Exemple #1
0
long 
cdio_cddap_read(cdrom_drive_t *d, void *buffer, lsn_t beginsector, 
		long sectors)
{
  if (d->opened) {
    if (sectors>0) {
      sectors=d->read_audio(d, buffer, beginsector, sectors);

      if (sectors > 0) {
	/* byteswap? */
	if ( d->bigendianp == -1 ) /* not determined yet */
	  d->bigendianp = data_bigendianp(d);

	if ( d->b_swap_bytes && d->bigendianp != bigendianp() ) {
	  int i;
	  uint16_t *p=(uint16_t *)buffer;
	  long els=sectors*CDIO_CD_FRAMESIZE_RAW/2;
	  
	  /* Note: Something perhaps in the original cdparanoia code might
	     cause the code to access outside of the allocated range of
	     buffer. This comment is just to serve as a marker for
	     the loop where the data got clobbered. I don't think this
	     code however is wrong. See the comment in i_read_c_block 
	     of paranioa.c 
	  */
	  for(i=0;i<els;i++)
	    p[i]=UINT16_SWAP_LE_BE_C(p[i]);
	}
      }
    }
    return(sectors);
  }
  
  cderror(d,"400: Device not open\n");
  return(-400);
}
int
main(int argc,char *argv[])
{
  int   toc_bias             =  0;
  int   force_cdrom_endian   = -1;
  int   output_type          =  1; /* 0=raw, 1=wav, 2=aifc */
  int   output_endian        =  0; /* -1=host, 0=little, 1=big */
  int   query_only           =  0;
  int   batch                =  0;
  int   run_cache_test       =  0;
  long int force_cdrom_overlap  = -1;
  long int force_cdrom_sectors  = -1;
  long int force_cdrom_speed    =  0;
  long int force_overread       =  0;
  long int sample_offset        =  0;
  long int test_flags           =  0;
  long int toc_offset           =  0;
  long int max_retries          = 20;

  char *logfile_name=NULL;
  char *reportfile_name=NULL;

  /* full paranoia, but allow skipping */
  int paranoia_mode=PARANOIA_MODE_FULL^PARANOIA_MODE_NEVERSKIP;

  int out;

  int c,long_option_index;

  atexit(cleanup);

  while((c=getopt_long(argc,argv,optstring,options,&long_option_index))!=EOF){
    switch(c){
    case 'a':
      output_type=2;
      output_endian=1;
      break;
    case 'B':
      batch=1;
      break;
    case 'c':
      force_cdrom_endian=0;
      break;
    case 'C':
      force_cdrom_endian=1;
      break;
    case 'e':
      callscript=1;
      fprintf(stderr,
              "Sending all callback output to stderr for wrapper script\n");
      break;
    case 'f':
      output_type=3;
      output_endian=1;
      break;
    case 'F':
      paranoia_mode&=~(PARANOIA_MODE_FRAGMENT);
      break;
    case 'g':
    case 'k':
    case 'd':
      if (force_cdrom_device) {
        fprintf(stderr,
                "Multiple cdrom devices given. Previous device %s ignored\n",
                force_cdrom_device);
        free(force_cdrom_device);
      }
      force_cdrom_device=strdup(optarg);
      break;
    case 'h':
      usage(stdout);
      exit(0);
    case 'l':
      if(logfile_name)free(logfile_name);
      logfile_name=NULL;
      if(optarg)
	logfile_name=strdup(optarg);
      logfile_open=1;
      break;
    case 'L':
      if(reportfile_name)free(reportfile_name);
      reportfile_name=NULL;
      if(optarg)
	reportfile_name=strdup(optarg);
      reportfile_open=1;
      break;
    case 'm':
      {
        long int mmc_timeout_sec;
        if (get_int_arg(c, &mmc_timeout_sec)) {
          mmc_timeout_ms = 1000*mmc_timeout_sec;
        }
      }
      break;
    case 'n':
      get_int_arg(c, &force_cdrom_sectors);
      break;
    case 'o':
      get_int_arg(c, &force_cdrom_overlap);
      break;
    case 'O':
      get_int_arg(c, &sample_offset);
      break;
    case 'p':
      output_type=0;
      output_endian=-1;
      break;
    case 'r':
      output_type=0;
      output_endian=0;
      break;
    case 'q':
      verbose=CDDA_MESSAGE_FORGETIT;
      quiet=1;
      break;
    case 'Q':
      query_only=1;
      break;
    case 'R':
      output_type=0;
      output_endian=1;
      break;
    case 'S':
      get_int_arg(c, &force_cdrom_speed);
      break;
    case 't':
      get_int_arg(c, &toc_offset);
      break;
    case 'T':
      toc_bias=-1;
      break;
    case 'v':
      verbose=CDDA_MESSAGE_PRINTIT;
      quiet=0;
      break;
    case 'V':
      fprintf(stderr,PARANOIA_VERSION);
      fprintf(stderr,"\n");
      exit(0);
      break;
    case 'w':
      output_type=1;
      output_endian=0;
      break;
    case 'W':
      paranoia_mode&=~PARANOIA_MODE_REPAIR;
      break;
    case 'x':
      get_int_arg(c, &test_flags);
      break;
    case 'X':
      /*paranoia_mode&=~(PARANOIA_MODE_SCRATCH|PARANOIA_MODE_REPAIR);*/
      abort_on_skip=1;
      break;
    case 'Y':
      paranoia_mode|=PARANOIA_MODE_OVERLAP; /* cdda2wav style overlap
                                                check only */
      paranoia_mode&=~PARANOIA_MODE_VERIFY;
      break;
    case 'Z':
      paranoia_mode=PARANOIA_MODE_DISABLE;
      break;
    case 'A':
      run_cache_test=1;
      query_only=1;
      reportfile_open=1;
      verbose=CDDA_MESSAGE_PRINTIT;
      break;
    case 'z':
      if (optarg) {
        get_int_arg(c, &max_retries);
        paranoia_mode&=~PARANOIA_MODE_NEVERSKIP;
      } else {
        paranoia_mode|=PARANOIA_MODE_NEVERSKIP;
      }
      break;
    case 'E':
      force_overread=1;
      break;
    default:
      usage(stderr);
      exit(1);
    }
  }

  if(logfile_open){
    if(logfile_name==NULL)
      logfile_name=strdup("cdparanoia.log");
    if(!strcmp(logfile_name,"-")){
      logfile=stdout;
      logfile_open=0;
    }else{
      logfile=fopen(logfile_name,"w");
      if(logfile==NULL){
	report("Cannot open log summary file %s: %s",logfile_name,
	       strerror(errno));
	exit(1);
      }
    }
  }
  if(reportfile_open){
    if(reportfile_name==NULL)
      reportfile_name=strdup("cdparanoia.log");
    if(!strcmp(reportfile_name,"-")){
      reportfile=stdout;
      reportfile_open=0;
    }else{
      if(logfile_name && !strcmp(reportfile_name,logfile_name)){
	reportfile=logfile;
	reportfile_open=0;
      }else{
	reportfile=fopen(reportfile_name,"w");
	if(reportfile==NULL){
	  report("Cannot open debug log file %s: %s",reportfile_name,
		 strerror(errno));
	  exit(1);
	}
      }
    }
  }

  if(logfile){
    /* log command line and version */
    int i;
    for (i = 0; i < argc; i++)
      fprintf(logfile,"%s ",argv[i]);
    fprintf(logfile,"\n");

    if(reportfile!=logfile){
      fprintf(logfile,VERSION);
      fprintf(logfile,"\n");
      fprintf(logfile,"Using cdda library version: %s\n",cdda_version());
      fprintf(logfile,"Using paranoia library version: %s\n",paranoia_version());
    }
    fflush(logfile);
  }

  if(reportfile && reportfile!=logfile){
    /* log command line */
    int i;
    for (i = 0; i < argc; i++)
      fprintf(reportfile,"%s ",argv[i]);
    fprintf(reportfile,"\n");
    fflush(reportfile);
  }

  if(optind>=argc && !query_only){
    if(batch)
      span=NULL;
    else{
      /* D'oh.  No span. Fetch me a brain, Igor. */
      usage(stderr);
      exit(1);
    }
  }else
    if (argv[optind]) span=strdup(argv[optind]);

  report(PARANOIA_VERSION);
  if(verbose){
    report("Using cdda library version: %s",cdda_version());
    report("Using paranoia library version: %s",paranoia_version());
  }

  /* Query the cdrom/disc; we may need to override some settings */

  if(force_cdrom_device)
    d=cdda_identify(force_cdrom_device,verbose,NULL);
  else {
    driver_id_t driver_id;
    char **ppsz_cd_drives = cdio_get_devices_with_cap_ret(NULL,
                                                          CDIO_FS_AUDIO,
                                                          false,
                                                          &driver_id);
    if (ppsz_cd_drives && *ppsz_cd_drives) {
      d=cdda_identify(*ppsz_cd_drives,verbose, NULL);
    } else {
      report("\nUnable find or access a CD-ROM drive with an audio CD"
             " in it.");
      report("\nYou might try specifying the drive, especially if it has"
             " mixed-mode (and non-audio) format tracks");
      exit(1);
    }

    cdio_free_device_list(ppsz_cd_drives);
  }

  if(!d){
    if(!verbose)
      report("\nUnable to open cdrom drive; -v might give more information.");
    exit(1);
  }

  if(verbose)
    cdda_verbose_set(d,CDDA_MESSAGE_PRINTIT,CDDA_MESSAGE_PRINTIT);
  else
    cdda_verbose_set(d,CDDA_MESSAGE_PRINTIT,CDDA_MESSAGE_FORGETIT);

  /* possibly force hand on endianness of drive, sector request size */
  if(force_cdrom_endian!=-1){
    d->bigendianp=force_cdrom_endian;
    switch(force_cdrom_endian){
    case 0:
      report("Forcing CDROM sense to little-endian; ignoring preset and autosense");
      break;
    case 1:
      report("Forcing CDROM sense to big-endian; ignoring preset and autosense");
      break;
    }
  }
  if (force_cdrom_sectors!=-1) {
    if(force_cdrom_sectors<0 || force_cdrom_sectors>100){
      report("Default sector read size must be 1<= n <= 100\n");
      cdda_close(d);
      d=NULL;
      exit(1);
    }
    report("Forcing default to read %ld sectors; "
	   "ignoring preset and autosense",force_cdrom_sectors);
    d->nsectors=force_cdrom_sectors;
  }
  if (force_cdrom_overlap!=-1) {
    if (force_cdrom_overlap<0 || force_cdrom_overlap>CDIO_CD_FRAMES_PER_SEC) {
      report("Search overlap sectors must be 0<= n <=75\n");
      cdda_close(d);
      d=NULL;
      if(logfile && logfile != stdout)
        fclose(logfile);
      exit(1);
    }
    report("Forcing search overlap to %ld sectors; "
	   "ignoring autosense",force_cdrom_overlap);
  }

  switch( cdda_open(d) ) {
  case -2:case -3:case -4:case -5:
    report("\nUnable to open disc.  Is there an audio CD in the drive?");
    exit(1);
  case -6:
    report("\nCdparanoia could not find a way to read audio from this drive.");
    exit(1);
  case 0:
    break;
  default:
    report("\nUnable to open disc.");
    exit(1);
  }

  d->i_test_flags = test_flags;

  if (force_cdrom_speed == 0) force_cdrom_speed = -1;

  if (force_cdrom_speed != -1) {
    report("\nAttempting to set speed to %ldx... ", force_cdrom_speed);
  } else {
    if (verbose)
      report("\nAttempting to set cdrom to full speed... ");
  }

  if (cdda_speed_set(d, force_cdrom_speed)) {
    if (verbose || force_cdrom_speed != -1)
      report("\tCDROM speed set FAILED. Continuing anyway...");
  } else {
    if (verbose)
      report("\tdrive returned OK.");
  }

  if(run_cache_test){
    int warn=analyze_cache(d, stderr, reportfile, force_cdrom_speed);

    if(warn==0){
      reportC("\nDrive tests OK with Paranoia.\n\n");
      return 0;
    }

    if(warn==1)
      reportC("\nWARNING! PARANOIA MAY NOT BE TRUSTWORTHY WITH THIS DRIVE!\n"
	      "\nThe Paranoia library may not model this CDROM drive's cache"
	      "\ncorrectly according to this analysis run. Analysis is not"
	      "\nalways accurate (it can be fooled by machine load or random"
	      "\nkernel latencies), but if a failed result happens more often"
	      "\nthan one time in twenty on an unloaded machine, please mail"
	      "\nthe %s file produced by this failed analysis to"
	      "\[email protected] to assist developers in extending"
	      "\nParanoia to handle this CDROM properly.\n\n",reportfile_name);
    return 1;
  }


  /* Dump the TOC */
  if (query_only || verbose ) display_toc(d);

  if (query_only) exit(0);

  /* bias the disc.  A hack.  Of course. this is never the default. */
  /*
     Some CD-ROM/CD-R drives will add an offset to the position on
     reading audio data. This is usually around 500-700 audio samples
     (ca. 1/75 second) on reading. So when this program queries a
     specific sector, it might not receive exactly that sector, but
     shifted by some amount.

     Note that if ripping includes the end of the CD, this will this
     cause this program to attempt to read partial sectors before or
     past the known user data area of the disc, probably causing read
     errors on most drives and possibly even hard lockups on some
     buggy hardware.

     [Note to libcdio driver hackers: make sure all CD-drivers don't
     try to read outside of the stated disc boundaries.]
  */
  if(sample_offset){
    toc_offset+=sample_offset/588;
    sample_offset%=588;
    if(sample_offset<0){
      sample_offset+=588;
      toc_offset--;
    }
  }

  if (toc_bias) {
    toc_offset = -cdda_track_firstsector(d,1);
  }

  {
    int i;
    for( i=0; i < d->tracks+1; i++ )
      d->disc_toc[i].dwStartSector+=toc_offset;
  }

  if (d->nsectors==1) {
    report("WARNING: The autosensed/selected sectors per read value is\n"
           "         one sector, making it very unlikely Paranoia can \n"
           "         work.\n\n"
           "         Attempting to continue...\n\n");
  }

  /* parse the span, set up begin and end sectors */

  {
    long i_first_lsn;
    long i_last_lsn;
    long batch_first;
    long batch_last;
    int batch_track;

    if (span) {
      /* look for the hyphen */
      char *span2=strchr(span,'-');
      if(strrchr(span,'-')!=span2){
        report("Error parsing span argument");
        exit(1);
      }

      if (span2!=NULL) {
        *span2='\0';
        span2++;
      }

      i_first_lsn=parse_offset(d, span, -1);

      if(i_first_lsn==-1)
        i_last_lsn=parse_offset(d, span2, cdda_disc_firstsector(d));

      else
        i_last_lsn=parse_offset(d, span2, i_first_lsn);

      if (i_first_lsn == -1) {
        if (i_last_lsn == -1) {
          report("Error parsing span argument");
          exit(1);
        } else {
          i_first_lsn=cdda_disc_firstsector(d);
        }
      } else {
        if (i_last_lsn==-1) {
          if (span2) { /* There was a hyphen */
            i_last_lsn=cdda_disc_lastsector(d);
          } else {
            i_last_lsn=
              cdda_track_lastsector(d,cdda_sector_gettrack(d, i_first_lsn));
          }
        }
      }
    } else {
      i_first_lsn = cdda_disc_firstsector(d);
      i_last_lsn  = cdda_disc_lastsector(d);
    }

    {
      int track1 = cdda_sector_gettrack(d, i_first_lsn);

      int track2 = cdda_sector_gettrack(d, i_last_lsn);
      long off1  = i_first_lsn - cdda_track_firstsector(d, track1);
      long off2  = i_last_lsn  - cdda_track_firstsector(d, track2);
      int i;

      for( i=track1; i<=track2; i++ ) {
        if(i != 0 && !cdda_track_audiop(d,i)){
	  report("Selected span contains non audio track at track %02d.  Aborting.\n\n", i);
          exit(1);
          if (i == 0)
            i = cdio_get_first_track_num(d->p_cdio) - 1;
        }
      }

      report("Ripping from sector %7ld (track %2d [%d:%02d.%02d])\n"
	     "\t  to sector %7ld (track %2d [%d:%02d.%02d])\n",
	     i_first_lsn,
	     track1,
	     (int) (off1/(CDIO_CD_FRAMES_PER_MIN)),
	     (int) ((off1/CDIO_CD_FRAMES_PER_SEC) % CDIO_CD_SECS_PER_MIN),
	     (int)(off1 % CDIO_CD_FRAMES_PER_SEC),
	     i_last_lsn,
	     track2,
	     (int) (off2/(CDIO_CD_FRAMES_PER_MIN)),
	     (int) ((off2/CDIO_CD_FRAMES_PER_SEC) % CDIO_CD_SECS_PER_MIN),
	     (int)(off2 % CDIO_CD_FRAMES_PER_SEC));

    }

    if (toc_offset && !force_overread) {
	d->disc_toc[d->tracks].dwStartSector -= toc_offset;
	if (i_last_lsn > cdda_track_lastsector(d, d->tracks))
		i_last_lsn -= toc_offset;
    }
    {
      long cursor;
      int16_t offset_buffer[1176];
      int offset_buffer_used=0;
      int offset_skip=sample_offset*4;
      off_t sectorlen;

#if defined(HAVE_GETUID) && (defined(HAVE_SETEUID) || defined(HAVE_SETEGID))
      int dummy __attribute__((unused));
#endif
      p=paranoia_init(d);
      paranoia_modeset(p,paranoia_mode);
      if(force_cdrom_overlap!=-1)paranoia_overlapset(p,force_cdrom_overlap);

      if(verbose) {
        cdda_verbose_set(d,CDDA_MESSAGE_LOGIT,CDDA_MESSAGE_LOGIT);
        cdio_loglevel_default = CDIO_LOG_INFO;
      } else
        cdda_verbose_set(d,CDDA_MESSAGE_FORGETIT,CDDA_MESSAGE_FORGETIT);

      paranoia_seek(p,cursor=i_first_lsn,SEEK_SET);

      /* this is probably a good idea in general */
#if defined(HAVE_GETUID) && defined(HAVE_SETEUID)
      dummy = seteuid(getuid());
#endif
#if defined(HAVE_GETGID) && defined(HAVE_SETEGID)
      dummy = setegid(getgid());
#endif

      /* we'll need to be able to read one sector past user data if we
         have a sample offset in order to pick up the last bytes.  We
         need to set the disc length forward here so that the libs are
         willing to read past, assuming that works on the hardware, of
         course */
      if(sample_offset && force_overread)
        d->disc_toc[d->tracks].dwStartSector++;

      while(cursor<=i_last_lsn){
        char outfile_name[PATH_MAX];
        if ( batch ){
          batch_first = cursor;
          batch_track = cdda_sector_gettrack(d,cursor);
          batch_last  = cdda_track_lastsector(d, batch_track);
          if (batch_last>i_last_lsn) batch_last=i_last_lsn;
        } else {
          batch_first = i_first_lsn;
          batch_last  = i_last_lsn;
          batch_track = -1;
        }

        callbegin=batch_first;
        callend=batch_last;

        /* argv[optind] is the span, argv[optind+1] (if exists) is outfile */

        if (optind+1<argc) {
          if (!strcmp(argv[optind+1],"-") ){
            out = dup(fileno(stdout));
            if(out==-1){
              report("Cannot dupplicate stdout: %s",
                     strerror(errno));
              exit(1);
            }
            if(batch)
              report("Are you sure you wanted 'batch' "
                     "(-B) output with stdout?");
            report("outputting to stdout\n");
            if(logfile){
              fprintf(logfile,"outputting to stdout\n");
              fflush(logfile);
            }
            outfile_name[0]='\0';
          } else {
            char dirname[PATH_MAX];
            char *basename=split_base_dir(argv[optind+1], dirname,
					  PATH_MAX);

	    if (NULL == basename) {
	      report("Output filename too long");
	      exit(1);
	    }

            if(batch) {
	      if (strlen(argv[optind+1]) - 10 > PATH_MAX) {
		report("Output filename too long");
		exit(1);
	      }
              snprintf(outfile_name, PATH_MAX,
		       " %strack%02d.%s", dirname,
                       batch_track, basename);
            } else
              snprintf(outfile_name, PATH_MAX, "%s%s", dirname, basename);

            if(basename[0]=='\0'){
              switch (output_type) {
              case 0: /* raw */
                strncat(outfile_name, "cdda.raw", sizeof("cdda.raw"));
                break;
              case 1:
                strncat(outfile_name, "cdda.wav", sizeof("cdda.wav"));
                break;
              case 2:
                strncat(outfile_name, "cdda.aifc", sizeof("cdda.aifc"));
                break;
              case 3:
                strncat(outfile_name, "cdda.aiff", sizeof("cdda.aiff"));
                break;
              }
            }

            out=open(outfile_name,O_RDWR|O_CREAT|O_TRUNC|O_BINARY,0666);
            if(out==-1){
              report("Cannot open specified output file %s: %s",
                      outfile_name, strerror(errno));
              exit(1);
            }
            report("outputting to %s\n", outfile_name);
            if(logfile){
              fprintf(logfile,"outputting to %s\n",outfile_name);
              fflush(logfile);
            }
          }
        } else {
          /* default */
          if (batch)
            sprintf(outfile_name,"track%02d.", batch_track);
          else
            outfile_name[0]='\0';

          switch(output_type){
          case 0: /* raw */
            strncat(outfile_name, "cdda.raw", sizeof("cdda.raw"));
            break;
          case 1:
            strncat(outfile_name, "cdda.wav", sizeof("cdda.wav"));
            break;
          case 2:
            strncat(outfile_name, "cdda.aifc", sizeof("cdda.aifc"));
            break;
          case 3:
            strncat(outfile_name, "cdda.aiff", sizeof("cdda.aiff"));
            break;
          }

          out = open(outfile_name, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
          if(out==-1){
            report("Cannot open default output file %s: %s", outfile_name,
                    strerror(errno));
            exit(1);
          }
          report("outputting to %s\n", outfile_name);
          if(logfile){
            fprintf(logfile,"outputting to %s\n",outfile_name);
            fflush(logfile);
          }

        }

	sectorlen = batch_last - batch_first + 1;
	if (cdda_sector_gettrack(d, cursor) == d->tracks &&
		toc_offset > 0 && !force_overread){
		sectorlen += toc_offset;
	}
        switch(output_type) {
        case 0: /* raw */
          break;
        case 1: /* wav */
	  WriteWav(out, sectorlen * CD_FRAMESIZE_RAW);
          break;
        case 2: /* aifc */
	  WriteAifc(out, sectorlen * CD_FRAMESIZE_RAW);
          break;
        case 3: /* aiff */
	  WriteAiff(out, sectorlen * CD_FRAMESIZE_RAW);
          break;
        }

        /* Off we go! */

        if(offset_buffer_used){
          /* partial sector from previous batch read */
          cursor++;
          if (buffering_write(out,
                              ((char *)offset_buffer)+offset_buffer_used,
                              CDIO_CD_FRAMESIZE_RAW-offset_buffer_used)){
            report("Error writing output: %s", strerror(errno));
            exit(1);
          }
        }

        skipped_flag=0;
        while(cursor<=batch_last){
          /* read a sector */
          int16_t *readbuf=paranoia_read_limited(p, callback, max_retries);
          char *err=cdda_errors(d);
          char *mes=cdda_messages(d);

          if(mes || err)
            fprintf(stderr,"\r                               "
                    "                                           \r%s%s\n",
                    mes?mes:"",err?err:"");

          if (err) free(err);
          if (mes) free(mes);
          if( readbuf==NULL) {
	    if(errno==EBADF || errno==ENOMEDIUM){
	      report("\nparanoia_read: CDROM drive unavailable, bailing.\n");
	      exit(1);
	    }
            skipped_flag=1;
            report("\nparanoia_read: Unrecoverable error, bailing.\n");
            break;
          }
          if(skipped_flag && abort_on_skip){
            cursor=batch_last+1;
            break;
          }

          skipped_flag=0;
          cursor++;

          if (output_endian!=bigendianp()) {
            int i;
            for (i=0; i<CDIO_CD_FRAMESIZE_RAW/2; i++)
              readbuf[i]=UINT16_SWAP_LE_BE_C(readbuf[i]);
          }

          callback(cursor*(CD_FRAMEWORDS)-1, PARANOIA_CB_WROTE);

          if (buffering_write(out,((char *)readbuf)+offset_skip,
                             CDIO_CD_FRAMESIZE_RAW-offset_skip)){
            report("Error writing output: %s", strerror(errno));
            exit(1);
          }
          offset_skip=0;

          if (output_endian != bigendianp()){
            int i;
            for (i=0; i<CDIO_CD_FRAMESIZE_RAW/2; i++)
              readbuf[i] = UINT16_SWAP_LE_BE_C(readbuf[i]);
          }

          /* One last bit of silliness to deal with sample offsets */
          if(sample_offset && cursor>batch_last){
	    if (cdda_sector_gettrack(d, batch_last) < d->tracks || force_overread) {
	      int i;

	      /* Need to flush the buffer when overreading into the leadout */
	      if (cdda_sector_gettrack(d, batch_last) == d->tracks)
		paranoia_seek(p, cursor, SEEK_SET);

	      /* read a sector and output the partial offset.  Save the
		 rest for the next batch iteration */
	      readbuf=paranoia_read_limited(p,callback,max_retries);
	      err=cdda_errors(d);mes=cdda_messages(d);

	      if(mes || err)
		fprintf(stderr,"\r                               "
			"                                           \r%s%s\n",
			mes?mes:"",err?err:"");

	      if(err)free(err);if(mes)free(mes);
	      if(readbuf==NULL){
		skipped_flag=1;
		report("\nparanoia_read: Unrecoverable error reading through "
		       "sample_offset shift\n\tat end of track, bailing.\n");
		break;
	      }
	      if (skipped_flag && abort_on_skip) break;
	      skipped_flag=0;
	      /* do not move the cursor */

	      if(output_endian!=bigendianp())
		for(i=0;i<CD_FRAMESIZE_RAW/2;i++)
		  offset_buffer[i]=UINT16_SWAP_LE_BE_C(readbuf[i]);
	      else
		memcpy(offset_buffer,readbuf,CD_FRAMESIZE_RAW);
	      offset_buffer_used=sample_offset*4;
	      callback(cursor* (CD_FRAMEWORDS), PARANOIA_CB_WROTE);
	    } else {
	      memset(offset_buffer, 0, sizeof(offset_buffer));
	      offset_buffer_used = sample_offset * 4;
	    }

	    if(buffering_write(out,(char *)offset_buffer,
			       offset_buffer_used)){
	      report("Error writing output: %s", strerror(errno));
	      exit(1);
	    }
	  }
        }

	/* Write sectors of silent audio to compensate for
	   missing samples that would be in the leadout */
	if (cdda_sector_gettrack(d, batch_last) == d->tracks &&
		toc_offset > 0 && !force_overread)
	{
		char *silence;
		size_t missing_sector_bytes = CD_FRAMESIZE_RAW * toc_offset;

		silence = calloc(toc_offset, CD_FRAMESIZE_RAW);
		if (!silence || buffering_write(out, silence, missing_sector_bytes)) {
		      report("Error writing output: %s", strerror(errno));
		      exit(1);
		}
		free(silence);
	}

        callback(cursor* (CDIO_CD_FRAMESIZE_RAW/2)-1,
		 PARANOIA_CB_FINISHED);
        buffering_close(out);
        if(skipped_flag){
          /* remove the file */
          report("\nRemoving aborted file: %s", outfile_name);
          unlink(outfile_name);
          /* make the cursor correct if we have another track */
          if(batch_track!=-1){
            batch_track++;
            cursor=cdda_track_firstsector(d,batch_track);
            paranoia_seek(p,cursor, SEEK_SET);
            offset_skip=sample_offset*4;
            offset_buffer_used=0;
          }
        }
        report("\n");
      }

      paranoia_free(p);
      p=NULL;
    }
  }

  report("Done.\n\n");

  return 0;
}