, ebx
add eax, 0xffffffbd
cmp eax, 0x11
ja case.0x459dd6.68
movzx eax, byte [eax + 0x45a2d8]
jmp dword [eax*4 + 0x45a2c4]
mov byte [esp + 0x18], 1
jmp case.0x459dd6.68
add esi, 4
mov ecx, esi
call fcn.00404cf0
test al, al
mov edx, 0xa
mov eax, 0x10
cmovne edx, eax
push edx
push 0
push esi
call fcn.004bb61c
add esp, 0xc
mov dword [esp + 0x14], eax
mov dword [esp + 0x20], edx
mov edx, 0x4f0cac
mov ecx, edi
call fcn.004064f0
mov edi, eax
test edi, edi
je 0x459e5e
sub edi, 2
jmp case.0x459dd6.68
lea eax, [esi + 4]
push eax
call fcn.004bb722
add esp, 4
mov dword [esp + 0x2c], eax
jmp 0x459e11
mov byte [esp + 0xe], 1
cmp word [edi], 0
je 0x459d80
add edi, 2
cmp word [edi], 0
je 0x459d80
add edi, 2
jmp 0x459d80
mov eax, dword [0x50499c]
mov ecx, dword [esp + 0x10]
push 1
mov dword [eax + 0x30], 0x57
call fcn.00447370
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
push 0
push 0x8000000
push 3
push 0
push 3
push connect
push edi
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
mov dword [esp + 0x28], ebx
cmp ebx, 0xffffffff
jne 0x459ec5
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov ecx, dword [0x50499c]
push 1
mov dword [ecx + 0x30], eax
mov ecx, dword [esp + 0x14]
call fcn.00447370
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
lea eax, [esp + 0x34]
xorps xmm0, xmm0
push eax
push ebx
movq qword [esp + 0x38], xmm0
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
mov dword [esp + 0x30], esi
cmp esi, 0xffffffff
jne 0x459ef5
call edi
test eax, eax
jne 0x459f02
mov esi, dword [esp + 0x30]
mov ecx, dword [esp + 0x34]
mov eax, esi
and eax, ecx
cmp eax, 0xffffffff
jne 0x459f5f
call edi
mov ecx, dword [0x50499c]
push ebx
mov dword [ecx + 0x30], eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov eax, dword [0x50499c]
test byte [eax + 0x100], 1
jne 0x459f41
mov ecx, dword [0x507a8c]
push 1
push 0
push 0xffffffffffffffff
push 0x4f07d4
call fcn.0049fde0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
mov ecx, dword [esp + 0x10]
push 0x4da3cc
push 0
push 0x4f07d4
call fcn.004472d0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
mov edx, dword [esp + 0x20]
cmp ecx, edx
jb 0x459f75
mov eax, dword [esp + 0x14]
ja 0x459f71
cmp esi, eax
jbe 0x459f75
mov esi, eax
mov ecx, edx
test ecx, ecx
jne 0x45a2a5
cmp esi, 0xfffffffd
ja 0x45a2a5
mov eax, esi
or eax, ecx
jne 0x459fb3
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov eax, dword [0x50499c]
mov ecx, dword [esp + 0x10]
push 0
mov dword [eax + 0x30], 0
call fcn.00447370
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
cmp byte [esp + 0x18], 0
mov ebx, dword [esp + 0x24]
je 0x45a083
mov al, byte [ebx + 0x17]
test al, al
jne 0x459fcf
mov eax, dword [ebx + 0xc]
mov al, byte [eax + 0x17]
cmp al, 2
je 0x45a083
push 0
mov ecx, esi
mov byte [esp + 0x13], 1
shr ecx, 1
mov eax, esi
and eax, 1
push 1
add ecx, eax
push ecx
push 0
mov ecx, ebx
call fcn.0049fde0
cmp eax, 1
jne 0x45a0b2
push 0
push eax
mov ecx, ebx
call fcn.00401640
mov edi, eax
test edi, edi
je 0x45a0b2
push 0
lea eax, [esp + 0x20]
push eax
push esi
mov esi, dword [esp + 0x34]
push edi
push esi
call dword [sym.imp.KERNEL32.dll_ReadFile]
mov dword [esp + 0x14], eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov ecx, dword [0x50499c]
push esi
mov dword [ecx + 0x30], eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov esi, dword [esp + 0x14]
test esi, esi
je 0x45a252
cmp byte [esp + 0x18], 0
jne 0x45a1da
mov ecx, dword [esp + 0x1c]
cmp ecx, 3
jb 0x45a0c8
cmp byte [edi], 0xef
jne 0x45a0c8
cmp byte [edi + 1], 0xbb
jne 0x45a0c8
cmp byte [edi + 2], 0xbf
jne 0x45a0c8
lea eax, [ecx - 3]
push 0xfde9
push eax
lea eax, [edi + 3]
push eax
jmp 0x45a13f
lea eax, [esi + 2]
mov byte [esp + 0xf], 0
push eax
call fcn.004bb7a0
mov edi, eax
add esp, 4
test edi, edi
jne 0x45a012
mov ecx, dword [esp + 0x10]
push 0x4da3cc
push eax
push 0x4ee268
call fcn.00447570
mov esi, dword [esp + 0x28]
push esi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
cmp ecx, 2
jb 0x45a12f
cmp byte [edi], 0xff
jne 0x45a12f
cmp byte [edi + 1], 0xfe
jne 0x45a12f
mov dl, 1
test dl, dl
lea eax, [ecx - 2]
push 0
cmove eax, ecx
mov ecx, ebx
shr eax, 1
test dl, dl
push 1
push eax
lea eax, [edi + 2]
cmove eax, edi
push eax
call fcn.0049fde0
neg eax
sbb eax, eax
and eax, esi
mov dword [esp + 0x14], eax
push edi
call fcn.004bb7ab
add esp, 4
mov ecx, ebx
push 0
push 1
call fcn.00401640
cmp byte [esp + 0xe], 0
mov edi, eax
je 0x45a274
cmp byte [ebx + 0x17], 0
jne 0x45a150
mov esi, dword [ebx + 0xc]
jmp 0x45a152
mov eax, dword [esp + 0x2c]
xor dl, dl
cmp eax, 0x4b0
je 0x45a0da
push eax
push ecx
push edi
mov ecx, ebx
call fcn.004a08e0
test eax, eax
jne 0x45a103
mov dword [esp + 0x14], eax
jmp 0x45a103
mov esi, ebx
cmp byte [esi + 0x17], 1
jne 0x45a16a
test byte [esi + 0x15], 8
je 0x45a165
mov ecx, esi
call fcn.00401560
lea eax, [esi + 0xc]
jmp 0x45a16f
mov eax, 0x50bba0
mov eax, dword [eax]
mov edx, 0x4f8a98
shr eax, 1
mov ecx, edi
mov dword [esp + 0x2c], eax
lea eax, [esp + 0x2c]
push eax
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push 1
push 0x4f94dc
call fcn.0049c380
add esp, 0x18
cmp byte [ebx + 0x17], 0
jne 0x45a1a3
mov esi, dword [ebx + 0xc]
jmp 0x45a1a5
mov esi, ebx
cmp byte [esi + 0x17], 1
jne 0x45a1c8
test byte [esi + 0x15], 8
je 0x45a1b8
mov ecx, esi
call fcn.00401560
mov eax, dword [esp + 0x2c]
add esi, 0xc
add eax, eax
mov dword [esi], eax
jmp 0x45a274
mov eax, dword [esp + 0x2c]
mov esi, 0x50bba0
add eax, eax
mov dword [esi], eax
jmp 0x45a274
mov al, byte [ebx + 0x17]
test al, al
jne 0x45a1e7
mov eax, dword [ebx + 0xc]
mov al, byte [eax + 0x17]
cmp al, 2
jne 0x45a228
mov edx, dword [esp + 0x1c]
mov ecx, edi
call fcn.0049fc10
push edi
mov esi, eax
call fcn.004bb7ab
add esp, 4
cmp esi, 1
jne 0x45a0bd
mov ecx, dword [0x507a8c]
push esi
push 0
push 0xffffffffffffffff
push 0x4da494
call fcn.0049fde0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
mov eax, dword [esp + 0x1c]
mov dword [esp + 0x2c], eax
test al, 1
je 0x45a23d
mov byte [eax + edi], 0
inc eax
mov dword [esp + 0x2c], eax
xor ecx, ecx
mov word [eax + edi], cx
mov ecx, ebx
call fcn.004253c0
mov ecx, dword [esp + 0x2c]
mov dword [eax], ecx
jmp 0x45a274
xor eax, eax
mov ecx, ebx
mov word [edi], ax
call fcn.004253c0
cmp byte [esp + 0xf], 0
mov dword [eax], 0
jne 0x45a274
push edi
call fcn.004bb7ab
add esp, 4
push dword [esp + 0x18]
mov ecx, ebx
call fcn.00427aa0
test eax, eax
je 0x45a0bd
cmp dword [esp + 0x14], 0
mov ecx, dword [esp + 0x10]
sete al
movzx eax, al
push eax
call fcn.00447370
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4
mov ecx, dword [esp + 0x10]
push 0x4da3cc
push 0
push 0x4ee268
call fcn.00447570
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4