Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106

1 files changed, 795 insertions, 0 deletions

diff --git a/network_cmds/netstat.tproj/route.c b/network_cmds/netstat.tproj/route.c
new file mode 100644
index 0000000..943e3c8
--- /dev/null
+++ b/network_cmds/netstat.tproj/route.c
@@ -0,0 +1,795 @@
+/*
+ * Copyright (c) 2008-2017 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1983, 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdint.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/errno.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <net/radix.h>
+
+#include <netinet/in.h>
+
+#include <sys/sysctl.h>
+
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <err.h>
+#include <time.h>
+#include "netstat.h"
+
+/* alignment constraint for routing socket */
+#define ROUNDUP(a) \
+       ((a) > 0 ? (1 + (((a) - 1) | (sizeof(uint32_t) - 1))) : sizeof(uint32_t))
+#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
+
+/*
+ * Definitions for showing gateway flags.
+ */
+struct bits {
+	uint32_t	b_mask;
+	char	b_val;
+} bits[] = {
+	{ RTF_UP,	'U' },
+	{ RTF_GATEWAY,	'G' },
+	{ RTF_HOST,	'H' },
+	{ RTF_REJECT,	'R' },
+	{ RTF_DYNAMIC,	'D' },
+	{ RTF_MODIFIED,	'M' },
+	{ RTF_MULTICAST,'m' },
+	{ RTF_DONE,	'd' }, /* Completed -- for routing messages only */
+	{ RTF_CLONING,	'C' },
+	{ RTF_XRESOLVE,	'X' },
+	{ RTF_LLINFO,	'L' },
+	{ RTF_STATIC,	'S' },
+	{ RTF_PROTO1,	'1' },
+	{ RTF_PROTO2,	'2' },
+	{ RTF_WASCLONED,'W' },
+	{ RTF_PRCLONING,'c' },
+	{ RTF_PROTO3,	'3' },
+	{ RTF_BLACKHOLE,'B' },
+	{ RTF_BROADCAST,'b' },
+	{ RTF_IFSCOPE,	'I' },
+	{ RTF_IFREF,	'i' },
+	{ RTF_PROXY,	'Y' },
+	{ RTF_ROUTER,	'r' },
+	{ 0 }
+};
+
+typedef union {
+	uint32_t dummy;		/* Helps align structure. */
+	struct	sockaddr u_sa;
+	u_short	u_data[128];
+} sa_u;
+
+static void np_rtentry __P((struct rt_msghdr2 *));
+static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int));
+static void p_flags __P((int, char *));
+static uint32_t forgemask __P((uint32_t));
+static void domask __P((char *, uint32_t, uint32_t));
+
+/*
+ * Print address family header before a section of the routing table.
+ */
+void
+pr_family(int af)
+{
+	char *afname;
+
+	switch (af) {
+	case AF_INET:
+		afname = "Internet";
+		break;
+#ifdef INET6
+	case AF_INET6:
+		afname = "Internet6";
+		break;
+#endif /*INET6*/
+	case AF_IPX:
+		afname = "IPX";
+		break;
+	default:
+		afname = NULL;
+		break;
+	}
+	if (afname)
+		printf("\n%s:\n", afname);
+	else
+		printf("\nProtocol Family %d:\n", af);
+}
+
+/* column widths; each followed by one space */
+#ifndef INET6
+#define	WID_DST(af) 	18	/* width of destination column */
+#define	WID_GW(af)	18	/* width of gateway column */
+#define	WID_RT_IFA(af)	18	/* width of source column */
+#define	WID_IF(af)	7	/* width of netif column */
+#else
+#define	WID_DST(af) \
+	((af) == AF_INET6 ? (lflag ? 39 : (nflag ? 39: 18)) : 18)
+#define	WID_GW(af) \
+	((af) == AF_INET6 ? (lflag ? 31 : (nflag ? 31 : 18)) : 18)
+#define	WID_RT_IFA(af) \
+	((af) == AF_INET6 ? (lflag ? 39 : (nflag ? 39 : 18)) : 18)
+#define	WID_IF(af)	((af) == AF_INET6 ? 8 : 7)
+#endif /*INET6*/
+
+/*
+ * Print header for routing table columns.
+ */
+void
+pr_rthdr(int af)
+{
+	if (lflag) {
+		if (lflag > 2)
+			printf("%-*.*s %-*.*s %-*.*s %-10.10s %6.6s %8.8s %6.6s %*.*s %6s "
+				"%10s %10s %8s %8s %8s\n",
+				WID_DST(af), WID_DST(af), "Destination",
+				WID_GW(af), WID_GW(af), "Gateway",
+				WID_RT_IFA(af), WID_RT_IFA(af), "RT_IFA",
+				"Flags", "Refs", "Use", "Mtu",
+				WID_IF(af), WID_IF(af), "Netif", "Expire",
+				"rtt(ms)", "rttvar(ms)", "recvpipe", "sendpipe", "ssthresh");
+		else if (lflag > 1)
+			printf("%-*.*s %-*.*s %-*.*s %-10.10s %6.6s %8.8s %6.6s %*.*s %6s "
+				"%10s %10s\n",
+				WID_DST(af), WID_DST(af), "Destination",
+				WID_GW(af), WID_GW(af), "Gateway",
+				WID_RT_IFA(af), WID_RT_IFA(af), "RT_IFA",
+				"Flags", "Refs", "Use", "Mtu",
+				WID_IF(af), WID_IF(af), "Netif", "Expire",
+				"rtt(ms)", "rttvar(ms)");
+		else
+			printf("%-*.*s %-*.*s %-*.*s %-10.10s %6.6s %8.8s %6.6s %*.*s %6s\n",
+				WID_DST(af), WID_DST(af), "Destination",
+				WID_GW(af), WID_GW(af), "Gateway",
+				WID_RT_IFA(af), WID_RT_IFA(af), "RT_IFA",
+				"Flags", "Refs", "Use", "Mtu",
+				WID_IF(af), WID_IF(af), "Netif", "Expire");
+    }  else {
+		printf("%-*.*s %-*.*s %-10.10s %*.*s %6s\n",
+			WID_DST(af), WID_DST(af), "Destination",
+			WID_GW(af), WID_GW(af), "Gateway",
+			"Flags", WID_IF(af), WID_IF(af), "Netif", "Expire");
+	}
+}
+
+/*
+ * Print routing tables.
+ */
+void
+routepr(void)
+{
+	size_t extra_space;
+	size_t needed;
+	int mib[6];
+	char *buf, *next, *lim;
+	struct rt_msghdr2 *rtm;
+	int try = 1;
+
+	printf("Routing tables\n");
+
+ again:
+	mib[0] = CTL_NET;
+	mib[1] = PF_ROUTE;
+	mib[2] = 0;
+	mib[3] = 0;
+	mib[4] = NET_RT_DUMP2;
+	mib[5] = 0;
+	if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
+		err(1, "sysctl: net.route.0.0.dump estimate");
+	}
+	/* allocate extra space in case the table grows */
+	extra_space = needed / 2;
+	if (needed <= (SIZE_MAX - extra_space)) {
+		needed += extra_space;
+	}
+	if ((buf = malloc(needed)) == 0) {
+		err(2, "malloc(%lu)", (unsigned long)needed);
+	}
+	if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
+#define MAX_TRIES	10
+		if (errno == ENOMEM && try < MAX_TRIES) {
+			/* the buffer we provided was too small, try again */
+			free(buf);
+			try++;
+			goto again;
+		}
+		err(1, "sysctl: net.route.0.0.dump");
+	}
+	lim  = buf + needed;
+	for (next = buf; next < lim; next += rtm->rtm_msglen) {
+		rtm = (struct rt_msghdr2 *)next;
+		np_rtentry(rtm);
+	}
+}
+
+static void
+get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
+{
+        int i;
+        
+        for (i = 0; i < RTAX_MAX; i++) {
+                if (addrs & (1 << i)) {
+                        rti_info[i] = sa;
+						sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
+		} else {
+                        rti_info[i] = NULL;
+        }
+}
+}
+
+static void
+np_rtentry(struct rt_msghdr2 *rtm)
+{
+	struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
+	struct sockaddr *rti_info[RTAX_MAX];
+	static int old_fam;
+	int fam = 0;
+	u_short lastindex = 0xffff;
+	static char ifname[IFNAMSIZ + 1];
+	sa_u addr, mask;
+
+	/*
+	 * Don't print protocol-cloned routes unless -a.
+	 */
+	if ((rtm->rtm_flags & RTF_WASCLONED) &&
+	    (rtm->rtm_parentflags & RTF_PRCLONING) &&
+	    !aflag) {
+			return;
+	}
+
+	if (lflag > 1 && zflag != 0 && rtm->rtm_rmx.rmx_rtt == 0 && rtm->rtm_rmx.rmx_rttvar == 0)
+		return;
+	fam = sa->sa_family;
+	if (af != AF_UNSPEC && af != fam)
+		return;
+	if (fam != old_fam) {
+		pr_family(fam);
+		pr_rthdr(fam);
+		old_fam = fam;
+	}
+	get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
+	bzero(&addr, sizeof(addr));
+	if ((rtm->rtm_addrs & RTA_DST))
+		bcopy(rti_info[RTAX_DST], &addr, rti_info[RTAX_DST]->sa_len);
+	bzero(&mask, sizeof(mask));
+	if ((rtm->rtm_addrs & RTA_NETMASK))
+		bcopy(rti_info[RTAX_NETMASK], &mask, rti_info[RTAX_NETMASK]->sa_len);
+	p_sockaddr(&addr.u_sa, &mask.u_sa, rtm->rtm_flags,
+	    WID_DST(addr.u_sa.sa_family));
+
+	p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST,
+	    WID_GW(addr.u_sa.sa_family));
+
+	if (lflag && (rtm->rtm_addrs & RTA_IFA)) {
+		p_sockaddr(rti_info[RTAX_IFA], NULL, RTF_HOST,
+		    WID_RT_IFA(addr.u_sa.sa_family));
+	}
+	
+	p_flags(rtm->rtm_flags, "%-10.10s ");
+
+	if (lflag) {
+		printf("%6u %8u ", rtm->rtm_refcnt, (unsigned int)rtm->rtm_use);
+		if (rtm->rtm_rmx.rmx_mtu != 0)
+			printf("%6u ", rtm->rtm_rmx.rmx_mtu);
+		else
+			printf("%6s ", "");
+	}
+
+	if (rtm->rtm_index != lastindex) {
+		if_indextoname(rtm->rtm_index, ifname);
+		lastindex = rtm->rtm_index;
+	}
+	printf("%*.*s", WID_IF(addr.u_sa.sa_family),
+		WID_IF(addr.u_sa.sa_family), ifname);
+
+	if (rtm->rtm_rmx.rmx_expire) {
+		time_t expire_time;
+
+		if ((expire_time =
+			rtm->rtm_rmx.rmx_expire - time((time_t *)0)) > 0)
+			printf(" %6d", (int)expire_time);
+		else
+			printf(" %6s", "!");
+	} else {
+		printf(" %6s", "");
+	}
+	if (lflag > 1) {
+		if (rtm->rtm_rmx.rmx_rtt != 0)
+			printf(" %6u.%03u", rtm->rtm_rmx.rmx_rtt / 1000,
+			       rtm->rtm_rmx.rmx_rtt % 1000);
+		else
+			printf(" %10s", "");
+		if (rtm->rtm_rmx.rmx_rttvar != 0)
+			printf(" %6u.%03u", rtm->rtm_rmx.rmx_rttvar / 1000,
+			       rtm->rtm_rmx.rmx_rttvar % 1000);
+		else
+			printf(" %10s", "");
+		if (lflag > 2) {
+			if (rtm->rtm_rmx.rmx_recvpipe != 0)
+				printf(" %8u", rtm->rtm_rmx.rmx_recvpipe);
+			else
+				printf(" %8s", "");
+			if (rtm->rtm_rmx.rmx_sendpipe != 0)
+				printf(" %8u", rtm->rtm_rmx.rmx_sendpipe);
+			else
+				printf(" %8s", "");
+			if (rtm->rtm_rmx.rmx_ssthresh != 0)
+				printf(" %8u", rtm->rtm_rmx.rmx_ssthresh);
+			else
+				printf(" %8s", "");
+		}
+	}
+	putchar('\n');
+}
+
+static void
+p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width)
+{
+	char workbuf[128], *cplim;
+	char *cp = workbuf;
+
+	switch(sa->sa_family) {
+	case AF_INET: {
+		struct sockaddr_in *sin = (struct sockaddr_in *)sa;
+
+		if ((sin->sin_addr.s_addr == INADDR_ANY) &&
+			mask &&
+		    (ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) == 0L || mask->sa_len == 0))
+				cp = "default" ;
+		else if (flags & RTF_HOST)
+			cp = routename(sin->sin_addr.s_addr);
+		else if (mask)
+			cp = netname(sin->sin_addr.s_addr,
+			    ntohl(((struct sockaddr_in *)mask)->
+			    sin_addr.s_addr));
+		else
+			cp = netname(sin->sin_addr.s_addr, 0L);
+		break;
+	    }
+
+#ifdef INET6
+	case AF_INET6: {
+		struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
+		struct in6_addr *in6 = &sa6->sin6_addr;
+
+		/*
+		 * XXX: This is a special workaround for KAME kernels.
+		 * sin6_scope_id field of SA should be set in the future.
+		 */
+		if (IN6_IS_ADDR_LINKLOCAL(in6) ||
+		    IN6_IS_ADDR_MC_NODELOCAL(in6) ||
+		    IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
+		    /* XXX: override is ok? */
+		    sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
+		    *(u_short *)&in6->s6_addr[2] = 0;
+		}
+
+		if (flags & RTF_HOST)
+		    cp = routename6(sa6);
+		else if (mask)
+		    cp = netname6(sa6, mask);
+		else
+		    cp = netname6(sa6, NULL);
+		break;
+	    }
+#endif /*INET6*/
+
+	case AF_LINK: {
+		struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
+
+		if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
+		    sdl->sdl_slen == 0) {
+			(void) snprintf(workbuf, sizeof(workbuf), "link#%d", sdl->sdl_index);
+		} else {
+			switch (sdl->sdl_type) {
+
+			case IFT_ETHER: {
+				int i;
+				u_char *lla = (u_char *)sdl->sdl_data +
+				    sdl->sdl_nlen;
+
+				cplim = "";
+				for (i = 0; i < sdl->sdl_alen; i++, lla++) {
+					cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), "%s%x", cplim, *lla);
+					cplim = ":";
+				}
+				cp = workbuf;
+				break;
+			    }
+
+			default:
+				cp = link_ntoa(sdl);
+				break;
+			}
+		}
+		break;
+	    }
+
+	default: {
+		u_char *s = (u_char *)sa->sa_data, *slim;
+
+		slim =  sa->sa_len + (u_char *) sa;
+		cplim = cp + sizeof(workbuf) - 6;
+		cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), "(%d)", sa->sa_family);
+		while (s < slim && cp < cplim) {
+			cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), " %02x", *s++);
+			if (s < slim)
+			    cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), "%02x", *s++);
+		}
+		cp = workbuf;
+	    }
+	}
+	if (width < 0 ) {
+		printf("%s ", cp);
+	} else {
+		if (nflag)
+			printf("%-*s ", width, cp);
+		else
+			printf("%-*.*s ", width, width, cp);
+	}
+}
+
+static void
+p_flags(int f, char *format)
+{
+	char name[33], *flags;
+	struct bits *p = bits;
+
+	for (flags = name; p->b_mask; p++)
+		if (p->b_mask & f)
+			*flags++ = p->b_val;
+	*flags = '\0';
+	printf(format, name);
+}
+
+char *
+routename(uint32_t in)
+{
+	char *cp;
+	static char line[MAXHOSTNAMELEN];
+	struct hostent *hp;
+
+	cp = 0;
+	if (!nflag) {
+		hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
+			AF_INET);
+		if (hp) {
+			cp = hp->h_name;
+			 //### trimdomain(cp, strlen(cp));
+		}
+	}
+	if (cp) {
+		strlcpy(line, cp, sizeof(line));
+	} else {
+#define C(x)	((x) & 0xff)
+		in = ntohl(in);
+		snprintf(line, sizeof(line), "%u.%u.%u.%u",
+		    C(in >> 24), C(in >> 16), C(in >> 8), C(in));
+	}
+	return (line);
+}
+
+static uint32_t
+forgemask(uint32_t a)
+{
+	uint32_t m;
+
+	if (IN_CLASSA(a))
+		m = IN_CLASSA_NET;
+	else if (IN_CLASSB(a))
+		m = IN_CLASSB_NET;
+	else
+		m = IN_CLASSC_NET;
+	return (m);
+}
+
+static void
+domask(char *dst, uint32_t addr, uint32_t mask)
+{
+	int b, i;
+
+	if (!mask || (forgemask(addr) == mask)) {
+		*dst = '\0';
+		return;
+	}
+	i = 0;
+	for (b = 0; b < 32; b++)
+		if (mask & (1 << b)) {
+			int bb;
+
+			i = b;
+			for (bb = b+1; bb < 32; bb++)
+				if (!(mask & (1 << bb))) {
+					i = -1;	/* noncontig */
+					break;
+				}
+			break;
+		}
+	if (i == -1)
+		snprintf(dst, sizeof(dst), "&0x%x", mask);
+	else
+		snprintf(dst, sizeof(dst), "/%d", 32-i);
+}
+
+/*
+ * Return the name of the network whose address is given.
+ * The address is assumed to be that of a net or subnet, not a host.
+ */
+char *
+netname(uint32_t in, uint32_t mask)
+{
+	char *cp = 0;
+	static char line[MAXHOSTNAMELEN];
+	struct netent *np = 0;
+	uint32_t net, omask, dmask;
+	uint32_t i;
+
+	i = ntohl(in);
+	dmask = forgemask(i);
+	omask = mask;
+	if (!nflag && i) {
+		net = i & dmask;
+		if (!(np = getnetbyaddr(i, AF_INET)) && net != i)
+			np = getnetbyaddr(net, AF_INET);
+		if (np) {
+			cp = np->n_name;
+			 //### trimdomain(cp, strlen(cp));
+		}
+	}
+	if (cp)
+		strlcpy(line, cp, sizeof(line));
+	else {
+		switch (dmask) {
+		case IN_CLASSA_NET:
+			if ((i & IN_CLASSA_HOST) == 0) {
+				snprintf(line, sizeof(line), "%u", C(i >> 24));
+				break;
+			}
+			/* FALLTHROUGH */
+		case IN_CLASSB_NET:
+			if ((i & IN_CLASSB_HOST) == 0) {
+				snprintf(line, sizeof(line), "%u.%u",
+					C(i >> 24), C(i >> 16));
+				break;
+			}
+			/* FALLTHROUGH */
+		case IN_CLASSC_NET:
+			if ((i & IN_CLASSC_HOST) == 0) {
+				snprintf(line, sizeof(line), "%u.%u.%u",
+					C(i >> 24), C(i >> 16), C(i >> 8));
+				break;
+			}
+			/* FALLTHROUGH */
+		default:
+			snprintf(line, sizeof(line), "%u.%u.%u.%u",
+				C(i >> 24), C(i >> 16), C(i >> 8), C(i));
+			break;
+		}
+	}
+	domask(line+strlen(line), i, omask);
+	return (line);
+}
+
+#ifdef INET6
+char *
+netname6(struct sockaddr_in6 *sa6, struct sockaddr *sam)
+{
+	static char line[MAXHOSTNAMELEN];
+	u_char *lim;
+	int masklen, illegal = 0, flag = NI_WITHSCOPEID;
+	struct in6_addr *mask = sam ? &((struct sockaddr_in6 *)sam)->sin6_addr : 0;
+
+	if (sam && sam->sa_len == 0) {
+		masklen = 0;
+	} else if (mask) {
+		u_char *p = (u_char *)mask;
+		for (masklen = 0, lim = p + 16; p < lim; p++) {
+			switch (*p) {
+			 case 0xff:
+				 masklen += 8;
+				 break;
+			 case 0xfe:
+				 masklen += 7;
+				 break;
+			 case 0xfc:
+				 masklen += 6;
+				 break;
+			 case 0xf8:
+				 masklen += 5;
+				 break;
+			 case 0xf0:
+				 masklen += 4;
+				 break;
+			 case 0xe0:
+				 masklen += 3;
+				 break;
+			 case 0xc0:
+				 masklen += 2;
+				 break;
+			 case 0x80:
+				 masklen += 1;
+				 break;
+			 case 0x00:
+				 break;
+			 default:
+				 illegal ++;
+				 break;
+			}
+		}
+		if (illegal)
+			fprintf(stderr, "illegal prefixlen\n");
+	} else {
+		masklen = 128;
+	}
+	if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
+		return("default");
+
+	if (nflag)
+		flag |= NI_NUMERICHOST;
+	getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line),
+		    NULL, 0, flag);
+
+	if (nflag)
+		snprintf(&line[strlen(line)], sizeof(line) - strlen(line), "/%d", masklen);
+
+	return line;
+}
+
+char *
+routename6(struct sockaddr_in6 *sa6)
+{
+	static char line[MAXHOSTNAMELEN];
+	int flag = NI_WITHSCOPEID;
+	/* use local variable for safety */
+	struct sockaddr_in6 sa6_local = {sizeof(sa6_local), AF_INET6, };
+
+	sa6_local.sin6_addr = sa6->sin6_addr;
+	sa6_local.sin6_scope_id = sa6->sin6_scope_id;
+
+	if (nflag)
+		flag |= NI_NUMERICHOST;
+
+	getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len,
+		    line, sizeof(line), NULL, 0, flag);
+
+	return line;
+}
+#endif /*INET6*/
+
+/*
+ * Print routing statistics
+ */
+void
+rt_stats(void)
+{
+	struct rtstat rtstat;
+	int rttrash;
+	int mib[6];
+	size_t len;
+
+	mib[0] = CTL_NET;
+	mib[1] = AF_ROUTE;
+	mib[2] = 0;
+	mib[3] = 0;
+	mib[4] = NET_RT_STAT;
+	mib[5] = 0;
+	len = sizeof(struct rtstat);
+	if (sysctl(mib, 6, &rtstat, &len, 0, 0) == -1)
+		return;
+		
+	mib[0] = CTL_NET;
+	mib[1] = AF_ROUTE;
+	mib[2] = 0;
+	mib[3] = 0;
+	mib[4] = NET_RT_TRASH;
+	mib[5] = 0;
+	len = sizeof(rttrash);
+	if (sysctl(mib, 6, &rttrash, &len, 0, 0) == -1)
+		return;
+
+	printf("routing:\n");
+
+#define	p(f, m) if (rtstat.f || sflag <= 1) \
+	printf(m, rtstat.f, plural(rtstat.f))
+
+	p(rts_badredirect, "\t%u bad routing redirect%s\n");
+	p(rts_dynamic, "\t%u dynamically created route%s\n");
+	p(rts_newgateway, "\t%u new gateway%s due to redirects\n");
+	p(rts_unreach, "\t%u destination%s found unreachable\n");
+	p(rts_wildcard, "\t%u use%s of a wildcard route\n");
+	p(rts_badrtgwroute, "\t%u lookup%s returned indirect "
+	    "routes pointing to indirect gateway route\n");
+#undef p
+
+	if (rttrash || sflag <= 1)
+		printf("\t%u route%s not in table but not freed\n",
+		    rttrash, plural(rttrash));
+}
+
+void
+upHex(char *p0)
+{
+	char *p = p0;
+
+	for (; *p; p++)
+		switch (*p) {
+
+		case 'a':
+		case 'b':
+		case 'c':
+		case 'd':
+		case 'e':
+		case 'f':
+			*p += ('A' - 'a');
+			break;
+		}
+}