1/* 2 * Copyright (c) 2008-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Copyright (c) 1983, 1988, 1993 30 * The Regents of the University of California. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by the University of 43 * California, Berkeley and its contributors. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 */ 60 61#include <stdint.h> 62#include <sys/param.h> 63#include <sys/socket.h> 64#include <sys/time.h> 65 66#include <net/if.h> 67#include <net/if_var.h> 68#include <net/if_dl.h> 69#include <net/if_types.h> 70#include <net/route.h> 71#include <net/radix.h> 72 73#include <netinet/in.h> 74 75#include <sys/sysctl.h> 76 77#include <arpa/inet.h> 78#include <netdb.h> 79#include <stdio.h> 80#include <stdlib.h> 81#include <string.h> 82#include <unistd.h> 83#include <err.h> 84#include <time.h> 85#include "netstat.h" 86 87/* alignment constraint for routing socket */ 88#define ROUNDUP(a) \ 89 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(uint32_t) - 1))) : sizeof(uint32_t)) 90#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 91 92/* 93 * Definitions for showing gateway flags. 94 */ 95struct bits { 96 uint32_t b_mask; 97 char b_val; 98} bits[] = { 99 { RTF_UP, 'U' }, 100 { RTF_GATEWAY, 'G' }, 101 { RTF_HOST, 'H' }, 102 { RTF_REJECT, 'R' }, 103 { RTF_DYNAMIC, 'D' }, 104 { RTF_MODIFIED, 'M' }, 105 { RTF_MULTICAST,'m' }, 106 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 107 { RTF_CLONING, 'C' }, 108 { RTF_XRESOLVE, 'X' }, 109 { RTF_LLINFO, 'L' }, 110 { RTF_STATIC, 'S' }, 111 { RTF_PROTO1, '1' }, 112 { RTF_PROTO2, '2' }, 113 { RTF_WASCLONED,'W' }, 114 { RTF_PRCLONING,'c' }, 115 { RTF_PROTO3, '3' }, 116 { RTF_BLACKHOLE,'B' }, 117 { RTF_BROADCAST,'b' }, 118 { RTF_IFSCOPE, 'I' }, 119 { RTF_IFREF, 'i' }, 120 { RTF_PROXY, 'Y' }, 121 { RTF_ROUTER, 'r' }, 122 { 0 } 123}; 124 125typedef union { 126 uint32_t dummy; /* Helps align structure. */ 127 struct sockaddr u_sa; 128 u_short u_data[128]; 129} sa_u; 130 131static void np_rtentry __P((struct rt_msghdr2 *)); 132static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int)); 133static void p_flags __P((int, char *)); 134static uint32_t forgemask __P((uint32_t)); 135static void domask __P((char *, uint32_t, uint32_t)); 136 137/* 138 * Print address family header before a section of the routing table. 139 */ 140void 141pr_family(int af) 142{ 143 char *afname; 144 145 switch (af) { 146 case AF_INET: 147 afname = "Internet"; 148 break; 149#ifdef INET6 150 case AF_INET6: 151 afname = "Internet6"; 152 break; 153#endif /*INET6*/ 154 case AF_IPX: 155 afname = "IPX"; 156 break; 157 default: 158 afname = NULL; 159 break; 160 } 161 if (afname) 162 printf("\n%s:\n", afname); 163 else 164 printf("\nProtocol Family %d:\n", af); 165} 166 167/* column widths; each followed by one space */ 168#ifndef INET6 169#define WID_DST(af) 18 /* width of destination column */ 170#define WID_GW(af) 18 /* width of gateway column */ 171#define WID_IF(af) 7 /* width of netif column */ 172#else 173#define WID_DST(af) \ 174 ((af) == AF_INET6 ? (lflag ? 39 : (nflag ? 39: 18)) : 18) 175#define WID_GW(af) \ 176 ((af) == AF_INET6 ? (lflag ? 31 : (nflag ? 31 : 18)) : 18) 177#define WID_IF(af) ((af) == AF_INET6 ? 8 : 7) 178#endif /*INET6*/ 179 180/* 181 * Print header for routing table columns. 182 */ 183void 184pr_rthdr(int af) 185{ 186 187 if (Aflag) 188 printf("%-8.8s ","Address"); 189 if (af == AF_INET || lflag) 190 if (lflag) 191 printf("%-*.*s %-*.*s %-10.10s %6.6s %8.8s %6.6s %*.*s %6s\n", 192 WID_DST(af), WID_DST(af), "Destination", 193 WID_GW(af), WID_GW(af), "Gateway", 194 "Flags", "Refs", "Use", "Mtu", 195 WID_IF(af), WID_IF(af), "Netif", "Expire"); 196 else 197 printf("%-*.*s %-*.*s %-10.10s %6.6s %8.8s %*.*s %6s\n", 198 WID_DST(af), WID_DST(af), "Destination", 199 WID_GW(af), WID_GW(af), "Gateway", 200 "Flags", "Refs", "Use", 201 WID_IF(af), WID_IF(af), "Netif", "Expire"); 202 else 203 printf("%-*.*s %-*.*s %-10.10s %8.8s %6s\n", 204 WID_DST(af), WID_DST(af), "Destination", 205 WID_GW(af), WID_GW(af), "Gateway", 206 "Flags", "Netif", "Expire"); 207} 208 209/* 210 * Print routing tables. 211 */ 212void 213routepr(void) 214{ 215 size_t needed; 216 int mib[6]; 217 char *buf, *next, *lim; 218 struct rt_msghdr2 *rtm; 219 220 printf("Routing tables\n"); 221 222 mib[0] = CTL_NET; 223 mib[1] = PF_ROUTE; 224 mib[2] = 0; 225 mib[3] = 0; 226 mib[4] = NET_RT_DUMP2; 227 mib[5] = 0; 228 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 229 err(1, "sysctl: net.route.0.0.dump estimate"); 230 } 231 232 if ((buf = malloc(needed)) == 0) { 233 err(2, "malloc(%lu)", (unsigned long)needed); 234 } 235 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 236 err(1, "sysctl: net.route.0.0.dump"); 237 } 238 lim = buf + needed; 239 for (next = buf; next < lim; next += rtm->rtm_msglen) { 240 rtm = (struct rt_msghdr2 *)next; 241 np_rtentry(rtm); 242 } 243} 244 245static void 246get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info) 247{ 248 int i; 249 250 for (i = 0; i < RTAX_MAX; i++) { 251 if (addrs & (1 << i)) { 252 rti_info[i] = sa; 253 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 254 } else { 255 rti_info[i] = NULL; 256 } 257} 258} 259 260static void 261np_rtentry(struct rt_msghdr2 *rtm) 262{ 263 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 264 struct sockaddr *rti_info[RTAX_MAX]; 265 static int old_fam; 266 int fam = 0; 267 u_short lastindex = 0xffff; 268 static char ifname[IFNAMSIZ + 1]; 269 sa_u addr, mask; 270 271 /* 272 * Don't print protocol-cloned routes unless -a. 273 */ 274 if ((rtm->rtm_flags & RTF_WASCLONED) && 275 (rtm->rtm_parentflags & RTF_PRCLONING) && 276 !aflag) { 277 return; 278 } 279 280 fam = sa->sa_family; 281 if (af != AF_UNSPEC && af != fam) 282 return; 283 if (fam != old_fam) { 284 pr_family(fam); 285 pr_rthdr(fam); 286 old_fam = fam; 287 } 288 get_rtaddrs(rtm->rtm_addrs, sa, rti_info); 289 bzero(&addr, sizeof(addr)); 290 if ((rtm->rtm_addrs & RTA_DST)) 291 bcopy(rti_info[RTAX_DST], &addr, rti_info[RTAX_DST]->sa_len); 292 bzero(&mask, sizeof(mask)); 293 if ((rtm->rtm_addrs & RTA_NETMASK)) 294 bcopy(rti_info[RTAX_NETMASK], &mask, rti_info[RTAX_NETMASK]->sa_len); 295 p_sockaddr(&addr.u_sa, &mask.u_sa, rtm->rtm_flags, 296 WID_DST(addr.u_sa.sa_family)); 297 298 p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST, 299 WID_GW(addr.u_sa.sa_family)); 300 301 p_flags(rtm->rtm_flags, "%-10.10s "); 302 303 if (addr.u_sa.sa_family == AF_INET || lflag) { 304 printf("%6u %8u ", rtm->rtm_refcnt, (unsigned int)rtm->rtm_use); 305 if (lflag) { 306 if (rtm->rtm_rmx.rmx_mtu != 0) 307 printf("%6u ", rtm->rtm_rmx.rmx_mtu); 308 else 309 printf("%6s ", ""); 310 } 311 } 312 if (rtm->rtm_index != lastindex) { 313 if_indextoname(rtm->rtm_index, ifname); 314 lastindex = rtm->rtm_index; 315 } 316 printf("%*.*s", WID_IF(addr.u_sa.sa_family), 317 WID_IF(addr.u_sa.sa_family), ifname); 318 319 if (rtm->rtm_rmx.rmx_expire) { 320 time_t expire_time; 321 322 if ((expire_time = 323 rtm->rtm_rmx.rmx_expire - time((time_t *)0)) > 0) 324 printf(" %6d", (int)expire_time); 325 } 326 putchar('\n'); 327} 328 329static void 330p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width) 331{ 332 char workbuf[128], *cplim; 333 char *cp = workbuf; 334 335 switch(sa->sa_family) { 336 case AF_INET: { 337 struct sockaddr_in *sin = (struct sockaddr_in *)sa; 338 339 if ((sin->sin_addr.s_addr == INADDR_ANY) && 340 mask && 341 (ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) == 0L || mask->sa_len == 0)) 342 cp = "default" ; 343 else if (flags & RTF_HOST) 344 cp = routename(sin->sin_addr.s_addr); 345 else if (mask) 346 cp = netname(sin->sin_addr.s_addr, 347 ntohl(((struct sockaddr_in *)mask)-> 348 sin_addr.s_addr)); 349 else 350 cp = netname(sin->sin_addr.s_addr, 0L); 351 break; 352 } 353 354#ifdef INET6 355 case AF_INET6: { 356 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 357 struct in6_addr *in6 = &sa6->sin6_addr; 358 359 /* 360 * XXX: This is a special workaround for KAME kernels. 361 * sin6_scope_id field of SA should be set in the future. 362 */ 363 if (IN6_IS_ADDR_LINKLOCAL(in6) || 364 IN6_IS_ADDR_MC_NODELOCAL(in6) || 365 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 366 /* XXX: override is ok? */ 367 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 368 *(u_short *)&in6->s6_addr[2] = 0; 369 } 370 371 if (flags & RTF_HOST) 372 cp = routename6(sa6); 373 else if (mask) 374 cp = netname6(sa6, mask); 375 else 376 cp = netname6(sa6, NULL); 377 break; 378 } 379#endif /*INET6*/ 380 381 case AF_LINK: { 382 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 383 384 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 385 sdl->sdl_slen == 0) { 386 (void) snprintf(workbuf, sizeof(workbuf), "link#%d", sdl->sdl_index); 387 } else { 388 switch (sdl->sdl_type) { 389 390 case IFT_ETHER: { 391 int i; 392 u_char *lla = (u_char *)sdl->sdl_data + 393 sdl->sdl_nlen; 394 395 cplim = ""; 396 for (i = 0; i < sdl->sdl_alen; i++, lla++) { 397 cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), "%s%x", cplim, *lla); 398 cplim = ":"; 399 } 400 cp = workbuf; 401 break; 402 } 403 404 default: 405 cp = link_ntoa(sdl); 406 break; 407 } 408 } 409 break; 410 } 411 412 default: { 413 u_char *s = (u_char *)sa->sa_data, *slim; 414 415 slim = sa->sa_len + (u_char *) sa; 416 cplim = cp + sizeof(workbuf) - 6; 417 cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), "(%d)", sa->sa_family); 418 while (s < slim && cp < cplim) { 419 cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), " %02x", *s++); 420 if (s < slim) 421 cp += snprintf(cp, sizeof(workbuf) - (cp - workbuf), "%02x", *s++); 422 } 423 cp = workbuf; 424 } 425 } 426 if (width < 0 ) { 427 printf("%s ", cp); 428 } else { 429 if (nflag) 430 printf("%-*s ", width, cp); 431 else 432 printf("%-*.*s ", width, width, cp); 433 } 434} 435 436static void 437p_flags(int f, char *format) 438{ 439 char name[33], *flags; 440 struct bits *p = bits; 441 442 for (flags = name; p->b_mask; p++) 443 if (p->b_mask & f) 444 *flags++ = p->b_val; 445 *flags = '\0'; 446 printf(format, name); 447} 448 449char * 450routename(uint32_t in) 451{ 452 char *cp; 453 static char line[MAXHOSTNAMELEN]; 454 struct hostent *hp; 455 456 cp = 0; 457 if (!nflag) { 458 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 459 AF_INET); 460 if (hp) { 461 cp = hp->h_name; 462 //### trimdomain(cp, strlen(cp)); 463 } 464 } 465 if (cp) { 466 strncpy(line, cp, sizeof(line) - 1); 467 line[sizeof(line) - 1] = '\0'; 468 } else { 469#define C(x) ((x) & 0xff) 470 in = ntohl(in); 471 snprintf(line, sizeof(line), "%u.%u.%u.%u", 472 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 473 } 474 return (line); 475} 476 477static uint32_t 478forgemask(uint32_t a) 479{ 480 uint32_t m; 481 482 if (IN_CLASSA(a)) 483 m = IN_CLASSA_NET; 484 else if (IN_CLASSB(a)) 485 m = IN_CLASSB_NET; 486 else 487 m = IN_CLASSC_NET; 488 return (m); 489} 490 491static void 492domask(char *dst, uint32_t addr, uint32_t mask) 493{ 494 int b, i; 495 496 if (!mask || (forgemask(addr) == mask)) { 497 *dst = '\0'; 498 return; 499 } 500 i = 0; 501 for (b = 0; b < 32; b++) 502 if (mask & (1 << b)) { 503 int bb; 504 505 i = b; 506 for (bb = b+1; bb < 32; bb++) 507 if (!(mask & (1 << bb))) { 508 i = -1; /* noncontig */ 509 break; 510 } 511 break; 512 } 513 if (i == -1) 514 snprintf(dst, sizeof(dst), "&0x%x", mask); 515 else 516 snprintf(dst, sizeof(dst), "/%d", 32-i); 517} 518 519/* 520 * Return the name of the network whose address is given. 521 * The address is assumed to be that of a net or subnet, not a host. 522 */ 523char * 524netname(uint32_t in, uint32_t mask) 525{ 526 char *cp = 0; 527 static char line[MAXHOSTNAMELEN]; 528 struct netent *np = 0; 529 uint32_t net, omask, dmask; 530 uint32_t i; 531 532 i = ntohl(in); 533 dmask = forgemask(i); 534 omask = mask; 535 if (!nflag && i) { 536 net = i & dmask; 537 if (!(np = getnetbyaddr(i, AF_INET)) && net != i) 538 np = getnetbyaddr(net, AF_INET); 539 if (np) { 540 cp = np->n_name; 541 //### trimdomain(cp, strlen(cp)); 542 } 543 } 544 if (cp) 545 strncpy(line, cp, sizeof(line) - 1); 546 else { 547 switch (dmask) { 548 case IN_CLASSA_NET: 549 if ((i & IN_CLASSA_HOST) == 0) { 550 snprintf(line, sizeof(line), "%u", C(i >> 24)); 551 break; 552 } 553 /* FALLTHROUGH */ 554 case IN_CLASSB_NET: 555 if ((i & IN_CLASSB_HOST) == 0) { 556 snprintf(line, sizeof(line), "%u.%u", 557 C(i >> 24), C(i >> 16)); 558 break; 559 } 560 /* FALLTHROUGH */ 561 case IN_CLASSC_NET: 562 if ((i & IN_CLASSC_HOST) == 0) { 563 snprintf(line, sizeof(line), "%u.%u.%u", 564 C(i >> 24), C(i >> 16), C(i >> 8)); 565 break; 566 } 567 /* FALLTHROUGH */ 568 default: 569 snprintf(line, sizeof(line), "%u.%u.%u.%u", 570 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 571 break; 572 } 573 } 574 domask(line+strlen(line), i, omask); 575 return (line); 576} 577 578#ifdef INET6 579char * 580netname6(struct sockaddr_in6 *sa6, struct sockaddr *sam) 581{ 582 static char line[MAXHOSTNAMELEN]; 583 u_char *lim; 584 int masklen, illegal = 0, flag = NI_WITHSCOPEID; 585 struct in6_addr *mask = sam ? &((struct sockaddr_in6 *)sam)->sin6_addr : 0; 586 587 if (sam && sam->sa_len == 0) { 588 masklen = 0; 589 } else if (mask) { 590 u_char *p = (u_char *)mask; 591 for (masklen = 0, lim = p + 16; p < lim; p++) { 592 switch (*p) { 593 case 0xff: 594 masklen += 8; 595 break; 596 case 0xfe: 597 masklen += 7; 598 break; 599 case 0xfc: 600 masklen += 6; 601 break; 602 case 0xf8: 603 masklen += 5; 604 break; 605 case 0xf0: 606 masklen += 4; 607 break; 608 case 0xe0: 609 masklen += 3; 610 break; 611 case 0xc0: 612 masklen += 2; 613 break; 614 case 0x80: 615 masklen += 1; 616 break; 617 case 0x00: 618 break; 619 default: 620 illegal ++; 621 break; 622 } 623 } 624 if (illegal) 625 fprintf(stderr, "illegal prefixlen\n"); 626 } else { 627 masklen = 128; 628 } 629 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 630 return("default"); 631 632 if (nflag) 633 flag |= NI_NUMERICHOST; 634 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 635 NULL, 0, flag); 636 637 if (nflag) 638 snprintf(&line[strlen(line)], sizeof(line) - strlen(line), "/%d", masklen); 639 640 return line; 641} 642 643char * 644routename6(struct sockaddr_in6 *sa6) 645{ 646 static char line[MAXHOSTNAMELEN]; 647 int flag = NI_WITHSCOPEID; 648 /* use local variable for safety */ 649 struct sockaddr_in6 sa6_local = {sizeof(sa6_local), AF_INET6, }; 650 651 sa6_local.sin6_addr = sa6->sin6_addr; 652 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 653 654 if (nflag) 655 flag |= NI_NUMERICHOST; 656 657 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 658 line, sizeof(line), NULL, 0, flag); 659 660 return line; 661} 662#endif /*INET6*/ 663 664/* 665 * Print routing statistics 666 */ 667void 668rt_stats(void) 669{ 670 struct rtstat rtstat; 671 int rttrash; 672 int mib[6]; 673 size_t len; 674 675 mib[0] = CTL_NET; 676 mib[1] = AF_ROUTE; 677 mib[2] = 0; 678 mib[3] = 0; 679 mib[4] = NET_RT_STAT; 680 mib[5] = 0; 681 len = sizeof(struct rtstat); 682 if (sysctl(mib, 6, &rtstat, &len, 0, 0) == -1) 683 return; 684 685 mib[0] = CTL_NET; 686 mib[1] = AF_ROUTE; 687 mib[2] = 0; 688 mib[3] = 0; 689 mib[4] = NET_RT_TRASH; 690 mib[5] = 0; 691 len = sizeof(rttrash); 692 if (sysctl(mib, 6, &rttrash, &len, 0, 0) == -1) 693 return; 694 695 printf("routing:\n"); 696 697#define p(f, m) if (rtstat.f || sflag <= 1) \ 698 printf(m, rtstat.f, plural(rtstat.f)) 699 700 p(rts_badredirect, "\t%u bad routing redirect%s\n"); 701 p(rts_dynamic, "\t%u dynamically created route%s\n"); 702 p(rts_newgateway, "\t%u new gateway%s due to redirects\n"); 703 p(rts_unreach, "\t%u destination%s found unreachable\n"); 704 p(rts_wildcard, "\t%u use%s of a wildcard route\n"); 705#undef p 706 707 if (rttrash || sflag <= 1) 708 printf("\t%u route%s not in table but not freed\n", 709 rttrash, plural(rttrash)); 710} 711 712void 713upHex(char *p0) 714{ 715 char *p = p0; 716 717 for (; *p; p++) 718 switch (*p) { 719 720 case 'a': 721 case 'b': 722 case 'c': 723 case 'd': 724 case 'e': 725 case 'f': 726 *p += ('A' - 'a'); 727 break; 728 } 729} 730