xref: /freebsd/usr.bin/netstat/route.c (revision 0de89efe5c443f213c7ea28773ef2dc6cf3af2ed)
1 /*
2  * Copyright (c) 1983, 1988, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 #if 0
36 static char sccsid[] = "From: @(#)route.c	8.6 (Berkeley) 4/28/95";
37 #endif
38 static const char rcsid[] =
39 	"$Id: route.c,v 1.27 1997/05/25 08:36:20 phk Exp $";
40 #endif /* not lint */
41 
42 #include <sys/param.h>
43 #include <sys/protosw.h>
44 #include <sys/socket.h>
45 #include <sys/time.h>
46 
47 #include <net/if.h>
48 #include <net/if_var.h>
49 #include <net/if_dl.h>
50 #include <net/if_types.h>
51 #include <net/route.h>
52 
53 #include <netinet/in.h>
54 #include <netipx/ipx.h>
55 #include <netatalk/at.h>
56 
57 #ifdef NS
58 #include <netns/ns.h>
59 #endif
60 
61 #include <sys/sysctl.h>
62 
63 #include <netdb.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <string.h>
67 #include <unistd.h>
68 #include <err.h>
69 #include <time.h>
70 #include "netstat.h"
71 
72 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d)))
73 
74 /*
75  * Definitions for showing gateway flags.
76  */
77 struct bits {
78 	u_long	b_mask;
79 	char	b_val;
80 } bits[] = {
81 	{ RTF_UP,	'U' },
82 	{ RTF_GATEWAY,	'G' },
83 	{ RTF_HOST,	'H' },
84 	{ RTF_REJECT,	'R' },
85 	{ RTF_DYNAMIC,	'D' },
86 	{ RTF_MODIFIED,	'M' },
87 	{ RTF_DONE,	'd' }, /* Completed -- for routing messages only */
88 	{ RTF_CLONING,	'C' },
89 	{ RTF_XRESOLVE,	'X' },
90 	{ RTF_LLINFO,	'L' },
91 	{ RTF_STATIC,	'S' },
92 	{ RTF_PROTO1,	'1' },
93 	{ RTF_PROTO2,	'2' },
94 	{ RTF_WASCLONED,'W' },
95 	{ RTF_PRCLONING,'c' },
96 	{ RTF_PROTO3,	'3' },
97 	{ RTF_BLACKHOLE,'B' },
98 	{ RTF_BROADCAST,'b' },
99 	{ 0 }
100 };
101 
102 static union {
103 	struct	sockaddr u_sa;
104 	u_short	u_data[128];
105 } pt_u;
106 
107 int	do_rtent = 0;
108 struct	rtentry rtentry;
109 struct	radix_node rnode;
110 struct	radix_mask rmask;
111 struct	radix_node_head *rt_tables[AF_MAX+1];
112 
113 int	NewTree = 0;
114 
115 static struct sockaddr *kgetsa __P((struct sockaddr *));
116 static void p_tree __P((struct radix_node *));
117 static void p_rtnode __P(());
118 static void ntreestuff __P(());
119 static void np_rtentry __P((struct rt_msghdr *));
120 static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int));
121 static void p_flags __P((int, char *));
122 static void p_rtentry __P((struct rtentry *));
123 
124 /*
125  * Print routing tables.
126  */
127 void
128 routepr(rtree)
129 	u_long rtree;
130 {
131 	struct radix_node_head *rnh, head;
132 	int i;
133 
134 	printf("Routing tables\n");
135 
136 	if (Aflag == 0 && NewTree)
137 		ntreestuff();
138 	else {
139 		if (rtree == 0) {
140 			printf("rt_tables: symbol not in namelist\n");
141 			return;
142 		}
143 
144 		kget(rtree, rt_tables);
145 		for (i = 0; i <= AF_MAX; i++) {
146 			if ((rnh = rt_tables[i]) == 0)
147 				continue;
148 			kget(rnh, head);
149 			if (i == AF_UNSPEC) {
150 				if (Aflag && af == 0) {
151 					printf("Netmasks:\n");
152 					p_tree(head.rnh_treetop);
153 				}
154 			} else if (af == AF_UNSPEC || af == i) {
155 				pr_family(i);
156 				do_rtent = 1;
157 				pr_rthdr();
158 				p_tree(head.rnh_treetop);
159 			}
160 		}
161 	}
162 }
163 
164 /*
165  * Print address family header before a section of the routing table.
166  */
167 void
168 pr_family(af)
169 	int af;
170 {
171 	char *afname;
172 
173 	switch (af) {
174 	case AF_INET:
175 		afname = "Internet";
176 		break;
177 	case AF_IPX:
178 		afname = "IPX";
179 		break;
180 #ifdef NS
181 	case AF_NS:
182 		afname = "XNS";
183 		break;
184 #endif
185 	case AF_ISO:
186 		afname = "ISO";
187 		break;
188 	case AF_APPLETALK:
189 		afname = "AppleTalk";
190 		break;
191 	case AF_CCITT:
192 		afname = "X.25";
193 		break;
194 	default:
195 		afname = NULL;
196 		break;
197 	}
198 	if (afname)
199 		printf("\n%s:\n", afname);
200 	else
201 		printf("\nProtocol Family %d:\n", af);
202 }
203 
204 /* column widths; each followed by one space */
205 #define	WID_DST		18	/* width of destination column */
206 #define	WID_GW		18	/* width of gateway column */
207 
208 /*
209  * Print header for routing table columns.
210  */
211 void
212 pr_rthdr()
213 {
214 	if (Aflag)
215 		printf("%-8.8s ","Address");
216 	printf("%-*.*s %-*.*s %-6.6s  %6.6s%8.8s  %8.8s %6s\n",
217 		WID_DST, WID_DST, "Destination",
218 		WID_GW, WID_GW, "Gateway",
219 		"Flags", "Refs", "Use", "Netif", "Expire");
220 }
221 
222 static struct sockaddr *
223 kgetsa(dst)
224 	register struct sockaddr *dst;
225 {
226 
227 	kget(dst, pt_u.u_sa);
228 	if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
229 		kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
230 	return (&pt_u.u_sa);
231 }
232 
233 static void
234 p_tree(rn)
235 	struct radix_node *rn;
236 {
237 
238 again:
239 	kget(rn, rnode);
240 	if (rnode.rn_b < 0) {
241 		if (Aflag)
242 			printf("%-8.8x ", (int)rn);
243 		if (rnode.rn_flags & RNF_ROOT) {
244 			if (Aflag)
245 				printf("(root node)%s",
246 				    rnode.rn_dupedkey ? " =>\n" : "\n");
247 		} else if (do_rtent) {
248 			kget(rn, rtentry);
249 			p_rtentry(&rtentry);
250 			if (Aflag)
251 				p_rtnode();
252 		} else {
253 			p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
254 				   NULL, 0, 44);
255 			putchar('\n');
256 		}
257 		if ((rn = rnode.rn_dupedkey))
258 			goto again;
259 	} else {
260 		if (Aflag && do_rtent) {
261 			printf("%-8.8x ", (int)rn);
262 			p_rtnode();
263 		}
264 		rn = rnode.rn_r;
265 		p_tree(rnode.rn_l);
266 		p_tree(rn);
267 	}
268 }
269 
270 char	nbuf[20];
271 
272 static void
273 p_rtnode()
274 {
275 	struct radix_mask *rm = rnode.rn_mklist;
276 
277 	if (rnode.rn_b < 0) {
278 		if (rnode.rn_mask) {
279 			printf("\t  mask ");
280 			p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
281 				   NULL, 0, -1);
282 		} else if (rm == 0)
283 			return;
284 	} else {
285 		sprintf(nbuf, "(%d)", rnode.rn_b);
286 		printf("%6.6s %8.8x : %8.8x", nbuf, (int)rnode.rn_l, (int)rnode.rn_r);
287 	}
288 	while (rm) {
289 		kget(rm, rmask);
290 		sprintf(nbuf, " %d refs, ", rmask.rm_refs);
291 		printf(" mk = %8.8x {(%d),%s",
292 			(int)rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
293 		if (rmask.rm_flags & RNF_NORMAL) {
294 			struct radix_node rnode_aux;
295 			printf(" <normal>, ");
296 			kget(rmask.rm_leaf, rnode_aux);
297 			p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask),
298 				    NULL, 0, -1);
299 		} else
300 		    p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask),
301 				NULL, 0, -1);
302 		putchar('}');
303 		if ((rm = rmask.rm_mklist))
304 			printf(" ->");
305 	}
306 	putchar('\n');
307 }
308 
309 static void
310 ntreestuff()
311 {
312 	size_t needed;
313 	int mib[6];
314 	char *buf, *next, *lim;
315 	register struct rt_msghdr *rtm;
316 
317         mib[0] = CTL_NET;
318         mib[1] = PF_ROUTE;
319         mib[2] = 0;
320         mib[3] = 0;
321         mib[4] = NET_RT_DUMP;
322         mib[5] = 0;
323         if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
324 		err(1, "sysctl: net.route.0.0.dump estimate");
325 	}
326 
327 	if ((buf = malloc(needed)) == 0) {
328 		err(2, "malloc(%lu)", (unsigned long)needed);
329 	}
330         if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
331 		err(1, "sysctl: net.route.0.0.dump");
332 	}
333 	lim  = buf + needed;
334 	for (next = buf; next < lim; next += rtm->rtm_msglen) {
335 		rtm = (struct rt_msghdr *)next;
336 		np_rtentry(rtm);
337 	}
338 }
339 
340 static void
341 np_rtentry(rtm)
342 	register struct rt_msghdr *rtm;
343 {
344 	register struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
345 #ifdef notdef
346 	static int masks_done, banner_printed;
347 #endif
348 	static int old_af;
349 	int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;
350 
351 #ifdef notdef
352 	/* for the moment, netmasks are skipped over */
353 	if (!banner_printed) {
354 		printf("Netmasks:\n");
355 		banner_printed = 1;
356 	}
357 	if (masks_done == 0) {
358 		if (rtm->rtm_addrs != RTA_DST ) {
359 			masks_done = 1;
360 			af = sa->sa_family;
361 		}
362 	} else
363 #endif
364 		af = sa->sa_family;
365 	if (af != old_af) {
366 		pr_family(af);
367 		old_af = af;
368 	}
369 	if (rtm->rtm_addrs == RTA_DST)
370 		p_sockaddr(sa, NULL, 0, 36);
371 	else {
372 		p_sockaddr(sa, NULL, rtm->rtm_flags, 16);
373 		if (sa->sa_len == 0)
374 			sa->sa_len = sizeof(long);
375 		sa = (struct sockaddr *)(sa->sa_len + (char *)sa);
376 		p_sockaddr(sa, NULL, 0, 18);
377 	}
378 	p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
379 	putchar('\n');
380 }
381 
382 static void
383 p_sockaddr(sa, mask, flags, width)
384 	struct sockaddr *sa, *mask;
385 	int flags, width;
386 {
387 	char workbuf[128], *cplim;
388 	register char *cp = workbuf;
389 
390 	switch(sa->sa_family) {
391 	case AF_INET:
392 	    {
393 		register struct sockaddr_in *sin = (struct sockaddr_in *)sa;
394 
395 		if (sin->sin_addr.s_addr == INADDR_ANY)
396 			cp = "default";
397 		else if (flags & RTF_HOST)
398 			cp = routename(sin->sin_addr.s_addr);
399 		else if (mask)
400 			cp = netname(sin->sin_addr.s_addr,
401 				     ntohl(((struct sockaddr_in *)mask)
402 					   ->sin_addr.s_addr));
403 		else
404 			cp = netname(sin->sin_addr.s_addr, 0L);
405 		break;
406 	    }
407 
408 	case AF_IPX:
409 	    {
410 		struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr;
411 		if (ipx_nullnet(satoipx_addr(work)))
412 			cp = "default";
413 		else
414 			cp = ipx_print(sa);
415 		break;
416 	    }
417 	case AF_APPLETALK:
418 	    {
419 		if (!(flags & RTF_HOST) && mask)
420 			cp = atalk_print2(sa,mask,9);
421 		else
422 			cp = atalk_print(sa,11);
423 		break;
424 	    }
425 #ifdef NS
426 	case AF_NS:
427 		cp = ns_print(sa);
428 		break;
429 #endif
430 
431 	case AF_LINK:
432 	    {
433 		register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
434 
435 		if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
436 		    sdl->sdl_slen == 0)
437 			(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
438 		else switch (sdl->sdl_type) {
439 		case IFT_ETHER:
440 		    {
441 			register int i;
442 			register u_char *lla = (u_char *)sdl->sdl_data +
443 			    sdl->sdl_nlen;
444 
445 			cplim = "";
446 			for (i = 0; i < sdl->sdl_alen; i++, lla++) {
447 				cp += sprintf(cp, "%s%x", cplim, *lla);
448 				cplim = ":";
449 			}
450 			cp = workbuf;
451 			break;
452 		    }
453 		default:
454 			cp = link_ntoa(sdl);
455 			break;
456 		}
457 		break;
458 	    }
459 
460 	default:
461 	    {
462 		register u_char *s = (u_char *)sa->sa_data, *slim;
463 
464 		slim =  sa->sa_len + (u_char *) sa;
465 		cplim = cp + sizeof(workbuf) - 6;
466 		cp += sprintf(cp, "(%d)", sa->sa_family);
467 		while (s < slim && cp < cplim) {
468 			cp += sprintf(cp, " %02x", *s++);
469 			if (s < slim)
470 			    cp += sprintf(cp, "%02x", *s++);
471 		}
472 		cp = workbuf;
473 	    }
474 	}
475 	if (width < 0 )
476 		printf("%s ", cp);
477 	else {
478 		if (nflag)
479 			printf("%-*s ", width, cp);
480 		else
481 			printf("%-*.*s ", width, width, cp);
482 	}
483 }
484 
485 static void
486 p_flags(f, format)
487 	register int f;
488 	char *format;
489 {
490 	char name[33], *flags;
491 	register struct bits *p = bits;
492 
493 	for (flags = name; p->b_mask; p++)
494 		if (p->b_mask & f)
495 			*flags++ = p->b_val;
496 	*flags = '\0';
497 	printf(format, name);
498 }
499 
500 static void
501 p_rtentry(rt)
502 	register struct rtentry *rt;
503 {
504 	static struct ifnet ifnet, *lastif;
505 	static char name[16];
506 	static char prettyname[9];
507 	struct sockaddr *sa;
508 	struct sockaddr addr, mask;
509 
510 	/*
511 	 * Don't print protocol-cloned routes unless -a.
512 	 */
513 	if(rt->rt_parent && !aflag)
514 		return;
515 
516 	if (!(sa = kgetsa(rt_key(rt))))
517 		bzero(&addr, sizeof addr);
518 	else
519 		addr = *sa;
520 	if (!rt_mask(rt) || !(sa = kgetsa(rt_mask(rt))))
521 		bzero(&mask, sizeof mask);
522 	else
523 		mask = *sa;
524 	p_sockaddr(&addr, &mask, rt->rt_flags, WID_DST);
525 	p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, WID_GW);
526 	p_flags(rt->rt_flags, "%-6.6s ");
527 	printf("%6d %8ld ", rt->rt_refcnt, rt->rt_use);
528 	if (rt->rt_ifp) {
529 		if (rt->rt_ifp != lastif) {
530 			kget(rt->rt_ifp, ifnet);
531 			kread((u_long)ifnet.if_name, name, 16);
532 			lastif = rt->rt_ifp;
533 			snprintf(prettyname, sizeof prettyname,
534 				 "%.6s%d", name, ifnet.if_unit);
535 		}
536 		if(rt->rt_rmx.rmx_expire) {
537 			time_t expire_time;
538 
539 		        if ((expire_time
540 			       =rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0)
541 			    printf(" %8.8s %6d%s", prettyname,
542 				   (int)expire_time,
543 				   rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
544 		} else {
545 			printf(" %8.8s%s", prettyname,
546 			       rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
547 		}
548 
549 	}
550 	putchar('\n');
551 }
552 
553 char *
554 routename(in)
555 	u_long in;
556 {
557 	register char *cp;
558 	static char line[MAXHOSTNAMELEN + 1];
559 	struct hostent *hp;
560 
561 	cp = 0;
562 	if (!nflag) {
563 		hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
564 			AF_INET);
565 		if (hp) {
566 			cp = hp->h_name;
567 			trimdomain(cp);
568 		}
569 	}
570 	if (cp)
571 		strncpy(line, cp, sizeof(line) - 1);
572 	else {
573 #define C(x)	((x) & 0xff)
574 		in = ntohl(in);
575 		sprintf(line, "%lu.%lu.%lu.%lu",
576 		    C(in >> 24), C(in >> 16), C(in >> 8), C(in));
577 	}
578 	return (line);
579 }
580 
581 static u_long
582 forgemask(a)
583 	u_long a;
584 {
585 	u_long m;
586 
587 	if (IN_CLASSA(a))
588 		m = IN_CLASSA_NET;
589 	else if (IN_CLASSB(a))
590 		m = IN_CLASSB_NET;
591 	else
592 		m = IN_CLASSC_NET;
593 	return (m);
594 }
595 
596 static void
597 domask(dst, addr, mask)
598 	char *dst;
599 	u_long addr, mask;
600 {
601 	register int b, i;
602 
603 	if (!mask || (forgemask(addr) == mask)) {
604 		*dst = '\0';
605 		return;
606 	}
607 	i = 0;
608 	for (b = 0; b < 32; b++)
609 		if (mask & (1 << b)) {
610 			register int bb;
611 
612 			i = b;
613 			for (bb = b+1; bb < 32; bb++)
614 				if (!(mask & (1 << bb))) {
615 					i = -1;	/* noncontig */
616 					break;
617 				}
618 			break;
619 		}
620 	if (i == -1)
621 		sprintf(dst, "&0x%lx", mask);
622 	else
623 		sprintf(dst, "/%d", 32-i);
624 }
625 
626 /*
627  * Return the name of the network whose address is given.
628  * The address is assumed to be that of a net or subnet, not a host.
629  */
630 char *
631 netname(in, mask)
632 	u_long in, mask;
633 {
634 	char *cp = 0;
635 	static char line[MAXHOSTNAMELEN + 1];
636 	struct netent *np = 0;
637 	u_long net, omask, dmask;
638 	register u_long i;
639 
640 	i = ntohl(in);
641 	omask = mask;
642 	if (!nflag && i) {
643 		dmask = forgemask(i);
644 		net = i & dmask;
645 		if (!(np = getnetbyaddr(i, AF_INET)) && net != i)
646 			np = getnetbyaddr(net, AF_INET);
647 		if (np) {
648 			cp = np->n_name;
649 			trimdomain(cp);
650 		}
651 	}
652 	if (cp)
653 		strncpy(line, cp, sizeof(line) - 1);
654 	else if ((i & 0xffffff) == 0)
655 		sprintf(line, "%lu", C(i >> 24));
656 	else if ((i & 0xffff) == 0)
657 		sprintf(line, "%lu.%lu", C(i >> 24) , C(i >> 16));
658 	else if ((i & 0xff) == 0)
659 		sprintf(line, "%lu.%lu.%lu", C(i >> 24), C(i >> 16), C(i >> 8));
660 	else
661 		sprintf(line, "%lu.%lu.%lu.%lu", C(i >> 24),
662 			C(i >> 16), C(i >> 8), C(i));
663 	domask(line+strlen(line), i, omask);
664 	return (line);
665 }
666 
667 /*
668  * Print routing statistics
669  */
670 void
671 rt_stats(off)
672 	u_long off;
673 {
674 	struct rtstat rtstat;
675 
676 	if (off == 0) {
677 		printf("rtstat: symbol not in namelist\n");
678 		return;
679 	}
680 	kread(off, (char *)&rtstat, sizeof (rtstat));
681 	printf("routing:\n");
682 	printf("\t%u bad routing redirect%s\n",
683 		rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
684 	printf("\t%u dynamically created route%s\n",
685 		rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
686 	printf("\t%u new gateway%s due to redirects\n",
687 		rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
688 	printf("\t%u destination%s found unreachable\n",
689 		rtstat.rts_unreach, plural(rtstat.rts_unreach));
690 	printf("\t%u use%s of a wildcard route\n",
691 		rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
692 }
693 
694 char *
695 ipx_print(sa)
696 	register struct sockaddr *sa;
697 {
698 	u_short port;
699 	struct servent *sp = 0;
700 	char *net = "", *host = "";
701 	register char *p; register u_char *q;
702 	struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr;
703 static	char mybuf[50];
704 	char cport[10], chost[15], cnet[15];
705 
706 	port = ntohs(work.x_port);
707 
708 	if (ipx_nullnet(work) && ipx_nullhost(work)) {
709 
710 		if (port) {
711 			if (sp)	sprintf(mybuf, "*.%s", sp->s_name);
712 			else	sprintf(mybuf, "*.%x", port);
713 		} else
714 			sprintf(mybuf, "*.*");
715 
716 		return (mybuf);
717 	}
718 
719 	if (ipx_wildnet(work))
720 		net = "any";
721 	else if (ipx_nullnet(work))
722 		net = "*";
723 	else {
724 		q = work.x_net.c_net;
725 		sprintf(cnet, "%02x%02x%02x%02x",
726 			q[0], q[1], q[2], q[3]);
727 		for (p = cnet; *p == '0' && p < cnet + 8; p++)
728 			continue;
729 		net = p;
730 	}
731 
732 	if (ipx_wildhost(work))
733 		host = "any";
734 	else if (ipx_nullhost(work))
735 		host = "*";
736 	else {
737 		q = work.x_host.c_host;
738 		sprintf(chost, "%02x%02x%02x%02x%02x%02x",
739 			q[0], q[1], q[2], q[3], q[4], q[5]);
740 		for (p = chost; *p == '0' && p < chost + 12; p++)
741 			continue;
742 		host = p;
743 	}
744 
745 	if (port) {
746 		if (strcmp(host, "*") == 0) host = "";
747 		if (sp)	sprintf(cport, "%s%s", *host ? "." : "", sp->s_name);
748 		else	sprintf(cport, "%s%x", *host ? "." : "", port);
749 	} else
750 		*cport = 0;
751 
752 	sprintf(mybuf,"%s.%s%s", net, host, cport);
753 	return(mybuf);
754 }
755 
756 char *
757 ipx_phost(sa)
758 	struct sockaddr *sa;
759 {
760 	register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa;
761 	struct sockaddr_ipx work;
762 static	union ipx_net ipx_zeronet;
763 	char *p;
764 	struct ipx_addr in;
765 
766 	work = *sipx;
767 	in = work.sipx_addr;
768 
769 	work.sipx_addr.x_port = 0;
770 	work.sipx_addr.x_net = ipx_zeronet;
771 	p = ipx_print((struct sockaddr *)&work);
772 	if (strncmp("*.", p, 2) == 0) p += 2;
773 
774 	return(p);
775 }
776 
777 #ifdef NS
778 short ns_nullh[] = {0,0,0};
779 short ns_bh[] = {-1,-1,-1};
780 
781 char *
782 ns_print(sa)
783 	register struct sockaddr *sa;
784 {
785 	register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
786 	struct ns_addr work;
787 	union { union ns_net net_e; u_long long_e; } net;
788 	u_short port;
789 	static char mybuf[50], cport[10], chost[25];
790 	char *host = "";
791 	register char *p; register u_char *q;
792 
793 	work = sns->sns_addr;
794 	port = ntohs(work.x_port);
795 	work.x_port = 0;
796 	net.net_e  = work.x_net;
797 	if (ns_nullhost(work) && net.long_e == 0) {
798 		if (port ) {
799 			sprintf(mybuf, "*.%xH", port);
800 			upHex(mybuf);
801 		} else
802 			sprintf(mybuf, "*.*");
803 		return (mybuf);
804 	}
805 
806 	if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
807 		host = "any";
808 	} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
809 		host = "*";
810 	} else {
811 		q = work.x_host.c_host;
812 		sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
813 			q[0], q[1], q[2], q[3], q[4], q[5]);
814 		for (p = chost; *p == '0' && p < chost + 12; p++)
815 			continue;
816 		host = p;
817 	}
818 	if (port)
819 		sprintf(cport, ".%xH", htons(port));
820 	else
821 		*cport = 0;
822 
823 	sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
824 	upHex(mybuf);
825 	return(mybuf);
826 }
827 
828 char *
829 ns_phost(sa)
830 	struct sockaddr *sa;
831 {
832 	register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
833 	struct sockaddr_ns work;
834 	static union ns_net ns_zeronet;
835 	char *p;
836 
837 	work = *sns;
838 	work.sns_addr.x_port = 0;
839 	work.sns_addr.x_net = ns_zeronet;
840 
841 	p = ns_print((struct sockaddr *)&work);
842 	if (strncmp("0H.", p, 3) == 0) p += 3;
843 	return(p);
844 }
845 #endif
846 
847 void
848 upHex(p0)
849 	char *p0;
850 {
851 	register char *p = p0;
852 	for (; *p; p++) switch (*p) {
853 
854 	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
855 		*p += ('A' - 'a');
856 	}
857 }
858