Function at 0x43caa0
Capabilities:
Convert ip address from string
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x628
mov eax, dword [0x4a337c]
xor eax, esp
mov dword [esp + 0x624], eax
push ebx
push ebp
mov ebp, dword [esp + 0x634]
push esi
push edi
mov edi, dword [esp + 0x640]
mov eax, dword [ebp + 0xc]
mov dword [esp + 0x10], eax
add eax, 0x378
push 0x2f
mov dword [esp + 0x30], eax
lea eax, [esp + 0xc0]
push 0
push eax
mov dword [esp + 0x44], ebp
mov dword [esp + 0x2c], 0xffffffff
call fcn.0045c6b0
mov esi, dword [ebp + 0x51c]
xor eax, eax
add esp, 0xc
mov dword [esp + 0x30], eax
mov dword [esp + 0x34], eax
mov dword [esp + 0x28], eax
mov dword [esp + 0x24], eax
mov byte [esp + 0x17], 1
mov dword [esp + 0x18], eax
test esi, esi
je 0x43cd2f
mov ecx, esi
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x43cb24
sub ecx, edx
cmp ecx, 1
jbe 0x43cd2f
mov ecx, esi
lea edx, [ecx + 1]
nop dword [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x43cb40
sub ecx, edx
cmp ecx, 0x41
jae 0x43cb55
mov ecx, 0x41
jmp 0x43cb69
mov ecx, esi
lea edx, [ecx + 1]
nop word [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x43cb60
sub ecx, edx
lea eax, [ecx + 1]
push 1
push eax
call dword [0x4a3010]
add esp, 8
mov dword [esp + 0x18], eax
test eax, eax
jne 0x43cb8c
mov ebx, dword [esp + 0x10]
lea esi, [eax + 0x1b]
jmp 0x43d200
mov al, byte [esi]
cmp al, 0x5b
jne 0x43cbbc
push 0x5d
push esi
call fcn.0045c810
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x43cc2d
lea ecx, [esi + 1]
sub eax, ecx
push eax
push ecx
push dword [esp + 0x20]
call fcn.00462a60
add esp, 0xc
jmp 0x43cc2d
cmp al, 0x3a
jne 0x43cbc4
mov ebx, esi
jmp 0x43cc2d
push 0x3a
push esi
call fcn.0045c810
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x43cc1a
lea eax, [esp + 0x3c]
push eax
push esi
push 0x17
call dword [sym.imp.WS2_32.dll_inet_pton]
cmp eax, 1
jne 0x43cc06
mov ecx, dword [esp + 0x18]
sub ecx, esi
nop
mov al, byte [esi]
lea esi, [esi + 1]
mov byte [esi + ecx - 1], al
test al, al
jne 0x43cbf0
xor esi, esi
xor edx, edx
jmp 0x43cc87
mov eax, ebx
sub eax, esi
push eax
push esi
push dword [esp + 0x20]
call fcn.00462a60
add esp, 0xc
jmp 0x43cc2d
mov ecx, dword [esp + 0x18]
sub ecx, esi
mov al, byte [esi]
lea esi, [esi + 1]
mov byte [esi + ecx - 1], al
test al, al
jne 0x43cc20
xor esi, esi
xor edx, edx
test ebx, ebx
je 0x43cc87
push 0x3a
push ebx
call fcn.0045c810
mov ebx, eax
add esp, 8
xor edx, edx
test ebx, ebx
je 0x43cc87
push 0xa
push edx
lea eax, [ebx + 1]
push eax
call fcn.00463ddc
push eax
call fcn.0041c3d0
push 0x2d
push ebx
movzx esi, ax
call fcn.0045c810
add esp, 0x18
test eax, eax
je 0x43cc85
push 0xa
inc eax
push 0
push eax
call fcn.00463ddc
push eax
call fcn.0041c3d0
add esp, 0x10
movzx edx, ax
jmp 0x43cc87
mov edx, esi
xor ecx, ecx
movzx eax, dx
cmp si, dx
cmovbe ecx, eax
movzx eax, si
movzx ebx, cx
xor ecx, ecx
cmp si, dx
cmovbe ecx, eax
mov eax, dword [esp + 0x18]
movzx esi, cx
cmp byte [eax], 0
je 0x43cd23
push 0x401
lea ecx, [esp + 0x234]
push ecx
push eax
mov eax, dword [esp + 0x1c]
push dword [eax + 0x448]
mov eax, dword [eax + 0x40]
add eax, 0x10
push eax
call fcn.00454560
add esp, 4
push eax
mov eax, dword [esp + 0x24]
mov eax, dword [eax + 0x40]
push dword [eax]
call fcn.00403d90
add esp, 0x18
sub eax, 0
je 0x43cd05
sub eax, 1
je 0x43d1f7
sub eax, 1
jne 0x43cd0f
lea eax, [esp + 0x230]
mov dword [esp + 0x30], eax
jmp 0x43cd11
mov eax, dword [esp + 0x18]
mov dword [esp + 0x30], eax
jmp 0x43cd11
xor eax, eax
mov dword [esp + 0x28], esi
mov dword [esp + 0x24], ebx
test eax, eax
jne 0x43cdc4
jmp 0x43cd2f
mov eax, esi
mov dword [esp + 0x28], eax
mov eax, ebx
mov dword [esp + 0x24], eax
mov ebx, dword [esp + 0x10]
lea eax, [esp + 0x1c]
push eax
lea eax, [esp + 0x40]
mov dword [esp + 0x20], 0x80
push eax
push dword [ebx + 0x120]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x43cd82
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0042c4f0
push eax
push str.getsockname___failed:__s
push ebp
call fcn.0041a8a0
add esp, 0x18
jmp 0x43d1fb
cmp word [esp + 0x3c], 0x17
lea edx, [esp + 0x44]
movzx eax, word [esp + 0x3c]
lea ecx, [esp + 0x40]
cmove ecx, edx
lea edx, [esp + 0x230]
push 0x401
push edx
push ecx
push eax
call sub.WS2_32.dll_inet_ntop
test eax, eax
je 0x43d1fb
lea eax, [esp + 0x230]
mov byte [esp + 0x17], 0
mov dword [esp + 0x30], eax
lea ecx, [esp + 0x34]
push ecx
push 0
push 0
push eax
push ebp
call fcn.004222f0
add esp, 0x14
cmp eax, 1
jne 0x43cdea
lea eax, [esp + 0x34]
push eax
push ebp
call fcn.004104a0
add esp, 8
mov eax, dword [esp + 0x34]
test eax, eax
je 0x43d1e4
mov ebx, dword [eax]
push eax
push ebp
call fcn.00422640
add esp, 8
test ebx, ebx
je 0x43d1e4
xor esi, esi
nop dword [eax]
lea eax, [esp + 0x20]
push eax
mov eax, dword [esp + 0x14]
movzx eax, byte [eax + 0x451]
push eax
push 0
push ebx
push ebp
call fcn.004465a0
add esp, 0x14
test eax, eax
je 0x43ce42
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov ebx, dword [ebx + 0x1c]
mov esi, eax
test ebx, ebx
jne 0x43ce10
jmp 0x43ce46
test ebx, ebx
jne 0x43ce6d
push 0x100
lea eax, [esp + 0x134]
push eax
push esi
call fcn.0042c4f0
push eax
push str.socket_failure:__s
push ebp
call fcn.0041a8a0
add esp, 0x18
jmp 0x43d1f7
push dword [ebx + 0x10]
lea eax, [esp + 0x40]
push dword [ebx + 0x18]
push eax
call fcn.0045c940
mov eax, dword [ebx + 0x10]
add esp, 0xc
mov dword [esp + 0x1c], eax
mov eax, dword [esp + 0x28]
cmp ax, word [esp + 0x24]
movzx esi, ax
ja 0x43d1d4
mov eax, dword [sym.imp.WS2_32.dll_htons]
push esi
call eax
push dword [esp + 0x1c]
movzx eax, ax
mov word [esp + 0x42], ax
lea eax, [esp + 0x40]
push eax
push dword [esp + 0x28]
call dword [sym.imp.WS2_32.dll_bind]
test eax, eax
je 0x43cf84
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
cmp byte [esp + 0x17], 0
je 0x43cf42
cmp eax, 0x2741
jne 0x43cf42
push 0x100
lea eax, [esp + 0x134]
push eax
push 0x2741
call fcn.0042c4f0
push eax
movzx eax, si
push eax
push str.bind_port_hu__on_non_local_address_failed:__s
push ebp
call fcn.0041a970
add esp, 0x1c
mov dword [esp + 0x1c], 0x80
lea eax, [esp + 0x1c]
push eax
lea eax, [esp + 0x40]
push eax
mov eax, dword [esp + 0x18]
push dword [eax + 0x120]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x43cfaf
mov eax, dword [esp + 0x28]
movzx esi, ax
cmp si, word [esp + 0x24]
mov byte [esp + 0x17], 0
jmp 0x43ce93
cmp eax, 0x2740
je 0x43cf4e
cmp eax, 0xd
jne 0x43cf59
inc esi
cmp si, word [esp + 0x24]
jmp 0x43ce93
push 0x100
lea ecx, [esp + 0x134]
push ecx
push eax
call fcn.0042c4f0
push eax
movzx eax, si
push eax
push str.bind_port_hu__failed:__s
push ebp
call fcn.0041a8a0
add esp, 0x1c
jmp 0x43d1f7
cmp si, word [esp + 0x24]
ja 0x43d1d4
lea eax, [esp + 0x1c]
mov dword [esp + 0x1c], 0x80
push eax
lea eax, [esp + 0x40]
push eax
push dword [esp + 0x28]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x43cfdc
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0042c4f0
push eax
push str.getsockname___failed:__s
push ebp
call fcn.0041a8a0
add esp, 0x18
jmp 0x43d1f7
push 1
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_listen]
test eax, eax
je 0x43d019
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0042c4f0
push eax
push str.socket_failure:__s
push ebp
call fcn.0041a8a0
add esp, 0x18
jmp 0x43d1f7
push 0x2f
lea eax, [esp + 0xc0]
push eax
push ebx
call fcn.004222b0
mov eax, dword [esp + 0x1c]
add esp, 0xc
cmp byte [eax + 0x1d2], 0
jne 0x43d049
cmp byte [eax + 0x1cc], 0
je 0x43d049
mov byte [eax + 0x1d2], 1
cmp edi, 2
je 0x43d0aa
mov esi, dword [sym.imp.WS2_32.dll_ntohs]
mov cx, word [esp + 0x3c]
nop dword [eax]
cmp byte [eax + 0x1d2], 0
jne 0x43d06d
test edi, edi
je 0x43d0a4
cmp edi, 1
jne 0x43d078
cmp cx, 2
jne 0x43d0a4
movzx eax, cx
sub eax, 2
je 0x43d085
sub eax, 0x15
jne 0x43d0a0
push dword [esp + 0x3e]
call esi
movzx ebx, ax
test edi, edi
je 0x43d17e
cmp edi, 1
je 0x43d0ea
mov cx, word [esp + 0x3c]
mov eax, dword [esp + 0x10]
inc edi
cmp edi, 2
jne 0x43d060
mov ebx, dword [esp + 0x2c]
lea eax, [esp + 0x20]
mov dword [ebx + 0x90], edi
mov ebx, dword [esp + 0x10]
push eax
push 1
push ebx
push ebp
call fcn.004462d0
mov esi, eax
add esp, 0x10
test esi, esi
jne 0x43d200
mov eax, dword [ebp + 0xc]
mov dword [esp + 0x20], 0xffffffff
mov byte [eax + 0x416], 0x1c
jmp 0x43d20a
lea edx, [esp + 0xec]
mov ebp, 0x2c
lea esi, [esp + 0xbc]
nop dword [eax]
mov cl, byte [esi]
test cl, cl
je 0x43d117
cmp cl, 0x2e
movzx eax, cl
cmove eax, ebp
mov byte [edx], al
inc edx
add esi, 1
jne 0x43d100
movzx ecx, bx
movzx eax, cl
push eax
shr ecx, 8
push ecx
push str.__d__d
push 0x14
push edx
mov byte [edx], 0
call fcn.0042a8f0
mov ebx, dword [esp + 0x40]
lea eax, [esp + 0x100]
mov ebp, dword [esp + 0x4c]
push eax
push str.PORT
push 0x489378
push ebx
push ebp
call fcn.00452f60
mov esi, eax
add esp, 0x28
test esi, esi
je 0x43d0ae
push esi
call fcn.0042c660
push eax
push str.Failure_sending_PORT_command:__s
push ebp
call fcn.0041a8a0
mov ebx, dword [esp + 0x20]
add esp, 0x10
jmp 0x43d200
movzx eax, bx
mov ebx, dword [esp + 0x2c]
push eax
lea eax, [esp + 0xc0]
push eax
xor eax, eax
cmp word [esp + 0x44], 2
setne al
inc eax
push eax
push str.EPRT
push str._s__d_s_hu
push ebx
push ebp
call fcn.00452f60
mov esi, eax
add esp, 0x1c
test esi, esi
je 0x43d0ae
push esi
call fcn.0042c660
push eax
push str.Failure_sending_EPRT_command:__s
push ebp
call fcn.0041a8a0
mov ebx, dword [esp + 0x20]
add esp, 0x10
jmp 0x43d200
push str.bind___failed__we_ran_out_of_ports
push ebp
call fcn.0041a8a0
add esp, 8
jmp 0x43d1f7
mov eax, dword [esp + 0x30]
push eax
push str.failed_to_resolve_the_address_provided_to_PORT:__s
push ebp
call fcn.0041a8a0
add esp, 0xc
mov ebx, dword [esp + 0x10]
mov esi, 0x1e
mov eax, dword [ebp + 0xc]
mov byte [eax + 0x416], 0
mov eax, dword [esp + 0x20]
cmp eax, 0xffffffff
je 0x43d21e
push eax
push ebx
push ebp
call fcn.004464d0
add esp, 0xc
push dword [esp + 0x18]
call dword [0x4a3004]
mov ecx, dword [esp + 0x638]
add esp, 4
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.0045aab3
add esp, 0x628
ret