Extracting IP address from a character array returned by ESP8266 module

Projects Programming
5

I have managed to modify it as I needed.

The new function reads as below...

void scantext(char* tag, char* value)
{
  char* label;
  char* firstquote;
  char* secondquote;
  char lengthofvalue;
  label=strstr(incoming,tag);
  if (label)
  {
    firstquote=strstr(label+1,"\"");   
    secondquote=strstr(firstquote+1,"\"");
    lengthofvalue=secondquote-firstquote-1;
    strncpy(value,firstquote+1,lengthofvalue);
    value[lengthofvalue]='\0';
   }
  else
  {
    strcpy(value,"NOT FOUND");
  }
}

The calling code for it defines the tag and value char arrays, sets tag to what I am looking for and receives the value, code snippet as below

char tag[10];
char value[25];

strcpy(tag,"STAIP");
Serial.print("Tag "); Serial.print(tag);
scantext(tag,value);
Serial.print(" Value = "); Serial.println(value);

setting tag to STAIP returns this
Tag STAIP Value = 192.168.1.117

setting tag to STAMAC returns
Tag STAMAC Value = 5c:cf:7f:65:fa:00

and setting it to TEST (which is not present) returns
Tag TEST Value = NOT FOUND

Thank you both for your assistance. I can get on with writing the rest of the code now. It's a PV energy monitor which monitors PV output, mains import/export and heater diverted power with current transformers and the Open Energy Monitor library then uploads that data every minute to thingspeak via wifi. It also displays the values on a 4 line LCD display.