I am having a bit of trouble finding a file using my program.
Basically, within my current directory I want to find all files of a particular file extension.

That will return about five files, of which I want to check the contents.

The trick is that the files are not of .txt format but a driver file .inf format.

How do I

1) Search for all *.inf files

2) Read a non txt file

Thanks in advance if u can help me

When searching for files you can use a variety of functions, including the opendir()/readdir() POSIX compliant ones, the findfirst()/findnext() functions declared in dir.h, or the WinAPI functions FindFirstFile()/FindNextFile(). Your choice, really, although I'd say the first set are the most widely supported of them all.

As for binary I/O, when using the stdio functions, you want to open the file with the mode "rb", or "wb" for writing, "ab" when appending, etc. Essentially you need a 'b' after the mode. Then you can use the binary I/O functions fread() and fwrite() to achieve whatever you needed done. Pretty much the same as text files.