Using fseek with a file pointer that points to stdin

Question

Depending on command-line arguments, I\'m setting a file pointer to point either towards a specified file or stdin (for the purpose of piping). I then pass this pointer arou

Answer 1

Fseek() is based on lseek(), and the lseek man page discusses possible errors, including:

 [ESPIPE]           Fildes is associated with a pipe, socket, or FIFO.

If stdin is connected to a pseudo tty, I believe it will have socket behavior.