how to detect a particular string in a file using C program

Question

I have a file and I want to read this file using C program using file operations. Then i want to take parameters from that file. Lets say nalu_type=x. So whenever i detect the s

Answer 1

This sounds a bit like homework but here's a basic strategy that should help.

You basically just want to parse the file as text. Iteratively find the index of string "nalu_type=" and then get a substring of what comes after that. The part you are missing is what delimits the value x. You would need to know what the end-delimiter is at least.