Implement kvm_getproc2(), kvm_getargv2() and kvm_getenvv2() that use

the KERN_PROC2 sysctl.  Based on changes from NetBSD but uses our
own kvm_arg_sysctl().

src/include/kvm.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: kvm.h,v 1.9 2003/08/01 17:38:33 avsm Exp $	*/
+/*	$OpenBSD: kvm.h,v 1.10 2004/01/07 02:16:32 millert Exp $	*/
 /*	$NetBSD: kvm.h,v 1.7 1996/04/19 12:02:50 leo Exp $	*/
 
 /*-
@@ -54,17 +54,22 @@ __BEGIN_DECLS
 typedef struct __kvm kvm_t;
 
 struct kinfo_proc;
+struct kinfo_proc2;
 int	  kvm_close(kvm_t *);
 int	  kvm_dump_inval(kvm_t *);
 int	  kvm_dump_mkheader(kvm_t *, off_t);
 int	  kvm_dump_wrtheader(kvm_t *, FILE *, int);
 char	**kvm_getargv(kvm_t *, const struct kinfo_proc *, int);
+char	**kvm_getargv2(kvm_t *, const struct kinfo_proc2 *, int);
 char	**kvm_getenvv(kvm_t *, const struct kinfo_proc *, int);
+char	**kvm_getenvv2(kvm_t *, const struct kinfo_proc2 *, int);
 char	 *kvm_geterr(kvm_t *);
 int	  kvm_getloadavg(kvm_t *, double [], int);
 char	 *kvm_getfiles(kvm_t *, int, int, int *);
 struct kinfo_proc *
 	  kvm_getprocs(kvm_t *, int, int, int *);
+struct kinfo_proc2 *
+	  kvm_getproc2(kvm_t *, int, int, size_t, int *);
 int	  kvm_nlist(kvm_t *, struct nlist *);
 kvm_t	 *kvm_open
 (const char *, const char *, const char *, int, const char *);