struct account {
int ac_acct; /* whom to charge */
int ac_pages; /* lpr pages */
int ac_quota; /* maximum quota */
long ac_sys; /* system cpu */
long ac_usr; /* usr cpu */
long ac_real; /* real time use */
long ac_ttyio; /* tty i/o */
long ac_diskio; /* disk i/o */
long ac_m1; /* miscellaneous */
long ac_m2;
long ac_m3;
long ac_m4;
long ac_m5;
};