The explain_statfs_or_die function is used to call the
statfs(2) system call. On failure an explanation will be printed to
stderr, obtained from the explain_statfs(3) function, and
then the process terminates by calling exit(EXIT_FAILURE).
The explain_statfs_on_error function is used to call the
statfs(2) system call. On failure an explanation will be printed to
stderr, obtained from the explain_statfs(3) function, but
still returns to the caller.
pathname
The pathname, exactly as to be passed to the statfs(2) system call.
data
The data, exactly as to be passed to the statfs(2) system call.
RETURN VALUE
The explain_statfs_or_die function only returns on success, see
statfs(2) for more information. On failure, prints an explanation
and exits, it does not return.
The explain_statfs_on_error function always returns the value
return by the wrapped statfs(2) system call.
EXAMPLE
The explain_statfs_or_die function is intended to be used in a
fashion similar to the following example: