+ donice(p, uap->prio);
+ break;
+
+ case PRIO_PGRP:
+ if (uap->who == 0)
+ uap->who = u.u_procp->p_pgrp;
+ for (p = proc; p < procNPROC; p++)
+ if (p->p_pgrp == uap->who)
+ donice(p, uap->prio);
+ break;
+
+ case PRIO_USER:
+ if (uap->who == 0)
+ uap->who = u.u_uid;
+ for (p = proc; p < procNPROC; p++)
+ if (p->p_uid == uap->who)
+ donice(p, uap->prio);
+ break;
+
+ default:
+ u.u_error = EINVAL;
+ break;
+ }
+}
+
+donice(p, n)
+ register struct proc *p;
+ register int n;
+{
+
+ if (u.u_uid && u.u_ruid &&
+ u.u_uid != p->p_uid && u.u_ruid != p->p_uid) {
+ u.u_error = EACCES;
+ return;
+ }
+ n += NZERO;
+ if (n >= 2*NZERO)
+ n = 2*NZERO - 1;
+ if (n < 0)
+ n = 0;
+ if (n < p->p_nice && !suser()) {
+ u.u_error = EACCES;
+ return;
+ }
+ p->p_nice = n;
+ (void) setpri(p);
+ if (u.u_error == ESRCH)
+ u.u_error = 0;
+}
+
+setrlimit()
+{
+ register struct a {
+ u_int which;
+ struct rlimit *lim;
+ } *uap = (struct a *)u.u_ap;
+ struct rlimit alim;
+ register struct rlimit *alimp;
+
+ if (uap->which >= RLIM_NLIMITS) {
+ u.u_error = EINVAL;
+ return;
+ }
+ alimp = &u.u_rlimit[uap->which];
+ if (copyin((caddr_t)uap->lim, (caddr_t)&alim, sizeof (struct rlimit))) {
+ u.u_error = EFAULT;
+ return;
+ }
+ if (alim.rlim_cur > alimp->rlim_max || alim.rlim_max > alimp->rlim_max)
+ if (!suser())