Function at 0x5304d0
Capabilities:
Convert ip address from string
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x658
mov eax, dword [0x6d5ec0]
xor eax, esp
mov dword [esp + 0x654], eax
push ebx
mov ebx, dword [esp + 0x664]
push ebp
push esi
push edi
mov edi, dword [esp + 0x66c]
push 0x2e
push 0
mov dword [esp + 0x24], 0xffffffff
mov eax, dword [edi + 0x18]
mov dword [esp + 0x28], eax
add eax, 0x430
mov dword [esp + 0x34], eax
lea eax, [esp + 0xc1]
push eax
mov byte [esp + 0xc4], 0
call fcn.006213c0
mov ecx, dword [edi + 0x564]
add esp, 0xc
xor ebp, ebp
mov dword [esp + 0x14], ecx
mov dword [esp + 0x34], 0
mov dword [esp + 0x28], 0
mov dword [esp + 0x24], 0
mov byte [esp + 0x13], 1
mov dword [esp + 0x30], 0
test ecx, ecx
je 0x530745
mov edx, ecx
lea esi, [edx + 1]
mov al, byte [edx]
inc edx
test al, al
jne 0x530568
sub edx, esi
cmp edx, 1
jbe 0x530745
mov al, byte [ecx]
cmp al, 0x5b
jne 0x5305ab
lea ebp, [ecx + 1]
mov esi, ebp
push 0x5d
push esi
call fcn.00620ca0
mov ecx, eax
add esp, 8
xor eax, eax
test ecx, ecx
cmove ebp, eax
mov eax, ecx
mov dword [esp + 0x30], ebp
sub eax, esi
mov ebp, ecx
neg ebp
sbb ebp, ebp
and ebp, eax
jmp 0x5305e3
cmp al, 0x3a
je 0x5305eb
push 0x3a
push ecx
call fcn.00620ca0
mov esi, eax
add esp, 8
mov eax, dword [esp + 0x14]
mov ebp, esi
mov dword [esp + 0x30], eax
test ebp, ebp
je 0x530644
lea ecx, [esp + 0x40]
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 0x53065e
push 0x3a
push ecx
call fcn.00620ca0
add esp, 8
mov dword [esp + 0x14], eax
xor esi, esi
xor edx, edx
test eax, eax
je 0x53065e
push 0xa
push edx
inc eax
push eax
call fcn.0062c558
push eax
call fcn.0050b1a0
push 0x2d
push dword [esp + 0x28]
movzx esi, ax
call fcn.00620ca0
add esp, 0x18
test eax, eax
je 0x530640
push 0xa
inc eax
push 0
push eax
call fcn.0062c558
push eax
call fcn.0050b1a0
add esp, 0x10
movzx edx, ax
jmp 0x53065e
mov edx, esi
jmp 0x53065e
mov ebp, eax
lea ecx, [ebp + 1]
nop dword [eax]
mov al, byte [ebp]
inc ebp
test al, al
jne 0x530650
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 + 0x24], eax
cmp si, dx
movzx eax, si
cmovbe ecx, eax
movzx eax, cx
mov dword [esp + 0x14], eax
test ebp, ebp
je 0x530733
cmp ebp, 0x32
jae 0x530c89
push ebp
push dword [esp + 0x34]
lea eax, [esp + 0xf0]
push eax
call fcn.00620e40
mov esi, dword [esp + 0x2c]
lea eax, [esp + 0x26c]
add esp, 0xc
mov byte [esp + ebp + 0xe8], 0
push 0x401
push eax
lea eax, [esp + 0xf0]
push eax
mov eax, dword [esi + 0x24]
push dword [esi + 0x508]
add eax, 0x10
push eax
call fcn.0053dd70
add esp, 4
push eax
mov eax, dword [esi + 0x24]
push dword [eax]
call fcn.0040f370
add esp, 0x18
sub eax, 0
je 0x530708
sub eax, 1
je 0x530c89
sub eax, 1
jne 0x530711
lea esi, [esp + 0x260]
jmp 0x530713
lea esi, [esp + 0xe8]
jmp 0x530713
xor esi, esi
mov eax, dword [esp + 0x14]
movzx ebp, ax
mov eax, dword [esp + 0x24]
mov dword [esp + 0x28], ebp
movzx ebp, ax
mov dword [esp + 0x24], ebp
test esi, esi
jne 0x5307e1
jmp 0x530745
movzx ecx, ax
mov eax, dword [esp + 0x24]
movzx eax, ax
mov dword [esp + 0x28], ecx
mov dword [esp + 0x24], eax
lea eax, [esp + 0x18]
mov dword [esp + 0x18], 0x80
push eax
lea eax, [esp + 0x3c]
push eax
mov eax, dword [esp + 0x28]
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x530798
push 0x100
lea eax, [esp + 0x164]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004f1680
push eax
push str.getsockname___failed:__s
push edi
call fcn.00507ab0
add esp, 0x18
jmp 0x530c89
mov ax, word [esp + 0x38]
cmp ax, 0x17
je 0x5307ac
lea ecx, [esp + 0x3c]
movzx eax, ax
jmp 0x5307b5
lea ecx, [esp + 0x40]
mov eax, 0x17
push 0x401
lea edx, [esp + 0x264]
movzx eax, ax
push edx
push ecx
push eax
call sub.WS2_32.dll_inet_ntop
test eax, eax
je 0x530c89
xor al, al
lea esi, [esp + 0x260]
mov byte [esp + 0x13], al
lea eax, [esp + 0x34]
push eax
push 0
push 0
push esi
push edi
call fcn.00514830
add esp, 0x14
cmp eax, 1
jne 0x530807
lea eax, [esp + 0x34]
push eax
push edi
call fcn.004fb180
add esp, 8
mov eax, dword [esp + 0x34]
test eax, eax
je 0x530c7a
mov ebp, dword [eax]
push eax
push edi
call fcn.00514da0
add esp, 8
test ebp, ebp
je 0x530c7a
mov esi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
nop dword [eax]
lea eax, [esp + 0x1c]
push eax
mov eax, dword [esp + 0x24]
movzx eax, byte [eax + 0x512]
push eax
push 0
push ebp
push edi
call fcn.005100d0
add esp, 0x14
test eax, eax
je 0x530881
call esi
mov ebp, dword [ebp + 0x1c]
test ebp, ebp
jne 0x530830
push 0x100
lea ecx, [esp + 0x164]
push ecx
push eax
call fcn.004f1680
push eax
push str.socket_failure:__s
push edi
call fcn.00507ab0
add esp, 0x18
jmp 0x530c89
mov eax, dword [edi + 0x18]
test eax, eax
je 0x530898
movzx eax, byte [eax + 0x4de]
mov eax, dword [eax*4 + 0x680d78]
jmp 0x53089d
mov eax, 0x680ffc
push eax
push str.__s__ftp_state_use_port____opened_socket
push edi
call fcn.00507cf0
push dword [ebp + 0x10]
lea eax, [esp + 0x48]
push dword [ebp + 0x18]
push eax
call fcn.00620e40
mov eax, dword [ebp + 0x10]
add esp, 0x18
mov dword [esp + 0x18], eax
mov eax, dword [esp + 0x28]
movzx esi, ax
cmp ax, word [esp + 0x24]
ja 0x530c6a
mov eax, dword [sym.imp.WS2_32.dll_htons]
push esi
call eax
push dword [esp + 0x18]
mov word [esp + 0x3e], ax
lea eax, [esp + 0x3c]
push eax
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_bind]
test eax, eax
je 0x5309be
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov cl, byte [esp + 0x13]
test cl, cl
je 0x530978
cmp eax, 0x2741
jne 0x530978
push 0x100
lea eax, [esp + 0x164]
push eax
push 0x2741
call fcn.004f1680
push eax
movzx eax, si
push eax
push str.bind_port_hu__on_non_local_address_failed:__s
push edi
call fcn.00507b80
add esp, 0x1c
mov dword [esp + 0x18], 0x80
lea eax, [esp + 0x18]
push eax
lea eax, [esp + 0x3c]
push eax
mov eax, dword [esp + 0x28]
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x53076b
mov eax, dword [esp + 0x28]
movzx esi, ax
xor al, al
mov byte [esp + 0x13], al
jmp 0x5308d5
cmp eax, 0x2740
je 0x530984
cmp eax, 0xd
jne 0x530993
inc esi
mov byte [esp + 0x13], cl
movzx eax, si
mov esi, eax
jmp 0x5308ca
push 0x100
lea ecx, [esp + 0x164]
push ecx
push eax
call fcn.004f1680
push eax
movzx eax, si
push eax
push str.bind_port_hu__failed:__s
push edi
call fcn.00507ab0
add esp, 0x1c
jmp 0x530c89
lea eax, [esp + 0x18]
mov dword [esp + 0x18], 0x80
push eax
lea eax, [esp + 0x3c]
push eax
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x53076b
mov eax, dword [edi + 0x18]
test eax, eax
je 0x5309f9
movzx eax, byte [eax + 0x4de]
mov eax, dword [eax*4 + 0x680d78]
jmp 0x5309fe
mov eax, 0x680ffc
movzx esi, si
push esi
push eax
push str.__s__ftp_state_use_port____socket_bound_to_port__d
push edi
call fcn.00507cf0
add esp, 0x10
push 1
push dword [esp + 0x20]
call dword [sym.imp.WS2_32.dll_listen]
test eax, eax
je 0x530a4e
push 0x100
lea eax, [esp + 0x164]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004f1680
push eax
push str.socket_failure:__s
push edi
call fcn.00507ab0
add esp, 0x18
jmp 0x530c89
mov eax, dword [edi + 0x18]
test eax, eax
je 0x530a65
movzx eax, byte [eax + 0x4de]
mov eax, dword [eax*4 + 0x680d78]
jmp 0x530a6a
mov eax, 0x680ffc
push esi
push eax
push str.__s__ftp_state_use_port____listening_on__d
push edi
call fcn.00507cf0
push 0x2f
lea eax, [esp + 0xcc]
push eax
push ebp
call fcn.005147e0
mov esi, dword [esp + 0x3c]
add esp, 0x1c
cmp byte [esi + 0x299], 0
jne 0x530aa7
cmp byte [esi + 0x294], 0
je 0x530aa7
mov byte [esi + 0x299], 1
lea eax, [esp + 0x1c]
push eax
push 1
push esi
push edi
call fcn.0050fd20
mov ebp, eax
add esp, 0x10
mov dword [esp + 0x14], ebp
test ebp, ebp
jne 0x530c8e
mov dword [esp + 0x1c], 0xffffffff
cmp ebx, 2
je 0x530b2e
mov ebp, dword [sym.imp.WS2_32.dll_ntohs]
mov cx, word [esp + 0x38]
nop
cmp byte [esi + 0x299], 0
jne 0x530aed
test ebx, ebx
je 0x530b24
cmp ebx, 1
jne 0x530af8
cmp cx, 2
jne 0x530b24
movzx eax, cx
sub eax, 2
je 0x530b05
sub eax, 0x15
jne 0x530b24
push dword [esp + 0x3a]
call ebp
movzx esi, ax
test ebx, ebx
je 0x530bf2
cmp ebx, 1
je 0x530b60
mov cx, word [esp + 0x38]
mov esi, dword [esp + 0x20]
inc ebx
cmp ebx, 2
jne 0x530ae0
mov ebp, dword [esp + 0x14]
mov esi, dword [esp + 0x2c]
mov dword [esi + 0xa0], ebx
mov esi, dword [edi + 0x18]
mov al, byte [esi + 0x4de]
cmp al, 0x1c
je 0x530c5d
test esi, esi
je 0x530c44
movzx eax, al
mov eax, dword [eax*4 + 0x680d78]
jmp 0x530c49
mov al, byte [esp + 0xb8]
lea edx, [esp + 0x11c]
test al, al
je 0x530b93
lea ecx, [esp + 0xb8]
mov ebp, edx
sub ecx, ebp
nop dword [eax]
cmp al, 0x2e
mov al, 0x2c
je 0x530b89
mov al, byte [edx + ecx]
mov byte [edx], al
inc edx
mov al, byte [ecx + edx]
test al, al
jne 0x530b80
movzx ecx, si
movzx eax, cl
push eax
shr ecx, 8
push ecx
push str.__d__d
push 0x14
push edx
mov byte [edx], 0
call fcn.0050d3a0
mov esi, dword [esp + 0x40]
lea eax, [esp + 0x130]
push eax
push 0x680e09
push 0x6808b8
push esi
push edi
call fcn.005454c0
mov ebp, eax
add esp, 0x28
test ebp, ebp
je 0x530b32
push ebp
call fcn.004f17f0
push eax
push str.Failure_sending_PORT_command:__s
push edi
call fcn.00507ab0
add esp, 0x10
jmp 0x530c8e
movzx eax, si
mov esi, dword [esp + 0x2c]
push eax
lea eax, [esp + 0xbc]
push eax
xor eax, eax
cmp word [esp + 0x40], 2
setne al
inc eax
push eax
push str.EPRT
push str._s__d_s_hu
push esi
push edi
call fcn.005454c0
mov ebp, eax
add esp, 0x1c
test ebp, ebp
je 0x530b32
push ebp
call fcn.004f17f0
push eax
push str.Failure_sending_EPRT_command:__s
push edi
call fcn.00507ab0
add esp, 0x10
jmp 0x530c8e
mov eax, 0x680ffc
push str.PORT
push eax
push str.__s_______s_
push edi
call fcn.00507cf0
add esp, 0x10
mov byte [esi + 0x4de], 0x1c
test ebp, ebp
je 0x530ccb
jmp 0x530c8e
push str.bind___failed__we_ran_out_of_ports
push edi
call fcn.00507ab0
add esp, 8
jmp 0x530c89
push esi
push str.failed_to_resolve_the_address_provided_to_PORT:__s
push edi
call fcn.00507ab0
add esp, 0xc
mov ebp, 0x1e
mov esi, dword [edi + 0x18]
mov al, byte [esi + 0x4de]
test al, al
je 0x530cc4
test esi, esi
je 0x530cab
movzx eax, al
mov eax, dword [eax*4 + 0x680d78]
jmp 0x530cb0
mov eax, 0x680ffc
push str.STOP
push eax
push str.__s_______s_
push edi
call fcn.00507cf0
add esp, 0x10
mov byte [esi + 0x4de], 0
mov eax, dword [esp + 0x1c]
cmp eax, 0xffffffff
je 0x530ce2
push eax
push dword [esp + 0x24]
push edi
call fcn.005100a0
add esp, 0xc
mov ecx, dword [esp + 0x664]
mov eax, ebp
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.0061eb08
add esp, 0x658
ret