| File: | src/usr.sbin/tcpdump/print-atalk.c |
| Warning: | line 332, column 5 Value stored to 'c' is never read |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* $OpenBSD: print-atalk.c,v 1.35 2021/12/01 18:28:45 deraadt Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 |
| 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: (1) source code distributions |
| 9 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 10 | * distributions including binary code include the above copyright notice and |
| 11 | * this paragraph in its entirety in the documentation or other materials |
| 12 | * provided with the distribution, and (3) all advertising materials mentioning |
| 13 | * features or use of this software display the following acknowledgement: |
| 14 | * ``This product includes software developed by the University of California, |
| 15 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 16 | * the University nor the names of its contributors may be used to endorse |
| 17 | * or promote products derived from this software without specific prior |
| 18 | * written permission. |
| 19 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 20 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 21 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 22 | * |
| 23 | * Format and print AppleTalk packets. |
| 24 | */ |
| 25 | |
| 26 | #include <sys/time.h> |
| 27 | #include <sys/socket.h> |
| 28 | |
| 29 | #include <net/if.h> |
| 30 | |
| 31 | #include <netinet/in.h> |
| 32 | #include <netinet/ip.h> |
| 33 | #include <netinet/ip_var.h> |
| 34 | #include <netinet/if_ether.h> |
| 35 | #include <netinet/udp.h> |
| 36 | #include <netinet/udp_var.h> |
| 37 | #include <netinet/tcp.h> |
| 38 | |
| 39 | #include <inttypes.h> |
| 40 | #include <stdio.h> |
| 41 | #include <stdlib.h> |
| 42 | #include <string.h> |
| 43 | #include <limits.h> |
| 44 | |
| 45 | #include "interface.h" |
| 46 | #include "addrtoname.h" |
| 47 | #include "ethertype.h" |
| 48 | #include "extract.h" /* must come after interface.h */ |
| 49 | #include "appletalk.h" |
| 50 | #include "savestr.h" |
| 51 | #include "privsep.h" |
| 52 | |
| 53 | static struct tok type2str[] = { |
| 54 | { ddpRTMP1, "rtmp" }, |
| 55 | { ddpRTMPrequest5, "rtmpReq" }, |
| 56 | { ddpECHO4, "echo" }, |
| 57 | { ddpIP22, "IP" }, |
| 58 | { ddpARP23, "ARP" }, |
| 59 | { ddpKLAP0x4b, "KLAP" }, |
| 60 | { 0, NULL((void *)0) } |
| 61 | }; |
| 62 | |
| 63 | struct aarp { |
| 64 | u_int16_t htype, ptype; |
| 65 | u_int8_t halen, palen; |
| 66 | u_int16_t op; |
| 67 | u_int8_t hsaddr[6]; |
| 68 | u_int8_t psaddr[4]; |
| 69 | u_int8_t hdaddr[6]; |
| 70 | u_int8_t pdaddr[4]; |
| 71 | }; |
| 72 | |
| 73 | static char tstr[] = "[|atalk]"; |
| 74 | |
| 75 | static void atp_print(const struct atATP *, u_int); |
| 76 | static void atp_bitmap_print(u_char); |
| 77 | static void nbp_print(const struct atNBP *, u_int, u_short, u_char, u_char); |
| 78 | static const char *print_cstring(const char *, const u_char *); |
| 79 | static const struct atNBPtuple *nbp_tuple_print(const struct atNBPtuple *, |
| 80 | const u_char *, |
| 81 | u_short, u_char, u_char); |
| 82 | static const struct atNBPtuple *nbp_name_print(const struct atNBPtuple *, |
| 83 | const u_char *); |
| 84 | static const char *ataddr_string(u_short, u_char); |
| 85 | static void ddp_print(const u_char *, u_int, int, u_short, u_char, u_char); |
| 86 | static const char *ddpskt_string(int); |
| 87 | |
| 88 | /* |
| 89 | * Print AppleTalk Datagram Delivery Protocol packets |
| 90 | * without the LLAP encapsulating header (i.e. |
| 91 | * from Ethertalk) |
| 92 | */ |
| 93 | void |
| 94 | atalk_print(const u_char *bp, u_int length) |
| 95 | { |
| 96 | const struct atDDP *dp; |
| 97 | u_short snet; |
| 98 | |
| 99 | if (length < ddpSize13) { |
| 100 | printf(" [|ddp %d]", length); |
| 101 | return; |
| 102 | } |
| 103 | dp = (const struct atDDP *)bp; |
| 104 | snet = EXTRACT_16BITS(&dp->srcNet)((u_int16_t)*((const u_int8_t *)(&dp->srcNet) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&dp->srcNet) + 1) ); |
| 105 | printf("%s.%s", ataddr_string(snet, dp->srcNode), |
| 106 | ddpskt_string(dp->srcSkt)); |
| 107 | printf(" > %s.%s:", |
| 108 | ataddr_string(EXTRACT_16BITS(&dp->dstNet)((u_int16_t)*((const u_int8_t *)(&dp->dstNet) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&dp->dstNet) + 1) ), dp->dstNode), |
| 109 | ddpskt_string(dp->dstSkt)); |
| 110 | bp += ddpSize13; |
| 111 | length -= ddpSize13; |
| 112 | ddp_print(bp, length, dp->type, snet, dp->srcNode, dp->srcSkt); |
| 113 | } |
| 114 | |
| 115 | /* |
| 116 | * Print AppleTalk Datagram Delivery Protocol packets |
| 117 | * from localtalk (i.e. the 230 Kbps net built into |
| 118 | * every Macintosh). We can get these from a localtalk |
| 119 | * interface if we have one, or from UDP encapsulated tunnels. |
| 120 | */ |
| 121 | void |
| 122 | atalk_print_llap(const u_char *bp, u_int length) |
| 123 | { |
| 124 | const struct LAP *lp; |
| 125 | const struct atDDP *dp; |
| 126 | const struct atShortDDP *sdp; |
| 127 | u_short snet; |
| 128 | |
| 129 | if (length < sizeof(*lp)) { |
| 130 | printf(" [|llap %d]", length); |
| 131 | return; |
| 132 | } |
| 133 | |
| 134 | lp = (struct LAP *)bp; |
| 135 | bp += sizeof(*lp); |
| 136 | length -= sizeof(*lp); |
| 137 | switch (lp->type) { |
| 138 | |
| 139 | case lapShortDDP1: |
| 140 | if (length < ddpSSize5) { |
| 141 | printf(" [|sddp %d]", length); |
| 142 | return; |
| 143 | } |
| 144 | sdp = (const struct atShortDDP *)bp; |
| 145 | printf("%s.%s", |
| 146 | ataddr_string(0, lp->src), ddpskt_string(sdp->srcSkt)); |
| 147 | printf(" > %s.%s:", |
| 148 | ataddr_string(0, lp->dst), ddpskt_string(sdp->dstSkt)); |
| 149 | bp += ddpSSize5; |
| 150 | length -= ddpSSize5; |
| 151 | ddp_print(bp, length, sdp->type, 0, lp->src, sdp->srcSkt); |
| 152 | break; |
| 153 | |
| 154 | case lapDDP2: |
| 155 | if (length < ddpSize13) { |
| 156 | printf(" [|ddp %d]", length); |
| 157 | return; |
| 158 | } |
| 159 | dp = (const struct atDDP *)bp; |
| 160 | snet = EXTRACT_16BITS(&dp->srcNet)((u_int16_t)*((const u_int8_t *)(&dp->srcNet) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&dp->srcNet) + 1) ); |
| 161 | printf("%s.%s", ataddr_string(snet, dp->srcNode), |
| 162 | ddpskt_string(dp->srcSkt)); |
| 163 | printf(" > %s.%s:", |
| 164 | ataddr_string(EXTRACT_16BITS(&dp->dstNet)((u_int16_t)*((const u_int8_t *)(&dp->dstNet) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&dp->dstNet) + 1) ), dp->dstNode), |
| 165 | ddpskt_string(dp->dstSkt)); |
| 166 | bp += ddpSize13; |
| 167 | length -= ddpSize13; |
| 168 | ddp_print(bp, length, dp->type, snet, dp->srcNode, dp->srcSkt); |
| 169 | break; |
| 170 | |
| 171 | #ifdef notdef |
| 172 | case lapKLAP'K': |
| 173 | klap_print(bp, length); |
| 174 | break; |
| 175 | #endif |
| 176 | |
| 177 | default: |
| 178 | printf("%d > %d at-lap#%d %d", |
| 179 | lp->src, lp->dst, lp->type, length); |
| 180 | break; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | /* XXX should probably pass in the snap header and do checks like arp_print() */ |
| 185 | void |
| 186 | aarp_print(const u_char *bp, u_int length) |
| 187 | { |
| 188 | const struct aarp *ap; |
| 189 | |
| 190 | #define AT(member)ataddr_string((ap->member[1]<<8)|ap->member[2],ap ->member[3]) ataddr_string((ap->member[1]<<8)|ap->member[2],ap->member[3]) |
| 191 | |
| 192 | printf("aarp "); |
| 193 | ap = (const struct aarp *)bp; |
| 194 | if (ntohs(ap->htype)(__uint16_t)(__builtin_constant_p(ap->htype) ? (__uint16_t )(((__uint16_t)(ap->htype) & 0xffU) << 8 | ((__uint16_t )(ap->htype) & 0xff00U) >> 8) : __swap16md(ap-> htype)) == 1 && ntohs(ap->ptype)(__uint16_t)(__builtin_constant_p(ap->ptype) ? (__uint16_t )(((__uint16_t)(ap->ptype) & 0xffU) << 8 | ((__uint16_t )(ap->ptype) & 0xff00U) >> 8) : __swap16md(ap-> ptype)) == ETHERTYPE_ATALK0x809B && |
| 195 | ap->halen == 6 && ap->palen == 4 ) |
| 196 | switch (ntohs(ap->op)(__uint16_t)(__builtin_constant_p(ap->op) ? (__uint16_t)(( (__uint16_t)(ap->op) & 0xffU) << 8 | ((__uint16_t )(ap->op) & 0xff00U) >> 8) : __swap16md(ap->op ))) { |
| 197 | |
| 198 | case 1: /* request */ |
| 199 | printf("who-has %s tell %s", |
| 200 | AT(pdaddr)ataddr_string((ap->pdaddr[1]<<8)|ap->pdaddr[2],ap ->pdaddr[3]), AT(psaddr)ataddr_string((ap->psaddr[1]<<8)|ap->psaddr[2],ap ->psaddr[3])); |
| 201 | return; |
| 202 | |
| 203 | case 2: /* response */ |
| 204 | printf("reply %s is-at %s", |
| 205 | AT(pdaddr)ataddr_string((ap->pdaddr[1]<<8)|ap->pdaddr[2],ap ->pdaddr[3]), etheraddr_string(ap->hdaddr)); |
| 206 | return; |
| 207 | |
| 208 | case 3: /* probe (oy!) */ |
| 209 | printf("probe %s tell %s", |
| 210 | AT(pdaddr)ataddr_string((ap->pdaddr[1]<<8)|ap->pdaddr[2],ap ->pdaddr[3]), AT(psaddr)ataddr_string((ap->psaddr[1]<<8)|ap->psaddr[2],ap ->psaddr[3])); |
| 211 | return; |
| 212 | } |
| 213 | printf("len %u op %u htype %u ptype %#x halen %u palen %u", |
| 214 | length, ntohs(ap->op)(__uint16_t)(__builtin_constant_p(ap->op) ? (__uint16_t)(( (__uint16_t)(ap->op) & 0xffU) << 8 | ((__uint16_t )(ap->op) & 0xff00U) >> 8) : __swap16md(ap->op )), ntohs(ap->htype)(__uint16_t)(__builtin_constant_p(ap->htype) ? (__uint16_t )(((__uint16_t)(ap->htype) & 0xffU) << 8 | ((__uint16_t )(ap->htype) & 0xff00U) >> 8) : __swap16md(ap-> htype)), ntohs(ap->ptype)(__uint16_t)(__builtin_constant_p(ap->ptype) ? (__uint16_t )(((__uint16_t)(ap->ptype) & 0xffU) << 8 | ((__uint16_t )(ap->ptype) & 0xff00U) >> 8) : __swap16md(ap-> ptype)), |
| 215 | ap->halen, ap->palen); |
| 216 | } |
| 217 | |
| 218 | static void |
| 219 | ddp_print(const u_char *bp, u_int length, int t, |
| 220 | u_short snet, u_char snode, u_char skt) |
| 221 | { |
| 222 | |
| 223 | if ((intptr_t)bp & (sizeof(long)-1)) { |
| 224 | static u_char *abuf = NULL((void *)0); |
| 225 | int clen = snapend - bp; |
| 226 | if (clen > snaplen) |
| 227 | clen = snaplen; |
| 228 | |
| 229 | if (abuf == NULL((void *)0)) { |
| 230 | abuf = malloc(snaplen); |
| 231 | if (abuf == NULL((void *)0)) |
| 232 | error("ddp_print: malloc"); |
| 233 | } |
| 234 | memmove((char *)abuf, (char *)bp, min(length, clen)((length)>(clen)?(clen):(length))); |
| 235 | snapend = abuf + clen; |
| 236 | packetp = abuf; |
| 237 | bp = abuf; |
| 238 | } |
| 239 | |
| 240 | switch (t) { |
| 241 | |
| 242 | case ddpNBP2: |
| 243 | nbp_print((const struct atNBP *)bp, length, snet, snode, skt); |
| 244 | break; |
| 245 | |
| 246 | case ddpATP3: |
| 247 | atp_print((const struct atATP *)bp, length); |
| 248 | break; |
| 249 | |
| 250 | default: |
| 251 | printf(" at-%s %d", tok2str(type2str, NULL((void *)0), t), length); |
| 252 | break; |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | static void |
| 257 | atp_print(const struct atATP *ap, u_int length) |
| 258 | { |
| 259 | char c; |
| 260 | u_int32_t data; |
| 261 | |
| 262 | if ((const u_char *)(ap + 1) > snapend) { |
| 263 | /* Just bail if we don't have the whole chunk. */ |
| 264 | printf("%s", tstr); |
| 265 | return; |
| 266 | } |
| 267 | length -= sizeof(*ap); |
| 268 | switch (ap->control & 0xc0) { |
| 269 | |
| 270 | case atpReqCode0x40: |
| 271 | printf(" atp-req%s %d", |
| 272 | ap->control & atpXO0x20? " " : "*", |
| 273 | EXTRACT_16BITS(&ap->transID)((u_int16_t)*((const u_int8_t *)(&ap->transID) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&ap->transID) + 1 ))); |
| 274 | |
| 275 | atp_bitmap_print(ap->bitmap); |
| 276 | |
| 277 | if (length != 0) |
| 278 | printf(" [len=%d]", length); |
| 279 | |
| 280 | switch (ap->control & (atpEOM0x10|atpSTS0x08)) { |
| 281 | case atpEOM0x10: |
| 282 | printf(" [EOM]"); |
| 283 | break; |
| 284 | case atpSTS0x08: |
| 285 | printf(" [STS]"); |
| 286 | break; |
| 287 | case atpEOM0x10|atpSTS0x08: |
| 288 | printf(" [EOM,STS]"); |
| 289 | break; |
| 290 | } |
| 291 | break; |
| 292 | |
| 293 | case atpRspCode0x80: |
| 294 | printf(" atp-resp%s%d:%d (%d)", |
| 295 | ap->control & atpEOM0x10? "*" : " ", |
| 296 | EXTRACT_16BITS(&ap->transID)((u_int16_t)*((const u_int8_t *)(&ap->transID) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&ap->transID) + 1 )), ap->bitmap, length); |
| 297 | switch (ap->control & (atpXO0x20|atpSTS0x08)) { |
| 298 | case atpXO0x20: |
| 299 | printf(" [XO]"); |
| 300 | break; |
| 301 | case atpSTS0x08: |
| 302 | printf(" [STS]"); |
| 303 | break; |
| 304 | case atpXO0x20|atpSTS0x08: |
| 305 | printf(" [XO,STS]"); |
| 306 | break; |
| 307 | } |
| 308 | break; |
| 309 | |
| 310 | case atpRelCode0xC0: |
| 311 | printf(" atp-rel %d", EXTRACT_16BITS(&ap->transID)((u_int16_t)*((const u_int8_t *)(&ap->transID) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&ap->transID) + 1 ))); |
| 312 | |
| 313 | atp_bitmap_print(ap->bitmap); |
| 314 | |
| 315 | /* length should be zero */ |
| 316 | if (length) |
| 317 | printf(" [len=%d]", length); |
| 318 | |
| 319 | /* there shouldn't be any control flags */ |
| 320 | if (ap->control & (atpXO0x20|atpEOM0x10|atpSTS0x08)) { |
| 321 | c = '['; |
| 322 | if (ap->control & atpXO0x20) { |
| 323 | printf("%cXO", c); |
| 324 | c = ','; |
| 325 | } |
| 326 | if (ap->control & atpEOM0x10) { |
| 327 | printf("%cEOM", c); |
| 328 | c = ','; |
| 329 | } |
| 330 | if (ap->control & atpSTS0x08) { |
| 331 | printf("%cSTS", c); |
| 332 | c = ','; |
Value stored to 'c' is never read | |
| 333 | } |
| 334 | printf("]"); |
| 335 | } |
| 336 | break; |
| 337 | |
| 338 | default: |
| 339 | printf(" atp-0x%x %d (%d)", ap->control, |
| 340 | EXTRACT_16BITS(&ap->transID)((u_int16_t)*((const u_int8_t *)(&ap->transID) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&ap->transID) + 1 )), length); |
| 341 | break; |
| 342 | } |
| 343 | data = EXTRACT_32BITS(&ap->userData)((u_int32_t)*((const u_int8_t *)(&ap->userData) + 0) << 24 | (u_int32_t)*((const u_int8_t *)(&ap->userData) + 1) << 16 | (u_int32_t)*((const u_int8_t *)(&ap-> userData) + 2) << 8 | (u_int32_t)*((const u_int8_t *)(& ap->userData) + 3)); |
| 344 | if (data != 0) |
| 345 | printf(" 0x%x", data); |
| 346 | } |
| 347 | |
| 348 | static void |
| 349 | atp_bitmap_print(u_char bm) |
| 350 | { |
| 351 | char c; |
| 352 | int i; |
| 353 | |
| 354 | /* |
| 355 | * The '& 0xff' below is needed for compilers that want to sign |
| 356 | * extend a u_char, which is the case with the Ultrix compiler. |
| 357 | * (gcc is smart enough to eliminate it, at least on the Sparc). |
| 358 | */ |
| 359 | if ((bm + 1) & (bm & 0xff)) { |
| 360 | c = '<'; |
| 361 | for (i = 0; bm; ++i) { |
| 362 | if (bm & 1) { |
| 363 | printf("%c%d", c, i); |
| 364 | c = ','; |
| 365 | } |
| 366 | bm >>= 1; |
| 367 | } |
| 368 | printf(">"); |
| 369 | } else { |
| 370 | for (i = 0; bm; ++i) |
| 371 | bm >>= 1; |
| 372 | if (i > 1) |
| 373 | printf("<0-%d>", i - 1); |
| 374 | else |
| 375 | printf("<0>"); |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | static void |
| 380 | nbp_print(const struct atNBP *np, u_int length, u_short snet, |
| 381 | u_char snode, u_char skt) |
| 382 | { |
| 383 | const struct atNBPtuple *tp = |
| 384 | (struct atNBPtuple *)((u_char *)np + nbpHeaderSize2); |
| 385 | int i; |
| 386 | const u_char *ep; |
| 387 | |
| 388 | if (length < nbpHeaderSize2) { |
| 389 | printf(" truncated-nbp %d", length); |
| 390 | return; |
| 391 | } |
| 392 | |
| 393 | length -= nbpHeaderSize2; |
| 394 | if (length < 8) { |
| 395 | /* must be room for at least one tuple */ |
| 396 | if (np->control == nbpNATLKerr0xf0) { |
| 397 | printf(" nbp-netatalk_err"); |
| 398 | return; |
| 399 | } else if (np->control == nbpNATLKok0xe0) { |
| 400 | printf(" nbp-netatalk_ok"); |
| 401 | return; |
| 402 | } |
| 403 | printf(" truncated-nbp nbp-0x%x %d (%d)", |
| 404 | np->control, np->id, length + nbpHeaderSize2); |
| 405 | return; |
| 406 | } |
| 407 | /* ep points to end of available data */ |
| 408 | ep = snapend; |
| 409 | if ((const u_char *)tp > ep) { |
| 410 | printf("%s", tstr); |
| 411 | return; |
| 412 | } |
| 413 | switch (i = np->control & 0xf0) { |
| 414 | |
| 415 | case nbpBrRq0x10: |
| 416 | case nbpLkUp0x20: |
| 417 | printf(i == nbpLkUp0x20? " nbp-lkup %d:":" nbp-brRq %d:", np->id); |
| 418 | if ((const u_char *)(tp + 1) > ep) { |
| 419 | printf("%s", tstr); |
| 420 | return; |
| 421 | } |
| 422 | (void)nbp_name_print(tp, ep); |
| 423 | /* |
| 424 | * look for anomalies: the spec says there can only |
| 425 | * be one tuple, the address must match the source |
| 426 | * address and the enumerator should be zero. |
| 427 | */ |
| 428 | if ((np->control & 0xf) != 1) |
| 429 | printf(" [ntup=%d]", np->control & 0xf); |
| 430 | if (tp->enumerator) |
| 431 | printf(" [enum=%d]", tp->enumerator); |
| 432 | if (EXTRACT_16BITS(&tp->net)((u_int16_t)*((const u_int8_t *)(&tp->net) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&tp->net) + 1)) != snet || |
| 433 | tp->node != snode || tp->skt != skt) |
| 434 | printf(" [addr=%s.%d]", |
| 435 | ataddr_string(EXTRACT_16BITS(&tp->net)((u_int16_t)*((const u_int8_t *)(&tp->net) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&tp->net) + 1)), |
| 436 | tp->node), tp->skt); |
| 437 | break; |
| 438 | |
| 439 | case nbpLkUpReply0x30: |
| 440 | printf(" nbp-reply %d:", np->id); |
| 441 | |
| 442 | /* print each of the tuples in the reply */ |
| 443 | for (i = np->control & 0xf; --i >= 0 && tp; ) |
| 444 | tp = nbp_tuple_print(tp, ep, snet, snode, skt); |
| 445 | break; |
| 446 | |
| 447 | case nbpNATLKrgstr0xc0: |
| 448 | case nbpNATLKunrgstr0xd0: |
| 449 | printf((i == nbpNATLKrgstr0xc0) ? |
| 450 | " nbp-netatalk_rgstr %d:" : |
| 451 | " nbp-netatalk_unrgstr %d:", |
| 452 | np->id); |
| 453 | for (i = np->control & 0xf; --i >= 0 && tp; ) |
| 454 | tp = nbp_tuple_print(tp, ep, snet, snode, skt); |
| 455 | break; |
| 456 | |
| 457 | default: |
| 458 | printf(" nbp-0x%x %d (%d)", np->control, np->id, |
| 459 | length); |
| 460 | break; |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | /* print a counted string */ |
| 465 | static const char * |
| 466 | print_cstring(const char *cp, const u_char *ep) |
| 467 | { |
| 468 | u_int length; |
| 469 | |
| 470 | if (cp >= (const char *)ep) { |
| 471 | printf("%s", tstr); |
| 472 | return (0); |
| 473 | } |
| 474 | length = *cp++; |
| 475 | |
| 476 | /* Spec says string can be at most 32 bytes long */ |
| 477 | if (length > 32) { |
| 478 | printf("[len=%d]", length); |
| 479 | return (0); |
| 480 | } |
| 481 | while ((int)--length >= 0) { |
| 482 | if (cp >= (char *)ep) { |
| 483 | printf("%s", tstr); |
| 484 | return (0); |
| 485 | } |
| 486 | putchar(*cp++)(!__isthreaded ? __sputc(*cp++, (&__sF[1])) : (putc)(*cp++ , (&__sF[1]))); |
| 487 | } |
| 488 | return (cp); |
| 489 | } |
| 490 | |
| 491 | static const struct atNBPtuple * |
| 492 | nbp_tuple_print(const struct atNBPtuple *tp, |
| 493 | const u_char *ep, |
| 494 | u_short snet, u_char snode, |
| 495 | u_char skt) |
| 496 | { |
| 497 | const struct atNBPtuple *tpn; |
| 498 | |
| 499 | if ((const u_char *)(tp + 1) > ep) { |
| 500 | printf("%s", tstr); |
| 501 | return 0; |
| 502 | } |
| 503 | tpn = nbp_name_print(tp, ep); |
| 504 | |
| 505 | /* if the enumerator isn't 1, print it */ |
| 506 | if (tp->enumerator != 1) |
| 507 | printf("(%d)", tp->enumerator); |
| 508 | |
| 509 | /* if the socket doesn't match the src socket, print it */ |
| 510 | if (tp->skt != skt) |
| 511 | printf(" %d", tp->skt); |
| 512 | |
| 513 | /* if the address doesn't match the src address, it's an anomaly */ |
| 514 | if (EXTRACT_16BITS(&tp->net)((u_int16_t)*((const u_int8_t *)(&tp->net) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&tp->net) + 1)) != snet || tp->node != snode) |
| 515 | printf(" [addr=%s]", |
| 516 | ataddr_string(EXTRACT_16BITS(&tp->net)((u_int16_t)*((const u_int8_t *)(&tp->net) + 0) << 8 | (u_int16_t)*((const u_int8_t *)(&tp->net) + 1)), tp->node)); |
| 517 | |
| 518 | return (tpn); |
| 519 | } |
| 520 | |
| 521 | static const struct atNBPtuple * |
| 522 | nbp_name_print(const struct atNBPtuple *tp, const u_char *ep) |
| 523 | { |
| 524 | const char *cp = (const char *)tp + nbpTupleSize5; |
| 525 | |
| 526 | putchar(' ')(!__isthreaded ? __sputc(' ', (&__sF[1])) : (putc)(' ', ( &__sF[1]))); |
| 527 | |
| 528 | /* Object */ |
| 529 | putchar('"')(!__isthreaded ? __sputc('"', (&__sF[1])) : (putc)('"', ( &__sF[1]))); |
| 530 | if ((cp = print_cstring(cp, ep)) != NULL((void *)0)) { |
| 531 | /* Type */ |
| 532 | putchar(':')(!__isthreaded ? __sputc(':', (&__sF[1])) : (putc)(':', ( &__sF[1]))); |
| 533 | if ((cp = print_cstring(cp, ep)) != NULL((void *)0)) { |
| 534 | /* Zone */ |
| 535 | putchar('@')(!__isthreaded ? __sputc('@', (&__sF[1])) : (putc)('@', ( &__sF[1]))); |
| 536 | if ((cp = print_cstring(cp, ep)) != NULL((void *)0)) |
| 537 | putchar('"')(!__isthreaded ? __sputc('"', (&__sF[1])) : (putc)('"', ( &__sF[1]))); |
| 538 | } |
| 539 | } |
| 540 | return ((const struct atNBPtuple *)cp); |
| 541 | } |
| 542 | |
| 543 | |
| 544 | #define HASHNAMESIZE4096 4096 |
| 545 | |
| 546 | struct hnamemem { |
| 547 | int addr; |
| 548 | char *name; |
| 549 | struct hnamemem *nxt; |
| 550 | }; |
| 551 | |
| 552 | static struct hnamemem hnametable[HASHNAMESIZE4096]; |
| 553 | |
| 554 | static const char * |
| 555 | ataddr_string(u_short atnet, u_char athost) |
| 556 | { |
| 557 | struct hnamemem *tp, *tp2; |
| 558 | int i = (atnet << 8) | athost; |
| 559 | char nambuf[HOST_NAME_MAX255+1 + 20]; |
| 560 | |
| 561 | for (tp = &hnametable[i & (HASHNAMESIZE4096-1)]; tp->nxt; tp = tp->nxt) |
| 562 | if (tp->addr == i) |
| 563 | return (tp->name); |
| 564 | |
| 565 | /* didn't have the node name -- see if we've got the net name */ |
| 566 | i |= 255; |
| 567 | for (tp2 = &hnametable[i & (HASHNAMESIZE4096-1)]; tp2->nxt; tp2 = tp2->nxt) |
| 568 | if (tp2->addr == i) { |
| 569 | tp->addr = (atnet << 8) | athost; |
| 570 | tp->nxt = newhnamemem(); |
| 571 | (void)snprintf(nambuf, sizeof nambuf, "%s.%d", |
| 572 | tp2->name, athost); |
| 573 | tp->name = savestr(nambuf); |
| 574 | return (tp->name); |
| 575 | } |
| 576 | |
| 577 | tp->addr = (atnet << 8) | athost; |
| 578 | tp->nxt = newhnamemem(); |
| 579 | if (athost != 255) |
| 580 | (void)snprintf(nambuf, sizeof nambuf, "%d.%d.%d", |
| 581 | atnet >> 8, atnet & 0xff, athost); |
| 582 | else |
| 583 | (void)snprintf(nambuf, sizeof nambuf, "%d.%d", |
| 584 | atnet >> 8, atnet & 0xff); |
| 585 | tp->name = savestr(nambuf); |
| 586 | |
| 587 | return (tp->name); |
| 588 | } |
| 589 | |
| 590 | static struct tok skt2str[] = { |
| 591 | { rtmpSkt1, "rtmp" }, /* routing table maintenance */ |
| 592 | { nbpSkt2, "nis" }, /* name info socket */ |
| 593 | { echoSkt4, "echo" }, /* AppleTalk echo protocol */ |
| 594 | { zipSkt6, "zip" }, /* zone info protocol */ |
| 595 | { 0, NULL((void *)0) } |
| 596 | }; |
| 597 | |
| 598 | static const char * |
| 599 | ddpskt_string(int skt) |
| 600 | { |
| 601 | static char buf[12]; |
| 602 | |
| 603 | if (nflag) { |
| 604 | (void)snprintf(buf, sizeof buf, "%d", skt); |
| 605 | return (buf); |
| 606 | } |
| 607 | return (tok2str(skt2str, "%d", skt)); |
| 608 | } |