Browsing Russian translation

TRANS A function returns this error when certain parameter
TRANS values are valid, but the functionality they request is not available.
TRANS This can mean that the function does not implement a particular command
TRANS or option value or flag bit at all.  For functions that operate on some
TRANS object given in a parameter, such as a file descriptor or a port, it
TRANS might instead mean that only @emph{that specific object} (file
TRANS descriptor, port, etc.) is unable to support the other parameters given;
TRANS different file descriptors might support different ranges of parameter
TRANS values.
TRANS
TRANS If the entire function is not available at all in the implementation,
TRANS it returns @code{ENOSYS} instead.