netstat.c revision 1.19
1 /* $NetBSD: netstat.c,v 1.19 2000/07/05 11:03:22 ad 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 1.19 2000/07/05 11:03:22 ad Exp $"); 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 55 #include <arpa/inet.h> 56 #include <net/route.h> 57 58 #include <netinet/in_systm.h> 59 #include <netinet/ip.h> 60 #include <netinet/in_pcb.h> 61 #include <netinet/ip_icmp.h> 62 #include <netinet/icmp_var.h> 63 #include <netinet/ip_var.h> 64 #ifdef INET6 65 #include <netinet/ip6.h> 66 #include <netinet6/in6_pcb.h> 67 #endif 68 #include <netinet/tcp.h> 69 #include <netinet/tcpip.h> 70 #include <netinet/tcp_seq.h> 71 #define TCPSTATES 72 #include <netinet/tcp_fsm.h> 73 #include <netinet/tcp_timer.h> 74 #include <netinet/tcp_var.h> 75 #include <netinet/tcp_debug.h> 76 #include <netinet/udp.h> 77 #include <netinet/udp_var.h> 78 79 #include <netdb.h> 80 #include <stdlib.h> 81 #include <string.h> 82 #include <nlist.h> 83 #include <paths.h> 84 #include "systat.h" 85 #include "extern.h" 86 87 static void fetchnetstat4(void *, int); 88 static void enter(struct inpcb *, struct socket *, int, char *); 89 static const char *inetname(struct in_addr); 90 static void inetprint(struct in_addr *, int, char *); 91 #ifdef INET6 92 static void fetchnetstat6(void *, int); 93 static void enter6(struct in6pcb *, struct socket *, int, char *); 94 static const char *inet6name(struct in6_addr *); 95 static void inet6print(struct in6_addr *, int, char *); 96 #endif 97 98 #define streq(a,b) (strcmp(a,b)==0) 99 100 struct netinfo { 101 struct netinfo *ni_forw, *ni_prev; 102 int ni_family; 103 short ni_line; /* line on screen */ 104 short ni_seen; /* 0 when not present in list */ 105 short ni_flags; 106 #define NIF_LACHG 0x1 /* local address changed */ 107 #define NIF_FACHG 0x2 /* foreign address changed */ 108 short ni_state; /* tcp state */ 109 char *ni_proto; /* protocol */ 110 struct in_addr ni_laddr; /* local address */ 111 #ifdef INET6 112 struct in6_addr ni_laddr6; /* local address */ 113 #endif 114 long ni_lport; /* local port */ 115 struct in_addr ni_faddr; /* foreign address */ 116 #ifdef INET6 117 struct in6_addr ni_faddr6; /* foreign address */ 118 #endif 119 long ni_fport; /* foreign port */ 120 long ni_rcvcc; /* rcv buffer character count */ 121 long ni_sndcc; /* snd buffer character count */ 122 }; 123 124 static struct { 125 struct netinfo *ni_forw, *ni_prev; 126 } netcb; 127 128 static int aflag = 0; 129 int nflag = 0; 130 static int lastrow = 1; 131 132 WINDOW * 133 opennetstat(void) 134 { 135 136 sethostent(1); 137 setnetent(1); 138 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 139 } 140 141 void 142 closenetstat(WINDOW *w) 143 { 144 struct netinfo *p; 145 146 endhostent(); 147 endnetent(); 148 p = (struct netinfo *)netcb.ni_forw; 149 while (p != (struct netinfo *)&netcb) { 150 if (p->ni_line != -1) 151 lastrow--; 152 p->ni_line = -1; 153 p = p->ni_forw; 154 } 155 if (w != NULL) { 156 wclear(w); 157 wrefresh(w); 158 delwin(w); 159 } 160 } 161 162 static struct nlist namelist[] = { 163 #define X_TCBTABLE 0 164 { "_tcbtable" }, 165 #define X_UDBTABLE 1 166 { "_udbtable" }, 167 #ifdef INET6 168 #define X_TCB6 2 169 { "_tcb6" }, 170 #define X_UDB6 3 171 { "_udb6" }, 172 #endif 173 { "" }, 174 }; 175 176 int 177 initnetstat(void) 178 { 179 int n; 180 181 n = kvm_nlist(kd, namelist); 182 if (n < 0) { 183 nlisterr(namelist); 184 return(0); 185 } else if (n == sizeof(namelist) / sizeof(namelist[0]) - 1) { 186 error("No symbols in namelist"); 187 return(0); 188 } 189 190 netcb.ni_forw = netcb.ni_prev = (struct netinfo *)&netcb; 191 protos = TCP|UDP; 192 return(1); 193 } 194 195 void 196 fetchnetstat(void) 197 { 198 struct netinfo *p; 199 200 if (namelist[X_TCBTABLE].n_value == 0) 201 return; 202 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) 203 p->ni_seen = 0; 204 205 if ((protos & (TCP | UDP)) == 0) { 206 error("No protocols to display"); 207 return; 208 } 209 if ((protos & TCP) && namelist[X_TCBTABLE].n_type) 210 fetchnetstat4(NPTR(X_TCBTABLE), 1); 211 if ((protos & UDP) && namelist[X_UDBTABLE].n_type) 212 fetchnetstat4(NPTR(X_UDBTABLE), 0); 213 #ifdef INET6 214 if ((protos & TCP) && namelist[X_TCB6].n_type) 215 fetchnetstat6(NPTR(X_TCB6), 1); 216 if ((protos & UDP) && namelist[X_UDB6].n_type) 217 fetchnetstat6(NPTR(X_UDB6), 0); 218 #endif 219 } 220 221 static void 222 fetchnetstat4(void *off, int istcp) 223 { 224 struct inpcbtable pcbtable; 225 struct inpcb *head, *prev, *next; 226 struct netinfo *p; 227 struct inpcb inpcb; 228 struct socket sockb; 229 struct tcpcb tcpcb; 230 231 KREAD(off, &pcbtable, sizeof pcbtable); 232 prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue; 233 next = pcbtable.inpt_queue.cqh_first; 234 while (next != head) { 235 KREAD(next, &inpcb, sizeof (inpcb)); 236 if (inpcb.inp_queue.cqe_prev != prev) { 237 printf("prev = %p, head = %p, next = %p, inpcb...prev = %p\n", prev, head, next, inpcb.inp_queue.cqe_prev); 238 p = netcb.ni_forw; 239 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) 240 p->ni_seen = 1; 241 error("Kernel state in transition"); 242 return; 243 } 244 prev = next; 245 next = inpcb.inp_queue.cqe_next; 246 247 if (!aflag && inet_lnaof(inpcb.inp_laddr) == INADDR_ANY) 248 continue; 249 if (nhosts && !checkhost(&inpcb)) 250 continue; 251 if (nports && !checkport(&inpcb)) 252 continue; 253 KREAD(inpcb.inp_socket, &sockb, sizeof (sockb)); 254 if (istcp) { 255 KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb)); 256 enter(&inpcb, &sockb, tcpcb.t_state, "tcp"); 257 } else 258 enter(&inpcb, &sockb, 0, "udp"); 259 } 260 } 261 262 #ifdef INET6 263 static void 264 fetchnetstat6(void *off, int istcp) 265 { 266 struct netinfo *p; 267 struct socket sockb; 268 struct tcpcb tcpcb; 269 struct in6pcb in6pcb; 270 struct in6pcb *head6, *prev6, *next6; 271 272 KREAD(off, &in6pcb, sizeof (struct in6pcb)); 273 prev6 = head6 = (struct in6pcb *)off; 274 next6 = in6pcb.in6p_next; 275 while (next6 != head6) { 276 KREAD(next6, &in6pcb, sizeof (in6pcb)); 277 if (in6pcb.in6p_prev != prev6) { 278 printf("prev = %p, head = %p, next = %p, in6pcb...prev = %p\n", prev6, head6, next6, in6pcb.in6p_prev); 279 p = netcb.ni_forw; 280 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) 281 p->ni_seen = 1; 282 error("Kernel state in transition"); 283 return; 284 } 285 prev6 = next6; 286 next6 = in6pcb.in6p_next; 287 288 if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&in6pcb.in6p_laddr)) 289 continue; 290 if (nhosts && !checkhost6(&in6pcb)) 291 continue; 292 if (nports && !checkport6(&in6pcb)) 293 continue; 294 KREAD(in6pcb.in6p_socket, &sockb, sizeof (sockb)); 295 if (istcp) { 296 KREAD(in6pcb.in6p_ppcb, &tcpcb, sizeof (tcpcb)); 297 enter6(&in6pcb, &sockb, tcpcb.t_state, "tcp"); 298 } else 299 enter6(&in6pcb, &sockb, 0, "udp"); 300 } 301 } 302 #endif /*INET6*/ 303 304 static void 305 enter(struct inpcb *inp, struct socket *so, int state, char *proto) 306 { 307 struct netinfo *p; 308 309 /* 310 * Only take exact matches, any sockets with 311 * previously unbound addresses will be deleted 312 * below in the display routine because they 313 * will appear as ``not seen'' in the kernel 314 * data structures. 315 */ 316 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) { 317 if (p->ni_family != AF_INET) 318 continue; 319 if (!streq(proto, p->ni_proto)) 320 continue; 321 if (p->ni_lport != inp->inp_lport || 322 p->ni_laddr.s_addr != inp->inp_laddr.s_addr) 323 continue; 324 if (p->ni_faddr.s_addr == inp->inp_faddr.s_addr && 325 p->ni_fport == inp->inp_fport) 326 break; 327 } 328 if (p == (struct netinfo *)&netcb) { 329 if ((p = malloc(sizeof(*p))) == NULL) { 330 error("Out of memory"); 331 return; 332 } 333 p->ni_prev = (struct netinfo *)&netcb; 334 p->ni_forw = netcb.ni_forw; 335 netcb.ni_forw->ni_prev = p; 336 netcb.ni_forw = p; 337 p->ni_line = -1; 338 p->ni_laddr = inp->inp_laddr; 339 p->ni_lport = inp->inp_lport; 340 p->ni_faddr = inp->inp_faddr; 341 p->ni_fport = inp->inp_fport; 342 p->ni_proto = proto; 343 p->ni_flags = NIF_LACHG|NIF_FACHG; 344 p->ni_family = AF_INET; 345 } 346 p->ni_rcvcc = so->so_rcv.sb_cc; 347 p->ni_sndcc = so->so_snd.sb_cc; 348 p->ni_state = state; 349 p->ni_seen = 1; 350 } 351 352 #ifdef INET6 353 static void 354 enter6(struct in6pcb *in6p, struct socket *so, int state, char *proto) 355 { 356 struct netinfo *p; 357 358 /* 359 * Only take exact matches, any sockets with 360 * previously unbound addresses will be deleted 361 * below in the display routine because they 362 * will appear as ``not seen'' in the kernel 363 * data structures. 364 */ 365 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) { 366 if (p->ni_family != AF_INET6) 367 continue; 368 if (!streq(proto, p->ni_proto)) 369 continue; 370 if (p->ni_lport != in6p->in6p_lport || 371 !IN6_ARE_ADDR_EQUAL(&p->ni_laddr6, &in6p->in6p_laddr)) 372 continue; 373 if (IN6_ARE_ADDR_EQUAL(&p->ni_faddr6, &in6p->in6p_faddr) && 374 p->ni_fport == in6p->in6p_fport) 375 break; 376 } 377 if (p == (struct netinfo *)&netcb) { 378 if ((p = malloc(sizeof(*p))) == NULL) { 379 error("Out of memory"); 380 return; 381 } 382 p->ni_prev = (struct netinfo *)&netcb; 383 p->ni_forw = netcb.ni_forw; 384 netcb.ni_forw->ni_prev = p; 385 netcb.ni_forw = p; 386 p->ni_line = -1; 387 p->ni_laddr6 = in6p->in6p_laddr; 388 p->ni_lport = in6p->in6p_lport; 389 p->ni_faddr6 = in6p->in6p_faddr; 390 p->ni_fport = in6p->in6p_fport; 391 p->ni_proto = proto; 392 p->ni_flags = NIF_LACHG|NIF_FACHG; 393 p->ni_family = AF_INET6; 394 } 395 p->ni_rcvcc = so->so_rcv.sb_cc; 396 p->ni_sndcc = so->so_snd.sb_cc; 397 p->ni_state = state; 398 p->ni_seen = 1; 399 } 400 #endif 401 402 /* column locations */ 403 #define LADDR 0 404 #define FADDR LADDR+23 405 #define PROTO FADDR+23 406 #define RCVCC PROTO+6 407 #define SNDCC RCVCC+7 408 #define STATE SNDCC+7 409 410 void 411 labelnetstat(void) 412 { 413 414 if (namelist[X_TCBTABLE].n_type == 0) 415 return; 416 wmove(wnd, 0, 0); wclrtobot(wnd); 417 mvwaddstr(wnd, 0, LADDR, "Local Address"); 418 mvwaddstr(wnd, 0, FADDR, "Foreign Address"); 419 mvwaddstr(wnd, 0, PROTO, "Proto"); 420 mvwaddstr(wnd, 0, RCVCC, "Recv-Q"); 421 mvwaddstr(wnd, 0, SNDCC, "Send-Q"); 422 mvwaddstr(wnd, 0, STATE, "(state)"); 423 } 424 425 void 426 shownetstat(void) 427 { 428 struct netinfo *p, *q; 429 430 /* 431 * First, delete any connections that have gone 432 * away and adjust the position of connections 433 * below to reflect the deleted line. 434 */ 435 p = netcb.ni_forw; 436 while (p != (struct netinfo *)&netcb) { 437 if (p->ni_line == -1 || p->ni_seen) { 438 p = p->ni_forw; 439 continue; 440 } 441 wmove(wnd, p->ni_line, 0); wdeleteln(wnd); 442 q = netcb.ni_forw; 443 for (; q != (struct netinfo *)&netcb; q = q->ni_forw) 444 if (q != p && q->ni_line > p->ni_line) { 445 q->ni_line--; 446 /* this shouldn't be necessary */ 447 q->ni_flags |= NIF_LACHG|NIF_FACHG; 448 } 449 lastrow--; 450 q = p->ni_forw; 451 p->ni_prev->ni_forw = p->ni_forw; 452 p->ni_forw->ni_prev = p->ni_prev; 453 free(p); 454 p = q; 455 } 456 /* 457 * Update existing connections and add new ones. 458 */ 459 for (p = netcb.ni_forw; p != (struct netinfo *)&netcb; p = p->ni_forw) { 460 if (p->ni_line == -1) { 461 /* 462 * Add a new entry if possible. 463 */ 464 if (lastrow > getmaxy(wnd)) 465 continue; 466 p->ni_line = lastrow++; 467 p->ni_flags |= NIF_LACHG|NIF_FACHG; 468 } 469 if (p->ni_flags & NIF_LACHG) { 470 wmove(wnd, p->ni_line, LADDR); 471 switch (p->ni_family) { 472 case AF_INET: 473 inetprint(&p->ni_laddr, p->ni_lport, 474 p->ni_proto); 475 break; 476 #ifdef INET6 477 case AF_INET6: 478 inet6print(&p->ni_laddr6, p->ni_lport, 479 p->ni_proto); 480 break; 481 #endif 482 } 483 p->ni_flags &= ~NIF_LACHG; 484 } 485 if (p->ni_flags & NIF_FACHG) { 486 wmove(wnd, p->ni_line, FADDR); 487 switch (p->ni_family) { 488 case AF_INET: 489 inetprint(&p->ni_faddr, p->ni_fport, 490 p->ni_proto); 491 break; 492 #ifdef INET6 493 case AF_INET6: 494 inet6print(&p->ni_faddr6, p->ni_fport, 495 p->ni_proto); 496 break; 497 #endif 498 } 499 p->ni_flags &= ~NIF_FACHG; 500 } 501 mvwaddstr(wnd, p->ni_line, PROTO, p->ni_proto); 502 #ifdef INET6 503 if (p->ni_family == AF_INET6) 504 waddstr(wnd, "6"); 505 #endif 506 mvwprintw(wnd, p->ni_line, RCVCC, "%6ld", p->ni_rcvcc); 507 mvwprintw(wnd, p->ni_line, SNDCC, "%6ld", p->ni_sndcc); 508 if (streq(p->ni_proto, "tcp")) { 509 if (p->ni_state < 0 || p->ni_state >= TCP_NSTATES) 510 mvwprintw(wnd, p->ni_line, STATE, "%d", 511 p->ni_state); 512 else 513 mvwaddstr(wnd, p->ni_line, STATE, 514 tcpstates[p->ni_state]); 515 } 516 wclrtoeol(wnd); 517 } 518 if (lastrow < getmaxy(wnd)) { 519 wmove(wnd, lastrow, 0); wclrtobot(wnd); 520 wmove(wnd, getmaxy(wnd), 0); wdeleteln(wnd); /* XXX */ 521 } 522 } 523 524 /* 525 * Pretty print an Internet address (net address + port). 526 * If the nflag was specified, use numbers instead of names. 527 */ 528 static void 529 inetprint(struct in_addr *in, int port, char *proto) 530 { 531 struct servent *sp = 0; 532 char line[80], *cp; 533 534 (void)snprintf(line, sizeof line, "%.*s.", 16, inetname(*in)); 535 cp = strchr(line, '\0'); 536 if (!nflag && port) 537 sp = getservbyport(port, proto); 538 if (sp || port == 0) 539 (void)snprintf(cp, line + sizeof line - cp, "%.8s", 540 sp ? sp->s_name : "*"); 541 else 542 (void)snprintf(cp, line + sizeof line - cp, "%d", 543 ntohs((u_short)port)); 544 /* pad to full column to clear any garbage */ 545 cp = strchr(line, '\0'); 546 while (cp - line < 22) 547 *cp++ = ' '; 548 *cp = '\0'; 549 waddstr(wnd, line); 550 } 551 552 #ifdef INET6 553 static void 554 inet6print(struct in6_addr *in6, int port, char *proto) 555 { 556 struct servent *sp = 0; 557 char line[80], *cp; 558 559 (void)snprintf(line, sizeof line, "%.*s.", 16, inet6name(in6)); 560 cp = strchr(line, '\0'); 561 if (!nflag && port) 562 sp = getservbyport(port, proto); 563 if (sp || port == 0) 564 (void)snprintf(cp, line + sizeof line - cp, "%.8s", 565 sp ? sp->s_name : "*"); 566 else 567 (void)snprintf(cp, line + sizeof line - cp, "%d", 568 ntohs((u_short)port)); 569 /* pad to full column to clear any garbage */ 570 cp = strchr(line, '\0'); 571 while (cp - line < 22) 572 *cp++ = ' '; 573 *cp = '\0'; 574 waddstr(wnd, line); 575 } 576 #endif 577 578 /* 579 * Construct an Internet address representation. 580 * If the nflag has been supplied, give 581 * numeric value, otherwise try for symbolic name. 582 */ 583 static const char * 584 inetname(struct in_addr in) 585 { 586 char *cp = 0; 587 static char line[50]; 588 struct hostent *hp; 589 struct netent *np; 590 591 if (!nflag && in.s_addr != INADDR_ANY) { 592 int net = inet_netof(in); 593 int lna = inet_lnaof(in); 594 595 if (lna == INADDR_ANY) { 596 np = getnetbyaddr(net, AF_INET); 597 if (np) 598 cp = np->n_name; 599 } 600 if (cp == 0) { 601 hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET); 602 if (hp) 603 cp = hp->h_name; 604 } 605 } 606 if (in.s_addr == INADDR_ANY) 607 strncpy(line, "*", sizeof(line) - 1); 608 else if (cp) 609 strncpy(line, cp, sizeof(line) - 1); 610 else { 611 in.s_addr = ntohl(in.s_addr); 612 #define C(x) ((x) & 0xff) 613 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 614 C(in.s_addr >> 24), C(in.s_addr >> 16), 615 C(in.s_addr >> 8), C(in.s_addr)); 616 #undef C 617 } 618 line[sizeof(line) - 1] = '\0'; 619 return (line); 620 } 621 622 #ifdef INET6 623 static const char * 624 inet6name(struct in6_addr *in6) 625 { 626 static char line[NI_MAXHOST]; 627 struct sockaddr_in6 sin6; 628 int flags; 629 630 if (nflag) 631 flags = NI_NUMERICHOST; 632 else 633 flags = 0; 634 if (IN6_IS_ADDR_UNSPECIFIED(in6)) 635 return "*"; 636 memset(&sin6, 0, sizeof(sin6)); 637 sin6.sin6_family = AF_INET6; 638 sin6.sin6_len = sizeof(struct sockaddr_in6); 639 sin6.sin6_addr = *in6; 640 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 641 line, sizeof(line), NULL, 0, flags) == 0) 642 return line; 643 return "?"; 644 } 645 #endif 646 647 /* please note: there are also some netstat commands in netcmds.c */ 648 649 void 650 netstat_all(char *args) 651 { 652 aflag = !aflag; 653 fetchnetstat(); 654 shownetstat(); 655 refresh(); 656 } 657 658 void 659 netstat_names(char *args) 660 { 661 struct netinfo *p; 662 663 if (nflag == 0) 664 return; 665 666 p = netcb.ni_forw; 667 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) { 668 if (p->ni_line == -1) 669 continue; 670 p->ni_flags |= NIF_LACHG|NIF_FACHG; 671 } 672 nflag = 0; 673 wclear(wnd); 674 labelnetstat(); 675 shownetstat(); 676 refresh(); 677 } 678 679 void 680 netstat_numbers(char *args) 681 { 682 struct netinfo *p; 683 684 if (nflag != 0) 685 return; 686 687 p = netcb.ni_forw; 688 for (; p != (struct netinfo *)&netcb; p = p->ni_forw) { 689 if (p->ni_line == -1) 690 continue; 691 p->ni_flags |= NIF_LACHG|NIF_FACHG; 692 } 693 nflag = 1; 694 wclear(wnd); 695 labelnetstat(); 696 shownetstat(); 697 refresh(); 698 } 699
Indexes created Mon Sep 22 21:09:42 GMT 2025