So I have opened a file with the "open" command and I get a file descriptor. That means I have to use lseek rather than fseek, which is fine by me. But what if I want to know how long the file is or what if I want to know where I am pointing. If I had a FILE*, I could use ftell. But I don't, so what do I use? ltell appears to not exist. Any ideas or alternatives? I need to bounce all over this file and write things, so I'd like to know where I am. Thanks.