I have the following Arduino code for configuring a wifi connection through a simple webpage:
char* ssid;. Later I read a value from a SPIFFS config file where
q_ssid is declared as a string and successfully populated from the file:
strncpy(ssid, q_ssid.c_str(), 10);
In the line above, I am limiting it to exactly 10 as that is the length of my wifi AP name that this connects to. If I change the initial
char ssid;, all works well, but SSIDs can have varying names, and if I do not use 10 chars, then the trailing spaces prevent connection in the statement
On the web client handler that reads in values from the user, I use this:
String q_ssid = server.arg("ssid"); strncpy(ssid, q_ssid.c_str(), 10 );
How can I dynamically assign the size of
char* ssid; so that it can be used with the correct number of characters for the AP name that the user has stored from the webpage?
Any help is greatly appreciated.