Function at 0x4ddf1f
Capabilities:
Get file size
Read file on windows

Disassembly:
push 0x738
mov eax, 0x5547f2
call fcn.00519415
mov esi, dword [ebp + 8]
lea ecx, [ebp - 0x508]
call fcn.004b67a3
xor ebx, ebx
lea ecx, [ebp - 0x508]
push ebx
push ebx
push esi
mov dword [ebp - 4], ebx
call fcn.004bb147
lea eax, [ebp - 0x400]
push eax
lea ecx, [ebp - 0x19c]
call fcn.004be3e0
mov byte [ebp - 4], 1
mov esi, ebx
mov edi, ebx
call fcn.004b8149
push eax
lea ecx, [ebp - 0x94]
call fcn.004be3e0
mov byte [ebp - 4], 2
call fcn.004b8155
mov ecx, eax
call fcn.004bebc8
test al, al
je 0x4de030
lea eax, [ebp - 0x19c]
push eax
lea ecx, [ebp - 0x94]
call fcn.004be612
push ebx
push 0x80
push 3
push ebx
push 1
push SysReAllocString
lea ecx, [ebp - 0x94]
call fcn.004bea17
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x4ddfe1
lea ecx, [ebp - 0x94]
mov byte [ebp - 4], 1
call fcn.004be508
jmp 0x4de1aa
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, eax
test edi, edi
je 0x4ddfcd
and dword [ebp - 0x744], 0
push edi
call fcn.0050823b
pop ecx
push 0
mov esi, eax
lea eax, [ebp - 0x744]
push eax
push edi
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp dword [ebp - 0x744], edi
je 0x4de197
push esi
call fcn.0051011c
pop ecx
xor esi, esi
jmp 0x4ddfcd
call fcn.004b8155
push eax
lea ecx, [ebp - 0x94]
call fcn.004be612
call fcn.004b83ec
test al, al
je 0x4de053
call fcn.004b815b
mov ebx, eax
jmp 0x4de0b8
call fcn.004b8161
push eax
lea ecx, [ebp - 0x220]
call fcn.004be3e0
push ebx
lea ecx, [ebp - 0x220]
mov byte [ebp - 4], 3
call fcn.004bea17
push eax
call fcn.004eab92
pop ecx
pop ecx
push eax
lea ecx, [ebp - 0x94]
mov dword [ebp - 0x73c], eax
call fcn.004bea17
push eax
call sym.XFPDFEditor.exe_struct_HZIP______cdecl_OpenZip_wchar_t_const___char_const__
mov ebx, eax
mov eax, dword [ebp - 0x73c]
pop ecx
pop ecx
test eax, eax
je 0x4de0a9
push eax
call fcn.0051011c
pop ecx
lea ecx, [ebp - 0x220]
mov byte [ebp - 4], 2
call fcn.004be508
test ebx, ebx
je 0x4ddfcd
and dword [ebp - 0x740], 0
lea eax, [ebp - 0x19c]
push eax
lea ecx, [ebp - 0x118]
call fcn.004be3e0
push 0x564284
push 0x564288
lea ecx, [ebp - 0x118]
mov byte [ebp - 4], 4
call fcn.004bed92
lea eax, [ebp - 0x738]
push eax
lea eax, [ebp - 0x740]
push eax
push 1
lea ecx, [ebp - 0x118]
call fcn.004bea17
push eax
push ebx
call sym.XFPDFEditor.exe_unsigned_long_int___cdecl_FindZipItem_struct_HZIP_____wchar_t_const___bool__int___struct_ZIPENTRY__
add esp, 0x14
test eax, eax
je 0x4de12f
lea ecx, [ebp - 0x118]
mov byte [ebp - 4], 2
call fcn.004be508
jmp 0x4ddfcd
mov edi, dword [ebp - 0x50c]
test edi, edi
je 0x4de11b
push edi
call fcn.0050823b
push edi
mov esi, eax
push esi
push dword [ebp - 0x740]
push ebx
call sym.XFPDFEditor.exe_unsigned_long_int___cdecl_UnzipItem_struct_HZIP_____int__void___unsigned_int_
add esp, 0x14
test eax, eax
je 0x4de178
cmp eax, 0x600
je 0x4de178
push esi
call fcn.0051011c
pop ecx
xor esi, esi
call fcn.004b83ec
test al, al
jne 0x4de11b
push ebx
call sym.XFPDFEditor.exe_unsigned_long_int___cdecl_CloseZipU_struct_HZIP____
pop ecx
jmp 0x4de11b
call fcn.004b83ec
test al, al
jne 0x4de188
push ebx
call sym.XFPDFEditor.exe_unsigned_long_int___cdecl_CloseZipU_struct_HZIP____
pop ecx
lea ecx, [ebp - 0x118]
mov byte [ebp - 4], 2
call fcn.004be508
lea ecx, [ebp - 0x94]
mov byte [ebp - 4], 1
call fcn.004be508
test esi, esi
jne 0x4de21e
push 0
push 0x80
push 3
push 0
push 1
push SysReAllocString
lea ecx, [ebp - 0x19c]
call fcn.004bea17
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
cmp ebx, 0xffffffff
je 0x4de21e
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, eax
test edi, edi
je 0x4de21e
and dword [ebp - 0x73c], 0
push edi
call fcn.0050823b
pop ecx
push 0
mov esi, eax
lea eax, [ebp - 0x73c]
push eax
push edi
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp dword [ebp - 0x73c], edi
je 0x4de21e
push esi
call fcn.0051011c
pop ecx
xor esi, esi
xor ebx, ebx
test esi, esi
je 0x4de236
push edi
push esi
call fcn.004ddeb4
push esi
mov ebx, eax
call fcn.0051011c
add esp, 0xc
lea ecx, [ebp - 0x19c]
mov byte [ebp - 4], 0
call fcn.004be508
or dword [ebp - 4], 0xffffffff
lea ecx, [ebp - 0x508]
call fcn.004b6c1f
mov eax, ebx
call fcn.005193c4
ret