lib/libsdp/util.c

   1 /* $NetBSD: util.c,v 1.1 2006/06/19 15:44:36 gdamore Exp $ */
   2 /* $DragonFly: src/lib/libsdp/util.c,v 1.2 2008/09/30 16:57:05 swildner Exp $ */
   3
   4 /*-
   5  * Copyright (c) 2006 Itronix Inc.
   6  * All rights reserved.
   7  *
   8  * Written by Iain Hibbert for Itronix Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. The name of Itronix Inc. may not be used to endorse
  19  *    or promote products derived from this software without specific
  20  *    prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
  26  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  29  * ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34 /*
  35  * util.c
  36  *
  37  * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  *
  61  * $Id: util.c,v 1.1 2006/06/19 15:44:36 gdamore Exp $
  62  * $FreeBSD: src/lib/libsdp/util.c,v 1.5 2005/05/27 19:11:33 emax Exp $
  63  */
  64
  65 #include <netinet/in.h>
  66 #include <bluetooth.h>
  67 #include <stdio.h>
  68 #include <sdp.h>
  69
  70 /*
  71  * SDP attribute description
  72  */
  73
  74 struct sdp_attr_desc {
  75         uint32_t         attr;
  76         char const      *desc;
  77 };
  78 typedef struct sdp_attr_desc    sdp_attr_desc_t;
  79 typedef struct sdp_attr_desc *  sdp_attr_desc_p;
  80
  81 static sdp_attr_desc_t  sdp_uuids_desc[] = {
  82 { SDP_UUID_PROTOCOL_SDP, "SDP", },
  83 { SDP_UUID_PROTOCOL_UDP, "UDP", },
  84 { SDP_UUID_PROTOCOL_RFCOMM, "RFCOMM", },
  85 { SDP_UUID_PROTOCOL_TCP, "TCP", },
  86 { SDP_UUID_PROTOCOL_TCS_BIN, "TCS BIN", },
  87 { SDP_UUID_PROTOCOL_TCS_AT, "TCS AT", },
  88 { SDP_UUID_PROTOCOL_OBEX, "OBEX", },
  89 { SDP_UUID_PROTOCOL_IP, "IP", },
  90 { SDP_UUID_PROTOCOL_FTP, "FTP", },
  91 { SDP_UUID_PROTOCOL_HTTP, "HTTP", },
  92 { SDP_UUID_PROTOCOL_WSP, "WSP", },
  93 { SDP_UUID_PROTOCOL_BNEP, "BNEP", },
  94 { SDP_UUID_PROTOCOL_UPNP, "UPNP", },
  95 { SDP_UUID_PROTOCOL_HIDP, "HIDP", },
  96 { SDP_UUID_PROTOCOL_HARDCOPY_CONTROL_CHANNEL, "Hardcopy Control Channel", },
  97 { SDP_UUID_PROTOCOL_HARDCOPY_DATA_CHANNEL, "Hardcopy Data Channel", },
  98 { SDP_UUID_PROTOCOL_HARDCOPY_NOTIFICATION, "Hardcopy Notification", },
  99 { SDP_UUID_PROTOCOL_AVCTP, "AVCTP", },
 100 { SDP_UUID_PROTOCOL_AVDTP, "AVDTP", },
 101 { SDP_UUID_PROTOCOL_CMPT, "CMPT", },
 102 { SDP_UUID_PROTOCOL_UDI_C_PLANE, "UDI C-Plane", },
 103 { SDP_UUID_PROTOCOL_L2CAP, "L2CAP", },
 104 /* Service Class IDs/Bluetooth Profile IDs */
 105 { SDP_SERVICE_CLASS_SERVICE_DISCOVERY_SERVER, "Service Discovery Server", },
 106 { SDP_SERVICE_CLASS_BROWSE_GROUP_DESCRIPTOR, "Browse Group Descriptor", },
 107 { SDP_SERVICE_CLASS_PUBLIC_BROWSE_GROUP, "Public Browse Group", },
 108 { SDP_SERVICE_CLASS_SERIAL_PORT, "Serial Port", },
 109 { SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, "LAN Access Using PPP", },
 110 { SDP_SERVICE_CLASS_DIALUP_NETWORKING, "Dial-Up Networking", },
 111 { SDP_SERVICE_CLASS_IR_MC_SYNC, "IrMC Sync", },
 112 { SDP_SERVICE_CLASS_OBEX_OBJECT_PUSH, "OBEX Object Push", },
 113 { SDP_SERVICE_CLASS_OBEX_FILE_TRANSFER, "OBEX File Transfer", },
 114 { SDP_SERVICE_CLASS_IR_MC_SYNC_COMMAND, "IrMC Sync Command", },
 115 { SDP_SERVICE_CLASS_HEADSET, "Headset", },
 116 { SDP_SERVICE_CLASS_CORDLESS_TELEPHONY, "Cordless Telephony", },
 117 { SDP_SERVICE_CLASS_AUDIO_SOURCE, "Audio Source", },
 118 { SDP_SERVICE_CLASS_AUDIO_SINK, "Audio Sink", },
 119 { SDP_SERVICE_CLASS_AV_REMOTE_CONTROL_TARGET, "A/V Remote Control Target", },
 120 { SDP_SERVICE_CLASS_ADVANCED_AUDIO_DISTRIBUTION, "Advanced Audio Distribution", },
 121 { SDP_SERVICE_CLASS_AV_REMOTE_CONTROL, "A/V Remote Control", },
 122 { SDP_SERVICE_CLASS_VIDEO_CONFERENCING, "Video Conferencing", },
 123 { SDP_SERVICE_CLASS_INTERCOM, "Intercom", },
 124 { SDP_SERVICE_CLASS_FAX, "Fax", },
 125 { SDP_SERVICE_CLASS_HEADSET_AUDIO_GATEWAY, "Headset Audio Gateway", },
 126 { SDP_SERVICE_CLASS_WAP, "WAP", },
 127 { SDP_SERVICE_CLASS_WAP_CLIENT, "WAP Client", },
 128 { SDP_SERVICE_CLASS_PANU, "PANU", },
 129 { SDP_SERVICE_CLASS_NAP, "Network Access Point", },
 130 { SDP_SERVICE_CLASS_GN, "GN", },
 131 { SDP_SERVICE_CLASS_DIRECT_PRINTING, "Direct Printing", },
 132 { SDP_SERVICE_CLASS_REFERENCE_PRINTING, "Reference Printing", },
 133 { SDP_SERVICE_CLASS_IMAGING, "Imaging", },
 134 { SDP_SERVICE_CLASS_IMAGING_RESPONDER, "Imaging Responder", },
 135 { SDP_SERVICE_CLASS_IMAGING_AUTOMATIC_ARCHIVE, "Imaging Automatic Archive", },
 136 { SDP_SERVICE_CLASS_IMAGING_REFERENCED_OBJECTS, "Imaging Referenced Objects", },
 137 { SDP_SERVICE_CLASS_HANDSFREE, "Handsfree", },
 138 { SDP_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, "Handsfree Audio Gateway", },
 139 { SDP_SERVICE_CLASS_DIRECT_PRINTING_REFERENCE_OBJECTS, "Direct Printing Reference Objects", },
 140 { SDP_SERVICE_CLASS_REFLECTED_UI, "Reflected UI", },
 141 { SDP_SERVICE_CLASS_BASIC_PRINTING, "Basic Printing", },
 142 { SDP_SERVICE_CLASS_PRINTING_STATUS, "Printing Status", },
 143 { SDP_SERVICE_CLASS_HUMAN_INTERFACE_DEVICE, "Human Interface Device", },
 144 { SDP_SERVICE_CLASS_HARDCOPY_CABLE_REPLACEMENT, "Hardcopy Cable Replacement", },
 145 { SDP_SERVICE_CLASS_HCR_PRINT, "HCR Print", },
 146 { SDP_SERVICE_CLASS_HCR_SCAN, "HCR Scan", },
 147 { SDP_SERVICE_CLASS_COMMON_ISDN_ACCESS, "Common ISDN Access", },
 148 { SDP_SERVICE_CLASS_VIDEO_CONFERENCING_GW, "Video Conferencing Gateway", },
 149 { SDP_SERVICE_CLASS_UDI_MT, "UDI MT", },
 150 { SDP_SERVICE_CLASS_UDI_TA, "UDI TA", },
 151 { SDP_SERVICE_CLASS_AUDIO_VIDEO, "Audio/Video", },
 152 { SDP_SERVICE_CLASS_SIM_ACCESS, "SIM Access", },
 153 { SDP_SERVICE_CLASS_PNP_INFORMATION, "PNP Information", },
 154 { SDP_SERVICE_CLASS_GENERIC_NETWORKING, "Generic Networking", },
 155 { SDP_SERVICE_CLASS_GENERIC_FILE_TRANSFER, "Generic File Transfer", },
 156 { SDP_SERVICE_CLASS_GENERIC_AUDIO, "Generic Audio", },
 157 { SDP_SERVICE_CLASS_GENERIC_TELEPHONY, "Generic Telephony", },
 158 { SDP_SERVICE_CLASS_UPNP, "UPNP", },
 159 { SDP_SERVICE_CLASS_UPNP_IP, "UPNP IP", },
 160 { SDP_SERVICE_CLASS_ESDP_UPNP_IP_PAN, "ESDP UPNP IP PAN", },
 161 { SDP_SERVICE_CLASS_ESDP_UPNP_IP_LAP, "ESDP UPNP IP LAP", },
 162 { SDP_SERVICE_CLASS_ESDP_UPNP_L2CAP, "ESDP UPNP L2CAP", },
 163 { 0xffff, NULL, }
 164 };
 165
 166 static sdp_attr_desc_t  sdp_attrs_desc[] = {
 167 { SDP_ATTR_SERVICE_RECORD_HANDLE,
 168   "Record handle",
 169   },
 170 { SDP_ATTR_SERVICE_CLASS_ID_LIST,
 171   "Service Class ID list",
 172   },
 173 { SDP_ATTR_SERVICE_RECORD_STATE,
 174   "Service Record State",
 175   },
 176 { SDP_ATTR_SERVICE_ID,
 177   "Service ID",
 178   },
 179 { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
 180   "Protocol Descriptor List",
 181   },
 182 { SDP_ATTR_BROWSE_GROUP_LIST,
 183   "Browse Group List",
 184   },
 185 { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
 186   "Language Base Attribute ID List",
 187   },
 188 { SDP_ATTR_SERVICE_INFO_TIME_TO_LIVE,
 189   "Service Info Time-To-Live",
 190   },
 191 { SDP_ATTR_SERVICE_AVAILABILITY,
 192   "Service Availability",
 193   },
 194 { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
 195   "Bluetooh Profile Descriptor List",
 196   },
 197 { SDP_ATTR_DOCUMENTATION_URL,
 198   "Documentation URL",
 199   },
 200 { SDP_ATTR_CLIENT_EXECUTABLE_URL,
 201   "Client Executable URL",
 202   },
 203 { SDP_ATTR_ICON_URL,
 204   "Icon URL",
 205   },
 206 { SDP_ATTR_ADDITIONAL_PROTOCOL_DESCRIPTOR_LISTS,
 207   "Additional Protocol Descriptor Lists" },
 208 { SDP_ATTR_GROUP_ID,
 209 /*SDP_ATTR_IP_SUBNET,
 210   SDP_ATTR_VERSION_NUMBER_LIST*/
 211   "Group ID/IP Subnet/Version Number List",
 212   },
 213 { SDP_ATTR_SERVICE_DATABASE_STATE,
 214   "Service Database State",
 215   },
 216 { SDP_ATTR_SERVICE_VERSION,
 217   "Service Version",
 218   },
 219 { SDP_ATTR_EXTERNAL_NETWORK,
 220 /*SDP_ATTR_NETWORK,
 221   SDP_ATTR_SUPPORTED_DATA_STORES_LIST*/
 222   "External Network/Network/Supported Data Stores List",
 223   },
 224 { SDP_ATTR_FAX_CLASS1_SUPPORT,
 225 /*SDP_ATTR_REMOTE_AUDIO_VOLUME_CONTROL*/
 226   "Fax Class1 Support/Remote Audio Volume Control",
 227   },
 228 { SDP_ATTR_FAX_CLASS20_SUPPORT,
 229 /*SDP_ATTR_SUPPORTED_FORMATS_LIST*/
 230   "Fax Class20 Support/Supported Formats List",
 231   },
 232 { SDP_ATTR_FAX_CLASS2_SUPPORT,
 233   "Fax Class2 Support",
 234   },
 235 { SDP_ATTR_AUDIO_FEEDBACK_SUPPORT,
 236   "Audio Feedback Support",
 237   },
 238 { SDP_ATTR_NETWORK_ADDRESS,
 239   "Network Address",
 240   },
 241 { SDP_ATTR_WAP_GATEWAY,
 242   "WAP Gateway",
 243   },
 244 { SDP_ATTR_HOME_PAGE_URL,
 245   "Home Page URL",
 246   },
 247 { SDP_ATTR_WAP_STACK_TYPE,
 248   "WAP Stack Type",
 249   },
 250 { SDP_ATTR_SECURITY_DESCRIPTION,
 251   "Security Description",
 252   },
 253 { SDP_ATTR_NET_ACCESS_TYPE,
 254   "Net Access Type",
 255   },
 256 { SDP_ATTR_MAX_NET_ACCESS_RATE,
 257   "Max Net Access Rate",
 258   },
 259 { SDP_ATTR_IPV4_SUBNET,
 260   "IPv4 Subnet",
 261   },
 262 { SDP_ATTR_IPV6_SUBNET,
 263   "IPv6 Subnet",
 264   },
 265 { SDP_ATTR_SUPPORTED_CAPABALITIES,
 266   "Supported Capabalities",
 267   },
 268 { SDP_ATTR_SUPPORTED_FEATURES,
 269   "Supported Features",
 270   },
 271 { SDP_ATTR_SUPPORTED_FUNCTIONS,
 272   "Supported Functions",
 273   },
 274 { SDP_ATTR_TOTAL_IMAGING_DATA_CAPACITY,
 275   "Total Imaging Data Capacity",
 276   },
 277 { 0xffff, NULL, }
 278 };
 279
 280 char const *
 281 sdp_attr2desc(uint16_t attr)
 282 {
 283         sdp_attr_desc_p a = sdp_attrs_desc;
 284
 285         for (; a->desc != NULL; a++)
 286                 if (attr == a->attr)
 287                         break;
 288
 289         return ((a->desc != NULL)? a->desc : "Unknown");
 290 }
 291
 292 char const *
 293 sdp_uuid2desc(uint16_t uuid)
 294 {
 295         sdp_attr_desc_p a = sdp_uuids_desc;
 296
 297         for (; a->desc != NULL; a++)
 298                 if (uuid == a->attr)
 299                         break;
 300
 301         return ((a->desc != NULL)? a->desc : "Unknown");
 302 }
 303
 304 void
 305 sdp_print(uint32_t level, uint8_t *start, uint8_t const *end)
 306 {
 307         union {
 308                 int8_t          int8;
 309                 int16_t         int16;
 310                 int32_t         int32;
 311                 int64_t         int64;
 312                 int128_t        int128;
 313                 uint8_t         uint8;
 314                 uint16_t        uint16;
 315                 uint32_t        uint32;
 316                 uint64_t        uint64;
 317         }                       value;
 318         uint8_t                 type;
 319         uint32_t                i;
 320
 321         if (start == NULL || end == NULL)
 322                 return;
 323
 324         while (start < end) {
 325                 for (i = 0; i < level; i++)
 326                         printf("\t");
 327
 328                 SDP_GET8(type, start);
 329
 330                 switch (type) {
 331                 case SDP_DATA_NIL:
 332                         printf("nil\n");
 333                         break;
 334
 335                 case SDP_DATA_UINT8:
 336                         SDP_GET8(value.uint8, start);
 337                         printf("uint8 %u\n", value.uint8);
 338                         break;
 339                 case SDP_DATA_UINT16:
 340                         SDP_GET16(value.uint16, start);
 341                         printf("uint16 %u\n", value.uint16);
 342                         break;
 343                 case SDP_DATA_UINT32:
 344                         SDP_GET32(value.uint32, start);
 345                         printf("uint32 %u\n", value.uint32);
 346                         break;
 347                 case SDP_DATA_UINT64:
 348                         SDP_GET64(value.uint64, start);
 349                         printf("uint64 %ju\n", value.uint64);
 350                         break;
 351
 352                 case SDP_DATA_UINT128:
 353                 case SDP_DATA_INT128:
 354                         SDP_GET128(&value.int128, start);
 355                         printf("u/int128 0x"
 356                                 "%2.2x%2.2x%2.2x%2.2x"
 357                                 "%2.2x%2.2x%2.2x%2.2x"
 358                                 "%2.2x%2.2x%2.2x%2.2x"
 359                                 "%2.2x%2.2x%2.2x%2.2x\n",
 360                                 value.int128.b[ 0], value.int128.b[ 1],
 361                                 value.int128.b[ 2], value.int128.b[ 3],
 362                                 value.int128.b[ 4], value.int128.b[ 5],
 363                                 value.int128.b[ 6], value.int128.b[ 7],
 364                                 value.int128.b[ 8], value.int128.b[ 9],
 365                                 value.int128.b[10], value.int128.b[11],
 366                                 value.int128.b[12], value.int128.b[13],
 367                                 value.int128.b[14], value.int128.b[15]);
 368                         break;
 369
 370                 case SDP_DATA_UUID128:
 371                         SDP_GET_UUID128(&value.int128, start);
 372                         printf("uuid128 0x"
 373                                 "%2.2x%2.2x%2.2x%2.2x-"
 374                                 "%2.2x%2.2x-"
 375                                 "%2.2x%2.2x-"
 376                                 "%2.2x%2.2x-"
 377                                 "%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\n",
 378                                 value.int128.b[ 0], value.int128.b[ 1],
 379                                 value.int128.b[ 2], value.int128.b[ 3],
 380                                 value.int128.b[ 4], value.int128.b[ 5],
 381                                 value.int128.b[ 6], value.int128.b[ 7],
 382                                 value.int128.b[ 8], value.int128.b[ 9],
 383                                 value.int128.b[10], value.int128.b[11],
 384                                 value.int128.b[12], value.int128.b[13],
 385                                 value.int128.b[14], value.int128.b[15]);
 386                         break;
 387
 388                 case SDP_DATA_INT8:
 389                         SDP_GET8(value.int8, start);
 390                         printf("int8 %d\n", value.int8);
 391                         break;
 392                 case SDP_DATA_INT16:
 393                         SDP_GET16(value.int16, start);
 394                         printf("int16 %d\n", value.int16);
 395                         break;
 396                 case SDP_DATA_INT32:
 397                         SDP_GET32(value.int32, start);
 398                         printf("int32 %d\n", value.int32);
 399                         break;
 400                 case SDP_DATA_INT64:
 401                         SDP_GET64(value.int64, start);
 402                         printf("int64 %ju\n", value.int64);
 403                         break;
 404
 405                 case SDP_DATA_UUID16:
 406                         SDP_GET16(value.uint16, start);
 407                         printf("uuid16 %#4.4x - %s\n", value.uint16,
 408                                 sdp_uuid2desc(value.uint16));
 409                         break;
 410                 case SDP_DATA_UUID32:
 411                         SDP_GET32(value.uint32, start);
 412                         printf("uuid32 %#8.8x\n", value.uint32);
 413                         break;
 414
 415                 case SDP_DATA_STR8:
 416                         SDP_GET8(value.uint8, start);
 417                         printf("str8 %*.*s\n", value.uint8, value.uint8, start);
 418                         start += value.uint8;
 419                         break;
 420                 case SDP_DATA_STR16:
 421                         SDP_GET16(value.uint16, start);
 422                         printf("str16 %*.*s\n", value.uint16, value.uint16, start);
 423                         start += value.uint16;
 424                         break;
 425                 case SDP_DATA_STR32:
 426                         SDP_GET32(value.uint32, start);
 427                         printf("str32 %*.*s\n", value.uint32, value.uint32, start);
 428                         start += value.uint32;
 429                         break;
 430
 431                 case SDP_DATA_BOOL:
 432                         SDP_GET8(value.uint8, start);
 433                         printf("bool %d\n", value.uint8);
 434                         break;
 435
 436                 case SDP_DATA_SEQ8:
 437                         SDP_GET8(value.uint8, start);
 438                         printf("seq8 %d\n", value.uint8);
 439                         sdp_print(level + 1, start, start + value.uint8);
 440                         start += value.uint8;
 441                         break;
 442                 case SDP_DATA_SEQ16:
 443                         SDP_GET16(value.uint16, start);
 444                         printf("seq16 %d\n", value.uint16);
 445                         sdp_print(level + 1, start, start + value.uint16);
 446                         start += value.uint16;
 447                         break;
 448                 case SDP_DATA_SEQ32:
 449                         SDP_GET32(value.uint32, start);
 450                         printf("seq32 %d\n", value.uint32);
 451                         sdp_print(level + 1, start, start + value.uint32);
 452                         start += value.uint32;
 453                         break;
 454
 455                 case SDP_DATA_ALT8:
 456                         SDP_GET8(value.uint8, start);
 457                         printf("alt8 %d\n", value.uint8);
 458                         sdp_print(level + 1, start, start + value.uint8);
 459                         start += value.uint8;
 460                         break;
 461                 case SDP_DATA_ALT16:
 462                         SDP_GET16(value.uint16, start);
 463                         printf("alt16 %d\n", value.uint16);
 464                         sdp_print(level + 1, start, start + value.uint16);
 465                         start += value.uint16;
 466                         break;
 467                 case SDP_DATA_ALT32:
 468                         SDP_GET32(value.uint32, start);
 469                         printf("alt32 %d\n", value.uint32);
 470                         sdp_print(level + 1, start, start + value.uint32);
 471                         start += value.uint32;
 472                         break;
 473
 474                 case SDP_DATA_URL8:
 475                         SDP_GET8(value.uint8, start);
 476                         printf("url8 %*.*s\n", value.uint8, value.uint8, start);
 477                         start += value.uint8;
 478                         break;
 479                 case SDP_DATA_URL16:
 480                         SDP_GET16(value.uint16, start);
 481                         printf("url16 %*.*s\n", value.uint16, value.uint16, start);
 482                         start += value.uint16;
 483                         break;
 484                 case SDP_DATA_URL32:
 485                         SDP_GET32(value.uint32, start);
 486                         printf("url32 %*.*s\n", value.uint32, value.uint32, start);
 487                         start += value.uint32;
 488                         break;
 489
 490                 default:
 491                         printf("unknown data type: %#02x\n", *start ++);
 492                         break;
 493                 }
 494         }
 495 }