Annotation of src/usr.bin/systat/netstat.c, Revision 1.19
1.18 deraadt 1: /* $OpenBSD: netstat.c,v 1.17 2001/11/19 19:02:16 mpech 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
1.18 deraadt 41: static char rcsid[] = "$OpenBSD: netstat.c,v 1.17 2001/11/19 19:02:16 mpech 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)
1.19 ! pvalchev 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: }
1.19 ! pvalchev 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) {
1.19 ! pvalchev 198: off = NPTR(X_TCBTABLE);
1.1 deraadt 199: istcp = 1;
1.19 ! pvalchev 200: }
! 201: else if (protos&UDP) {
! 202: off = NPTR(X_UDBTABLE);
1.1 deraadt 203: istcp = 0;
1.19 ! pvalchev 204: }
! 205: else {
1.1 deraadt 206: error("No protocols to display");
207: return;
208: }
209: again:
210: KREAD(off, &pcbtable, sizeof (struct inpcbtable));
211: prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue;
212: next = pcbtable.inpt_queue.cqh_first;
213: while (next != head) {
214: KREAD(next, &inpcb, sizeof (inpcb));
215: if (inpcb.inp_queue.cqe_prev != prev) {
1.16 pvalchev 216: printf("prev = %p, head = %p, next = %p, inpcb...prev = %p\n", prev, head, next, inpcb.inp_queue.cqe_prev);
1.11 angelos 217: p = netcb.nif_forw;
218: for (; p != (struct netinfo *)&netcb; p = p->nif_forw)
219: p->nif_seen = 1;
1.1 deraadt 220: error("Kernel state in transition");
221: return;
222: }
223: prev = next;
224: next = inpcb.inp_queue.cqe_next;
225:
1.12 itojun 226: #ifndef INET6
227: if (inpcb.inp_flags & INP_IPV6)
1.1 deraadt 228: continue;
1.12 itojun 229: #endif
230:
231: if (!aflag) {
1.19 ! pvalchev 232: if (!(inpcb.inp_flags & INP_IPV6)
! 233: && inet_lnaof(inpcb.inp_laddr) == INADDR_ANY)
1.12 itojun 234: continue;
235: #ifdef INET6
1.19 ! pvalchev 236: if ((inpcb.inp_flags & INP_IPV6)
! 237: && IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_laddr6))
1.12 itojun 238: continue;
239: #endif
240: }
1.1 deraadt 241: if (nhosts && !checkhost(&inpcb))
242: continue;
243: if (nports && !checkport(&inpcb))
244: continue;
245: KREAD(inpcb.inp_socket, &sockb, sizeof (sockb));
246: if (istcp) {
247: KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb));
248: enter(&inpcb, &sockb, tcpcb.t_state, "tcp");
249: } else
250: enter(&inpcb, &sockb, 0, "udp");
251: }
252: if (istcp && (protos&UDP)) {
253: istcp = 0;
254: off = NPTR(X_UDBTABLE);
255: goto again;
256: }
257: }
258:
259: static void
260: enter(inp, so, state, proto)
1.17 mpech 261: struct inpcb *inp;
262: struct socket *so;
1.1 deraadt 263: int state;
264: char *proto;
265: {
1.17 mpech 266: struct netinfo *p;
1.1 deraadt 267:
268: /*
269: * Only take exact matches, any sockets with
270: * previously unbound addresses will be deleted
271: * below in the display routine because they
272: * will appear as ``not seen'' in the kernel
273: * data structures.
274: */
1.12 itojun 275: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw) {
276: #ifdef INET6
277: if (p->nif_family == AF_INET && (inp->inp_flags & INP_IPV6))
278: continue;
279: if (p->nif_family == AF_INET6 && !(inp->inp_flags & INP_IPV6))
280: continue;
281: #endif
1.11 angelos 282: if (!streq(proto, p->nif_proto))
1.1 deraadt 283: continue;
1.12 itojun 284: if (p->nif_family == AF_INET) {
285: if (p->nif_lport != inp->inp_lport ||
286: p->nif_laddr.s_addr != inp->inp_laddr.s_addr)
287: continue;
288: if (p->nif_faddr.s_addr == inp->inp_faddr.s_addr &&
289: p->nif_fport == inp->inp_fport)
290: break;
291:
292: }
293: #ifdef INET6
294: else if (p->nif_family == AF_INET6) {
295: if (p->nif_lport != inp->inp_lport ||
296: !IN6_ARE_ADDR_EQUAL(&p->nif_laddr6, &inp->inp_laddr6))
297: continue;
1.13 itojun 298: if (IN6_ARE_ADDR_EQUAL(&p->nif_faddr6, &inp->inp_faddr6) &&
1.12 itojun 299: p->nif_fport == inp->inp_fport)
300: break;
301: }
302: #endif
303: else
1.1 deraadt 304: continue;
305: }
306: if (p == (struct netinfo *)&netcb) {
307: if ((p = malloc(sizeof(*p))) == NULL) {
308: error("Out of memory");
309: return;
310: }
1.11 angelos 311: p->nif_prev = (struct netinfo *)&netcb;
312: p->nif_forw = netcb.nif_forw;
313: netcb.nif_forw->nif_prev = p;
314: netcb.nif_forw = p;
315: p->nif_line = -1;
316: p->nif_lport = inp->inp_lport;
317: p->nif_fport = inp->inp_fport;
318: p->nif_proto = proto;
319: p->nif_flags = NIF_LACHG|NIF_FACHG;
1.12 itojun 320: #ifdef INET6
321: if (inp->inp_flags & INP_IPV6) {
322: p->nif_laddr6 = inp->inp_laddr6;
323: p->nif_faddr6 = inp->inp_faddr6;
324: p->nif_family = AF_INET6;
1.19 ! pvalchev 325: }
! 326: else
1.12 itojun 327: #endif
328: {
329: p->nif_laddr = inp->inp_laddr;
330: p->nif_faddr = inp->inp_faddr;
331: p->nif_family = AF_INET;
332: }
1.11 angelos 333: }
334: p->nif_rcvcc = so->so_rcv.sb_cc;
335: p->nif_sndcc = so->so_snd.sb_cc;
336: p->nif_state = state;
337: p->nif_seen = 1;
1.1 deraadt 338: }
339:
340: /* column locations */
341: #define LADDR 0
342: #define FADDR LADDR+23
343: #define PROTO FADDR+23
344: #define RCVCC PROTO+6
345: #define SNDCC RCVCC+7
346: #define STATE SNDCC+7
347:
348:
349: void
350: labelnetstat()
351: {
352: if (namelist[X_TCBTABLE].n_type == 0)
353: return;
354: wmove(wnd, 0, 0); wclrtobot(wnd);
355: mvwaddstr(wnd, 0, LADDR, "Local Address");
356: mvwaddstr(wnd, 0, FADDR, "Foreign Address");
357: mvwaddstr(wnd, 0, PROTO, "Proto");
358: mvwaddstr(wnd, 0, RCVCC, "Recv-Q");
359: mvwaddstr(wnd, 0, SNDCC, "Send-Q");
1.19 ! pvalchev 360: mvwaddstr(wnd, 0, STATE, "(state)");
1.1 deraadt 361: }
362:
363: void
364: shownetstat()
365: {
1.17 mpech 366: struct netinfo *p, *q;
1.1 deraadt 367:
368: /*
369: * First, delete any connections that have gone
370: * away and adjust the position of connections
371: * below to reflect the deleted line.
372: */
1.11 angelos 373: p = netcb.nif_forw;
1.1 deraadt 374: while (p != (struct netinfo *)&netcb) {
1.11 angelos 375: if (p->nif_line == -1 || p->nif_seen) {
376: p = p->nif_forw;
1.1 deraadt 377: continue;
378: }
1.11 angelos 379: wmove(wnd, p->nif_line, 0); wdeleteln(wnd);
380: q = netcb.nif_forw;
381: for (; q != (struct netinfo *)&netcb; q = q->nif_forw)
382: if (q != p && q->nif_line > p->nif_line) {
383: q->nif_line--;
1.1 deraadt 384: /* this shouldn't be necessary */
1.11 angelos 385: q->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 386: }
387: lastrow--;
1.11 angelos 388: q = p->nif_forw;
389: p->nif_prev->nif_forw = p->nif_forw;
390: p->nif_forw->nif_prev = p->nif_prev;
1.1 deraadt 391: free(p);
392: p = q;
393: }
394: /*
395: * Update existing connections and add new ones.
396: */
1.12 itojun 397: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw) {
1.11 angelos 398: if (p->nif_line == -1) {
1.1 deraadt 399: /*
400: * Add a new entry if possible.
401: */
402: if (lastrow > YMAX(wnd))
403: continue;
1.11 angelos 404: p->nif_line = lastrow++;
405: p->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 406: }
1.11 angelos 407: if (p->nif_flags & NIF_LACHG) {
408: wmove(wnd, p->nif_line, LADDR);
1.12 itojun 409: switch (p->nif_family) {
410: case AF_INET:
411: inetprint(&p->nif_laddr, p->nif_lport,
412: p->nif_proto);
413: break;
414: #ifdef INET6
415: case AF_INET6:
416: inet6print(&p->nif_laddr6, p->nif_lport,
417: p->nif_proto);
418: break;
419: #endif
420: }
1.11 angelos 421: p->nif_flags &= ~NIF_LACHG;
1.1 deraadt 422: }
1.11 angelos 423: if (p->nif_flags & NIF_FACHG) {
424: wmove(wnd, p->nif_line, FADDR);
1.12 itojun 425: switch (p->nif_family) {
426: case AF_INET:
427: inetprint(&p->nif_faddr, p->nif_fport,
428: p->nif_proto);
429: break;
430: #ifdef INET6
431: case AF_INET6:
432: inet6print(&p->nif_faddr6, p->nif_fport,
433: p->nif_proto);
434: break;
435: #endif
436: }
1.11 angelos 437: p->nif_flags &= ~NIF_FACHG;
1.1 deraadt 438: }
1.11 angelos 439: mvwaddstr(wnd, p->nif_line, PROTO, p->nif_proto);
1.12 itojun 440: #ifdef INET6
441: if (p->nif_family == AF_INET6)
442: waddstr(wnd, "6");
443: #endif
1.11 angelos 444: mvwprintw(wnd, p->nif_line, RCVCC, "%6d", p->nif_rcvcc);
445: mvwprintw(wnd, p->nif_line, SNDCC, "%6d", p->nif_sndcc);
1.19 ! pvalchev 446: if (streq(p->nif_proto, "tcp"))
1.11 angelos 447: if (p->nif_state < 0 || p->nif_state >= TCP_NSTATES)
448: mvwprintw(wnd, p->nif_line, STATE, "%d",
449: p->nif_state);
1.1 deraadt 450: else
1.11 angelos 451: mvwaddstr(wnd, p->nif_line, STATE,
452: tcpstates[p->nif_state]);
1.1 deraadt 453: wclrtoeol(wnd);
454: }
455: if (lastrow < YMAX(wnd)) {
456: wmove(wnd, lastrow, 0); wclrtobot(wnd);
457: wmove(wnd, YMAX(wnd), 0); wdeleteln(wnd); /* XXX */
458: }
459: }
460:
461: /*
462: * Pretty print an Internet address (net address + port).
463: * If the nflag was specified, use numbers instead of names.
464: */
465: static void
466: inetprint(in, port, proto)
1.17 mpech 467: struct in_addr *in;
1.1 deraadt 468: int port;
469: char *proto;
470: {
471: struct servent *sp = 0;
1.6 millert 472: char line[80], *cp;
1.1 deraadt 473:
1.8 deraadt 474: snprintf(line, sizeof line, "%.*s.", 16, inetname(*in));
1.6 millert 475: cp = strchr(line, '\0');
1.1 deraadt 476: if (!nflag && port)
477: sp = getservbyport(port, proto);
478: if (sp || port == 0)
1.8 deraadt 479: snprintf(cp, sizeof line - strlen(cp), "%.8s",
480: sp ? sp->s_name : "*");
1.1 deraadt 481: else
1.8 deraadt 482: snprintf(cp, sizeof line - strlen(cp), "%d",
483: ntohs((u_short)port));
1.1 deraadt 484: /* pad to full column to clear any garbage */
1.6 millert 485: cp = strchr(line, '\0');
1.10 deraadt 486: while (cp - line < 22 && cp - line < sizeof line-1)
1.1 deraadt 487: *cp++ = ' ';
488: *cp = '\0';
489: waddstr(wnd, line);
490: }
491:
1.12 itojun 492: #ifdef INET6
493: static void
494: inet6print(in6, port, proto)
1.17 mpech 495: struct in6_addr *in6;
1.12 itojun 496: int port;
497: char *proto;
498: {
499: struct servent *sp = 0;
500: char line[80], *cp;
501:
502: snprintf(line, sizeof line, "%.*s.", 16, inet6name(in6));
503: cp = strchr(line, '\0');
504: if (!nflag && port)
505: sp = getservbyport(port, proto);
506: if (sp || port == 0)
507: snprintf(cp, sizeof line - strlen(cp), "%.8s",
508: sp ? sp->s_name : "*");
509: else
510: snprintf(cp, sizeof line - strlen(cp), "%d",
511: ntohs((u_short)port));
512: /* pad to full column to clear any garbage */
513: cp = strchr(line, '\0');
514: while (cp - line < 22 && cp - line < sizeof line-1)
515: *cp++ = ' ';
516: *cp = '\0';
517: waddstr(wnd, line);
518: }
519: #endif
520:
1.1 deraadt 521: /*
522: * Construct an Internet address representation.
1.19 ! pvalchev 523: * If the nflag has been supplied, give
1.1 deraadt 524: * numeric value, otherwise try for symbolic name.
525: */
1.12 itojun 526: static const char *
1.1 deraadt 527: inetname(in)
528: struct in_addr in;
529: {
530: char *cp = 0;
531: static char line[50];
532: struct hostent *hp;
533: struct netent *np;
534:
535: if (!nflag && in.s_addr != INADDR_ANY) {
536: int net = inet_netof(in);
537: int lna = inet_lnaof(in);
538:
539: if (lna == INADDR_ANY) {
540: np = getnetbyaddr(net, AF_INET);
541: if (np)
542: cp = np->n_name;
543: }
544: if (cp == 0) {
545: hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
546: if (hp)
547: cp = hp->h_name;
548: }
549: }
1.9 deraadt 550: if (in.s_addr == INADDR_ANY) {
1.15 lebel 551: strlcpy(line, "*", sizeof line);
1.9 deraadt 552: } else if (cp) {
1.15 lebel 553: strlcpy(line, cp, sizeof line);
1.9 deraadt 554: } else {
1.1 deraadt 555: in.s_addr = ntohl(in.s_addr);
556: #define C(x) ((x) & 0xff)
1.8 deraadt 557: snprintf(line, sizeof line, "%u.%u.%u.%u", C(in.s_addr >> 24),
1.19 ! pvalchev 558: C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
1.1 deraadt 559: }
560: return (line);
561: }
1.12 itojun 562:
563: #ifdef INET6
564: static const char *
565: inet6name(in6)
566: struct in6_addr *in6;
567: {
568: static char line[NI_MAXHOST];
569: struct sockaddr_in6 sin6;
570: int flags;
571:
572: if (nflag)
573: flags = NI_NUMERICHOST;
574: else
575: flags = 0;
576: if (IN6_IS_ADDR_UNSPECIFIED(in6))
577: return "*";
578: memset(&sin6, 0, sizeof(sin6));
579: sin6.sin6_family = AF_INET6;
580: sin6.sin6_len = sizeof(struct sockaddr_in6);
581: sin6.sin6_addr = *in6;
582: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.19 ! pvalchev 583: line, sizeof(line), NULL, 0, flags) == 0)
1.12 itojun 584: return line;
585: return "?";
586: }
587: #endif
1.1 deraadt 588:
589: int
590: cmdnetstat(cmd, args)
591: char *cmd, *args;
592: {
1.17 mpech 593: struct netinfo *p;
1.1 deraadt 594:
595: if (prefix(cmd, "all")) {
596: aflag = !aflag;
597: goto fixup;
598: }
599: if (prefix(cmd, "numbers") || prefix(cmd, "names")) {
600: int new;
601:
602: new = prefix(cmd, "numbers");
603: if (new == nflag)
604: return (1);
1.11 angelos 605: p = netcb.nif_forw;
606: for (; p != (struct netinfo *)&netcb; p = p->nif_forw) {
607: if (p->nif_line == -1)
1.1 deraadt 608: continue;
1.11 angelos 609: p->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 610: }
611: nflag = new;
1.4 deraadt 612: wclear(wnd);
613: labelnetstat();
1.1 deraadt 614: goto redisplay;
615: }
616: if (!netcmd(cmd, args))
617: return (0);
618: fixup:
619: fetchnetstat();
620: redisplay:
621: shownetstat();
622: refresh();
623: return (1);
624: }
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