long explain_read_or_die(int fildes, const void *data, long data_size);
DESCRIPTION
The explain_read_or_die function
is used to call the read(2) system
call. On failure an explanation will be
printed to stderr,
obtained from explain_read(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_read_or_die(fildes, data, data_size);
fildes
The fildes, exactly as to be passed to the read(2) system call.
data
The data, exactly as to be passed to the read(2) system call.
data_size
The data_size, exactly as to be passed to the read(2) system call.
Returns:
This function only returns on success.
On failure, prints an explanation and exits.