void explain_ftruncate_or_die(int fildes, long long length);
DESCRIPTION
The explain_ftruncate_or_die function
is used to call the ftruncate(2) system
call. On failure an explanation will be
printed to stderr,
obtained from explain_ftruncate(3),
and then the process terminates
by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion
similar to the following example:
explain_ftruncate_or_die(fildes, length);
fildes
The fildes, exactly as to be passed to the ftruncate(2) system call.
length
The length, exactly as to be passed to the ftruncate(2) system call.
Returns:
This function only returns on success.
On failure, prints an explanation and exits.