Function at 0x451f18
Capabilities:
Get file size
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push ecx
mov ecx, 0x19
push 0
push 0
dec ecx
jne 0x451f21
xchg dword [ebp - 4], ecx
push ebx
push esi
push edi
mov ebx, ecx
mov dword [ebp - 4], edx
mov dword [ebp - 0x24], eax
mov esi, dword [ebp + 8]
mov eax, dword [ebp - 4]
call fcn.00406b90
xor eax, eax
push ebp
push 0x4528ec
push dword fs:[eax]
mov dword fs:[eax], esp
mov byte [ebp - 0x25], 0
cmp dword [ebp - 4], 0
je 0x45284a
cmp dword [ebp - 0x24], 0
jne 0x452185
lea edx, [ebp - 8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
cmp byte [ebp + 0xc], 0
jne 0x452167
mov eax, 0xfa
call fcn.004377a8
test al, al
je 0x451f98
push 0
call sub.user32.dll_MessageBeep
jmp 0x45284a
push 0x7fffffff
mov edi, dword [0x699d64]
mov edi, dword [edi]
mov ecx, 1
mov edx, dword [ebp - 8]
mov eax, 0x452910
call edi
test eax, eax
jle 0x451fe1
lea edx, [ebp - 0x94]
mov eax, dword [ebp - 8]
call fcn.00435968
mov edx, dword [ebp - 0x94]
lea eax, [ebp - 8]
call fcn.00406bfc
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 8]
call fcn.0040f8a4
jmp 0x451ff0
lea ecx, [ebp - 0xc]
mov dl, 1
mov eax, 0x10
call fcn.00437eec
lea edx, [ebp - 0x98]
mov eax, dword [ebp - 8]
call fcn.0040f864
mov edx, dword [ebp - 0x98]
lea eax, [ebp - 8]
call fcn.00406bfc
lea eax, [ebp - 8]
mov edx, 0x452920
call fcn.00406f0c
lea eax, [ebp - 8]
mov edx, 0x105
call fcn.00406e74
lea edx, [ebp - 0x10]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x2ac]
lea eax, [ebp - 0x8d]
mov edx, 0x4c
call fcn.0040b0a4
mov dword [ebp - 0x8d], 0x4c
mov dword [ebp - 0x89], ebx
mov dword [ebp - 0x75], 1
mov dword [ebp - 0x6d], 0x104
mov dword [ebp - 0x59], 0x8004
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x4520cc
mov eax, dword [ebp - 8]
call fcn.00406c34
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0xc]
call fcn.00406c34
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x10]
call fcn.00406c34
mov dword [ebp - 0x5d], eax
mov eax, 0x452924
mov dword [ebp - 0x81], eax
mov eax, 0x452940
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameW
test eax, eax
je 0x45284a
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x71]
call fcn.00406d64
jmp 0x452190
lea eax, [ebp - 0x14]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406dfc
lea eax, [ebp - 0x18]
mov edx, dword [ebp - 0xc]
mov ecx, 0
call fcn.00406dfc
lea eax, [ebp - 0x1c]
mov edx, dword [ebp - 0x10]
mov ecx, 0
call fcn.00406dfc
mov eax, dword [ebp - 0x14]
call fcn.004061f8
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0x18]
call fcn.004061f8
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x1c]
call fcn.004061f8
mov dword [ebp - 0x5d], eax
mov eax, 0x45294c
mov dword [ebp - 0x81], eax
mov eax, 0x45295c
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameA
test eax, eax
je 0x45284a
lea eax, [ebp - 0x9c]
mov edx, dword [ebp - 0x71]
mov ecx, 0
call fcn.00405df0
mov edx, dword [ebp - 0x9c]
lea eax, [ebp - 8]
call fcn.00406dd4
jmp 0x452190
lea edx, [ebp - 0xa0]
mov eax, dword [ebp - 8]
call fcn.00435968
mov edx, dword [ebp - 0xa0]
lea eax, [ebp - 8]
call fcn.00406bfc
jmp 0x452190
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x24]
call fcn.00406bfc
push ebp
mov eax, dword [ebp - 8]
call fcn.00451bc4
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x4521c7
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406c34
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x4521fc
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
lea eax, [ebp - 0xa4]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406dfc
mov eax, dword [ebp - 0xa4]
call fcn.004061f8
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x452328
push 0x7fffffff
lea edx, [ebp - 0xa8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
mov edx, dword [ebp - 0xa8]
mov edi, dword [0x699d64]
mov edi, dword [edi]
mov ecx, 1
mov eax, 0x452910
call edi
test eax, eax
jne 0x452328
push 0x452970
lea edx, [ebp - 0xb4]
xor eax, eax
call fcn.00435874
mov eax, dword [ebp - 0xb4]
lea edx, [ebp - 0xb0]
call fcn.0040f864
mov eax, dword [ebp - 0xb0]
lea edx, [ebp - 0xac]
call fcn.00435928
push dword [ebp - 0xac]
push 0x452910
lea edx, [ebp - 0xb8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
push dword [ebp - 0xb8]
lea eax, [ebp - 8]
mov edx, 4
call fcn.0040705c
push 0x45299c
push 0x4529c0
push 0x4529e4
lea edx, [ebp - 8]
mov ecx, 0x452a10
xor eax, eax
call fcn.00438228
push ebp
mov eax, dword [ebp - 8]
call fcn.00451bc4
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x4522f3
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406c34
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x452328
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
lea eax, [ebp - 0xbc]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406dfc
mov eax, dword [ebp - 0xbc]
call fcn.004061f8
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
je 0x45284a
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x200]
test al, al
je 0x4527c3
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
mov dword [ebp - 0x2c], eax
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406bfc
cmp dword [ebp - 0x2c], 0
jbe 0x452416
lea ecx, [ebp - 8]
mov edx, 0x452a38
mov eax, dword [ebp - 4]
call fcn.00451938
lea eax, [ebp - 8]
call fcn.00405d1c
call fcn.00406e68
cmp eax, 0x1f
jne 0x45240c
lea ecx, [ebp - 0xc0]
mov edx, 0x452a60
mov eax, dword [ebp - 4]
call fcn.00451938
cmp dword [ebp - 0xc0], 0
je 0x4523bd
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x210]
mov byte [ebp - 0x41], al
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x220]
jmp 0x4523d4
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x218]
mov byte [ebp - 0x41], al
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x228]
cmp byte [ebp - 0x41], 0
jne 0x4523e6
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406bfc
jmp 0x452416
sub al, 1
jb 0x4523ee
je 0x4523fd
jmp 0x452416
lea eax, [ebp - 8]
mov edx, 9
call fcn.00406e74
jmp 0x452416
lea eax, [ebp - 8]
mov edx, 0x14
call fcn.00406e74
jmp 0x452416
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406bfc
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
test eax, eax
jbe 0x452433
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
cmp eax, dword [ebp - 0x2c]
jb 0x452437
xor eax, eax
jmp 0x452439
mov al, 1
mov byte [ebp - 0x41], al
cmp byte [ebp - 0x41], 0
jne 0x45244c
cmp dword [ebp - 8], 0
je 0x4527b5
push 0
push 0
push 0
push 4
push 0
push ebx
call sub.kernel32.dll_CreateFileMappingW
mov dword [ebp - 0x3c], eax
cmp dword [ebp - 0x3c], 0
je 0x4527b5
push 0
push 0
push 0
push 0xf001f
mov eax, dword [ebp - 0x3c]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [ebp - 0x40], eax
cmp dword [ebp - 0x40], 0
je 0x4527ac
cmp dword [ebp - 8], 0
je 0x452712
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 8]
call fcn.0040f594
mov eax, dword [ebp - 0x2c]
mov dword [ebp - 0x30], eax
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
dec eax
push eax
push 0
lea eax, [ebp - 0x14]
xor edx, edx
call fcn.00405d4c
call fcn.00405ed0
add eax, 2
push eax
lea eax, [ebp - 0xc4]
mov ecx, dword [ebp - 0x14]
mov edx, 0x452a8c
call fcn.00405f80
mov eax, dword [ebp - 0xc4]
call fcn.004061f8
mov edi, dword [0x699a60]
mov edi, dword [edi]
mov edx, dword [ebp - 0x40]
pop ecx
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0
jl 0x452708
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0
mov edi, dword [0x699a60]
mov edi, dword [edi]
mov eax, 0x452a90
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
cmp dword [ebp - 0x34], 0
jge 0x452550
mov eax, dword [ebp - 0x2c]
push eax
push 0
push 0
push 0
mov edi, dword [0x699a60]
mov edi, dword [edi]
mov eax, 0x452a9c
mov ecx, 9
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
jmp 0x452554
add dword [ebp - 0x34], 2
cmp dword [ebp - 0x34], 0
jl 0x452708
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0x7fffffff
mov edi, dword [0x699a60]
mov edi, dword [edi]
mov eax, 0x452a90
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x38], eax
cmp dword [ebp - 0x38], 0
jge 0x452595
mov eax, dword [ebp - 0x2c]
mov dword [ebp - 0x38], eax
jmp 0x452599
add dword [ebp - 0x38], 2
push 0
mov ecx, dword [ebp - 0x38]
sub ecx, dword [ebp - 0x34]
mov edx, dword [ebp - 0x40]
add edx, dword [ebp - 0x34]
lea eax, [ebp - 0x18]
call fcn.00405c74
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 0x18]
call fcn.0040f304
mov ecx, 0x452ab4
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451ea4
test al, al
je 0x452708
mov ecx, 0x452ad8
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451ea4
test al, al
je 0x452708
mov ecx, 0x452a60
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451ea4
test al, al
je 0x452708
mov ecx, 0x452b04
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451ea4
test al, al
je 0x452708
lea ecx, [ebp - 0xc8]
mov edx, 0x452b04
mov eax, dword [ebp - 0xc]
call fcn.00451938
cmp dword [ebp - 0xc8], 0
jne 0x452666
mov ecx, 0x452b20
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451ea4
test al, al
je 0x452708
mov ecx, 0x452b4c
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451ea4
test al, al
je 0x452708
lea ecx, [ebp - 8]
mov edx, 0x452b7c
mov eax, dword [ebp - 0xc]
call fcn.00451938
cmp dword [ebp - 8], 0
je 0x4526a6
lea eax, [ebp - 8]
call fcn.00405d1c
call fcn.00406e68
push eax
mov eax, dword [ebp - 8]
call fcn.00406c34
mov edx, eax
mov edi, dword [0x69a0c4]
mov edi, dword [edi]
xor eax, eax
pop ecx
call edi
mov dword [ebp - 0x30], eax
jmp 0x4526ad
mov dword [ebp - 0x30], 1
lea eax, [ebp - 0xcc]
push eax
mov eax, dword [ebp - 0x30]
inc eax
mov cx, 0x30
mov edx, 1
call fcn.0040e01c
mov eax, dword [ebp - 0xcc]
push eax
lea eax, [ebp - 4]
mov ecx, 0x452a38
mov edx, 0x452b7c
call fcn.00451d28
mov eax, dword [ebp - 0x38]
cmp eax, dword [ebp - 0x2c]
jae 0x4526fd
mov ecx, dword [ebp - 0x2c]
sub ecx, eax
mov edx, dword [ebp - 0x40]
add edx, dword [ebp - 0x34]
mov eax, dword [ebp - 0x40]
add eax, dword [ebp - 0x38]
call fcn.00403418
mov eax, dword [ebp - 0x38]
sub eax, dword [ebp - 0x34]
sub dword [ebp - 0x2c], eax
jmp 0x452712
cmp dword [ebp - 0x30], 0xffffffff
jne 0x4524a5
cmp byte [ebp - 0x41], 0
je 0x4527a3
push 0
push 0
push 0
push ebx
call sub.kernel32.dll_SetFilePointer_1
xor eax, eax
mov dword [ebp - 0x30], eax
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
inc eax
push eax
push 0x7fffffff
mov edi, dword [0x699a60]
mov edi, dword [edi]
mov eax, 0x452a90
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0xffffffff
je 0x452782
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
mov edi, eax
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
shr eax, 2
sub edi, eax
mov eax, dword [ebp - 0x2c]
sub eax, dword [ebp - 0x30]
cmp edi, eax
jbe 0x45272d
cmp dword [ebp - 0x30], 0xffffffff
je 0x4527a3
add dword [ebp - 0x30], 2
mov eax, dword [ebp - 0x30]
sub dword [ebp - 0x2c], eax
mov edx, dword [ebp - 0x40]
mov eax, dword [ebp - 0x40]
add eax, dword [ebp - 0x30]
mov ecx, dword [ebp - 0x2c]
call fcn.00403418
mov eax, dword [ebp - 0x40]
push eax
call sub.kernel32.dll_UnmapViewOfFile
mov eax, dword [ebp - 0x3c]
push eax
call sub.kernel32.dll_CloseHandle_1
push 0
push 0
mov eax, dword [ebp - 0x2c]
push eax
push ebx
call sub.kernel32.dll_SetFilePointer_1
push dword [ebp - 4]
push 0x452b94
push 0x452b94
lea eax, [ebp - 4]
mov edx, 3
call fcn.0040705c
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 4]
call fcn.0040f594
push 0
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 0x14]
xor edx, edx
call fcn.00405d4c
call fcn.00405ed0
push eax
mov eax, dword [ebp - 0x14]
push eax
push ebx
call sub.kernel32.dll_WriteFile_1
cmp eax, 1
sbb eax, eax
inc eax
mov byte [ebp - 0x25], al
push ebx
call sub.kernel32.dll_SetEndOfFile_1
push ebx
call sub.kernel32.dll_CloseHandle_1
cmp dword [ebp - 0x24], 0
sete al
and al, byte [ebp + 0xc]
je 0x45284a
lea eax, [ebp - 0x20]
call fcn.00408de8
push eax
push 0x452b9c
push esi
mov eax, dword [esi]
call dword [eax]
test eax, eax
jne 0x45284a
mov dl, 1
mov eax, dword [ebp - 0x20]
mov ecx, dword [eax]
call dword [ecx + 0x24]
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x4528f6
lea eax, [ebp - 0xcc]
mov edx, 2
call fcn.00406ba0
lea eax, [ebp - 0xc4]
call fcn.00405b3c
lea eax, [ebp - 0xc0]
call fcn.00406b98
lea eax, [ebp - 0xbc]
call fcn.00405b3c
lea eax, [ebp - 0xb8]
mov edx, 5
call fcn.00406ba0
lea eax, [ebp - 0xa4]
call fcn.00405b3c
lea eax, [ebp - 0xa0]
call fcn.00406b98
lea eax, [ebp - 0x9c]
call fcn.00405b3c
lea eax, [ebp - 0x98]
mov edx, 2
call fcn.00406ba0
lea eax, [ebp - 0x20]
call fcn.00408de8
lea eax, [ebp - 0x1c]
mov edx, 3
call fcn.00405b60
lea eax, [ebp - 0x10]
mov edx, 4
call fcn.00406ba0
ret