Function at 0x4f1a40
Capabilities:
Convert ip address from string
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x660
mov eax, dword [0x5e1040]
xor eax, esp
mov dword [esp + 0x65c], eax
push ebx
mov ebx, dword [esp + 0x66c]
push ebp
push esi
push edi
mov edi, dword [esp + 0x674]
push 0x2e
push 0
mov dword [esp + 0x44], edi
mov eax, dword [edi + 0x18]
mov dword [esp + 0x2c], eax
add eax, 0x3f0
mov dword [esp + 0x38], eax
lea eax, [esp + 0xc9]
push eax
mov dword [esp + 0x20], 0x1e
mov dword [esp + 0x2c], 0xffffffff
mov byte [esp + 0xcc], 0
call fcn.00547c40
mov ecx, dword [edi + 0x55c]
add esp, 0xc
xor ebp, ebp
mov dword [esp + 0x28], ecx
mov dword [esp + 0x38], 0
mov dword [esp + 0x2c], 0
mov dword [esp + 0x18], 0
mov byte [esp + 0x13], 1
mov dword [esp + 0x34], 0
test ecx, ecx
je 0x4f1cba
mov edx, ecx
lea esi, [edx + 1]
mov al, byte [edx]
inc edx
test al, al
jne 0x4f1ae4
sub edx, esi
cmp edx, 1
jbe 0x4f1cba
mov al, byte [ecx]
cmp al, 0x5b
jne 0x4f1b27
lea ebp, [ecx + 1]
mov esi, ebp
push 0x5d
push esi
call fcn.00548670
mov ecx, eax
add esp, 8
xor eax, eax
test ecx, ecx
cmove ebp, eax
mov eax, ecx
mov dword [esp + 0x34], ebp
sub eax, esi
mov ebp, ecx
neg ebp
sbb ebp, ebp
and ebp, eax
jmp 0x4f1b5f
cmp al, 0x3a
je 0x4f1b67
push 0x3a
push ecx
call fcn.00548670
mov esi, eax
add esp, 8
mov eax, dword [esp + 0x28]
mov ebp, esi
mov dword [esp + 0x34], eax
test ebp, ebp
je 0x4f1bc0
lea ecx, [esp + 0x48]
sub ebp, eax
push ecx
push eax
push 0x17
call dword [sym.imp.WS2_32.dll_inet_pton]
lea ecx, [eax - 1]
neg ecx
sbb ecx, ecx
and ecx, esi
xor esi, esi
xor edx, edx
test ecx, ecx
je 0x4f1bd3
push 0x3a
push ecx
call fcn.00548670
add esp, 8
mov dword [esp + 0x28], eax
xor esi, esi
xor edx, edx
test eax, eax
je 0x4f1bd3
push 0xa
push edx
inc eax
push eax
call fcn.0055ecd2
push eax
call fcn.004bbac0
push 0x2d
push dword [esp + 0x3c]
movzx esi, ax
call fcn.00548670
add esp, 0x18
test eax, eax
je 0x4f1bbc
push 0xa
inc eax
push 0
push eax
call fcn.0055ecd2
push eax
call fcn.004bbac0
add esp, 0x10
movzx edx, ax
jmp 0x4f1bd3
mov edx, esi
jmp 0x4f1bd3
mov ebp, eax
lea ecx, [ebp + 1]
mov al, byte [ebp]
inc ebp
test al, al
jne 0x4f1bc5
sub ebp, ecx
xor esi, esi
xor edx, edx
xor ecx, ecx
movzx eax, dx
cmp si, dx
cmovbe ecx, eax
movzx eax, cx
xor ecx, ecx
mov dword [esp + 0x18], eax
cmp si, dx
movzx eax, si
cmovbe ecx, eax
movzx eax, cx
mov dword [esp + 0x28], eax
test ebp, ebp
je 0x4f1ca8
cmp ebp, 0x32
jae 0x4f2214
push ebp
push dword [esp + 0x38]
lea eax, [esp + 0xf8]
push eax
call fcn.00547de0
mov esi, dword [esp + 0x30]
lea eax, [esp + 0x274]
add esp, 0xc
mov byte [esp + ebp + 0xf0], 0
push 0x401
push eax
lea eax, [esp + 0xf8]
push eax
mov eax, dword [esi + 0x24]
push dword [esi + 0x4c8]
add eax, 0x10
push eax
call fcn.0050d850
add esp, 4
push eax
mov eax, dword [esi + 0x24]
push dword [eax]
call fcn.00423070
add esp, 0x18
sub eax, 0
je 0x4f1c7d
sub eax, 1
je 0x4f2214
sub eax, 1
jne 0x4f1c86
lea esi, [esp + 0x268]
jmp 0x4f1c88
lea esi, [esp + 0xf0]
jmp 0x4f1c88
xor esi, esi
mov eax, dword [esp + 0x28]
movzx ebp, ax
mov eax, dword [esp + 0x18]
mov dword [esp + 0x2c], ebp
movzx ebp, ax
mov dword [esp + 0x18], ebp
test esi, esi
jne 0x4f1d56
jmp 0x4f1cba
movzx ecx, ax
mov eax, dword [esp + 0x18]
movzx eax, ax
mov dword [esp + 0x2c], ecx
mov dword [esp + 0x18], eax
lea eax, [esp + 0x1c]
mov dword [esp + 0x1c], 0x80
push eax
lea eax, [esp + 0x44]
push eax
mov eax, dword [esp + 0x2c]
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x4f1d0d
push 0x100
lea eax, [esp + 0x16c]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004b7fe0
push eax
push str.getsockname___failed:__s
push edi
call fcn.004ce010
add esp, 0x18
jmp 0x4f2214
mov ax, word [esp + 0x40]
cmp ax, 0x17
je 0x4f1d21
lea ecx, [esp + 0x44]
movzx eax, ax
jmp 0x4f1d2a
lea ecx, [esp + 0x48]
mov eax, 0x17
push 0x401
lea edx, [esp + 0x26c]
movzx eax, ax
push edx
push ecx
push eax
call sub.WS2_32.dll_inet_ntop
test eax, eax
je 0x4f2214
xor al, al
lea esi, [esp + 0x268]
mov byte [esp + 0x13], al
lea eax, [esp + 0x38]
push eax
push 0
push 0
push esi
push edi
call fcn.004d8280
add esp, 0x14
cmp eax, 1
jne 0x4f1d7c
lea eax, [esp + 0x38]
push eax
push edi
call fcn.004c1ca0
add esp, 8
mov eax, dword [esp + 0x38]
test eax, eax
je 0x4f2205
mov ebp, dword [eax]
push eax
push edi
call fcn.004d8810
add esp, 8
test ebp, ebp
je 0x4f2205
mov esi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
lea eax, [esp + 0x20]
push eax
mov eax, dword [esp + 0x28]
movzx eax, byte [eax + 0x4d2]
push eax
push 0
push ebp
push edi
call fcn.00502280
add esp, 0x14
test eax, eax
je 0x4f1df3
call esi
mov ebp, dword [ebp + 0x1c]
test ebp, ebp
jne 0x4f1da2
push 0x100
lea ecx, [esp + 0x16c]
push ecx
push eax
call fcn.004b7fe0
push eax
push str.socket_failure:__s
push edi
call fcn.004ce010
add esp, 0x18
jmp 0x4f2214
mov eax, dword [edi + 0x18]
test eax, eax
je 0x4f1e0a
movzx eax, byte [eax + 0x49e]
mov eax, dword [eax*4 + 0x595070]
jmp 0x4f1e0f
mov eax, 0x5952f4
push eax
push str.__s__ftp_state_use_port____opened_socket
push edi
call fcn.004ce250
push dword [ebp + 0x10]
lea eax, [esp + 0x50]
push dword [ebp + 0x18]
push eax
call fcn.00547de0
mov eax, dword [ebp + 0x10]
add esp, 0x18
mov dword [esp + 0x1c], eax
mov eax, dword [esp + 0x2c]
movzx esi, ax
cmp ax, word [esp + 0x18]
ja 0x4f21f5
mov eax, dword [sym.imp.WS2_32.dll_htons]
push esi
call eax
push dword [esp + 0x1c]
mov word [esp + 0x46], ax
lea eax, [esp + 0x44]
push eax
push dword [esp + 0x28]
call dword [sym.imp.WS2_32.dll_bind]
test eax, eax
je 0x4f1f30
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov cl, byte [esp + 0x13]
test cl, cl
je 0x4f1eea
cmp eax, 0x2741
jne 0x4f1eea
push 0x100
lea eax, [esp + 0x16c]
push eax
push 0x2741
call fcn.004b7fe0
push eax
movzx eax, si
push eax
push str.bind_port_hu__on_non_local_address_failed:__s
push edi
call fcn.004ce0e0
add esp, 0x1c
mov dword [esp + 0x1c], 0x80
lea eax, [esp + 0x1c]
push eax
lea eax, [esp + 0x44]
push eax
mov eax, dword [esp + 0x2c]
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x4f1ce0
mov eax, dword [esp + 0x2c]
movzx esi, ax
xor al, al
mov byte [esp + 0x13], al
jmp 0x4f1e47
cmp eax, 0x2740
je 0x4f1ef6
cmp eax, 0xd
jne 0x4f1f05
inc esi
mov byte [esp + 0x13], cl
movzx eax, si
mov esi, eax
jmp 0x4f1e3c
push 0x100
lea ecx, [esp + 0x16c]
push ecx
push eax
call fcn.004b7fe0
push eax
movzx eax, si
push eax
push str.bind_port_hu__failed:__s
push edi
call fcn.004ce010
add esp, 0x1c
jmp 0x4f2214
cmp si, word [esp + 0x18]
ja 0x4f21f5
lea eax, [esp + 0x1c]
mov dword [esp + 0x1c], 0x80
push eax
lea eax, [esp + 0x44]
push eax
push dword [esp + 0x28]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x4f1ce0
mov eax, dword [edi + 0x18]
test eax, eax
je 0x4f1f76
movzx eax, byte [eax + 0x49e]
mov eax, dword [eax*4 + 0x595070]
jmp 0x4f1f7b
mov eax, 0x5952f4
movzx esi, si
push esi
push eax
push str.__s__ftp_state_use_port____socket_bound_to_port__d
push edi
call fcn.004ce250
add esp, 0x10
push 1
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_listen]
test eax, eax
je 0x4f1fcb
push 0x100
lea eax, [esp + 0x16c]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004b7fe0
push eax
push str.socket_failure:__s
push edi
call fcn.004ce010
add esp, 0x18
jmp 0x4f2214
mov eax, dword [edi + 0x18]
test eax, eax
je 0x4f1fe2
movzx eax, byte [eax + 0x49e]
mov eax, dword [eax*4 + 0x595070]
jmp 0x4f1fe7
mov eax, 0x5952f4
push esi
push eax
push str.__s__ftp_state_use_port____listening_on__d
push edi
call fcn.004ce250
push 0x2f
lea eax, [esp + 0xd4]
push eax
push ebp
call fcn.004d8230
mov ebp, dword [esp + 0x40]
add esp, 0x1c
cmp byte [ebp + 0x251], 0
jne 0x4f2024
cmp byte [ebp + 0x24c], 0
je 0x4f2024
mov byte [ebp + 0x251], 1
lea eax, [esp + 0x20]
push eax
push 1
push ebp
push edi
call fcn.00502030
mov ecx, eax
add esp, 0x10
mov dword [esp + 0x14], ecx
test ecx, ecx
jne 0x4f2214
mov dword [esp + 0x20], 0xffffffff
cmp ebx, 2
je 0x4f20ae
mov esi, dword [sym.imp.WS2_32.dll_ntohs]
mov cx, word [esp + 0x40]
nop dword [eax + eax]
cmp byte [ebp + 0x251], 0
jne 0x4f206d
test ebx, ebx
je 0x4f20a4
cmp ebx, 1
jne 0x4f2078
cmp cx, 2
jne 0x4f20a4
movzx eax, cx
sub eax, 2
je 0x4f2085
sub eax, 0x15
jne 0x4f20a4
push dword [esp + 0x42]
call esi
movzx ebp, ax
test ebx, ebx
je 0x4f2175
cmp ebx, 1
je 0x4f20e4
mov cx, word [esp + 0x40]
mov ebp, dword [esp + 0x24]
inc ebx
cmp ebx, 2
jne 0x4f2060
mov ecx, dword [esp + 0x14]
mov esi, dword [esp + 0x30]
mov dword [esi + 0xa0], ebx
mov esi, dword [edi + 0x18]
mov dword [esp + 0x14], ecx
mov al, byte [esi + 0x49e]
cmp al, 0x1c
je 0x4f21e8
test esi, esi
je 0x4f21cb
movzx eax, al
mov eax, dword [eax*4 + 0x595070]
jmp 0x4f21d0
lea edx, [esp + 0x124]
mov edi, 0x2c
lea esi, [esp + 0xc0]
mov cl, byte [esi]
test cl, cl
je 0x4f210e
cmp cl, 0x2e
movzx eax, cl
cmove eax, edi
mov byte [edx], al
inc edx
add esi, 1
jne 0x4f20f7
movzx ecx, bp
movzx eax, cl
push eax
shr ecx, 8
push ecx
push str.__d__d
push 0x14
push edx
mov byte [edx], 0
call fcn.004d3340
mov esi, dword [esp + 0x44]
lea eax, [esp + 0x138]
mov edi, dword [esp + 0x50]
push eax
push 0x595101
push 0x594bb8
push esi
push edi
call fcn.0050c280
mov ecx, eax
add esp, 0x28
mov dword [esp + 0x14], ecx
test ecx, ecx
je 0x4f20b2
push ecx
call fcn.004b8150
push eax
push str.Failure_sending_PORT_command:__s
push edi
call fcn.004ce010
add esp, 0x10
jmp 0x4f2214
mov esi, dword [esp + 0x30]
movzx eax, bp
push eax
lea eax, [esp + 0xc4]
push eax
xor eax, eax
cmp word [esp + 0x48], 2
setne al
inc eax
push eax
push str.EPRT
push str._s__d_s_hu
push esi
push edi
call fcn.0050c280
mov ecx, eax
add esp, 0x1c
mov dword [esp + 0x14], ecx
test ecx, ecx
je 0x4f20b2
push ecx
call fcn.004b8150
push eax
push str.Failure_sending_EPRT_command:__s
push edi
call fcn.004ce010
add esp, 0x10
jmp 0x4f2214
mov eax, 0x5952f4
push str.PORT
push eax
push str.__s_______s_
push edi
call fcn.004ce250
mov ecx, dword [esp + 0x24]
add esp, 0x10
mov byte [esi + 0x49e], 0x1c
test ecx, ecx
je 0x4f2255
jmp 0x4f2214
push str.bind___failed__we_ran_out_of_ports
push edi
call fcn.004ce010
add esp, 8
jmp 0x4f2214
push esi
push str.failed_to_resolve_the_address_provided_to_PORT:__s
push edi
call fcn.004ce010
add esp, 0xc
mov esi, dword [edi + 0x18]
mov al, byte [esi + 0x49e]
test al, al
je 0x4f224a
test esi, esi
je 0x4f2231
movzx eax, al
mov eax, dword [eax*4 + 0x595070]
jmp 0x4f2236
mov eax, 0x5952f4
push str.STOP
push eax
push str.__s_______s_
push edi
call fcn.004ce250
add esp, 0x10
mov ecx, dword [esp + 0x14]
mov byte [esi + 0x49e], 0
mov eax, dword [esp + 0x20]
cmp eax, 0xffffffff
je 0x4f2272
push eax
push dword [esp + 0x28]
push edi
call fcn.00502250
mov eax, dword [esp + 0x20]
add esp, 0xc
jmp 0x4f2274
mov eax, ecx
mov ecx, dword [esp + 0x66c]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.004224b5
add esp, 0x660
ret