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

If the format is nalu_type = x

 fscanf(fp, "%s", buf);
if !strcmp(buf, "nalu_type")
{
   fscanf(fp, "%s", buf);
    if ( ! strcmp(buf, "="))
     fscanf(fp, "%s", buf);
    else
    printf("\n Not a valid format");
}

Repeat the above if until end of file.