Annotation of src/usr.bin/systat/netstat.c, Revision 1.20
1.20 ! deraadt 1: /* $OpenBSD: netstat.c,v 1.18 2001/11/23 22:20:06 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: netstat.c,v 1.3 1995/06/18 23:53:07 cgd Exp $ */
3:
4: /*-
5: * Copyright (c) 1980, 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: #if 0
39: static char sccsid[] = "@(#)netstat.c 8.1 (Berkeley) 6/6/93";
40: #endif
1.20 ! deraadt 41: static char rcsid[] = "$OpenBSD: netstat.c,v 1.18 2001/11/23 22:20:06 deraadt Exp $";
1.1 deraadt 42: #endif /* not lint */
43:
44: /*
45: * netstat
46: */
47: #include <sys/param.h>
48: #include <sys/socket.h>
49: #include <sys/socketvar.h>
50: #include <sys/mbuf.h>
51: #include <sys/protosw.h>
52:
53: #include <netinet/in.h>
54: #include <net/route.h>
55: #include <netinet/in_systm.h>
56: #include <netinet/ip.h>
57: #include <netinet/in_pcb.h>
58: #include <netinet/ip_icmp.h>
59: #include <netinet/icmp_var.h>
60: #include <netinet/ip_var.h>
61: #include <netinet/tcp.h>
62: #include <netinet/tcpip.h>
63: #include <netinet/tcp_seq.h>
64: #define TCPSTATES
65: #include <netinet/tcp_fsm.h>
66: #include <netinet/tcp_timer.h>
67: #include <netinet/tcp_var.h>
68: #include <netinet/tcp_debug.h>
69: #include <netinet/udp.h>
70: #include <netinet/udp_var.h>
1.7 millert 71: #include <arpa/inet.h>
1.1 deraadt 72:
73: #include <netdb.h>
74: #include <stdlib.h>
75: #include <string.h>
1.16 pvalchev 76: #include <err.h>
1.1 deraadt 77: #include <nlist.h>
78: #include <paths.h>
79: #include "systat.h"
80: #include "extern.h"
81:
82: static void enter __P((struct inpcb *, struct socket *, int, char *));
1.12 itojun 83: static const char *inetname __P((struct in_addr));
1.1 deraadt 84: static void inetprint __P((struct in_addr *, int, char *));
1.12 itojun 85: #ifdef INET6
86: static const char *inet6name __P((struct in6_addr *));
87: static void inet6print __P((struct in6_addr *, int, char *));
88: #endif
1.1 deraadt 89:
90: #define streq(a,b) (strcmp(a,b)==0)
1.2 mickey 91: #define YMAX(w) ((w)->_maxy-1)
1.1 deraadt 92:
93: WINDOW *
94: opennetstat()
95: {
96: sethostent(1);
97: setnetent(1);
98: return (subwin(stdscr, LINES-5-1, 0, 5, 0));
99: }
100:
101: struct netinfo {
1.11 angelos 102: struct netinfo *nif_forw, *nif_prev;
1.12 itojun 103: int nif_family;
1.11 angelos 104: short nif_line; /* line on screen */
105: short nif_seen; /* 0 when not present in list */
106: short nif_flags;
1.1 deraadt 107: #define NIF_LACHG 0x1 /* local address changed */
108: #define NIF_FACHG 0x2 /* foreign address changed */
1.11 angelos 109: short nif_state; /* tcp state */
110: char *nif_proto; /* protocol */
111: struct in_addr nif_laddr; /* local address */
1.12 itojun 112: #ifdef INET6
113: struct in6_addr nif_laddr6; /* local address */
114: #endif
1.11 angelos 115: long nif_lport; /* local port */
116: struct in_addr nif_faddr; /* foreign address */
1.12 itojun 117: #ifdef INET6
118: struct in6_addr nif_faddr6; /* foreign address */
119: #endif
1.11 angelos 120: long nif_fport; /* foreign port */
121: long nif_rcvcc; /* rcv buffer character count */
122: long nif_sndcc; /* snd buffer character count */
1.1 deraadt 123: };
124:
125: static struct {
1.11 angelos 126: struct netinfo *nif_forw, *nif_prev;
1.1 deraadt 127: } netcb;
128:
129: static int aflag = 0;
130: static int nflag = 0;
131: static int lastrow = 1;
132:
133: void
134: closenetstat(w)
1.20 ! deraadt 135: WINDOW *w;
1.1 deraadt 136: {
1.17 mpech 137: struct netinfo *p;
1.1 deraadt 138:
139: endhostent();
140: endnetent();
1.11 angelos 141: p = (struct netinfo *)netcb.nif_forw;
1.1 deraadt 142: while (p != (struct netinfo *)&netcb) {
1.11 angelos 143: if (p->nif_line != -1)
1.1 deraadt 144: lastrow--;
1.11 angelos 145: p->nif_line = -1;
146: p = p->nif_forw;
1.1 deraadt 147: }
1.20 ! deraadt 148: if (w != NULL) {
1.1 deraadt 149: wclear(w);
150: wrefresh(w);
151: delwin(w);
152: }
153: }
154:
155: static struct nlist namelist[] = {
156: #define X_TCBTABLE 0
157: { "_tcbtable" },
158: #define X_UDBTABLE 1
159: { "_udbtable" },
160: { "" },
161: };
162:
163: int
164: initnetstat()
165: {
1.14 ericj 166: int ret;
167:
168: if ((ret = kvm_nlist(kd, namelist)) == -1)
169: errx(1, "%s", kvm_geterr(kd));
170: else if (ret)
1.1 deraadt 171: nlisterr(namelist);
172: if (namelist[X_TCBTABLE].n_value == 0) {
173: error("No symbols in namelist");
174: return(0);
175: }
1.11 angelos 176: netcb.nif_forw = netcb.nif_prev = (struct netinfo *)&netcb;
1.1 deraadt 177: protos = TCP|UDP;
178: return(1);
179: }
180:
181: void
182: fetchnetstat()
183: {
184: struct inpcbtable pcbtable;
1.17 mpech 185: struct inpcb *head, *prev, *next;
186: struct netinfo *p;
1.1 deraadt 187: struct inpcb inpcb;
188: struct socket sockb;
189: struct tcpcb tcpcb;
190: void *off;
191: int istcp;
192:
193: if (namelist[X_TCBTABLE].n_value == 0)
194: return;
1.11 angelos 195: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw)
196: p->nif_seen = 0;
1.1 deraadt 197: if (protos&TCP) {
1.20 ! deraadt 198: off = NPTR(X_TCBTABLE);
1.1 deraadt 199: istcp = 1;
1.20 ! deraadt 200: } else if (protos&UDP) {
! 201: off = NPTR(X_UDBTABLE);
1.1 deraadt 202: istcp = 0;
1.20 ! deraadt 203: } else {
1.1 deraadt 204: error("No protocols to display");
205: return;
206: }
207: again:
208: KREAD(off, &pcbtable, sizeof (struct inpcbtable));
209: prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue;
210: next = pcbtable.inpt_queue.cqh_first;
211: while (next != head) {
212: KREAD(next, &inpcb, sizeof (inpcb));
213: if (inpcb.inp_queue.cqe_prev != prev) {
1.16 pvalchev 214: printf("prev = %p, head = %p, next = %p, inpcb...prev = %p\n", prev, head, next, inpcb.inp_queue.cqe_prev);
1.11 angelos 215: p = netcb.nif_forw;
216: for (; p != (struct netinfo *)&netcb; p = p->nif_forw)
217: p->nif_seen = 1;
1.1 deraadt 218: error("Kernel state in transition");
219: return;
220: }
221: prev = next;
222: next = inpcb.inp_queue.cqe_next;
223:
1.12 itojun 224: #ifndef INET6
225: if (inpcb.inp_flags & INP_IPV6)
1.1 deraadt 226: continue;
1.12 itojun 227: #endif
228:
229: if (!aflag) {
1.20 ! deraadt 230: if (!(inpcb.inp_flags & INP_IPV6) &&
! 231: inet_lnaof(inpcb.inp_laddr) == INADDR_ANY)
1.12 itojun 232: continue;
233: #ifdef INET6
1.20 ! deraadt 234: if ((inpcb.inp_flags & INP_IPV6) &&
! 235: IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_laddr6))
1.12 itojun 236: continue;
237: #endif
238: }
1.1 deraadt 239: if (nhosts && !checkhost(&inpcb))
240: continue;
241: if (nports && !checkport(&inpcb))
242: continue;
243: KREAD(inpcb.inp_socket, &sockb, sizeof (sockb));
244: if (istcp) {
245: KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb));
246: enter(&inpcb, &sockb, tcpcb.t_state, "tcp");
247: } else
248: enter(&inpcb, &sockb, 0, "udp");
249: }
250: if (istcp && (protos&UDP)) {
251: istcp = 0;
252: off = NPTR(X_UDBTABLE);
253: goto again;
254: }
255: }
256:
257: static void
258: enter(inp, so, state, proto)
1.17 mpech 259: struct inpcb *inp;
260: struct socket *so;
1.1 deraadt 261: int state;
262: char *proto;
263: {
1.17 mpech 264: struct netinfo *p;
1.1 deraadt 265:
266: /*
267: * Only take exact matches, any sockets with
268: * previously unbound addresses will be deleted
269: * below in the display routine because they
270: * will appear as ``not seen'' in the kernel
271: * data structures.
272: */
1.12 itojun 273: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw) {
274: #ifdef INET6
275: if (p->nif_family == AF_INET && (inp->inp_flags & INP_IPV6))
276: continue;
277: if (p->nif_family == AF_INET6 && !(inp->inp_flags & INP_IPV6))
278: continue;
279: #endif
1.11 angelos 280: if (!streq(proto, p->nif_proto))
1.1 deraadt 281: continue;
1.12 itojun 282: if (p->nif_family == AF_INET) {
283: if (p->nif_lport != inp->inp_lport ||
284: p->nif_laddr.s_addr != inp->inp_laddr.s_addr)
285: continue;
286: if (p->nif_faddr.s_addr == inp->inp_faddr.s_addr &&
287: p->nif_fport == inp->inp_fport)
288: break;
289:
290: }
291: #ifdef INET6
292: else if (p->nif_family == AF_INET6) {
293: if (p->nif_lport != inp->inp_lport ||
294: !IN6_ARE_ADDR_EQUAL(&p->nif_laddr6, &inp->inp_laddr6))
295: continue;
1.13 itojun 296: if (IN6_ARE_ADDR_EQUAL(&p->nif_faddr6, &inp->inp_faddr6) &&
1.12 itojun 297: p->nif_fport == inp->inp_fport)
298: break;
299: }
300: #endif
301: else
1.1 deraadt 302: continue;
303: }
304: if (p == (struct netinfo *)&netcb) {
305: if ((p = malloc(sizeof(*p))) == NULL) {
306: error("Out of memory");
307: return;
308: }
1.11 angelos 309: p->nif_prev = (struct netinfo *)&netcb;
310: p->nif_forw = netcb.nif_forw;
311: netcb.nif_forw->nif_prev = p;
312: netcb.nif_forw = p;
313: p->nif_line = -1;
314: p->nif_lport = inp->inp_lport;
315: p->nif_fport = inp->inp_fport;
316: p->nif_proto = proto;
317: p->nif_flags = NIF_LACHG|NIF_FACHG;
1.12 itojun 318: #ifdef INET6
319: if (inp->inp_flags & INP_IPV6) {
320: p->nif_laddr6 = inp->inp_laddr6;
321: p->nif_faddr6 = inp->inp_faddr6;
322: p->nif_family = AF_INET6;
1.20 ! deraadt 323: } else
1.12 itojun 324: #endif
325: {
326: p->nif_laddr = inp->inp_laddr;
327: p->nif_faddr = inp->inp_faddr;
328: p->nif_family = AF_INET;
329: }
1.11 angelos 330: }
331: p->nif_rcvcc = so->so_rcv.sb_cc;
332: p->nif_sndcc = so->so_snd.sb_cc;
333: p->nif_state = state;
334: p->nif_seen = 1;
1.1 deraadt 335: }
336:
337: /* column locations */
338: #define LADDR 0
339: #define FADDR LADDR+23
340: #define PROTO FADDR+23
341: #define RCVCC PROTO+6
342: #define SNDCC RCVCC+7
343: #define STATE SNDCC+7
344:
345:
346: void
347: labelnetstat()
348: {
349: if (namelist[X_TCBTABLE].n_type == 0)
350: return;
351: wmove(wnd, 0, 0); wclrtobot(wnd);
352: mvwaddstr(wnd, 0, LADDR, "Local Address");
353: mvwaddstr(wnd, 0, FADDR, "Foreign Address");
354: mvwaddstr(wnd, 0, PROTO, "Proto");
355: mvwaddstr(wnd, 0, RCVCC, "Recv-Q");
356: mvwaddstr(wnd, 0, SNDCC, "Send-Q");
1.20 ! deraadt 357: mvwaddstr(wnd, 0, STATE, "(state)");
1.1 deraadt 358: }
359:
360: void
361: shownetstat()
362: {
1.17 mpech 363: struct netinfo *p, *q;
1.1 deraadt 364:
365: /*
366: * First, delete any connections that have gone
367: * away and adjust the position of connections
368: * below to reflect the deleted line.
369: */
1.11 angelos 370: p = netcb.nif_forw;
1.1 deraadt 371: while (p != (struct netinfo *)&netcb) {
1.11 angelos 372: if (p->nif_line == -1 || p->nif_seen) {
373: p = p->nif_forw;
1.1 deraadt 374: continue;
375: }
1.11 angelos 376: wmove(wnd, p->nif_line, 0); wdeleteln(wnd);
377: q = netcb.nif_forw;
378: for (; q != (struct netinfo *)&netcb; q = q->nif_forw)
379: if (q != p && q->nif_line > p->nif_line) {
380: q->nif_line--;
1.1 deraadt 381: /* this shouldn't be necessary */
1.11 angelos 382: q->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 383: }
384: lastrow--;
1.11 angelos 385: q = p->nif_forw;
386: p->nif_prev->nif_forw = p->nif_forw;
387: p->nif_forw->nif_prev = p->nif_prev;
1.1 deraadt 388: free(p);
389: p = q;
390: }
391: /*
392: * Update existing connections and add new ones.
393: */
1.12 itojun 394: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw) {
1.11 angelos 395: if (p->nif_line == -1) {
1.1 deraadt 396: /*
397: * Add a new entry if possible.
398: */
399: if (lastrow > YMAX(wnd))
400: continue;
1.11 angelos 401: p->nif_line = lastrow++;
402: p->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 403: }
1.11 angelos 404: if (p->nif_flags & NIF_LACHG) {
405: wmove(wnd, p->nif_line, LADDR);
1.12 itojun 406: switch (p->nif_family) {
407: case AF_INET:
408: inetprint(&p->nif_laddr, p->nif_lport,
409: p->nif_proto);
410: break;
411: #ifdef INET6
412: case AF_INET6:
413: inet6print(&p->nif_laddr6, p->nif_lport,
414: p->nif_proto);
415: break;
416: #endif
417: }
1.11 angelos 418: p->nif_flags &= ~NIF_LACHG;
1.1 deraadt 419: }
1.11 angelos 420: if (p->nif_flags & NIF_FACHG) {
421: wmove(wnd, p->nif_line, FADDR);
1.12 itojun 422: switch (p->nif_family) {
423: case AF_INET:
424: inetprint(&p->nif_faddr, p->nif_fport,
425: p->nif_proto);
426: break;
427: #ifdef INET6
428: case AF_INET6:
429: inet6print(&p->nif_faddr6, p->nif_fport,
430: p->nif_proto);
431: break;
432: #endif
433: }
1.11 angelos 434: p->nif_flags &= ~NIF_FACHG;
1.1 deraadt 435: }
1.11 angelos 436: mvwaddstr(wnd, p->nif_line, PROTO, p->nif_proto);
1.12 itojun 437: #ifdef INET6
438: if (p->nif_family == AF_INET6)
439: waddstr(wnd, "6");
440: #endif
1.11 angelos 441: mvwprintw(wnd, p->nif_line, RCVCC, "%6d", p->nif_rcvcc);
442: mvwprintw(wnd, p->nif_line, SNDCC, "%6d", p->nif_sndcc);
1.20 ! deraadt 443: if (streq(p->nif_proto, "tcp")) {
1.11 angelos 444: if (p->nif_state < 0 || p->nif_state >= TCP_NSTATES)
445: mvwprintw(wnd, p->nif_line, STATE, "%d",
446: p->nif_state);
1.1 deraadt 447: else
1.11 angelos 448: mvwaddstr(wnd, p->nif_line, STATE,
449: tcpstates[p->nif_state]);
1.20 ! deraadt 450: }
1.1 deraadt 451: wclrtoeol(wnd);
452: }
453: if (lastrow < YMAX(wnd)) {
454: wmove(wnd, lastrow, 0); wclrtobot(wnd);
455: wmove(wnd, YMAX(wnd), 0); wdeleteln(wnd); /* XXX */
456: }
457: }
458:
459: /*
460: * Pretty print an Internet address (net address + port).
461: * If the nflag was specified, use numbers instead of names.
462: */
463: static void
464: inetprint(in, port, proto)
1.17 mpech 465: struct in_addr *in;
1.1 deraadt 466: int port;
467: char *proto;
468: {
469: struct servent *sp = 0;
1.6 millert 470: char line[80], *cp;
1.1 deraadt 471:
1.8 deraadt 472: snprintf(line, sizeof line, "%.*s.", 16, inetname(*in));
1.6 millert 473: cp = strchr(line, '\0');
1.1 deraadt 474: if (!nflag && port)
475: sp = getservbyport(port, proto);
476: if (sp || port == 0)
1.8 deraadt 477: snprintf(cp, sizeof line - strlen(cp), "%.8s",
478: sp ? sp->s_name : "*");
1.1 deraadt 479: else
1.8 deraadt 480: snprintf(cp, sizeof line - strlen(cp), "%d",
481: ntohs((u_short)port));
1.1 deraadt 482: /* pad to full column to clear any garbage */
1.6 millert 483: cp = strchr(line, '\0');
1.10 deraadt 484: while (cp - line < 22 && cp - line < sizeof line-1)
1.1 deraadt 485: *cp++ = ' ';
486: *cp = '\0';
487: waddstr(wnd, line);
488: }
489:
1.12 itojun 490: #ifdef INET6
491: static void
492: inet6print(in6, port, proto)
1.17 mpech 493: struct in6_addr *in6;
1.12 itojun 494: int port;
495: char *proto;
496: {
497: struct servent *sp = 0;
498: char line[80], *cp;
499:
500: snprintf(line, sizeof line, "%.*s.", 16, inet6name(in6));
501: cp = strchr(line, '\0');
502: if (!nflag && port)
503: sp = getservbyport(port, proto);
504: if (sp || port == 0)
505: snprintf(cp, sizeof line - strlen(cp), "%.8s",
506: sp ? sp->s_name : "*");
507: else
508: snprintf(cp, sizeof line - strlen(cp), "%d",
509: ntohs((u_short)port));
510: /* pad to full column to clear any garbage */
511: cp = strchr(line, '\0');
512: while (cp - line < 22 && cp - line < sizeof line-1)
513: *cp++ = ' ';
514: *cp = '\0';
515: waddstr(wnd, line);
516: }
517: #endif
518:
1.1 deraadt 519: /*
520: * Construct an Internet address representation.
1.20 ! deraadt 521: * If the nflag has been supplied, give
1.1 deraadt 522: * numeric value, otherwise try for symbolic name.
523: */
1.12 itojun 524: static const char *
1.1 deraadt 525: inetname(in)
526: struct in_addr in;
527: {
528: char *cp = 0;
529: static char line[50];
530: struct hostent *hp;
531: struct netent *np;
532:
533: if (!nflag && in.s_addr != INADDR_ANY) {
534: int net = inet_netof(in);
535: int lna = inet_lnaof(in);
536:
537: if (lna == INADDR_ANY) {
538: np = getnetbyaddr(net, AF_INET);
539: if (np)
540: cp = np->n_name;
541: }
542: if (cp == 0) {
543: hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
544: if (hp)
545: cp = hp->h_name;
546: }
547: }
1.9 deraadt 548: if (in.s_addr == INADDR_ANY) {
1.15 lebel 549: strlcpy(line, "*", sizeof line);
1.9 deraadt 550: } else if (cp) {
1.15 lebel 551: strlcpy(line, cp, sizeof line);
1.9 deraadt 552: } else {
1.1 deraadt 553: in.s_addr = ntohl(in.s_addr);
554: #define C(x) ((x) & 0xff)
1.8 deraadt 555: snprintf(line, sizeof line, "%u.%u.%u.%u", C(in.s_addr >> 24),
1.20 ! deraadt 556: C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
1.1 deraadt 557: }
558: return (line);
559: }
1.12 itojun 560:
561: #ifdef INET6
562: static const char *
563: inet6name(in6)
564: struct in6_addr *in6;
565: {
566: static char line[NI_MAXHOST];
567: struct sockaddr_in6 sin6;
568: int flags;
569:
570: if (nflag)
571: flags = NI_NUMERICHOST;
572: else
573: flags = 0;
574: if (IN6_IS_ADDR_UNSPECIFIED(in6))
575: return "*";
576: memset(&sin6, 0, sizeof(sin6));
577: sin6.sin6_family = AF_INET6;
578: sin6.sin6_len = sizeof(struct sockaddr_in6);
579: sin6.sin6_addr = *in6;
580: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.20 ! deraadt 581: line, sizeof(line), NULL, 0, flags) == 0)
1.12 itojun 582: return line;
583: return "?";
584: }
585: #endif
1.1 deraadt 586:
587: int
588: cmdnetstat(cmd, args)
589: char *cmd, *args;
590: {
1.17 mpech 591: struct netinfo *p;
1.1 deraadt 592:
593: if (prefix(cmd, "all")) {
594: aflag = !aflag;
595: goto fixup;
596: }
597: if (prefix(cmd, "numbers") || prefix(cmd, "names")) {
598: int new;
599:
600: new = prefix(cmd, "numbers");
601: if (new == nflag)
602: return (1);
1.11 angelos 603: p = netcb.nif_forw;
604: for (; p != (struct netinfo *)&netcb; p = p->nif_forw) {
605: if (p->nif_line == -1)
1.1 deraadt 606: continue;
1.11 angelos 607: p->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 608: }
609: nflag = new;
1.4 deraadt 610: wclear(wnd);
611: labelnetstat();
1.1 deraadt 612: goto redisplay;
613: }
614: if (!netcmd(cmd, args))
615: return (0);
616: fixup:
617: fetchnetstat();
618: redisplay:
619: shownetstat();
620: refresh();
621: return (1);
622: }
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