Issue with conversion of string to ip address

Projects Programming
1

Dear all,
I am working on a module where I am using Simcom A7672S GSM module.
When I am running command to get the ip address of the GSM module, I am getting correct ip address inform of string.
But when I am trying to convert that string to IP address I am getting not proper output. Not getting last octate.
Here is the code which I have written.

if (ipstat) {
        Serial.println(str);
        i = str.indexOf(",");
        str = str.substring(i + 1);
        Serial.println(str);
        ip.fromString(str);
      }

Here what is I am getting in output.

19:51:05.652 -> +CGPADDR: 1,10.3.85.36
19:51:05.652 -> 10.3.85.36
19:51:05.652 -> OK
19:51:05.652 -> OK
19:51:05.652 -> 10.3.85.0

When I am printing ip using

Serial.println(ip);

I am getting 10.3.85.0
Where in output I should get 10.3.85.36

let me know if there is any issue with code.

2

Did you manage to successfully do this with IDE 1.x ? But now it doesn't work in IDE 2.x ?

You posted your question in the forum section for IDE 2.x questions.

Let me know if you want to move it somewhere else.

3

Thank you for your quick response.
It's my mistake that I posted it in IDE 2.X questions, I am sorry for that.
I got the solution.
String was new line terminated, where it should be null character terminated.
I have changed the code and now it's working.
I posted the question because I was working on this part for more than 2 hours, tried all possible ways to solve it.

I am adding corrected code.

        Serial.println(str);
        i = str.length();
        str[i-1]= '\0';
        i = str.indexOf(",");
        str = str.substring(i + 1);
        Serial.println(str);
        ip.fromString(str);
4

That doesn't sound right. You don't need to null-terminate String type, or use any other terminator. String type maintains a separate length attribute so that no termination is required.

I have decided I will move your topic to the Programming section, since you no longer care.