extras/cdrom_id/cdrom_id.c

   1 /*
   2  * cdrom_id - optical drive and media information prober
   3  *
   4  * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef _GNU_SOURCE
  21 #define _GNU_SOURCE 1
  22 #endif
  23
  24 #include <stdio.h>
  25 #include <stddef.h>
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28 #include <string.h>
  29 #include <limits.h>
  30 #include <fcntl.h>
  31 #include <errno.h>
  32 #include <getopt.h>
  33 #include <scsi/sg.h>
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36 #include <sys/time.h>
  37 #include <sys/ioctl.h>
  38 #include <linux/cdrom.h>
  39
  40 #include "libudev.h"
  41 #include "libudev-private.h"
  42
  43 static int debug;
  44
  45 static void log_fn(struct udev *udev, int priority,
  46                    const char *file, int line, const char *fn,
  47                    const char *format, va_list args)
  48 {
  49         if (debug) {
  50                 fprintf(stderr, "%s: ", fn);
  51                 vfprintf(stderr, format, args);
  52         } else {
  53                 vsyslog(priority, format, args);
  54         }
  55 }
  56
  57 /* device info */
  58 static unsigned int cd_cd_rom;
  59 static unsigned int cd_cd_r;
  60 static unsigned int cd_cd_rw;
  61 static unsigned int cd_dvd_rom;
  62 static unsigned int cd_dvd_r;
  63 static unsigned int cd_dvd_rw;
  64 static unsigned int cd_dvd_ram;
  65 static unsigned int cd_dvd_plus_r;
  66 static unsigned int cd_dvd_plus_rw;
  67 static unsigned int cd_dvd_plus_r_dl;
  68 static unsigned int cd_dvd_plus_rw_dl;
  69 static unsigned int cd_bd;
  70 static unsigned int cd_bd_r;
  71 static unsigned int cd_bd_re;
  72 static unsigned int cd_hddvd;
  73 static unsigned int cd_hddvd_r;
  74 static unsigned int cd_hddvd_rw;
  75 static unsigned int cd_mo;
  76 static unsigned int cd_mrw;
  77 static unsigned int cd_mrw_w;
  78
  79 /* media info */
  80 static unsigned int cd_media;
  81 static unsigned int cd_media_cd_rom;
  82 static unsigned int cd_media_cd_r;
  83 static unsigned int cd_media_cd_rw;
  84 static unsigned int cd_media_dvd_rom;
  85 static unsigned int cd_media_dvd_r;
  86 static unsigned int cd_media_dvd_rw;
  87 static unsigned int cd_media_dvd_ram;
  88 static unsigned int cd_media_dvd_plus_r;
  89 static unsigned int cd_media_dvd_plus_rw;
  90 static unsigned int cd_media_dvd_plus_r_dl;
  91 static unsigned int cd_media_dvd_plus_rw_dl;
  92 static unsigned int cd_media_bd;
  93 static unsigned int cd_media_bd_r;
  94 static unsigned int cd_media_bd_re;
  95 static unsigned int cd_media_hddvd;
  96 static unsigned int cd_media_hddvd_r;
  97 static unsigned int cd_media_hddvd_rw;
  98 static unsigned int cd_media_mo;
  99 static unsigned int cd_media_mrw;
 100 static unsigned int cd_media_mrw_w;
 101
 102 static const char *cd_media_state;
 103 static unsigned int cd_media_session_next;
 104 static unsigned int cd_media_session_count;
 105 static unsigned int cd_media_track_count;
 106 static unsigned int cd_media_track_count_data;
 107 static unsigned int cd_media_track_count_audio;
 108 static unsigned long long int cd_media_session_last_offset;
 109
 110 #define ERRCODE(s)      ((((s)[2] & 0x0F) << 16) | ((s)[12] << 8) | ((s)[13]))
 111 #define SK(errcode)     (((errcode) >> 16) & 0xF)
 112 #define ASC(errcode)    (((errcode) >> 8) & 0xFF)
 113 #define ASCQ(errcode)   ((errcode) & 0xFF)
 114
 115 static int is_mounted(const char *device)
 116 {
 117         struct stat statbuf;
 118         FILE *fp;
 119         int maj, min;
 120         int mounted = 0;
 121
 122         if (stat(device, &statbuf) < 0)
 123                 return -ENODEV;
 124
 125         fp = fopen("/proc/self/mountinfo", "r");
 126         if (fp == NULL)
 127                 return -ENOSYS;
 128         while (fscanf(fp, "%*s %*s %i:%i %*[^\n]", &maj, &min) == 2) {
 129                 if (makedev(maj, min) == statbuf.st_rdev) {
 130                         mounted = 1;
 131                         break;
 132                 }
 133         }
 134         fclose(fp);
 135         return mounted;
 136 }
 137
 138 static void info_scsi_cmd_err(struct udev *udev, char *cmd, int err)
 139 {
 140         if (err == -1) {
 141                 info(udev, "%s failed\n", cmd);
 142                 return;
 143         }
 144         info(udev, "%s failed with SK=%Xh/ASC=%02Xh/ACQ=%02Xh\n", cmd, SK(err), ASC(err), ASCQ(err));
 145 }
 146
 147 struct scsi_cmd {
 148         struct cdrom_generic_command cgc;
 149         union {
 150                 struct request_sense s;
 151                 unsigned char u[18];
 152         } _sense;
 153         struct sg_io_hdr sg_io;
 154 };
 155
 156 static void scsi_cmd_set(struct udev *udev, struct scsi_cmd *cmd, size_t i, int arg)
 157 {
 158         if (i == 0) {
 159                 memset(cmd, 0x00, sizeof(struct scsi_cmd));
 160                 cmd->cgc.quiet = 1;
 161                 cmd->cgc.sense = &cmd->_sense.s;
 162                 memset(&cmd->sg_io, 0, sizeof(cmd->sg_io));
 163                 cmd->sg_io.interface_id = 'S';
 164                 cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
 165                 cmd->sg_io.cmdp = cmd->cgc.cmd;
 166                 cmd->sg_io.sbp = cmd->_sense.u;
 167                 cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
 168         }
 169         cmd->sg_io.cmd_len = i + 1;
 170         cmd->cgc.cmd[i] = arg;
 171 }
 172
 173 #define CHECK_CONDITION 0x01
 174
 175 static int scsi_cmd_run(struct udev *udev, struct scsi_cmd *cmd, int fd, unsigned char *buf, size_t bufsize)
 176 {
 177         int ret = 0;
 178
 179         cmd->sg_io.dxferp = buf;
 180         cmd->sg_io.dxfer_len = bufsize;
 181         cmd->sg_io.dxfer_direction = SG_DXFER_FROM_DEV;
 182         if (ioctl(fd, SG_IO, &cmd->sg_io))
 183                 return -1;
 184
 185         if ((cmd->sg_io.info & SG_INFO_OK_MASK) != SG_INFO_OK) {
 186                 errno = EIO;
 187                 ret = -1;
 188                 if (cmd->sg_io.masked_status & CHECK_CONDITION) {
 189                         ret = ERRCODE(cmd->_sense.u);
 190                         if (ret == 0)
 191                                 ret = -1;
 192                 }
 193         }
 194         return ret;
 195 }
 196
 197 static int cd_capability_compat(struct udev *udev, int fd)
 198 {
 199         int capability;
 200
 201         capability = ioctl(fd, CDROM_GET_CAPABILITY, NULL);
 202         if (capability < 0) {
 203                 info(udev, "CDROM_GET_CAPABILITY failed\n");
 204                 return -1;
 205         }
 206
 207         if (capability & CDC_CD_R)
 208                 cd_cd_r = 1;
 209         if (capability & CDC_CD_RW)
 210                 cd_cd_rw = 1;
 211         if (capability & CDC_DVD)
 212                 cd_dvd_rom = 1;
 213         if (capability & CDC_DVD_R)
 214                 cd_dvd_r = 1;
 215         if (capability & CDC_DVD_RAM)
 216                 cd_dvd_ram = 1;
 217         if (capability & CDC_MRW)
 218                 cd_mrw = 1;
 219         if (capability & CDC_MRW_W)
 220                 cd_mrw_w = 1;
 221         return 0;
 222 }
 223
 224 static int cd_media_compat(struct udev *udev, int fd)
 225 {
 226         if (ioctl(fd, CDROM_DRIVE_STATUS, CDSL_CURRENT) != CDS_DISC_OK) {
 227                 info(udev, "CDROM_DRIVE_STATUS != CDS_DISC_OK\n");
 228                 return -1;
 229         }
 230         cd_media = 1;
 231         return 0;
 232 }
 233
 234 static int cd_inquiry(struct udev *udev, int fd) {
 235         struct scsi_cmd sc;
 236         unsigned char inq[128];
 237         int err;
 238
 239         scsi_cmd_set(udev, &sc, 0, 0x12);
 240         scsi_cmd_set(udev, &sc, 4, 36);
 241         scsi_cmd_set(udev, &sc, 5, 0);
 242         err = scsi_cmd_run(udev, &sc, fd, inq, 36);
 243         if ((err < 0)) {
 244                 info_scsi_cmd_err(udev, "INQUIRY", err);
 245                 return -1;
 246         }
 247
 248         if ((inq[0] & 0x1F) != 5) {
 249                 info(udev, "not an MMC unit\n");
 250                 return -1;
 251         }
 252
 253         info(udev, "INQUIRY: [%.8s][%.16s][%.4s]\n", inq + 8, inq + 16, inq + 32);
 254         return 0;
 255 }
 256
 257 static int cd_profiles(struct udev *udev, int fd)
 258 {
 259         struct scsi_cmd sc;
 260         unsigned char header[8];
 261         unsigned char profiles[512];
 262         unsigned int cur_profile;
 263         unsigned int len;
 264         unsigned int i;
 265         int err;
 266
 267         scsi_cmd_set(udev, &sc, 0, 0x46);
 268         scsi_cmd_set(udev, &sc, 1, 0);
 269         scsi_cmd_set(udev, &sc, 8, sizeof(header));
 270         scsi_cmd_set(udev, &sc, 9, 0);
 271         err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
 272         if ((err < 0)) {
 273                 info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
 274                 return -1;
 275         }
 276
 277         len = 4 + (header[0] << 24 | header[1] << 16 | header[2] << 8 | header[3]);
 278         info(udev, "GET CONFIGURATION: number of profiles %i\n", len);
 279         if (len > sizeof(profiles)) {
 280                 info(udev, "invalid number of profiles\n");
 281                 return -1;
 282         }
 283
 284         scsi_cmd_set(udev, &sc, 0, 0x46);
 285         scsi_cmd_set(udev, &sc, 1, 1);
 286         scsi_cmd_set(udev, &sc, 6, len >> 16);
 287         scsi_cmd_set(udev, &sc, 7, len >> 8);
 288         scsi_cmd_set(udev, &sc, 8, len);
 289         scsi_cmd_set(udev, &sc, 9, 0);
 290         err = scsi_cmd_run(udev, &sc, fd, profiles, len);
 291         if ((err < 0)) {
 292                 info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
 293                 return -1;
 294         }
 295
 296         /* device profiles */
 297         for (i = 12; i < profiles[11]; i += 4) {
 298                 unsigned int profile = (profiles[i] << 8 | profiles[i + 1]);
 299                 if (profile == 0)
 300                         continue;
 301                 info(udev, "profile 0x%02x\n", profile);
 302
 303                 switch (profile) {
 304                 case 0x03:
 305                 case 0x04:
 306                 case 0x05:
 307                         cd_mo = 1;
 308                 break;
 309                 case 0x10:
 310                         cd_dvd_rom = 1;
 311                         break;
 312                 case 0x12:
 313                         cd_dvd_ram = 1;
 314                         break;
 315                 case 0x13:
 316                 case 0x14:
 317                         cd_dvd_rw = 1;
 318                         break;
 319                 case 0x1B:
 320                         cd_dvd_plus_r = 1;
 321                         break;
 322                 case 0x1A:
 323                         cd_dvd_plus_rw = 1;
 324                         break;
 325                 case 0x2A:
 326                         cd_dvd_plus_rw_dl = 1;
 327                         break;
 328                 case 0x2B:
 329                         cd_dvd_plus_r_dl = 1;
 330                         break;
 331                 case 0x40:
 332                         cd_bd = 1;
 333                         break;
 334                 case 0x41:
 335                 case 0x42:
 336                         cd_bd_r = 1;
 337                         break;
 338                 case 0x43:
 339                         cd_bd_re = 1;
 340                         break;
 341                 case 0x50:
 342                         cd_hddvd = 1;
 343                         break;
 344                 case 0x51:
 345                         cd_hddvd_r = 1;
 346                         break;
 347                 case 0x52:
 348                         cd_hddvd_rw = 1;
 349                         break;
 350                 default:
 351                         break;
 352                 }
 353         }
 354
 355         /* current media profile */
 356         cur_profile = header[6] << 8 | header[7];
 357         info(udev, "current profile 0x%02x\n", cur_profile);
 358         if (cur_profile == 0) {
 359                 info(udev, "no current profile, assuming no media\n");
 360                 return -1;
 361         }
 362
 363         cd_media = 1;
 364
 365         switch (cur_profile) {
 366         case 0x03:
 367         case 0x04:
 368         case 0x05:
 369                 cd_media_mo = 1;
 370                 break;
 371         case 0x08:
 372                 cd_media_cd_rom = 1;
 373                 break;
 374         case 0x09:
 375                 cd_media_cd_r = 1;
 376                 break;
 377         case 0x0a:
 378                 cd_media_cd_rw = 1;
 379                 break;
 380         case 0x10:
 381                 cd_media_dvd_rom = 1;
 382                 break;
 383         case 0x11:
 384                 cd_media_dvd_r = 1;
 385                 break;
 386         case 0x12:
 387                 cd_media_dvd_ram = 1;
 388                 break;
 389         case 0x13:
 390         case 0x14:
 391                 cd_media_dvd_rw = 1;
 392                 break;
 393         case 0x1B:
 394                 cd_media_dvd_plus_r = 1;
 395                 break;
 396         case 0x1A:
 397                 cd_media_dvd_plus_rw = 1;
 398                 break;
 399         case 0x2A:
 400                 cd_media_dvd_plus_rw_dl = 1;
 401                 break;
 402         case 0x2B:
 403                 cd_media_dvd_plus_r_dl = 1;
 404                 break;
 405         case 0x40:
 406                 cd_media_bd = 1;
 407                 break;
 408         case 0x41:
 409         case 0x42:
 410                 cd_media_bd_r = 1;
 411                 break;
 412         case 0x43:
 413                 cd_media_bd_re = 1;
 414                 break;
 415         case 0x50:
 416                 cd_media_hddvd = 1;
 417                 break;
 418         case 0x51:
 419                 cd_media_hddvd_r = 1;
 420                 break;
 421         case 0x52:
 422                 cd_media_hddvd_rw = 1;
 423                 break;
 424         default:
 425                 break;
 426         }
 427         return 0;
 428 }
 429
 430 static int cd_media_info(struct udev *udev, int fd)
 431 {
 432         struct scsi_cmd sc;
 433         unsigned char header[32];
 434         static const char *media_status[] = {
 435                 "blank",
 436                 "appendable",
 437                 "complete",
 438                 "other"
 439         };
 440         int err;
 441
 442         scsi_cmd_set(udev, &sc, 0, 0x51);
 443         scsi_cmd_set(udev, &sc, 8, sizeof(header));
 444         scsi_cmd_set(udev, &sc, 9, 0);
 445         err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
 446         if ((err < 0)) {
 447                 info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
 448                 return -1;
 449         };
 450
 451         info(udev, "disk type %02x\n", header[8]);
 452
 453         /* exclude plain CDROM, some fake cdroms return 0 for "blank" media here */
 454         if (!cd_media_cd_rom && (header[2] & 3) < 4)
 455                 cd_media_state = media_status[header[2] & 3];
 456
 457         if ((header[2] & 3) != 2)
 458                 cd_media_session_next = header[10] << 8 | header[5];
 459         cd_media_session_count = header[9] << 8 | header[4];
 460         cd_media_track_count = header[11] << 8 | header[6];
 461
 462         return 0;
 463 }
 464
 465 static int cd_media_toc(struct udev *udev, int fd)
 466 {
 467         struct scsi_cmd sc;
 468         unsigned char header[12];
 469         unsigned char toc[2048];
 470         unsigned int len, i;
 471         unsigned char *p;
 472         int err;
 473
 474         scsi_cmd_set(udev, &sc, 0, 0x43);
 475         scsi_cmd_set(udev, &sc, 6, 1);
 476         scsi_cmd_set(udev, &sc, 8, sizeof(header));
 477         scsi_cmd_set(udev, &sc, 9, 0);
 478         err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
 479         if ((err < 0)) {
 480                 info_scsi_cmd_err(udev, "READ TOC", err);
 481                 return -1;
 482         }
 483
 484         len = (header[0] << 8 | header[1]) + 2;
 485         info(udev, "READ TOC: len: %d\n", len);
 486         if (len > sizeof(toc))
 487                 return -1;
 488         if (len < 2)
 489                 return -1;
 490
 491         /* empty media has no tracks */
 492         if (len < 8)
 493                 return 0;
 494
 495         scsi_cmd_set(udev, &sc, 0, 0x43);
 496         scsi_cmd_set(udev, &sc, 6, header[2]); /* First Track/Session Number */
 497         scsi_cmd_set(udev, &sc, 7, len >> 8);
 498         scsi_cmd_set(udev, &sc, 8, len);
 499         scsi_cmd_set(udev, &sc, 9, 0);
 500         err = scsi_cmd_run(udev, &sc, fd, toc, len);
 501         if ((err < 0)) {
 502                 info_scsi_cmd_err(udev, "READ TOC (tracks)", err);
 503                 return -1;
 504         }
 505
 506         for (p = toc+4, i = 4; i < len-8; i += 8, p += 8) {
 507                 unsigned int block;
 508                 unsigned int is_data_track;
 509
 510                 is_data_track = (p[1] & 0x04) != 0;
 511
 512                 block = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
 513                 info(udev, "track=%u info=0x%x(%s) start_block=%u\n",
 514                      p[2], p[1] & 0x0f, is_data_track ? "data":"audio", block);
 515
 516                 if (is_data_track)
 517                         cd_media_track_count_data++;
 518                 else
 519                         cd_media_track_count_audio++;
 520         }
 521
 522         scsi_cmd_set(udev, &sc, 0, 0x43);
 523         scsi_cmd_set(udev, &sc, 2, 1); /* Session Info */
 524         scsi_cmd_set(udev, &sc, 8, 12);
 525         scsi_cmd_set(udev, &sc, 9, 0);
 526         err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
 527         if ((err < 0)) {
 528                 info_scsi_cmd_err(udev, "READ TOC (multi session)", err);
 529                 return -1;
 530         }
 531         len = header[4+4] << 24 | header[4+5] << 16 | header[4+6] << 8 | header[4+7];
 532         info(udev, "last track %u starts at block %u\n", header[4+2], len);
 533         cd_media_session_last_offset = (unsigned long long int)len * 2048;
 534         return 0;
 535 }
 536
 537 int main(int argc, char *argv[])
 538 {
 539         struct udev *udev;
 540         static const struct option options[] = {
 541                 { "export", no_argument, NULL, 'x' },
 542                 { "debug", no_argument, NULL, 'd' },
 543                 { "help", no_argument, NULL, 'h' },
 544                 {}
 545         };
 546         const char *node = NULL;
 547         int export = 0;
 548         int fd = -1;
 549         int rc = 0;
 550
 551         udev = udev_new();
 552         if (udev == NULL)
 553                 goto exit;
 554
 555         udev_log_init("cdrom_id");
 556         udev_set_log_fn(udev, log_fn);
 557
 558         while (1) {
 559                 int option;
 560
 561                 option = getopt_long(argc, argv, "dxh", options, NULL);
 562                 if (option == -1)
 563                         break;
 564
 565                 switch (option) {
 566                 case 'd':
 567                         debug = 1;
 568                         if (udev_get_log_priority(udev) < LOG_INFO)
 569                                 udev_set_log_priority(udev, LOG_INFO);
 570                         break;
 571                 case 'x':
 572                         export = 1;
 573                         break;
 574                 case 'h':
 575                         printf("Usage: cdrom_id [options] <device>\n"
 576                                "  --export        export key/value pairs\n"
 577                                "  --debug         debug to stderr\n"
 578                                "  --help          print this help text\n\n");
 579                         goto exit;
 580                 default:
 581                         rc = 1;
 582                         goto exit;
 583                 }
 584         }
 585
 586         node = argv[optind];
 587         if (!node) {
 588                 err(udev, "no device\n");
 589                 fprintf(stderr, "no device\n");
 590                 rc = 1;
 591                 goto exit;
 592         }
 593
 594         fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL));
 595         if (fd < 0) {
 596                 info(udev, "unable to open '%s'\n", node);
 597                 fprintf(stderr, "unable to open '%s'\n", node);
 598                 rc = 1;
 599                 goto exit;
 600         }
 601         info(udev, "probing: '%s'\n", node);
 602
 603         /* same data as original cdrom_id */
 604         if (cd_capability_compat(udev, fd) < 0) {
 605                 rc = 1;
 606                 goto exit;
 607         }
 608
 609         /* check for media - don't bail if there's no media as we still need to
 610          * to read profiles */
 611         cd_media_compat(udev, fd);
 612
 613         /* check if drive talks MMC */
 614         if (cd_inquiry(udev, fd) < 0)
 615                 goto print;
 616
 617         /* read drive and possibly current profile */
 618         if (cd_profiles(udev, fd) < 0)
 619                 goto print;
 620
 621         /* get session/track info */
 622         if (cd_media_toc(udev, fd) < 0)
 623                 goto print;
 624
 625         /* get writable media state */
 626         if (cd_media_info(udev, fd) < 0)
 627                 goto print;
 628
 629 print:
 630         printf("ID_CDROM=1\n");
 631         if (cd_cd_rom)
 632                 printf("ID_CDROM_CD=1\n");
 633         if (cd_cd_r)
 634                 printf("ID_CDROM_CD_R=1\n");
 635         if (cd_cd_rw)
 636                 printf("ID_CDROM_CD_RW=1\n");
 637         if (cd_dvd_rom)
 638                 printf("ID_CDROM_DVD=1\n");
 639         if (cd_dvd_r)
 640                 printf("ID_CDROM_DVD_R=1\n");
 641         if (cd_dvd_rw)
 642                 printf("ID_CDROM_DVD_RW=1\n");
 643         if (cd_dvd_ram)
 644                 printf("ID_CDROM_DVD_RAM=1\n");
 645         if (cd_dvd_plus_r)
 646                 printf("ID_CDROM_DVD_PLUS_R=1\n");
 647         if (cd_dvd_plus_rw)
 648                 printf("ID_CDROM_DVD_PLUS_RW=1\n");
 649         if (cd_dvd_plus_r_dl)
 650                 printf("ID_CDROM_DVD_PLUS_R_DL=1\n");
 651         if (cd_dvd_plus_rw_dl)
 652                 printf("ID_CDROM_DVD_PLUS_RW_DL=1\n");
 653         if (cd_bd)
 654                 printf("ID_CDROM_BD=1\n");
 655         if (cd_bd_r)
 656                 printf("ID_CDROM_BD_R=1\n");
 657         if (cd_bd_re)
 658                 printf("ID_CDROM_BD_RE=1\n");
 659         if (cd_hddvd)
 660                 printf("ID_CDROM_HDDVD=1\n");
 661         if (cd_hddvd_r)
 662                 printf("ID_CDROM_HDDVD_R=1\n");
 663         if (cd_hddvd_rw)
 664                 printf("ID_CDROM_HDDVD_RW=1\n");
 665         if (cd_mo)
 666                 printf("ID_CDROM_MO=1\n");
 667         if (cd_mrw)
 668                 printf("ID_CDROM_MRW=1\n");
 669         if (cd_mrw_w)
 670                 printf("ID_CDROM_MRW_W=1\n");
 671
 672         if (cd_media)
 673                 printf("ID_CDROM_MEDIA=1\n");
 674         if (cd_media_mo)
 675                 printf("ID_CDROM_MEDIA_MO=1\n");
 676         if (cd_media_mrw)
 677                 printf("ID_CDROM_MEDIA_MRW=1\n");
 678         if (cd_media_mrw_w)
 679                 printf("ID_CDROM_MEDIA_MRW_W=1\n");
 680         if (cd_media_cd_rom)
 681                 printf("ID_CDROM_MEDIA_CD=1\n");
 682         if (cd_media_cd_r)
 683                 printf("ID_CDROM_MEDIA_CD_R=1\n");
 684         if (cd_media_cd_rw)
 685                 printf("ID_CDROM_MEDIA_CD_RW=1\n");
 686         if (cd_media_dvd_rom)
 687                 printf("ID_CDROM_MEDIA_DVD=1\n");
 688         if (cd_media_dvd_r)
 689                 printf("ID_CDROM_MEDIA_DVD_R=1\n");
 690         if (cd_media_dvd_ram)
 691                 printf("ID_CDROM_MEDIA_DVD_RAM=1\n");
 692         if (cd_media_dvd_rw)
 693                 printf("ID_CDROM_MEDIA_DVD_RW=1\n");
 694         if (cd_media_dvd_plus_r)
 695                 printf("ID_CDROM_MEDIA_DVD_PLUS_R=1\n");
 696         if (cd_media_dvd_plus_rw)
 697                 printf("ID_CDROM_MEDIA_DVD_PLUS_RW=1\n");
 698         if (cd_media_dvd_plus_rw_dl)
 699                 printf("ID_CDROM_MEDIA_DVD_PLUS_RW_DL=1\n");
 700         if (cd_media_dvd_plus_r_dl)
 701                 printf("ID_CDROM_MEDIA_DVD_PLUS_R_DL=1\n");
 702         if (cd_media_bd)
 703                 printf("ID_CDROM_MEDIA_BD=1\n");
 704         if (cd_media_bd_r)
 705                 printf("ID_CDROM_MEDIA_BD_R=1\n");
 706         if (cd_media_bd_re)
 707                 printf("ID_CDROM_MEDIA_BD_RE=1\n");
 708         if (cd_media_hddvd)
 709                 printf("ID_CDROM_MEDIA_HDDVD=1\n");
 710         if (cd_media_hddvd_r)
 711                 printf("ID_CDROM_MEDIA_HDDVD_R=1\n");
 712         if (cd_media_hddvd_rw)
 713                 printf("ID_CDROM_MEDIA_HDDVD_RW=1\n");
 714
 715         if (cd_media_state != NULL)
 716                 printf("ID_CDROM_MEDIA_STATE=%s\n", cd_media_state);
 717         if (cd_media_session_next > 0)
 718                 printf("ID_CDROM_MEDIA_SESSION_NEXT=%d\n", cd_media_session_next);
 719         if (cd_media_session_count > 0)
 720                 printf("ID_CDROM_MEDIA_SESSION_COUNT=%d\n", cd_media_session_count);
 721         if (cd_media_track_count > 0)
 722                 printf("ID_CDROM_MEDIA_TRACK_COUNT=%d\n", cd_media_track_count);
 723         if (cd_media_track_count_audio > 0)
 724                 printf("ID_CDROM_MEDIA_TRACK_COUNT_AUDIO=%d\n", cd_media_track_count_audio);
 725         if (cd_media_track_count_data > 0)
 726                 printf("ID_CDROM_MEDIA_TRACK_COUNT_DATA=%d\n", cd_media_track_count_data);
 727         if (cd_media_session_last_offset > 0)
 728                 printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
 729 exit:
 730         if (fd >= 0)
 731                 close(fd);
 732         udev_unref(udev);
 733         udev_log_close();
 734         return rc;
 735 }
 736