Re: rollover translator

[Ognyan Kulev]

Alfred M. Szmidt wrote:
>    I'm not sure if POSIX allows filesystem (by its own will) to change
>    file offset of user file descriptor.
>
> We don't have to care about POSIX here.

If program uses POSIX API, then there should be POSIX behaviour.  In 
POSIX, each file descriptor has file pointer/offset/whatever.  Only 
holder of the file descriptor can change this file pointer.  So it's 
logical that noone but the program itself can change this file pointer 
(except if it has given file descriptor to another process).

One way to circumvent this is by declaring that this is socket, not 
file, so io_seek/lseek returns ESPIPE.

Regards,
ogi