epan/address_to_str.c

   1 /* address_to_str.c
   2  * Routines for utilities to convert addresses to strings.
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #ifdef HAVE_SYS_TYPES_H
  31 # include <sys/types.h>         /* needed for <netinet/in.h> */
  32 #endif
  33
  34 #ifdef HAVE_NETINET_IN_H
  35 # include <netinet/in.h>        /* needed for <arpa/inet.h> on some platforms */
  36 #endif
  37
  38 #ifdef HAVE_ARPA_INET_H
  39 #include <arpa/inet.h>
  40 #endif
  41
  42 #ifdef HAVE_SYS_SOCKET_H
  43 #include <sys/socket.h>         /* needed to define AF_ values on UNIX */
  44 #endif
  45
  46 #ifdef HAVE_WINSOCK2_H
  47 #include <winsock2.h>           /* needed to define AF_ values on Windows */
  48 #endif
  49
  50 #ifdef NEED_INET_V6DEFS_H
  51 # include "wsutil/inet_v6defs.h"
  52 #endif
  53
  54 #include "to_str-int.h"
  55 #include "to_str.h"
  56 #include "value_string.h"
  57 #include "addr_resolv.h"
  58 #include "wsutil/pint.h"
  59 #include "atalk-utils.h"
  60 #include "sna-utils.h"
  61 #include "osi-utils.h"
  62 #include <epan/dissectors/packet-mtp3.h>
  63 #include <stdio.h>
  64 #include "emem.h"
  65
  66 /*
  67  * If a user _does_ pass in a too-small buffer, this is probably
  68  * going to be too long to fit.  However, even a partial string
  69  * starting with "[Buf" should provide enough of a clue to be
  70  * useful.
  71  */
  72 #define BUF_TOO_SMALL_ERR "[Buffer too small]"
  73
  74 /* Wrapper for the most common case of asking
  75  * for a string using a colon as the hex-digit separator.
  76  */
  77 /* XXX FIXME
  78 remove this one later when every call has been converted to ep_address_to_str()
  79 */
  80 const gchar *
  81 ether_to_str(const guint8 *ad)
  82 {
  83     return bytestring_to_str(ad, 6, ':');
  84 }
  85
  86 const gchar *
  87 tvb_ether_to_str(tvbuff_t *tvb, const gint offset)
  88 {
  89     return bytestring_to_str(tvb_get_ptr(tvb, offset, 6), 6, ':');
  90 }
  91
  92 /*
  93  This function is very fast and this function is called a lot.
  94  XXX update the ep_address_to_str stuff to use this function.
  95 */
  96 const gchar *
  97 ip_to_str(const guint8 *ad) {
  98     gchar *buf;
  99
 100     buf=(gchar *)ep_alloc(MAX_IP_STR_LEN);
 101     ip_to_str_buf(ad, buf, MAX_IP_STR_LEN);
 102     return buf;
 103 }
 104
 105 #define IPV4_LENGTH 4
 106 const gchar *
 107 tvb_ip_to_str(tvbuff_t *tvb, const gint offset)
 108 {
 109     gchar *buf;
 110
 111     buf=(gchar *)ep_alloc(MAX_IP_STR_LEN);
 112     ip_to_str_buf(tvb_get_ptr(tvb, offset, IPV4_LENGTH), buf, MAX_IP_STR_LEN);
 113     return buf;
 114 }
 115
 116 /* XXX FIXME
 117 remove this one later when every call has been converted to ep_address_to_str()
 118 */
 119 gchar *
 120 ip6_to_str(const struct e_in6_addr *ad) {
 121     gchar *str;
 122
 123     str=(gchar *)ep_alloc(MAX_IP6_STR_LEN);
 124     ip6_to_str_buf(ad, str);
 125     return str;
 126 }
 127
 128 #define IPV6_LENGTH 16
 129 gchar *
 130 tvb_ip6_to_str(tvbuff_t *tvb, const gint offset)
 131 {
 132     gchar *buf;
 133
 134     buf=(gchar *)ep_alloc(MAX_IP6_STR_LEN);
 135     ip6_to_str_buf((const struct e_in6_addr *)tvb_get_ptr(tvb, offset, IPV6_LENGTH), buf);
 136     return buf;
 137 }
 138
 139 /* const char *
 140  * inet_ntop6(src, dst, size)
 141  *  convert IPv6 binary address into presentation (printable) format
 142  * author:
 143  *  Paul Vixie, 1996.
 144  */
 145 static void
 146 ip6_to_str_buf_len(const guchar* src, char *buf, size_t buf_len)
 147 {
 148     struct { int base, len; } best, cur;
 149     guint words[8];
 150     int i;
 151
 152     if (buf_len < MAX_IP6_STR_LEN) { /* buf_len < 40 */
 153         g_strlcpy(buf, BUF_TOO_SMALL_ERR, buf_len); /* Let the unexpected value alert user */
 154         return;
 155     }
 156
 157     /*
 158      * Preprocess:
 159      *  Copy the input (bytewise) array into a wordwise array.
 160      *  Find the longest run of 0x00's in src[] for :: shorthanding.
 161      */
 162     for (i = 0; i < 16; i += 2) {
 163         words[i / 2] = (src[i+1] << 0);
 164         words[i / 2] |= (src[i] << 8);
 165     }
 166     best.base = -1; best.len = 0;
 167     cur.base = -1;  cur.len = 0;
 168     for (i = 0; i < 8; i++) {
 169         if (words[i] == 0) {
 170             if (cur.base == -1) {
 171                 cur.base = i;
 172                 cur.len = 1;
 173             } else
 174                 cur.len++;
 175         } else {
 176             if (cur.base != -1) {
 177                 if (best.base == -1 || cur.len > best.len)
 178                     best = cur;
 179                 cur.base = -1;
 180             }
 181         }
 182     }
 183     if (cur.base != -1) {
 184         if (best.base == -1 || cur.len > best.len)
 185             best = cur;
 186     }
 187     if (best.base != -1 && best.len < 2)
 188         best.base = -1;
 189
 190     /* Is this address an encapsulated IPv4? */
 191     /* XXX,
 192      * Orginal code dated 1996 uses ::/96 as a valid IPv4-compatible addresses
 193      * but since Feb 2006 ::/96 is deprecated one.
 194      * Quoting wikipedia [0]:
 195      * > The 96-bit zero-value prefix ::/96, originally known as IPv4-compatible
 196      * > addresses, was mentioned in 1995[35] but first described in 1998.[41]
 197      * > This class of addresses was used to represent IPv4 addresses within
 198      * > an IPv6 transition technology. Such an IPv6 address has its first
 199      * > (most significant) 96 bits set to zero, while its last 32 bits are the
 200      * > IPv4 address that is represented.
 201      * > In February 2006 the Internet Engineering Task Force (IETF) has deprecated
 202      * > the use of IPv4-compatible addresses.[1] The only remaining use of this address
 203      * > format is to represent an IPv4 address in a table or database with fixed size
 204      * > members that must also be able to store an IPv6 address.
 205      *
 206      * If needed it can be fixed by changing next line:
 207      *   if (best.base == 0 && (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
 208      * to:
 209      *   if (best.base == 0 && best.len == 5 && words[5] == 0xffff)
 210      *
 211      * [0] http://en.wikipedia.org/wiki/IPv6_address#Historical_notes
 212      */
 213
 214     if (best.base == 0 && (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
 215     {
 216         /* best.len == 6 -> ::IPv4; 5 -> ::ffff:IPv4 */
 217         buf = g_stpcpy(buf, "::");
 218         if (best.len == 5)
 219         buf = g_stpcpy(buf, "ffff:");
 220         ip_to_str_buf(src + 12, buf, MAX_IP_STR_LEN);
 221         /* max: 2 + 5 + 16 == 23 bytes */
 222         return;
 223     }
 224
 225     /*
 226      * Format the result.
 227      */
 228     for (i = 0; i < 8; i++) {
 229         /* Are we inside the best run of 0x00's? */
 230         if (i == best.base) {
 231             *buf++ = ':';
 232             i += best.len;
 233
 234             /* Was it a trailing run of 0x00's? */
 235             if (i == 8) {
 236                 *buf++ = ':';
 237                 break;
 238             }
 239         }
 240         /* Are we following an initial run of 0x00s or any real hex? */
 241         if (i != 0)
 242             *buf++ = ':';
 243
 244         buf = word_to_hex_npad(buf, words[i]); /* max: 4B */
 245         /* max: 8 * 4 + 7 == 39 bytes */
 246     }
 247     *buf = '\0'; /* 40 byte */
 248 }
 249
 250 void
 251 ip6_to_str_buf(const struct e_in6_addr *ad, gchar *buf)
 252 {
 253     ip6_to_str_buf_len((const guchar*)ad, buf, MAX_IP6_STR_LEN);
 254 }
 255
 256 gchar*
 257 ipx_addr_to_str(const guint32 net, const guint8 *ad)
 258 {
 259     gchar   *buf;
 260     char    *name;
 261
 262     name = get_ether_name_if_known(ad);
 263
 264     if (name) {
 265         buf = ep_strdup_printf("%s.%s", get_ipxnet_name(net), name);
 266     }
 267     else {
 268         buf = ep_strdup_printf("%s.%s", get_ipxnet_name(net),
 269             bytestring_to_str(ad, 6, '\0'));
 270     }
 271     return buf;
 272 }
 273
 274 gchar*
 275 ipxnet_to_string(const guint8 *ad)
 276 {
 277     guint32 addr = pntohl(ad);
 278     return ipxnet_to_str_punct(addr, ' ');
 279 }
 280
 281 gchar *
 282 ipxnet_to_str_punct(const guint32 ad, const char punct)
 283 {
 284     gchar *buf = (gchar *)ep_alloc(12);
 285
 286     *dword_to_hex_punct(buf, ad, punct) = '\0';
 287     return buf;
 288 }
 289
 290 static void
 291 vines_addr_to_str_buf(const guint8 *addrp, gchar *buf, int buf_len)
 292 {
 293     if (buf_len < 14) {
 294         g_strlcpy(buf, BUF_TOO_SMALL_ERR, buf_len); /* Let the unexpected value alert user */
 295         return;
 296     }
 297
 298     buf = dword_to_hex(buf, pntohl(&addrp[0])); /* 8 bytes */
 299     *buf++ = '.'; /* 1 byte */
 300     buf = word_to_hex(buf, pntohs(&addrp[4])); /* 4 bytes */
 301     *buf = '\0'; /* 1 byte */
 302 }
 303
 304 gchar *
 305 tvb_vines_addr_to_str(tvbuff_t *tvb, const gint offset)
 306 {
 307     gchar *buf;
 308
 309     buf=(gchar *)ep_alloc(214); /* XXX, 14 here? */
 310
 311     vines_addr_to_str_buf(tvb_get_ptr(tvb, offset, VINES_ADDR_LEN), buf, 214);
 312     return buf;
 313 }
 314
 315 /*
 316  This function is very fast and this function is called a lot.
 317  XXX update the ep_address_to_str stuff to use this function.
 318 */
 319 gchar *
 320 eui64_to_str(const guint64 ad) {
 321     gchar *buf;
 322     guint8 *p_eui64;
 323
 324     p_eui64 = (guint8 *)ep_alloc(8);
 325     buf=(gchar *)ep_alloc(EUI64_STR_LEN);
 326
 327     /* Copy and convert the address to network byte order. */
 328     *(guint64 *)(void *)(p_eui64) = pntoh64(&(ad));
 329
 330     g_snprintf(buf, EUI64_STR_LEN, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x:%.2x:%.2x",
 331     p_eui64[0], p_eui64[1], p_eui64[2], p_eui64[3],
 332     p_eui64[4], p_eui64[5], p_eui64[6], p_eui64[7] );
 333     return buf;
 334 }
 335 gchar *
 336 tvb_eui64_to_str(tvbuff_t *tvb, const gint offset, const guint encoding)
 337 {
 338     if(encoding)
 339     {
 340         return eui64_to_str(tvb_get_letoh64(tvb, offset));
 341     }else {
 342         return eui64_to_str(tvb_get_ntoh64(tvb, offset));
 343     }
 344 }
 345
 346 static void
 347 usb_addr_to_str_buf(const guint8 *addrp, gchar *buf, int buf_len)
 348 {
 349     if(pletohl(&addrp[0])==0xffffffff){
 350         g_snprintf(buf, buf_len, "host");
 351     } else {
 352         g_snprintf(buf, buf_len, "%d.%d", pletohl(&addrp[0]), pletohl(&addrp[4]));
 353     }
 354 }
 355
 356 static void
 357 tipc_addr_to_str_buf( const guint8 *data, gchar *buf, int buf_len){
 358     guint8 zone;
 359     guint16 subnetwork;
 360     guint16 processor;
 361     guint32 tipc_address;
 362
 363     tipc_address = data[0];
 364     tipc_address = (tipc_address << 8) ^ data[1];
 365     tipc_address = (tipc_address << 8) ^ data[2];
 366     tipc_address = (tipc_address << 8) ^ data[3];
 367
 368     processor = tipc_address & 0x0fff;
 369
 370     tipc_address = tipc_address >> 12;
 371     subnetwork = tipc_address & 0x0fff;
 372
 373     tipc_address = tipc_address >> 12;
 374     zone = tipc_address & 0xff;
 375
 376     g_snprintf(buf,buf_len,"%u.%u.%u",zone,subnetwork,processor);
 377 }
 378
 379 static void
 380 ib_addr_to_str_buf( const address *addr, gchar *buf, int buf_len){
 381     if (addr->len >= 16) { /* GID is 128bits */
 382         #define PREAMBLE_STR_LEN ((int)(sizeof("GID: ") - 1))
 383         g_snprintf(buf,buf_len,"GID: ");
 384         if (buf_len < PREAMBLE_STR_LEN ||
 385                 inet_ntop(AF_INET6, addr->data, buf + PREAMBLE_STR_LEN,
 386                           buf_len - PREAMBLE_STR_LEN) == NULL ) /* Returns NULL if no space and does not touch buf */
 387             g_snprintf ( buf, buf_len, BUF_TOO_SMALL_ERR ); /* Let the unexpected value alert user */
 388     } else {    /* this is a LID (16 bits) */
 389         guint16 lid_number;
 390
 391         memcpy((void *)&lid_number, addr->data, sizeof lid_number);
 392         g_snprintf(buf,buf_len,"LID: %u",lid_number);
 393     }
 394 }
 395
 396 /* XXX FIXME
 397 remove this one later when every call has been converted to ep_address_to_str()
 398 */
 399 const gchar *
 400 fc_to_str(const guint8 *ad)
 401 {
 402     return bytestring_to_str (ad, 3, '.');
 403 }
 404
 405 const gchar *
 406 tvb_fc_to_str(tvbuff_t *tvb, const gint offset)
 407 {
 408     return bytestring_to_str (tvb_get_ptr(tvb, offset, 3), 3, '.');
 409 }
 410
 411 /* FC Network Header Network Address Authority Identifiers */
 412
 413 #define FC_NH_NAA_IEEE          1   /* IEEE 802.1a */
 414 #define FC_NH_NAA_IEEE_E        2   /* IEEE Exteneded */
 415 #define FC_NH_NAA_LOCAL         3
 416 #define FC_NH_NAA_IP            4   /* 32-bit IP address */
 417 #define FC_NH_NAA_IEEE_R        5   /* IEEE Registered */
 418 #define FC_NH_NAA_IEEE_R_E      6   /* IEEE Registered Exteneded */
 419 /* according to FC-PH 3 draft these are now reclaimed and reserved */
 420 #define FC_NH_NAA_CCITT_INDV    12  /* CCITT 60 bit individual address */
 421 #define FC_NH_NAA_CCITT_GRP     14  /* CCITT 60 bit group address */
 422
 423 gchar *
 424 fcwwn_to_str (const guint8 *ad)
 425 {
 426     int fmt;
 427     guint8 oui[6];
 428     gchar *ethstr;
 429     gchar *ethptr;
 430
 431     if (ad == NULL) return NULL;
 432
 433     ethstr=(gchar *)ep_alloc(512);
 434     ethptr = bytes_to_hexstr_punct(ethstr, ad, 8, ':'); /* 23 bytes */
 435
 436     fmt = (ad[0] & 0xF0) >> 4;
 437
 438     switch (fmt) {
 439
 440     case FC_NH_NAA_IEEE:
 441     case FC_NH_NAA_IEEE_E:
 442         memcpy (oui, &ad[2], 6);
 443
 444         g_snprintf (ethptr, 512-23, " (%s)", get_manuf_name (oui));
 445         break;
 446
 447     case FC_NH_NAA_IEEE_R:
 448         oui[0] = ((ad[0] & 0x0F) << 4) | ((ad[1] & 0xF0) >> 4);
 449         oui[1] = ((ad[1] & 0x0F) << 4) | ((ad[2] & 0xF0) >> 4);
 450         oui[2] = ((ad[2] & 0x0F) << 4) | ((ad[3] & 0xF0) >> 4);
 451         oui[3] = ((ad[3] & 0x0F) << 4) | ((ad[4] & 0xF0) >> 4);
 452         oui[4] = ((ad[4] & 0x0F) << 4) | ((ad[5] & 0xF0) >> 4);
 453         oui[5] = ((ad[5] & 0x0F) << 4) | ((ad[6] & 0xF0) >> 4);
 454
 455         g_snprintf (ethptr, 512-23, " (%s)", get_manuf_name (oui));
 456         break;
 457
 458     default:
 459         *ethptr = '\0';
 460         break;
 461     }
 462     return (ethstr);
 463 }
 464
 465 gchar *
 466 tvb_fcwwn_to_str(tvbuff_t *tvb, const gint offset)
 467 {
 468     return fcwwn_to_str (tvb_get_ptr(tvb, offset, 8));
 469 }
 470
 471 /* XXX FIXME
 472 remove this one later when every call has been converted to address_to_str()
 473 */
 474 const gchar *
 475 ax25_to_str(const guint8 *ad)
 476 {
 477     return bytestring_to_str(ad, 7, ':');
 478 }
 479
 480 /* XXX FIXME
 481 remove this one later when every call has been converted to address_to_str()
 482 */
 483 gchar *
 484 get_ax25_name(const guint8 *ad)
 485 {
 486     address addr;
 487
 488     addr.type = AT_AX25;
 489     addr.len  = 7;
 490     addr.data = ad;
 491
 492     return address_to_str( &addr );
 493 }
 494
 495 /*XXX FIXME the code below may be called very very frequently in the future.
 496   optimize it for speed and get rid of the slow sprintfs */
 497 /* XXX - perhaps we should have individual address types register
 498    a table of routines to do operations such as address-to-name translation,
 499    address-to-string translation, and the like, and have this call them,
 500    and also have an address-to-string-with-a-name routine */
 501 /* XXX - use this, and that future address-to-string-with-a-name routine,
 502    in "col_set_addr()"; it might also be useful to have address types
 503    export the names of the source and destination address fields, so
 504    that "col_set_addr()" need know nothing whatsoever about particular
 505    address types */
 506 /* convert an address struct into a printable string */
 507
 508 gchar*
 509 ep_address_to_str(const address *addr)
 510 {
 511     gchar *str;
 512
 513     str=(gchar *)ep_alloc(MAX_ADDR_STR_LEN);
 514     address_to_str_buf(addr, str, MAX_ADDR_STR_LEN);
 515     return str;
 516 }
 517
 518 /* The called routines use se_alloc'ed memory */
 519 gchar*
 520 se_address_to_str(const address *addr)
 521 {
 522     gchar *str;
 523
 524     str=(gchar *)se_alloc(MAX_ADDR_STR_LEN);
 525     address_to_str_buf(addr, str, MAX_ADDR_STR_LEN);
 526     return str;
 527 }
 528
 529 void
 530 address_to_str_buf(const address *addr, gchar *buf, int buf_len)
 531 {
 532     const guint8 *addrdata;
 533     struct atalk_ddp_addr ddp_addr;
 534     guint16 ieee_802_15_4_short_addr;
 535
 536     char temp[32];
 537     char *tempptr = temp;
 538
 539     if (!buf || !buf_len)
 540         return;
 541
 542     switch(addr->type){
 543     case AT_NONE:
 544         buf[0] = '\0';
 545         break;
 546     case AT_ETHER: /* 18 bytes */
 547         tempptr = bytes_to_hexstr_punct(tempptr, (const guint8 *)addr->data, 6, ':'); /* 17 bytes */
 548         break;
 549     case AT_IPv4:
 550         ip_to_str_buf((const guint8 *)addr->data, buf, buf_len);
 551         break;
 552     case AT_IPv6:
 553         ip6_to_str_buf_len((const guchar *)addr->data, buf, buf_len);
 554         break;
 555     case AT_IPX: /* 22 bytes */
 556         addrdata = (const guint8 *)addr->data;
 557         tempptr = bytes_to_hexstr(tempptr, &addrdata[0], 4); /* 8 bytes */
 558         *tempptr++ = '.'; /*1 byte */
 559         tempptr = bytes_to_hexstr(tempptr, &addrdata[4], 6); /* 12 bytes */
 560         break;
 561     case AT_SNA:
 562         sna_fid_to_str_buf(addr, buf, buf_len);
 563         break;
 564     case AT_ATALK:
 565         memcpy(&ddp_addr, addr->data, sizeof ddp_addr);
 566         atalk_addr_to_str_buf(&ddp_addr, buf, buf_len);
 567         break;
 568     case AT_VINES:
 569         vines_addr_to_str_buf((const guint8 *)addr->data, buf, buf_len);
 570         break;
 571     case AT_USB:
 572         usb_addr_to_str_buf((const guint8 *)addr->data, buf, buf_len);
 573         break;
 574     case AT_OSI:
 575         print_nsap_net_buf((const guint8 *)addr->data, addr->len, buf, buf_len);
 576         break;
 577     case AT_ARCNET: /* 5 bytes */
 578         tempptr = g_stpcpy(tempptr, "0x"); /* 2 bytes */
 579         tempptr = bytes_to_hexstr(tempptr, (const guint8 *)addr->data, 1); /* 2 bytes */
 580         break;
 581     case AT_FC: /* 9 bytes */
 582         tempptr = bytes_to_hexstr_punct(tempptr, (const guint8 *)addr->data, 3, '.'); /* 8 bytes */
 583         break;
 584     case AT_SS7PC:
 585         mtp3_addr_to_str_buf((const mtp3_addr_pc_t *)addr->data, buf, buf_len);
 586         break;
 587     case AT_STRINGZ:
 588         g_strlcpy(buf, (const gchar *)addr->data, buf_len);
 589         break;
 590         case AT_EUI64: /* 24 bytes */
 591         tempptr = bytes_to_hexstr_punct(tempptr, (const guint8 *)addr->data, 8, ':'); /* 23 bytes */
 592         break;
 593     case AT_URI: {
 594         int copy_len = addr->len < (buf_len - 1) ? addr->len : (buf_len - 1);
 595         memcpy(buf, addr->data, copy_len );
 596         buf[copy_len] = '\0';
 597         }
 598         break;
 599     case AT_TIPC:
 600         tipc_addr_to_str_buf((const guint8 *)addr->data, buf, buf_len);
 601         break;
 602     case AT_IB:
 603         ib_addr_to_str_buf(addr, buf, buf_len);
 604         break;
 605     case AT_AX25:
 606         addrdata = (const guint8 *)addr->data;
 607         g_snprintf(buf, buf_len, "%c%c%c%c%c%c-%02d",
 608                 (addrdata[0] >> 1) & 0x7f, (addrdata[1] >> 1) & 0x7f, (addrdata[2] >> 1) & 0x7f,
 609                 (addrdata[3] >> 1) & 0x7f, (addrdata[4] >> 1) & 0x7f, (addrdata[5] >> 1) & 0x7f,
 610                 (addrdata[6] >> 1) & 0x0f );
 611         break;
 612     case AT_IEEE_802_15_4_SHORT:
 613         ieee_802_15_4_short_addr = pletohs(addr->data);
 614         if (ieee_802_15_4_short_addr == 0xffff)
 615             g_snprintf(buf, buf_len, "Broadcast");
 616         else
 617             g_snprintf(buf, buf_len, "0x%04x", ieee_802_15_4_short_addr);
 618         break;
 619     default:
 620         g_assert_not_reached();
 621     }
 622
 623     /* copy to output buffer */
 624     if (tempptr != temp) {
 625         size_t temp_len = (size_t) (tempptr - temp);
 626
 627         if (temp_len < (size_t) buf_len) {
 628             memcpy(buf, temp, temp_len);
 629             buf[temp_len] = '\0';
 630         } else
 631          g_strlcpy(buf, BUF_TOO_SMALL_ERR, buf_len);/* Let the unexpected value alert user */
 632     }
 633 }
 634
 635 /*
 636  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 637  *
 638  * Local variables:
 639  * c-basic-offset: 4
 640  * tab-width: 8
 641  * indent-tabs-mode: nil
 642  * End:
 643  *
 644  * vi: set shiftwidth=4 tabstop=8 expandtab:
 645  * :indentSize=4:tabSize=8:noTabs=true:
 646  */