ys.orig/kern/kern_proc.c sys/kern/kern_proc.c
--- sys.orig/kern/kern_proc.c	Tue May  1 08:39:06 2001
+++ sys/kern/kern_proc.c	Tue Aug 27 02:30:53 2002
@@ -55,7 +55,7 @@
 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
 
-static int ps_showallprocs = 1;
+int ps_showallprocs = 1;
 SYSCTL_INT(_kern, OID_AUTO, ps_showallprocs, CTLFLAG_RW,
     &ps_showallprocs, 0, "");
 
diff -ru sys.orig/miscfs/procfs/procfs_vnops.c sys/miscfs/procfs/procfs_vnops.c
--- sys.orig/miscfs/procfs/procfs_vnops.c	Tue Jan 22 11:22:59 2002
+++ sys/miscfs/procfs/procfs_vnops.c	Tue Aug 27 04:25:39 2002
@@ -734,6 +734,10 @@
 		if (p == NULL)
 			break;
 
+		if (ps_showallprocs == 0 && ap->a_cnp->cn_cred->cr_uid != 0 &&
+		    ap->a_cnp->cn_cred->cr_uid != p->p_cred->pc_ucred->cr_uid)
+			break;
+
 		return (procfs_allocvp(dvp->v_mount, vpp, pid, Pproc));
 
 	case Pproc:
@@ -744,6 +748,10 @@
 		if (p == NULL)
 			break;
 
+		if (ps_showallprocs == 0 && ap->a_cnp->cn_cred->cr_uid != 0 &&
+		    ap->a_cnp->cn_cred->cr_uid != p->p_cred->pc_ucred->cr_uid)
+			break;
+
 		for (pt = proc_targets, i = 0; i < nproc_targets; pt++, i++) {
 			if (cnp->cn_namelen == pt->pt_namlen &&
 			    bcmp(pt->pt_name, pname, cnp->cn_namelen) == 0 &&
@@ -899,6 +907,16 @@
 					if (!p)
 						goto done;
 				}
+				if (ps_showallprocs == 0 && 
+				    ap->a_cred->cr_uid != 0 &&
+				    ap->a_cred->cr_uid !=
+				    p->p_cred->pc_ucred->cr_uid) {
+					p = p->p_list.le_next;
+					if (!p)
+						goto done;
+					break;
+				}
+
 				dp->d_fileno = PROCFS_FILENO(p->p_pid, Pproc);
 				dp->d_namlen = sprintf(dp->d_name, "%ld",
 				    (long)p->p_pid);
diff -ru sys.orig/sys/proc.h sys/sys/proc.h
--- sys.orig/sys/proc.h	Thu Jan 31 12:40:29 2002
+++ sys/sys/proc.h	Tue Aug 27 02:29:45 2002
@@ -415,6 +415,7 @@
 
 extern	u_long ps_arg_cache_limit;
 extern	int ps_argsopen;
+extern	int ps_showallprocs;
 
 struct proc *pfind __P((pid_t));	/* Find process by id. */
 struct pgrp *pgfind __P((pid_t));	/* Find process group by id. */