How to limit scanf function in C to print error when input is too long?

Question

I want to limit the scanf function so when I enter for example a char* array that has more then 30 characters, it will not get it and my outpu

Answer 1

You could use fgets and sscanf. With fgets you can read a little bit more than 30 characters and then check that you didn't get more than 30 characters.

Or if you really want to use scanf use it with something more than 30 like %32s.