netstat.c revision 1.22
1 /* $NetBSD: netstat.c,v 1.22 2003/05/17 21:03:21 itojun Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)netstat.c 8.1 (Berkeley) 6/6/93"; 40 #endif 41 __RCSID("$NetBSD: netstat.c,v 1.22 2003/05/17 21:03:21 itojun Exp $"); 42 #endif /* not lint */ 43 44 /* 45 * netstat 46 */ 47 #include <sys/param.h> 48 #include <sys/socketvar.h> 49 #include <sys/mbuf.h> 50 #include <sys/protosw.h> 51 52 #include <netinet/in.h> 53 54 #include <arpa/inet.h> 55 #include <net/route.h> 56 57 #include <netinet/in_systm.h> 58 #include <netinet/ip.h> 59 #include <netinet/in_pcb.h> 60 #include <netinet/ip_icmp.h> 61 #include <netinet/icmp_var.h> 62 #include <netinet/ip_var.h> 63 #ifdef INET6 64 #include <netinet/ip6.h> 65 #include <netinet6/in6_pcb.h> 66 #endif 67 #include <netinet/tcp.h> 68 #include <netinet/tcpip.h> 69 #include <netinet/tcp_seq.h> 70 #define TCPSTATES 71 #include <netinet/tcp_fsm.h> 72 #include <netinet/tcp_timer.h> 73 #include <netinet/tcp_var.h> 74 #include <netinet/tcp_debug.h> 75 #include <netinet/udp.h> 76 #include <netinet/udp_var.h> 77 78 #include <netdb.h> 79 #include <stdlib.h> 80 #include <string.h> 81 82 #include "systat.h" 83 #include "extern.h" 84 85 static void fetchnetstat4(void *, int); 86 static void enter(struct inpcb *, struct socket *, int, char *); 87 static const char *inetname(struct in_addr); 88 static void inetprint(struct in_addr *, int, char *); 89 #ifdef INET6 90 static void fetchnetstat6(void *, int); 91 static void enter6(struct in6pcb *, struct socket *, int, char *); 92 static const char *inet6name(struct in6_addr *); 93 static void inet6print(struct in6_addr *, int, char *); 94 #endif 95 96 #define streq(a,b) (strcmp(a,b)==0) 97 98 struct netinfo { 99 struct netinfo *ni_forw, *ni_prev; 100 int ni_family; 101 short ni_line; /* line on screen */ 102 short ni_seen; /* 0 when not present in list */ 103 short ni_flags; 104 #define NIF_LACHG 0x1 /* local address changed */ 105 #define NIF_FACHG 0x2 /* foreign address changed */ 106 short ni_state; /* tcp state */ 107 char *ni_proto; /* protocol */ 108 struct in_addr ni_laddr; /* local address */ 109 #ifdef INET6 110 struct in6_addr ni_laddr6; /* local address */ 111 #endif 112 long ni_lport; /* local port */ 113 struct in_addr ni_faddr; /* foreign address */ 114 #ifdef INET6 115 struct in6_addr ni_faddr6; /* foreign address */ 116 #endif 117 long ni_fport; /* foreign port */ 118 long ni_rcvcc; /* rcv buffer character count */ 119 long ni_sndcc; /* snd buffer character count */ 120 }; 121 122 static struct { 123 struct netinfo *ni_forw, *ni_prev; 124 } netcb; 125 126 static int aflag = 0; 127 int nflag = 0; 128 static int lastrow = 1; 129 130 WINDOW * 131 opennetstat(void) 132 { 133 134 sethostent(1); 135 setnetent(1); 136 return (subwin(stdscr, -1, 0, 5, 0)); 137 } 138 139 void 140 closenetstat(WINDOW *w) 141 { 142 struct netinfo *p; 143 144 endhostent(); 145 endnetent(); 146 p = (struct netinfo *)netcb.ni_forw; 147 while (p != (struct netinfo *)&netcb) { 148 if (p->ni_line != -1) 149 lastrow--; 150 p->ni_line = -1; 151 p = p->ni_forw; 152 } 153 if (w != NULL) { 154 wclear(w); 155 wrefresh(w); 156 delwin(w); 157 } 158 } 159 160 static struct nlist namelist[] = { 161 #define X_TCBTABLE 0 162 { "_tcbtable" }, 163 #define X_UDBTABLE 1 164 { "_udbtable" }, 165 #ifdef INET6 166 #define X_TCB6 2 167 { "_tcb6" }, 168 #define X_UDB6 3 169 { "_udb6" }, 170 #endif 171 { "" }, 172 }; 173 174 int 175 initnetstat(void) 176 { 177 int n; 178 179 n = kvm_nlist(kd, namelist); 180 if (n < 0) { 181 nlisterr(namelist); 182 return(0); 183 } else if (n == sizeof(namelist) / sizeof(namelist[0]) - 1) { 184 error("No symbols in namelist"); 185 return(0); 186 } 187 188 netcb.ni_forw = netcb.ni_prev = (struct netinfo *)&netcb; 189 protos = TCP|UDP; 190 return(1); 191 } 192 193 void 194 fetchnetstat(void) 195 { 196 struct netinfo *p; 197 198 if (namelist[X_TCBTABLE].n_value == 0) 199 return; 200 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) 201 p->ni_seen = 0; 202 203 if ((protos & (TCP | UDP)) == 0) { 204 error("No protocols to display"); 205 return; 206 } 207 if ((protos & TCP) && namelist[X_TCBTABLE].n_type) 208 fetchnetstat4(NPTR(X_TCBTABLE), 1); 209 if ((protos & UDP) && namelist[X_UDBTABLE].n_type) 210 fetchnetstat4(NPTR(X_UDBTABLE), 0); 211 #ifdef INET6 212 if ((protos & TCP) && namelist[X_TCB6].n_type) 213 fetchnetstat6(NPTR(X_TCB6), 1); 214 if ((protos & UDP) && namelist[X_UDB6].n_type) 215 fetchnetstat6(NPTR(X_UDB6), 0); 216 #endif 217 } 218 219 static void 220 fetchnetstat4(void *off, int istcp) 221 { 222 struct inpcbtable pcbtable; 223 struct inpcb *head, *prev, *next; 224 struct netinfo *p; 225 struct inpcb inpcb; 226 struct socket sockb; 227 struct tcpcb tcpcb; 228 229 KREAD(off, &pcbtable, sizeof pcbtable); 230 prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue; 231 next = pcbtable.inpt_queue.cqh_first; 232 while (next != head) { 233 KREAD(next, &inpcb, sizeof (inpcb)); 234 if (inpcb.inp_queue.cqe_prev != prev) { 235 printf("prev = %p, head = %p, next = %p, inpcb...prev = %p\n", prev, head, next, inpcb.inp_queue.cqe_prev); 236 p = netcb.ni_forw; 237 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) 238 p->ni_seen = 1; 239 error("Kernel state in transition"); 240 return; 241 } 242 prev = next; 243 next = inpcb.inp_queue.cqe_next; 244 245 if (!aflag && inet_lnaof(inpcb.inp_laddr) == INADDR_ANY) 246 continue; 247 if (nhosts && !checkhost(&inpcb)) 248 continue; 249 if (nports && !checkport(&inpcb)) 250 continue; 251 KREAD(inpcb.inp_socket, &sockb, sizeof (sockb)); 252 if (istcp) { 253 KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb)); 254 enter(&inpcb, &sockb, tcpcb.t_state, "tcp"); 255 } else 256 enter(&inpcb, &sockb, 0, "udp"); 257 } 258 } 259 260 #ifdef INET6 261 static void 262 fetchnetstat6(void *off, int istcp) 263 { 264 struct netinfo *p; 265 struct socket sockb; 266 struct tcpcb tcpcb; 267 struct in6pcb in6pcb; 268 struct in6pcb *head6, *prev6, *next6; 269 270 KREAD(off, &in6pcb, sizeof (struct in6pcb)); 271 prev6 = head6 = (struct in6pcb *)off; 272 next6 = in6pcb.in6p_next; 273 while (next6 != head6) { 274 KREAD(next6, &in6pcb, sizeof (in6pcb)); 275 if (in6pcb.in6p_prev != prev6) { 276 printf("prev = %p, head = %p, next = %p, in6pcb...prev = %p\n", prev6, head6, next6, in6pcb.in6p_prev); 277 p = netcb.ni_forw; 278 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) 279 p->ni_seen = 1; 280 error("Kernel state in transition"); 281 return; 282 } 283 prev6 = next6; 284 next6 = in6pcb.in6p_next; 285 286 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&in6pcb.in6p_laddr)) 287 continue; 288 if (nhosts && !checkhost6(&in6pcb)) 289 continue; 290 if (nports && !checkport6(&in6pcb)) 291 continue; 292 KREAD(in6pcb.in6p_socket, &sockb, sizeof (sockb)); 293 if (istcp) { 294 KREAD(in6pcb.in6p_ppcb, &tcpcb, sizeof (tcpcb)); 295 enter6(&in6pcb, &sockb, tcpcb.t_state, "tcp"); 296 } else 297 enter6(&in6pcb, &sockb, 0, "udp"); 298 } 299 } 300 #endif /*INET6*/ 301 302 static void 303 enter(struct inpcb *inp, struct socket *so, int state, char *proto) 304 { 305 struct netinfo *p; 306 307 /* 308 * Only take exact matches, any sockets with 309 * previously unbound addresses will be deleted 310 * below in the display routine because they 311 * will appear as ``not seen'' in the kernel 312 * data structures. 313 */ 314 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) { 315 if (p->ni_family != AF_INET) 316 continue; 317 if (!streq(proto, p->ni_proto)) 318 continue; 319 if (p->ni_lport != inp->inp_lport || 320 p->ni_laddr.s_addr != inp->inp_laddr.s_addr) 321 continue; 322 if (p->ni_faddr.s_addr == inp->inp_faddr.s_addr && 323 p->ni_fport == inp->inp_fport) 324 break; 325 } 326 if (p == (struct netinfo *)&netcb) { 327 if ((p = malloc(sizeof(*p))) == NULL) { 328 error("Out of memory"); 329 return; 330 } 331 p->ni_prev = (struct netinfo *)&netcb; 332 p->ni_forw = netcb.ni_forw; 333 netcb.ni_forw->ni_prev = p; 334 netcb.ni_forw = p; 335 p->ni_line = -1; 336 p->ni_laddr = inp->inp_laddr; 337 p->ni_lport = inp->inp_lport; 338 p->ni_faddr = inp->inp_faddr; 339 p->ni_fport = inp->inp_fport; 340 p->ni_proto = proto; 341 p->ni_flags = NIF_LACHG|NIF_FACHG; 342 p->ni_family = AF_INET; 343 } 344 p->ni_rcvcc = so->so_rcv.sb_cc; 345 p->ni_sndcc = so->so_snd.sb_cc; 346 p->ni_state = state; 347 p->ni_seen = 1; 348 } 349 350 #ifdef INET6 351 static void 352 enter6(struct in6pcb *in6p, struct socket *so, int state, char *proto) 353 { 354 struct netinfo *p; 355 356 /* 357 * Only take exact matches, any sockets with 358 * previously unbound addresses will be deleted 359 * below in the display routine because they 360 * will appear as ``not seen'' in the kernel 361 * data structures. 362 */ 363 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) { 364 if (p->ni_family != AF_INET6) 365 continue; 366 if (!streq(proto, p->ni_proto)) 367 continue; 368 if (p->ni_lport != in6p->in6p_lport || 369 !IN6_ARE_ADDR_EQUAL(&p->ni_laddr6, &in6p->in6p_laddr)) 370 continue; 371 if (IN6_ARE_ADDR_EQUAL(&p->ni_faddr6, &in6p->in6p_faddr) && 372 p->ni_fport == in6p->in6p_fport) 373 break; 374 } 375 if (p == (struct netinfo *)&netcb) { 376 if ((p = malloc(sizeof(*p))) == NULL) { 377 error("Out of memory"); 378 return; 379 } 380 p->ni_prev = (struct netinfo *)&netcb; 381 p->ni_forw = netcb.ni_forw; 382 netcb.ni_forw->ni_prev = p; 383 netcb.ni_forw = p; 384 p->ni_line = -1; 385 p->ni_laddr6 = in6p->in6p_laddr; 386 p->ni_lport = in6p->in6p_lport; 387 p->ni_faddr6 = in6p->in6p_faddr; 388 p->ni_fport = in6p->in6p_fport; 389 p->ni_proto = proto; 390 p->ni_flags = NIF_LACHG|NIF_FACHG; 391 p->ni_family = AF_INET6; 392 } 393 p->ni_rcvcc = so->so_rcv.sb_cc; 394 p->ni_sndcc = so->so_snd.sb_cc; 395 p->ni_state = state; 396 p->ni_seen = 1; 397 } 398 #endif 399 400 /* column locations */ 401 #define LADDR 0 402 #define FADDR LADDR+23 403 #define PROTO FADDR+23 404 #define RCVCC PROTO+6 405 #define SNDCC RCVCC+7 406 #define STATE SNDCC+7 407 408 void 409 labelnetstat(void) 410 { 411 412 if (namelist[X_TCBTABLE].n_type == 0) 413 return; 414 wmove(wnd, 0, 0); wclrtobot(wnd); 415 mvwaddstr(wnd, 0, LADDR, "Local Address"); 416 mvwaddstr(wnd, 0, FADDR, "Foreign Address"); 417 mvwaddstr(wnd, 0, PROTO, "Proto"); 418 mvwaddstr(wnd, 0, RCVCC, "Recv-Q"); 419 mvwaddstr(wnd, 0, SNDCC, "Send-Q"); 420 mvwaddstr(wnd, 0, STATE, "(state)"); 421 } 422 423 void 424 shownetstat(void) 425 { 426 struct netinfo *p, *q; 427 428 /* 429 * First, delete any connections that have gone 430 * away and adjust the position of connections 431 * below to reflect the deleted line. 432 */ 433 p = netcb.ni_forw; 434 while (p != (struct netinfo *)&netcb) { 435 if (p->ni_line == -1 || p->ni_seen) { 436 p = p->ni_forw; 437 continue; 438 } 439 wmove(wnd, p->ni_line, 0); wdeleteln(wnd); 440 q = netcb.ni_forw; 441 for (; q != (struct netinfo *)&netcb; q = q->ni_forw) 442 if (q != p && q->ni_line > p->ni_line) { 443 q->ni_line--; 444 /* this shouldn't be necessary */ 445 q->ni_flags |= NIF_LACHG|NIF_FACHG; 446 } 447 lastrow--; 448 q = p->ni_forw; 449 p->ni_prev->ni_forw = p->ni_forw; 450 p->ni_forw->ni_prev = p->ni_prev; 451 free(p); 452 p = q; 453 } 454 /* 455 * Update existing connections and add new ones. 456 */ 457 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) { 458 if (p->ni_line == -1) { 459 /* 460 * Add a new entry if possible. 461 */ 462 if (lastrow > getmaxy(wnd)) 463 continue; 464 p->ni_line = lastrow++; 465 p->ni_flags |= NIF_LACHG|NIF_FACHG; 466 } 467 if (p->ni_flags & NIF_LACHG) { 468 wmove(wnd, p->ni_line, LADDR); 469 switch (p->ni_family) { 470 case AF_INET: 471 inetprint(&p->ni_laddr, p->ni_lport, 472 p->ni_proto); 473 break; 474 #ifdef INET6 475 case AF_INET6: 476 inet6print(&p->ni_laddr6, p->ni_lport, 477 p->ni_proto); 478 break; 479 #endif 480 } 481 p->ni_flags &= ~NIF_LACHG; 482 } 483 if (p->ni_flags & NIF_FACHG) { 484 wmove(wnd, p->ni_line, FADDR); 485 switch (p->ni_family) { 486 case AF_INET: 487 inetprint(&p->ni_faddr, p->ni_fport, 488 p->ni_proto); 489 break; 490 #ifdef INET6 491 case AF_INET6: 492 inet6print(&p->ni_faddr6, p->ni_fport, 493 p->ni_proto); 494 break; 495 #endif 496 } 497 p->ni_flags &= ~NIF_FACHG; 498 } 499 mvwaddstr(wnd, p->ni_line, PROTO, p->ni_proto); 500 #ifdef INET6 501 if (p->ni_family == AF_INET6) 502 waddstr(wnd, "6"); 503 #endif 504 mvwprintw(wnd, p->ni_line, RCVCC, "%6ld", p->ni_rcvcc); 505 mvwprintw(wnd, p->ni_line, SNDCC, "%6ld", p->ni_sndcc); 506 if (streq(p->ni_proto, "tcp")) { 507 if (p->ni_state < 0 || p->ni_state >= TCP_NSTATES) 508 mvwprintw(wnd, p->ni_line, STATE, "%d", 509 p->ni_state); 510 else 511 mvwaddstr(wnd, p->ni_line, STATE, 512 tcpstates[p->ni_state]); 513 } 514 wclrtoeol(wnd); 515 } 516 if (lastrow < getmaxy(wnd)) { 517 wmove(wnd, lastrow, 0); wclrtobot(wnd); 518 wmove(wnd, getmaxy(wnd), 0); wdeleteln(wnd); /* XXX */ 519 } 520 } 521 522 /* 523 * Pretty print an Internet address (net address + port). 524 * If the nflag was specified, use numbers instead of names. 525 */ 526 static void 527 inetprint(struct in_addr *in, int port, char *proto) 528 { 529 struct servent *sp = 0; 530 char line[80], *cp; 531 532 (void)snprintf(line, sizeof line, "%.*s.", 16, inetname(*in)); 533 cp = strchr(line, '\0'); 534 if (!nflag && port) 535 sp = getservbyport(port, proto); 536 if (sp || port == 0) 537 (void)snprintf(cp, line + sizeof line - cp, "%.8s", 538 sp ? sp->s_name : "*"); 539 else 540 (void)snprintf(cp, line + sizeof line - cp, "%d", 541 ntohs((u_short)port)); 542 /* pad to full column to clear any garbage */ 543 cp = strchr(line, '\0'); 544 while (cp - line < 22) 545 *cp++ = ' '; 546 *cp = '\0'; 547 waddstr(wnd, line); 548 } 549 550 #ifdef INET6 551 static void 552 inet6print(struct in6_addr *in6, int port, char *proto) 553 { 554 struct servent *sp = 0; 555 char line[80], *cp; 556 557 (void)snprintf(line, sizeof line, "%.*s.", 16, inet6name(in6)); 558 cp = strchr(line, '\0'); 559 if (!nflag && port) 560 sp = getservbyport(port, proto); 561 if (sp || port == 0) 562 (void)snprintf(cp, line + sizeof line - cp, "%.8s", 563 sp ? sp->s_name : "*"); 564 else 565 (void)snprintf(cp, line + sizeof line - cp, "%d", 566 ntohs((u_short)port)); 567 /* pad to full column to clear any garbage */ 568 cp = strchr(line, '\0'); 569 while (cp - line < 22) 570 *cp++ = ' '; 571 *cp = '\0'; 572 waddstr(wnd, line); 573 } 574 #endif 575 576 /* 577 * Construct an Internet address representation. 578 * If the nflag has been supplied, give 579 * numeric value, otherwise try for symbolic name. 580 */ 581 static const char * 582 inetname(struct in_addr in) 583 { 584 char *cp = 0; 585 static char line[50]; 586 struct hostent *hp; 587 struct netent *np; 588 589 if (!nflag && in.s_addr != INADDR_ANY) { 590 int net = inet_netof(in); 591 int lna = inet_lnaof(in); 592 593 if (lna == INADDR_ANY) { 594 np = getnetbyaddr(net, AF_INET); 595 if (np) 596 cp = np->n_name; 597 } 598 if (cp == 0) { 599 hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET); 600 if (hp) 601 cp = hp->h_name; 602 } 603 } 604 if (in.s_addr == INADDR_ANY) 605 strlcpy(line, "*", sizeof(line)); 606 else if (cp) 607 strlcpy(line, cp, sizeof(line)); 608 else { 609 in.s_addr = ntohl(in.s_addr); 610 #define C(x) ((x) & 0xff) 611 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 612 C(in.s_addr >> 24), C(in.s_addr >> 16), 613 C(in.s_addr >> 8), C(in.s_addr)); 614 #undef C 615 } 616 return (line); 617 } 618 619 #ifdef INET6 620 static const char * 621 inet6name(struct in6_addr *in6) 622 { 623 static char line[NI_MAXHOST]; 624 struct sockaddr_in6 sin6; 625 int flags; 626 627 if (nflag) 628 flags = NI_NUMERICHOST; 629 else 630 flags = 0; 631 if (IN6_IS_ADDR_UNSPECIFIED(in6)) 632 return "*"; 633 memset(&sin6, 0, sizeof(sin6)); 634 sin6.sin6_family = AF_INET6; 635 sin6.sin6_len = sizeof(struct sockaddr_in6); 636 sin6.sin6_addr = *in6; 637 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 638 line, sizeof(line), NULL, 0, flags) == 0) 639 return line; 640 return "?"; 641 } 642 #endif 643 644 /* please note: there are also some netstat commands in netcmds.c */ 645 646 void 647 netstat_all(char *args) 648 { 649 aflag = !aflag; 650 fetchnetstat(); 651 shownetstat(); 652 refresh(); 653 } 654 655 void 656 netstat_names(char *args) 657 { 658 struct netinfo *p; 659 660 if (nflag == 0) 661 return; 662 663 p = netcb.ni_forw; 664 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) { 665 if (p->ni_line == -1) 666 continue; 667 p->ni_flags |= NIF_LACHG|NIF_FACHG; 668 } 669 nflag = 0; 670 wclear(wnd); 671 labelnetstat(); 672 shownetstat(); 673 refresh(); 674 } 675 676 void 677 netstat_numbers(char *args) 678 { 679 struct netinfo *p; 680 681 if (nflag != 0) 682 return; 683 684 p = netcb.ni_forw; 685 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) { 686 if (p->ni_line == -1) 687 continue; 688 p->ni_flags |= NIF_LACHG|NIF_FACHG; 689 } 690 nflag = 1; 691 wclear(wnd); 692 labelnetstat(); 693 shownetstat(); 694 refresh(); 695 } 696
Indexes created Mon Sep 22 13:09:51 GMT 2025