Function at 0x43b340
Capabilities:
Convert ip address from string
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x628
mov eax, dword [0x4a0368]
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.0045a9b0
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 0x43b5cf
mov ecx, esi
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x43b3c4
sub ecx, edx
cmp ecx, 1
jbe 0x43b5cf
mov ecx, esi
lea edx, [ecx + 1]
nop dword [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x43b3e0
sub ecx, edx
cmp ecx, 0x41
jae 0x43b3f5
mov ecx, 0x41
jmp 0x43b409
mov ecx, esi
lea edx, [ecx + 1]
nop word [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x43b400
sub ecx, edx
lea eax, [ecx + 1]
push 1
push eax
call dword [0x4a0010]
add esp, 8
mov dword [esp + 0x18], eax
test eax, eax
jne 0x43b42c
mov ebx, dword [esp + 0x10]
lea esi, [eax + 0x1b]
jmp 0x43baa0
mov al, byte [esi]
cmp al, 0x5b
jne 0x43b45c
push 0x5d
push esi
call fcn.0045ab10
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x43b4cd
lea ecx, [esi + 1]
sub eax, ecx
push eax
push ecx
push dword [esp + 0x20]
call fcn.0045fbf0
add esp, 0xc
jmp 0x43b4cd
cmp al, 0x3a
jne 0x43b464
mov ebx, esi
jmp 0x43b4cd
push 0x3a
push esi
call fcn.0045ab10
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x43b4ba
lea eax, [esp + 0x3c]
push eax
push esi
push 0x17
call dword [sym.imp.WS2_32.dll_inet_pton]
cmp eax, 1
jne 0x43b4a6
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 0x43b490
xor esi, esi
xor edx, edx
jmp 0x43b527
mov eax, ebx
sub eax, esi
push eax
push esi
push dword [esp + 0x20]
call fcn.0045fbf0
add esp, 0xc
jmp 0x43b4cd
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 0x43b4c0
xor esi, esi
xor edx, edx
test ebx, ebx
je 0x43b527
push 0x3a
push ebx
call fcn.0045ab10
mov ebx, eax
add esp, 8
xor edx, edx
test ebx, ebx
je 0x43b527
push 0xa
push edx
lea eax, [ebx + 1]
push eax
call fcn.00460f87
push eax
call fcn.0041ac30
push 0x2d
push ebx
movzx esi, ax
call fcn.0045ab10
add esp, 0x18
test eax, eax
je 0x43b525
push 0xa
inc eax
push 0
push eax
call fcn.00460f87
push eax
call fcn.0041ac30
add esp, 0x10
movzx edx, ax
jmp 0x43b527
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 0x43b5c3
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.00452e30
add esp, 4
push eax
mov eax, dword [esp + 0x24]
mov eax, dword [eax + 0x40]
push dword [eax]
call fcn.00403ac0
add esp, 0x18
sub eax, 0
je 0x43b5a5
sub eax, 1
je 0x43ba97
sub eax, 1
jne 0x43b5af
lea eax, [esp + 0x230]
mov dword [esp + 0x30], eax
jmp 0x43b5b1
mov eax, dword [esp + 0x18]
mov dword [esp + 0x30], eax
jmp 0x43b5b1
xor eax, eax
mov dword [esp + 0x28], esi
mov dword [esp + 0x24], ebx
test eax, eax
jne 0x43b664
jmp 0x43b5cf
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 0x43b622
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0042ad70
push eax
push str.getsockname___failed:__s
push ebp
call fcn.00419100
add esp, 0x18
jmp 0x43ba9b
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 0x43ba9b
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.00420b60
add esp, 0x14
cmp eax, 1
jne 0x43b68a
lea eax, [esp + 0x34]
push eax
push ebp
call fcn.0040ed00
add esp, 8
mov eax, dword [esp + 0x34]
test eax, eax
je 0x43ba84
mov ebx, dword [eax]
push eax
push ebp
call fcn.00420eb0
add esp, 8
test ebx, ebx
je 0x43ba84
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.00444e60
add esp, 0x14
test eax, eax
je 0x43b6e2
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov ebx, dword [ebx + 0x1c]
mov esi, eax
test ebx, ebx
jne 0x43b6b0
jmp 0x43b6e6
test ebx, ebx
jne 0x43b70d
push 0x100
lea eax, [esp + 0x134]
push eax
push esi
call fcn.0042ad70
push eax
push str.socket_failure:__s
push ebp
call fcn.00419100
add esp, 0x18
jmp 0x43ba97
push dword [ebx + 0x10]
lea eax, [esp + 0x40]
push dword [ebx + 0x18]
push eax
call fcn.0045ac40
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 0x43ba74
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 0x43b824
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
cmp byte [esp + 0x17], 0
je 0x43b7e2
cmp eax, 0x2741
jne 0x43b7e2
push 0x100
lea eax, [esp + 0x134]
push eax
push 0x2741
call fcn.0042ad70
push eax
movzx eax, si
push eax
push str.bind_port_hu__on_non_local_address_failed:__s
push ebp
call fcn.004191d0
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 0x43b84f
mov eax, dword [esp + 0x28]
movzx esi, ax
cmp si, word [esp + 0x24]
mov byte [esp + 0x17], 0
jmp 0x43b733
cmp eax, 0x2740
je 0x43b7ee
cmp eax, 0xd
jne 0x43b7f9
inc esi
cmp si, word [esp + 0x24]
jmp 0x43b733
push 0x100
lea ecx, [esp + 0x134]
push ecx
push eax
call fcn.0042ad70
push eax
movzx eax, si
push eax
push str.bind_port_hu__failed:__s
push ebp
call fcn.00419100
add esp, 0x1c
jmp 0x43ba97
cmp si, word [esp + 0x24]
ja 0x43ba74
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 0x43b87c
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0042ad70
push eax
push str.getsockname___failed:__s
push ebp
call fcn.00419100
add esp, 0x18
jmp 0x43ba97
push 1
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_listen]
test eax, eax
je 0x43b8b9
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0042ad70
push eax
push str.socket_failure:__s
push ebp
call fcn.00419100
add esp, 0x18
jmp 0x43ba97
push 0x2f
lea eax, [esp + 0xc0]
push eax
push ebx
call fcn.00420b20
mov eax, dword [esp + 0x1c]
add esp, 0xc
cmp byte [eax + 0x1d2], 0
jne 0x43b8e9
cmp byte [eax + 0x1cc], 0
je 0x43b8e9
mov byte [eax + 0x1d2], 1
cmp edi, 2
je 0x43b94a
mov esi, dword [sym.imp.WS2_32.dll_ntohs]
mov cx, word [esp + 0x3c]
nop dword [eax]
cmp byte [eax + 0x1d2], 0
jne 0x43b90d
test edi, edi
je 0x43b944
cmp edi, 1
jne 0x43b918
cmp cx, 2
jne 0x43b944
movzx eax, cx
sub eax, 2
je 0x43b925
sub eax, 0x15
jne 0x43b940
push dword [esp + 0x3e]
call esi
movzx ebx, ax
test edi, edi
je 0x43ba1e
cmp edi, 1
je 0x43b98a
mov cx, word [esp + 0x3c]
mov eax, dword [esp + 0x10]
inc edi
cmp edi, 2
jne 0x43b900
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.00444b90
mov esi, eax
add esp, 0x10
test esi, esi
jne 0x43baa0
mov eax, dword [ebp + 0xc]
mov dword [esp + 0x20], 0xffffffff
mov byte [eax + 0x416], 0x1c
jmp 0x43baaa
lea edx, [esp + 0xec]
mov ebp, 0x2c
lea esi, [esp + 0xbc]
nop dword [eax]
mov cl, byte [esi]
test cl, cl
je 0x43b9b7
cmp cl, 0x2e
movzx eax, cl
cmove eax, ebp
mov byte [edx], al
inc edx
add esi, 1
jne 0x43b9a0
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.00429170
mov ebx, dword [esp + 0x40]
lea eax, [esp + 0x100]
mov ebp, dword [esp + 0x4c]
push eax
push str.PORT
push 0x487320
push ebx
push ebp
call fcn.00451830
mov esi, eax
add esp, 0x28
test esi, esi
je 0x43b94e
push esi
call fcn.0042aef0
push eax
push str.Failure_sending_PORT_command:__s
push ebp
call fcn.00419100
mov ebx, dword [esp + 0x20]
add esp, 0x10
jmp 0x43baa0
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.00451830
mov esi, eax
add esp, 0x1c
test esi, esi
je 0x43b94e
push esi
call fcn.0042aef0
push eax
push str.Failure_sending_EPRT_command:__s
push ebp
call fcn.00419100
mov ebx, dword [esp + 0x20]
add esp, 0x10
jmp 0x43baa0
push str.bind___failed__we_ran_out_of_ports
push ebp
call fcn.00419100
add esp, 8
jmp 0x43ba97
mov eax, dword [esp + 0x30]
push eax
push str.failed_to_resolve_the_address_provided_to_PORT:__s
push ebp
call fcn.00419100
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 0x43babe
push eax
push ebx
push ebp
call fcn.00444d90
add esp, 0xc
push dword [esp + 0x18]
call dword [0x4a0004]
mov ecx, dword [esp + 0x638]
add esp, 4
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.00459004
add esp, 0x628
ret