int c_dkbuf (bufsiz)
long *bufsiz;
Amount of buffer space to save for the current system.
The c_dkbuf() call is used to define a disk buffer zone to ensure free disk is actually available. This amount can vary from system to system, and depends on the entries found in $LASTABLES/disk.config. If no entry for a particular hostname exists in the tabel, a default value is used.
c_dkbuf() returns
E_SUCC (0) --> successful completion E_FAIL (-1) --> operation failed