Annotation of src/usr.bin/systat/netstat.c, Revision 1.22
1.22 ! deraadt 1: /* $OpenBSD: netstat.c,v 1.21 2002/02/16 21:27:54 millert 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
1.22 ! deraadt 41: static char rcsid[] = "$OpenBSD: netstat.c,v 1.21 2002/02/16 21:27:54 millert 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:
1.21 millert 82: static void enter(struct inpcb *, struct socket *, int, char *);
83: static const char *inetname(struct in_addr);
84: static void inetprint(struct in_addr *, int, char *);
1.12 itojun 85: #ifdef INET6
1.21 millert 86: static const char *inet6name(struct in6_addr *);
87: static void inet6print(struct in6_addr *, int, char *);
1.12 itojun 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 *
1.22 ! deraadt 94: opennetstat(void)
1.1 deraadt 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
1.22 ! deraadt 134: closenetstat(WINDOW *w)
1.1 deraadt 135: {
1.17 mpech 136: struct netinfo *p;
1.1 deraadt 137:
138: endhostent();
139: endnetent();
1.11 angelos 140: p = (struct netinfo *)netcb.nif_forw;
1.1 deraadt 141: while (p != (struct netinfo *)&netcb) {
1.11 angelos 142: if (p->nif_line != -1)
1.1 deraadt 143: lastrow--;
1.11 angelos 144: p->nif_line = -1;
145: p = p->nif_forw;
1.1 deraadt 146: }
1.20 deraadt 147: if (w != NULL) {
1.1 deraadt 148: wclear(w);
149: wrefresh(w);
150: delwin(w);
151: }
152: }
153:
154: static struct nlist namelist[] = {
155: #define X_TCBTABLE 0
156: { "_tcbtable" },
157: #define X_UDBTABLE 1
158: { "_udbtable" },
159: { "" },
160: };
161:
162: int
1.22 ! deraadt 163: initnetstat(void)
1.1 deraadt 164: {
1.14 ericj 165: int ret;
166:
167: if ((ret = kvm_nlist(kd, namelist)) == -1)
168: errx(1, "%s", kvm_geterr(kd));
169: else if (ret)
1.1 deraadt 170: nlisterr(namelist);
171: if (namelist[X_TCBTABLE].n_value == 0) {
172: error("No symbols in namelist");
173: return(0);
174: }
1.11 angelos 175: netcb.nif_forw = netcb.nif_prev = (struct netinfo *)&netcb;
1.1 deraadt 176: protos = TCP|UDP;
177: return(1);
178: }
179:
180: void
1.22 ! deraadt 181: fetchnetstat(void)
1.1 deraadt 182: {
183: struct inpcbtable pcbtable;
1.17 mpech 184: struct inpcb *head, *prev, *next;
185: struct netinfo *p;
1.1 deraadt 186: struct inpcb inpcb;
187: struct socket sockb;
188: struct tcpcb tcpcb;
189: void *off;
190: int istcp;
191:
192: if (namelist[X_TCBTABLE].n_value == 0)
193: return;
1.11 angelos 194: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw)
195: p->nif_seen = 0;
1.1 deraadt 196: if (protos&TCP) {
1.20 deraadt 197: off = NPTR(X_TCBTABLE);
1.1 deraadt 198: istcp = 1;
1.20 deraadt 199: } else if (protos&UDP) {
200: off = NPTR(X_UDBTABLE);
1.1 deraadt 201: istcp = 0;
1.20 deraadt 202: } else {
1.1 deraadt 203: error("No protocols to display");
204: return;
205: }
206: again:
207: KREAD(off, &pcbtable, sizeof (struct inpcbtable));
208: prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue;
209: next = pcbtable.inpt_queue.cqh_first;
210: while (next != head) {
211: KREAD(next, &inpcb, sizeof (inpcb));
212: if (inpcb.inp_queue.cqe_prev != prev) {
1.22 ! deraadt 213: printf("prev = %p, head = %p, next = %p, inpcb...prev = %p\n",
! 214: 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
1.22 ! deraadt 258: enter(struct inpcb *inp, struct socket *so, int state, char *proto)
1.1 deraadt 259: {
1.17 mpech 260: struct netinfo *p;
1.1 deraadt 261:
262: /*
263: * Only take exact matches, any sockets with
264: * previously unbound addresses will be deleted
265: * below in the display routine because they
266: * will appear as ``not seen'' in the kernel
267: * data structures.
268: */
1.12 itojun 269: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw) {
270: #ifdef INET6
271: if (p->nif_family == AF_INET && (inp->inp_flags & INP_IPV6))
272: continue;
273: if (p->nif_family == AF_INET6 && !(inp->inp_flags & INP_IPV6))
274: continue;
275: #endif
1.11 angelos 276: if (!streq(proto, p->nif_proto))
1.1 deraadt 277: continue;
1.12 itojun 278: if (p->nif_family == AF_INET) {
279: if (p->nif_lport != inp->inp_lport ||
280: p->nif_laddr.s_addr != inp->inp_laddr.s_addr)
281: continue;
282: if (p->nif_faddr.s_addr == inp->inp_faddr.s_addr &&
283: p->nif_fport == inp->inp_fport)
284: break;
285:
286: }
287: #ifdef INET6
288: else if (p->nif_family == AF_INET6) {
289: if (p->nif_lport != inp->inp_lport ||
290: !IN6_ARE_ADDR_EQUAL(&p->nif_laddr6, &inp->inp_laddr6))
291: continue;
1.13 itojun 292: if (IN6_ARE_ADDR_EQUAL(&p->nif_faddr6, &inp->inp_faddr6) &&
1.12 itojun 293: p->nif_fport == inp->inp_fport)
294: break;
295: }
296: #endif
297: else
1.1 deraadt 298: continue;
299: }
300: if (p == (struct netinfo *)&netcb) {
301: if ((p = malloc(sizeof(*p))) == NULL) {
302: error("Out of memory");
303: return;
304: }
1.11 angelos 305: p->nif_prev = (struct netinfo *)&netcb;
306: p->nif_forw = netcb.nif_forw;
307: netcb.nif_forw->nif_prev = p;
308: netcb.nif_forw = p;
309: p->nif_line = -1;
310: p->nif_lport = inp->inp_lport;
311: p->nif_fport = inp->inp_fport;
312: p->nif_proto = proto;
313: p->nif_flags = NIF_LACHG|NIF_FACHG;
1.12 itojun 314: #ifdef INET6
315: if (inp->inp_flags & INP_IPV6) {
316: p->nif_laddr6 = inp->inp_laddr6;
317: p->nif_faddr6 = inp->inp_faddr6;
318: p->nif_family = AF_INET6;
1.20 deraadt 319: } else
1.12 itojun 320: #endif
321: {
322: p->nif_laddr = inp->inp_laddr;
323: p->nif_faddr = inp->inp_faddr;
324: p->nif_family = AF_INET;
325: }
1.11 angelos 326: }
327: p->nif_rcvcc = so->so_rcv.sb_cc;
328: p->nif_sndcc = so->so_snd.sb_cc;
329: p->nif_state = state;
330: p->nif_seen = 1;
1.1 deraadt 331: }
332:
333: /* column locations */
334: #define LADDR 0
335: #define FADDR LADDR+23
336: #define PROTO FADDR+23
337: #define RCVCC PROTO+6
338: #define SNDCC RCVCC+7
339: #define STATE SNDCC+7
340:
341:
342: void
1.22 ! deraadt 343: labelnetstat(void)
1.1 deraadt 344: {
345: if (namelist[X_TCBTABLE].n_type == 0)
346: return;
347: wmove(wnd, 0, 0); wclrtobot(wnd);
348: mvwaddstr(wnd, 0, LADDR, "Local Address");
349: mvwaddstr(wnd, 0, FADDR, "Foreign Address");
350: mvwaddstr(wnd, 0, PROTO, "Proto");
351: mvwaddstr(wnd, 0, RCVCC, "Recv-Q");
352: mvwaddstr(wnd, 0, SNDCC, "Send-Q");
1.20 deraadt 353: mvwaddstr(wnd, 0, STATE, "(state)");
1.1 deraadt 354: }
355:
356: void
1.22 ! deraadt 357: shownetstat(void)
1.1 deraadt 358: {
1.17 mpech 359: struct netinfo *p, *q;
1.1 deraadt 360:
361: /*
362: * First, delete any connections that have gone
363: * away and adjust the position of connections
364: * below to reflect the deleted line.
365: */
1.11 angelos 366: p = netcb.nif_forw;
1.1 deraadt 367: while (p != (struct netinfo *)&netcb) {
1.11 angelos 368: if (p->nif_line == -1 || p->nif_seen) {
369: p = p->nif_forw;
1.1 deraadt 370: continue;
371: }
1.11 angelos 372: wmove(wnd, p->nif_line, 0); wdeleteln(wnd);
373: q = netcb.nif_forw;
374: for (; q != (struct netinfo *)&netcb; q = q->nif_forw)
375: if (q != p && q->nif_line > p->nif_line) {
376: q->nif_line--;
1.1 deraadt 377: /* this shouldn't be necessary */
1.11 angelos 378: q->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 379: }
380: lastrow--;
1.11 angelos 381: q = p->nif_forw;
382: p->nif_prev->nif_forw = p->nif_forw;
383: p->nif_forw->nif_prev = p->nif_prev;
1.1 deraadt 384: free(p);
385: p = q;
386: }
387: /*
388: * Update existing connections and add new ones.
389: */
1.12 itojun 390: for (p = netcb.nif_forw; p != (struct netinfo *)&netcb; p = p->nif_forw) {
1.11 angelos 391: if (p->nif_line == -1) {
1.1 deraadt 392: /*
393: * Add a new entry if possible.
394: */
395: if (lastrow > YMAX(wnd))
396: continue;
1.11 angelos 397: p->nif_line = lastrow++;
398: p->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 399: }
1.11 angelos 400: if (p->nif_flags & NIF_LACHG) {
401: wmove(wnd, p->nif_line, LADDR);
1.12 itojun 402: switch (p->nif_family) {
403: case AF_INET:
404: inetprint(&p->nif_laddr, p->nif_lport,
405: p->nif_proto);
406: break;
407: #ifdef INET6
408: case AF_INET6:
409: inet6print(&p->nif_laddr6, p->nif_lport,
410: p->nif_proto);
411: break;
412: #endif
413: }
1.11 angelos 414: p->nif_flags &= ~NIF_LACHG;
1.1 deraadt 415: }
1.11 angelos 416: if (p->nif_flags & NIF_FACHG) {
417: wmove(wnd, p->nif_line, FADDR);
1.12 itojun 418: switch (p->nif_family) {
419: case AF_INET:
420: inetprint(&p->nif_faddr, p->nif_fport,
421: p->nif_proto);
422: break;
423: #ifdef INET6
424: case AF_INET6:
425: inet6print(&p->nif_faddr6, p->nif_fport,
426: p->nif_proto);
427: break;
428: #endif
429: }
1.11 angelos 430: p->nif_flags &= ~NIF_FACHG;
1.1 deraadt 431: }
1.11 angelos 432: mvwaddstr(wnd, p->nif_line, PROTO, p->nif_proto);
1.12 itojun 433: #ifdef INET6
434: if (p->nif_family == AF_INET6)
435: waddstr(wnd, "6");
436: #endif
1.11 angelos 437: mvwprintw(wnd, p->nif_line, RCVCC, "%6d", p->nif_rcvcc);
438: mvwprintw(wnd, p->nif_line, SNDCC, "%6d", p->nif_sndcc);
1.20 deraadt 439: if (streq(p->nif_proto, "tcp")) {
1.11 angelos 440: if (p->nif_state < 0 || p->nif_state >= TCP_NSTATES)
441: mvwprintw(wnd, p->nif_line, STATE, "%d",
442: p->nif_state);
1.1 deraadt 443: else
1.11 angelos 444: mvwaddstr(wnd, p->nif_line, STATE,
445: tcpstates[p->nif_state]);
1.20 deraadt 446: }
1.1 deraadt 447: wclrtoeol(wnd);
448: }
449: if (lastrow < YMAX(wnd)) {
450: wmove(wnd, lastrow, 0); wclrtobot(wnd);
451: wmove(wnd, YMAX(wnd), 0); wdeleteln(wnd); /* XXX */
452: }
453: }
454:
455: /*
456: * Pretty print an Internet address (net address + port).
457: * If the nflag was specified, use numbers instead of names.
458: */
459: static void
1.22 ! deraadt 460: inetprint(struct in_addr *in, int port, char *proto)
1.1 deraadt 461: {
462: struct servent *sp = 0;
1.6 millert 463: char line[80], *cp;
1.1 deraadt 464:
1.8 deraadt 465: snprintf(line, sizeof line, "%.*s.", 16, inetname(*in));
1.6 millert 466: cp = strchr(line, '\0');
1.1 deraadt 467: if (!nflag && port)
468: sp = getservbyport(port, proto);
469: if (sp || port == 0)
1.8 deraadt 470: snprintf(cp, sizeof line - strlen(cp), "%.8s",
471: sp ? sp->s_name : "*");
1.1 deraadt 472: else
1.8 deraadt 473: snprintf(cp, sizeof line - strlen(cp), "%d",
474: ntohs((u_short)port));
1.1 deraadt 475: /* pad to full column to clear any garbage */
1.6 millert 476: cp = strchr(line, '\0');
1.10 deraadt 477: while (cp - line < 22 && cp - line < sizeof line-1)
1.1 deraadt 478: *cp++ = ' ';
479: *cp = '\0';
480: waddstr(wnd, line);
481: }
482:
1.12 itojun 483: #ifdef INET6
484: static void
1.22 ! deraadt 485: inet6print(struct in6_addr *in6, int port, char *proto)
1.12 itojun 486: {
487: struct servent *sp = 0;
488: char line[80], *cp;
489:
490: snprintf(line, sizeof line, "%.*s.", 16, inet6name(in6));
491: cp = strchr(line, '\0');
492: if (!nflag && port)
493: sp = getservbyport(port, proto);
494: if (sp || port == 0)
495: snprintf(cp, sizeof line - strlen(cp), "%.8s",
496: sp ? sp->s_name : "*");
497: else
498: snprintf(cp, sizeof line - strlen(cp), "%d",
499: ntohs((u_short)port));
500: /* pad to full column to clear any garbage */
501: cp = strchr(line, '\0');
502: while (cp - line < 22 && cp - line < sizeof line-1)
503: *cp++ = ' ';
504: *cp = '\0';
505: waddstr(wnd, line);
506: }
507: #endif
508:
1.1 deraadt 509: /*
510: * Construct an Internet address representation.
1.20 deraadt 511: * If the nflag has been supplied, give
1.1 deraadt 512: * numeric value, otherwise try for symbolic name.
513: */
1.12 itojun 514: static const char *
1.22 ! deraadt 515: inetname(struct in_addr in)
1.1 deraadt 516: {
517: char *cp = 0;
518: static char line[50];
519: struct hostent *hp;
520: struct netent *np;
521:
522: if (!nflag && in.s_addr != INADDR_ANY) {
523: int net = inet_netof(in);
524: int lna = inet_lnaof(in);
525:
526: if (lna == INADDR_ANY) {
527: np = getnetbyaddr(net, AF_INET);
528: if (np)
529: cp = np->n_name;
530: }
531: if (cp == 0) {
532: hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
533: if (hp)
534: cp = hp->h_name;
535: }
536: }
1.9 deraadt 537: if (in.s_addr == INADDR_ANY) {
1.15 lebel 538: strlcpy(line, "*", sizeof line);
1.9 deraadt 539: } else if (cp) {
1.15 lebel 540: strlcpy(line, cp, sizeof line);
1.9 deraadt 541: } else {
1.1 deraadt 542: in.s_addr = ntohl(in.s_addr);
543: #define C(x) ((x) & 0xff)
1.8 deraadt 544: snprintf(line, sizeof line, "%u.%u.%u.%u", C(in.s_addr >> 24),
1.20 deraadt 545: C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
1.1 deraadt 546: }
547: return (line);
548: }
1.12 itojun 549:
550: #ifdef INET6
551: static const char *
1.22 ! deraadt 552: inet6name(struct in6_addr *in6)
1.12 itojun 553: {
554: static char line[NI_MAXHOST];
555: struct sockaddr_in6 sin6;
556: int flags;
557:
558: if (nflag)
559: flags = NI_NUMERICHOST;
560: else
561: flags = 0;
562: if (IN6_IS_ADDR_UNSPECIFIED(in6))
563: return "*";
564: memset(&sin6, 0, sizeof(sin6));
565: sin6.sin6_family = AF_INET6;
566: sin6.sin6_len = sizeof(struct sockaddr_in6);
567: sin6.sin6_addr = *in6;
568: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.20 deraadt 569: line, sizeof(line), NULL, 0, flags) == 0)
1.12 itojun 570: return line;
571: return "?";
572: }
573: #endif
1.1 deraadt 574:
575: int
1.22 ! deraadt 576: cmdnetstat(char *cmd, char *args)
1.1 deraadt 577: {
1.17 mpech 578: struct netinfo *p;
1.1 deraadt 579:
580: if (prefix(cmd, "all")) {
581: aflag = !aflag;
582: goto fixup;
583: }
584: if (prefix(cmd, "numbers") || prefix(cmd, "names")) {
585: int new;
586:
587: new = prefix(cmd, "numbers");
588: if (new == nflag)
589: return (1);
1.11 angelos 590: p = netcb.nif_forw;
591: for (; p != (struct netinfo *)&netcb; p = p->nif_forw) {
592: if (p->nif_line == -1)
1.1 deraadt 593: continue;
1.11 angelos 594: p->nif_flags |= NIF_LACHG|NIF_FACHG;
1.1 deraadt 595: }
596: nflag = new;
1.4 deraadt 597: wclear(wnd);
598: labelnetstat();
1.1 deraadt 599: goto redisplay;
600: }
601: if (!netcmd(cmd, args))
602: return (0);
603: fixup:
604: fetchnetstat();
605: redisplay:
606: shownetstat();
607: refresh();
608: return (1);
609: }
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