Function at 0x550c30
Capabilities:
Convert ip address from string
Get local ipv4 addresses
Get socket information

Disassembly:
sub esp, 0x660
mov eax, dword [0x7f9c40]
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 + 0x28], eax
add eax, 0x300
mov dword [esp + 0x38], eax
lea eax, [esp + 0xc9]
push eax
mov dword [esp + 0x20], 0x1e
mov dword [esp + 0x28], 0xffffffff
mov byte [esp + 0xcc], 0
call fcn.006e1410
mov ecx, dword [edi + 0x574]
add esp, 0xc
xor ebp, ebp
mov dword [esp + 0x28], ecx
mov dword [esp + 0x38], 0
mov dword [esp + 0x2c], 0
mov dword [esp + 0x24], 0
mov byte [esp + 0x13], 1
mov dword [esp + 0x34], 0
test ecx, ecx
je 0x550eaa
mov edx, ecx
lea esi, [edx + 1]
mov al, byte [edx]
inc edx
test al, al
jne 0x550cd4
sub edx, esi
cmp edx, 1
jbe 0x550eaa
mov al, byte [ecx]
cmp al, 0x5b
jne 0x550d17
lea ebp, [ecx + 1]
mov esi, ebp
push 0x5d
push esi
call fcn.006e2000
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 0x550d4f
cmp al, 0x3a
je 0x550d57
push 0x3a
push ecx
call fcn.006e2000
mov esi, eax
add esp, 8
mov eax, dword [esp + 0x28]
mov ebp, esi
mov dword [esp + 0x34], eax
test ebp, ebp
je 0x550db0
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 0x550dc3
push 0x3a
push ecx
call fcn.006e2000
add esp, 8
mov dword [esp + 0x28], eax
xor esi, esi
xor edx, edx
test eax, eax
je 0x550dc3
push 0xa
push edx
inc eax
push eax
call fcn.006f5676
push eax
call fcn.0052ef20
push 0x2d
push dword [esp + 0x3c]
movzx esi, ax
call fcn.006e2000
add esp, 0x18
test eax, eax
je 0x550dac
push 0xa
inc eax
push 0
push eax
call fcn.006f5676
push eax
call fcn.0052ef20
add esp, 0x10
movzx edx, ax
jmp 0x550dc3
mov edx, esi
jmp 0x550dc3
mov ebp, eax
lea ecx, [ebp + 1]
mov al, byte [ebp]
inc ebp
test al, al
jne 0x550db5
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 + 0x28], eax
test ebp, ebp
je 0x550e98
cmp ebp, 0x32
jae 0x5513f4
push ebp
push dword [esp + 0x38]
lea eax, [esp + 0xf8]
push eax
call fcn.006e0e90
mov esi, dword [esp + 0x2c]
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 + 0x3d4]
add eax, 0x10
push eax
call fcn.00564420
add esp, 4
push eax
mov eax, dword [esi + 0x24]
push dword [eax]
call sym.ClientofCSP.exe_protected_virtual:_unsigned_int___thiscall_DuiLib::CWindowWnd::GetClassStyle_void_const
add esp, 0x18
sub eax, 0
je 0x550e6d
sub eax, 1
je 0x5513f4
sub eax, 1
jne 0x550e76
lea esi, [esp + 0x268]
jmp 0x550e78
lea esi, [esp + 0xf0]
jmp 0x550e78
xor esi, esi
mov eax, dword [esp + 0x28]
movzx ebp, ax
mov eax, dword [esp + 0x24]
mov dword [esp + 0x2c], ebp
movzx ebp, ax
mov dword [esp + 0x24], ebp
test esi, esi
jne 0x550f46
jmp 0x550eaa
movzx ecx, ax
mov eax, dword [esp + 0x24]
movzx eax, ax
mov dword [esp + 0x2c], ecx
mov dword [esp + 0x24], eax
lea eax, [esp + 0x18]
mov dword [esp + 0x18], 0x80
push eax
lea eax, [esp + 0x44]
push eax
mov eax, dword [esp + 0x28]
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
je 0x550efd
push 0x100
lea eax, [esp + 0x16c]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.00540440
push eax
push str.getsockname___failed:__s
push edi
call fcn.0052b8c0
add esp, 0x18
jmp 0x5513f4
mov ax, word [esp + 0x40]
cmp ax, 0x17
je 0x550f11
lea ecx, [esp + 0x44]
movzx eax, ax
jmp 0x550f1a
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 0x5513f4
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.00537c40
add esp, 0x14
cmp eax, 1
jne 0x550f6c
lea eax, [esp + 0x38]
push eax
push edi
call fcn.0051ee80
add esp, 8
mov eax, dword [esp + 0x38]
test eax, eax
je 0x5513e5
mov ebp, dword [eax]
push eax
push edi
call fcn.005381c0
add esp, 8
test ebp, ebp
je 0x5513e5
mov esi, dword [sym.imp.WS2_32.dll_WSAGetLastError]
lea eax, [esp + 0x1c]
push eax
mov eax, dword [esp + 0x24]
movzx eax, byte [eax + 0x3de]
push eax
push 0
push ebp
push edi
call fcn.00532580
add esp, 0x14
test eax, eax
je 0x550fe3
call esi
mov ebp, dword [ebp + 0x1c]
test ebp, ebp
jne 0x550f92
push 0x100
lea ecx, [esp + 0x16c]
push ecx
push eax
call fcn.00540440
push eax
push str.socket_failure:__s
push edi
call fcn.0052b8c0
add esp, 0x18
jmp 0x5513f4
mov eax, dword [edi + 0x18]
test eax, eax
je 0x550ffa
movzx eax, byte [eax + 0x3ae]
mov eax, dword [eax*4 + 0x736738]
jmp 0x550fff
mov eax, 0x73690c
push eax
push str.__s__ftp_state_use_port____opened_socket
push edi
call fcn.0052bb00
push dword [ebp + 0x10]
lea eax, [esp + 0x50]
push dword [ebp + 0x18]
push eax
call fcn.006e0e90
mov eax, dword [ebp + 0x10]
add esp, 0x18
mov dword [esp + 0x18], eax
mov eax, dword [esp + 0x2c]
movzx esi, ax
cmp ax, word [esp + 0x24]
ja 0x5513d5
mov eax, dword [sym.imp.WS2_32.dll_htons]
push esi
call eax
push dword [esp + 0x18]
mov word [esp + 0x46], ax
lea eax, [esp + 0x44]
push eax
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_bind]
test eax, eax
je 0x551120
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov cl, byte [esp + 0x13]
test cl, cl
je 0x5510da
cmp eax, 0x2741
jne 0x5510da
push 0x100
lea eax, [esp + 0x16c]
push eax
push 0x2741
call fcn.00540440
push eax
movzx eax, si
push eax
push str.bind_port_hu__on_non_local_address_failed:__s
push edi
call fcn.0052b990
add esp, 0x1c
mov dword [esp + 0x18], 0x80
lea eax, [esp + 0x18]
push eax
lea eax, [esp + 0x44]
push eax
mov eax, dword [esp + 0x28]
push dword [eax + 0x1a0]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x550ed0
mov eax, dword [esp + 0x2c]
movzx esi, ax
xor al, al
mov byte [esp + 0x13], al
jmp 0x551037
cmp eax, 0x2740
je 0x5510e6
cmp eax, 0xd
jne 0x5510f5
inc esi
mov byte [esp + 0x13], cl
movzx eax, si
mov esi, eax
jmp 0x55102c
push 0x100
lea ecx, [esp + 0x16c]
push ecx
push eax
call fcn.00540440
push eax
movzx eax, si
push eax
push str.bind_port_hu__failed:__s
push edi
call fcn.0052b8c0
add esp, 0x1c
jmp 0x5513f4
lea eax, [esp + 0x18]
mov dword [esp + 0x18], 0x80
push eax
lea eax, [esp + 0x44]
push eax
push dword [esp + 0x24]
call dword [sym.imp.WS2_32.dll_getsockname]
test eax, eax
jne 0x550ed0
mov eax, dword [edi + 0x18]
test eax, eax
je 0x55115b
movzx eax, byte [eax + 0x3ae]
mov eax, dword [eax*4 + 0x736738]
jmp 0x551160
mov eax, 0x73690c
movzx esi, si
push esi
push eax
push str.__s__ftp_state_use_port____socket_bound_to_port__d
push edi
call fcn.0052bb00
add esp, 0x10
push 1
push dword [esp + 0x20]
call dword [sym.imp.WS2_32.dll_listen]
test eax, eax
je 0x5511b0
push 0x100
lea eax, [esp + 0x16c]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.00540440
push eax
push str.socket_failure:__s
push edi
call fcn.0052b8c0
add esp, 0x18
jmp 0x5513f4
mov eax, dword [edi + 0x18]
test eax, eax
je 0x5511c7
movzx eax, byte [eax + 0x3ae]
mov eax, dword [eax*4 + 0x736738]
jmp 0x5511cc
mov eax, 0x73690c
push esi
push eax
push str.__s__ftp_state_use_port____listening_on__d
push edi
call fcn.0052bb00
push 0x2f
lea eax, [esp + 0xd4]
push eax
push ebp
call fcn.00537bf0
mov ebp, dword [esp + 0x3c]
add esp, 0x1c
cmp byte [ebp + 0x289], 0
jne 0x551209
cmp byte [ebp + 0x284], 0
je 0x551209
mov byte [ebp + 0x289], 1
lea eax, [esp + 0x1c]
push eax
push 1
push ebp
push edi
call fcn.005321d0
mov ecx, eax
add esp, 0x10
mov dword [esp + 0x14], ecx
test ecx, ecx
jne 0x5513f4
mov dword [esp + 0x1c], 0xffffffff
cmp ebx, 2
je 0x55128e
mov esi, dword [sym.imp.WS2_32.dll_ntohs]
mov cx, word [esp + 0x40]
cmp byte [ebp + 0x289], 0
jne 0x55124d
test ebx, ebx
je 0x551284
cmp ebx, 1
jne 0x551258
cmp cx, 2
jne 0x551284
movzx eax, cx
sub eax, 2
je 0x551265
sub eax, 0x15
jne 0x551284
push dword [esp + 0x42]
call esi
movzx ebp, ax
test ebx, ebx
je 0x551355
cmp ebx, 1
je 0x5512c4
mov cx, word [esp + 0x40]
mov ebp, dword [esp + 0x20]
inc ebx
cmp ebx, 2
jne 0x551240
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 + 0x3ae]
cmp al, 0x1c
je 0x5513c8
test esi, esi
je 0x5513ab
movzx eax, al
mov eax, dword [eax*4 + 0x736738]
jmp 0x5513b0
lea edx, [esp + 0x124]
mov edi, 0x2c
lea esi, [esp + 0xc0]
mov cl, byte [esi]
test cl, cl
je 0x5512ee
cmp cl, 0x2e
movzx eax, cl
cmove eax, edi
mov byte [edx], al
inc edx
add esi, 1
jne 0x5512d7
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.005354a0
mov esi, dword [esp + 0x44]
lea eax, [esp + 0x138]
mov edi, dword [esp + 0x50]
push eax
push 0x7367c9
push 0x7361cc
push esi
push edi
call fcn.00568430
mov ecx, eax
add esp, 0x28
mov dword [esp + 0x14], ecx
test ecx, ecx
je 0x551292
push ecx
call fcn.00540530
push eax
push str.Failure_sending_PORT_command:__s
push edi
call fcn.0052b8c0
add esp, 0x10
jmp 0x5513f4
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.00568430
mov ecx, eax
add esp, 0x1c
mov dword [esp + 0x14], ecx
test ecx, ecx
je 0x551292
push ecx
call fcn.00540530
push eax
push str.Failure_sending_EPRT_command:__s
push edi
call fcn.0052b8c0
add esp, 0x10
jmp 0x5513f4
mov eax, 0x73690c
push str.PORT
push eax
push str.__s_______s_
push edi
call fcn.0052bb00
mov ecx, dword [esp + 0x24]
add esp, 0x10
mov byte [esi + 0x3ae], 0x1c
test ecx, ecx
je 0x551435
jmp 0x5513f4
push str.bind___failed__we_ran_out_of_ports
push edi
call fcn.0052b8c0
add esp, 8
jmp 0x5513f4
push esi
push str.failed_to_resolve_the_address_provided_to_PORT:__s
push edi
call fcn.0052b8c0
add esp, 0xc
mov esi, dword [edi + 0x18]
mov al, byte [esi + 0x3ae]
test al, al
je 0x55142a
test esi, esi
je 0x551411
movzx eax, al
mov eax, dword [eax*4 + 0x736738]
jmp 0x551416
mov eax, 0x73690c
push str.STOP
push eax
push str.__s_______s_
push edi
call fcn.0052bb00
add esp, 0x10
mov ecx, dword [esp + 0x14]
mov byte [esi + 0x3ae], 0
mov eax, dword [esp + 0x1c]
cmp eax, 0xffffffff
je 0x551452
push eax
push dword [esp + 0x24]
push edi
call fcn.00532550
mov eax, dword [esp + 0x20]
add esp, 0xc
jmp 0x551454
mov eax, ecx
mov ecx, dword [esp + 0x66c]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.006def69
add esp, 0x660
ret