Function at 0x439c70
Capabilities:
Convert ip address from string
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x628
mov eax, dword [0x4e6c40]
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 + 0x18]
mov dword [esp + 0x10], eax
add eax, 0x380
push 0x2e
mov dword [esp + 0x30], eax
lea eax, [esp + 0xc1]
push 0
push eax
mov dword [esp + 0x44], ebp
mov dword [esp + 0x2c], 0xffffffff
mov byte [esp + 0xc8], 0
call sub.VCRUNTIME140.dll_memset
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 0x439ef6
mov ecx, esi
lea edx, [ecx + 1]
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x439d00
sub ecx, edx
cmp ecx, 1
jbe 0x439ef6
mov ecx, esi
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x439d17
sub ecx, edx
cmp ecx, 0x41
jae 0x439d2c
mov ecx, 0x41
jmp 0x439d3a
mov ecx, esi
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x439d31
sub ecx, edx
lea eax, [ecx + 1]
push 1
push eax
call dword [0x4e6cb4]
add esp, 8
mov dword [esp + 0x18], eax
test eax, eax
jne 0x439d5d
mov ebx, dword [esp + 0x10]
lea esi, [eax + 0x1b]
jmp 0x43a3b0
mov al, byte [esi]
cmp al, 0x5b
jne 0x439d81
push 0x5d
push esi
call sub.VCRUNTIME140.dll_strchr
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x439e44
lea ecx, [esi + 1]
sub eax, ecx
push eax
push ecx
jmp 0x439dcf
cmp al, 0x3a
jne 0x439d89
mov ebx, esi
jmp 0x439ddb
push 0x3a
push esi
call sub.VCRUNTIME140.dll_strchr
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x439e31
lea eax, [esp + 0x44]
push eax
push esi
push 0x17
call dword [sym.imp.WS2_32.dll_inet_pton]
cmp eax, 1
jne 0x439dc9
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 0x439db7
jmp 0x439e44
mov eax, ebx
sub eax, esi
push eax
push esi
push dword [esp + 0x20]
call sub.api_ms_win_crt_string_l1_1_0.dll_strncpy
add esp, 0xc
push 0x3a
push ebx
call sub.VCRUNTIME140.dll_strchr
mov ebx, eax
add esp, 8
xor esi, esi
xor edx, edx
test ebx, ebx
je 0x439e48
push 0xa
push edx
lea eax, [ebx + 1]
push eax
call sub.api_ms_win_crt_convert_l1_1_0.dll_strtoul
push eax
call fcn.00419b80
push 0x2d
push ebx
movzx esi, ax
call sub.VCRUNTIME140.dll_strchr
add esp, 0x18
test eax, eax
je 0x439e2d
push 0xa
inc eax
push 0
push eax
call sub.api_ms_win_crt_convert_l1_1_0.dll_strtoul
push eax
call fcn.00419b80
add esp, 0x10
movzx edx, ax
jmp 0x439e48
mov edx, esi
jmp 0x439e48
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 0x439e37
xor esi, esi
xor edx, edx
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 0x439eea
push 0x401
lea ecx, [esp + 0x234]
push ecx
push eax
mov eax, dword [esp + 0x1c]
push dword [eax + 0x44c]
mov eax, dword [eax + 0x44]
add eax, 0x10
push eax
call fcn.00456550
add esp, 4
push eax
mov eax, dword [esp + 0x24]
mov eax, dword [eax + 0x44]
push dword [eax]
call fcn.0040cfa0
add esp, 0x18
sub eax, 0
je 0x439eca
sub eax, 1
je 0x43a3a7
sub eax, 1
jne 0x439ed4
lea eax, [esp + 0x230]
mov dword [esp + 0x30], eax
jmp 0x439ed6
mov eax, dword [esp + 0x18]
mov dword [esp + 0x30], eax
jmp 0x439ed6
xor eax, eax
mov dword [esp + 0x28], esi
mov esi, ebx
mov dword [esp + 0x24], esi
test eax, eax
jne 0x439f96
jmp 0x439ef6
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 + 0x128]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x439f49
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004063e0
push eax
push str.getsockname___failed:__s
push ebp
call fcn.00417b80
add esp, 0x18
jmp 0x43a3ab
mov ax, word [esp + 0x3c]
cmp ax, 0x17
je 0x439f5d
lea ecx, [esp + 0x40]
movzx eax, ax
jmp 0x439f66
lea ecx, [esp + 0x44]
mov eax, 0x17
push 0x401
lea edx, [esp + 0x234]
movzx eax, ax
push edx
push ecx
push eax
call sub.WS2_32.dll_inet_ntop
test eax, eax
je 0x43a3ab
lea eax, [esp + 0x230]
xor cl, cl
mov dword [esp + 0x30], eax
mov byte [esp + 0x17], cl
lea ecx, [esp + 0x34]
push ecx
push 0
push 0
push eax
push ebp
call fcn.00420cf0
add esp, 0x14
cmp eax, 1
jne 0x439fbc
lea eax, [esp + 0x34]
push eax
push ebp
call fcn.0040d260
add esp, 8
mov eax, dword [esp + 0x34]
test eax, eax
je 0x43a394
mov ebx, dword [eax]
push eax
push ebp
call fcn.00421280
add esp, 8
test ebx, ebx
je 0x43a394
mov esi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
lea eax, [esp + 0x20]
push eax
mov eax, dword [esp + 0x14]
movzx eax, byte [eax + 0x457]
push eax
push 0
push ebx
push ebp
call fcn.00447d00
add esp, 0x14
test eax, eax
je 0x43a033
call esi
mov ebx, dword [ebx + 0x1c]
test ebx, ebx
jne 0x439fe2
push 0x100
lea ecx, [esp + 0x134]
push ecx
push eax
call fcn.004063e0
push eax
push str.socket_failure:__s
push ebp
call fcn.00417b80
add esp, 0x18
jmp 0x43a3a7
push dword [ebx + 0x10]
lea eax, [esp + 0x40]
push dword [ebx + 0x18]
push eax
call sub.VCRUNTIME140.dll_memcpy
mov eax, dword [ebx + 0x10]
add esp, 0xc
mov dword [esp + 0x1c], eax
mov eax, dword [esp + 0x28]
movzx esi, ax
cmp ax, word [esp + 0x24]
ja 0x43a384
mov eax, dword [sym.imp.WS2_32.dll_htons]
push esi
call eax
push dword [esp + 0x1c]
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 0x43a148
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov cl, byte [esp + 0x17]
test cl, cl
je 0x43a102
cmp eax, 0x2741
jne 0x43a102
push 0x100
lea eax, [esp + 0x134]
push eax
push 0x2741
call fcn.004063e0
push eax
movzx eax, si
push eax
push str.bind_port_hu__on_non_local_address_failed:__s
push ebp
call fcn.00417af0
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 + 0x128]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x43a173
mov eax, dword [esp + 0x28]
xor cl, cl
movzx esi, ax
mov byte [esp + 0x17], cl
jmp 0x43a05f
cmp eax, 0x2740
je 0x43a10e
cmp eax, 0xd
jne 0x43a11d
inc esi
mov byte [esp + 0x17], cl
movzx eax, si
mov esi, eax
jmp 0x43a054
push 0x100
lea ecx, [esp + 0x134]
push ecx
push eax
call fcn.004063e0
push eax
movzx eax, si
push eax
push str.bind_port_hu__failed:__s
push ebp
call fcn.00417b80
add esp, 0x1c
jmp 0x43a3a7
cmp si, word [esp + 0x24]
ja 0x43a384
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 0x43a1a0
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004063e0
push eax
push str.getsockname___failed:__s
push ebp
call fcn.00417b80
add esp, 0x18
jmp 0x43a3a7
push 1
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_listen]
test eax, eax
je 0x43a1c8
push 0x100
lea eax, [esp + 0x134]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
jmp 0x43a019
push 0x2f
lea eax, [esp + 0xc0]
push eax
push ebx
call fcn.00421440
mov eax, dword [esp + 0x1c]
add esp, 0xc
cmp byte [eax + 0x1da], 0
jne 0x43a1f8
cmp byte [eax + 0x1d4], 0
je 0x43a1f8
mov byte [eax + 0x1da], 1
cmp edi, 2
je 0x43a25a
mov esi, dword [sym.imp.WS2_32.dll_ntohs]
mov cx, word [esp + 0x3c]
nop dword [eax + eax]
cmp byte [eax + 0x1da], 0
jne 0x43a21d
test edi, edi
je 0x43a254
cmp edi, 1
jne 0x43a228
cmp cx, 2
jne 0x43a254
movzx eax, cx
sub eax, 2
je 0x43a235
sub eax, 0x15
jne 0x43a250
push dword [esp + 0x3e]
call esi
movzx ebx, ax
test edi, edi
je 0x43a32e
cmp edi, 1
je 0x43a29a
mov cx, word [esp + 0x3c]
mov eax, dword [esp + 0x10]
inc edi
cmp edi, 2
jne 0x43a210
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.00448060
mov esi, eax
add esp, 0x10
test esi, esi
jne 0x43a3b0
mov eax, dword [ebp + 0x18]
mov dword [esp + 0x20], 0xffffffff
mov byte [eax + 0x41e], 0x1c
jmp 0x43a3ba
lea edx, [esp + 0xec]
mov ebp, 0x2c
lea esi, [esp + 0xbc]
nop dword [eax]
mov cl, byte [esi]
test cl, cl
je 0x43a2c7
cmp cl, 0x2e
movzx eax, cl
cmove eax, ebp
mov byte [edx], al
inc edx
add esi, 1
jne 0x43a2b0
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.0041cc10
mov ebx, dword [esp + 0x40]
lea eax, [esp + 0x100]
mov ebp, dword [esp + 0x4c]
push eax
push str.PORT
push str._s__s
push ebx
push ebp
call fcn.00454df0
mov esi, eax
add esp, 0x28
test esi, esi
je 0x43a25e
push esi
call fcn.00405ed0
push eax
push str.Failure_sending_PORT_command:__s
push ebp
call fcn.00417b80
mov ebx, dword [esp + 0x20]
add esp, 0x10
jmp 0x43a3b0
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.00454df0
mov esi, eax
add esp, 0x1c
test esi, esi
je 0x43a25e
push esi
call fcn.00405ed0
push eax
push str.Failure_sending_EPRT_command:__s
push ebp
call fcn.00417b80
mov ebx, dword [esp + 0x20]
add esp, 0x10
jmp 0x43a3b0
push str.bind___failed__we_ran_out_of_ports
push ebp
call fcn.00417b80
add esp, 8
jmp 0x43a3a7
mov eax, dword [esp + 0x30]
push eax
push str.failed_to_resolve_the_address_provided_to_PORT:__s
push ebp
call fcn.00417b80
add esp, 0xc
mov ebx, dword [esp + 0x10]
mov esi, 0x1e
mov eax, dword [ebp + 0x18]
mov byte [eax + 0x41e], 0
mov eax, dword [esp + 0x20]
cmp eax, 0xffffffff
je 0x43a3ce
push eax
push ebx
push ebp
call fcn.00447d70
add esp, 0xc
push dword [esp + 0x18]
call dword [0x4e6ca8]
mov ecx, dword [esp + 0x638]
add esp, 4
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.00401ebc
add esp, 0x628
ret