apt-pkg/cdrom.cc

   1 /*
   2  */
   3
   4 #include<apt-pkg/init.h>
   5 #include<apt-pkg/error.h>
   6 #include<apt-pkg/cdromutl.h>
   7 #include<apt-pkg/strutl.h>
   8 #include<apt-pkg/cdrom.h>
   9 #include<apt-pkg/aptconfiguration.h>
  10
  11 #include<sstream>
  12 #include<fstream>
  13 #include<config.h>
  14 #include<apti18n.h>
  15 #include <sys/stat.h>
  16 #include <fcntl.h>
  17 #include <dirent.h>
  18 #include <unistd.h>
  19 #include <stdio.h>
  20 #include <algorithm>
  21 #include <dlfcn.h>
  22
  23 #include "indexcopy.h"
  24
  25 using namespace std;
  26
  27 // FindPackages - Find the package files on the CDROM                   /*{{{*/
  28 // ---------------------------------------------------------------------
  29 /* We look over the cdrom for package files. This is a recursive
  30    search that short circuits when it his a package file in the dir.
  31    This speeds it up greatly as the majority of the size is in the
  32    binary-* sub dirs. */
  33 bool pkgCdrom::FindPackages(string CD,
  34                             vector<string> &List,
  35                             vector<string> &SList,
  36                             vector<string> &SigList,
  37                             vector<string> &TransList,
  38                             string &InfoDir, pkgCdromStatus *log,
  39                             unsigned int Depth)
  40 {
  41    static ino_t Inodes[9];
  42    DIR *D;
  43
  44    // if we have a look we "pulse" now
  45    if(log)
  46       log->Update();
  47
  48    if (Depth >= 7)
  49       return true;
  50
  51    if (CD[CD.length()-1] != '/')
  52       CD += '/';
  53
  54    if (chdir(CD.c_str()) != 0)
  55       return _error->Errno("chdir","Unable to change to %s",CD.c_str());
  56
  57    // Look for a .disk subdirectory
  58    struct stat Buf;
  59    if (stat(".disk",&Buf) == 0)
  60    {
  61       if (InfoDir.empty() == true)
  62          InfoDir = CD + ".disk/";
  63    }
  64
  65    // Don't look into directories that have been marked to ingore.
  66    if (stat(".aptignr",&Buf) == 0)
  67       return true;
  68
  69
  70    /* Check _first_ for a signature file as apt-cdrom assumes that all files
  71       under a Packages/Source file are in control of that file and stops
  72       the scanning
  73    */
  74    if (stat("Release.gpg",&Buf) == 0)
  75    {
  76       SigList.push_back(CD);
  77    }
  78    /* Aha! We found some package files. We assume that everything under
  79       this dir is controlled by those package files so we don't look down
  80       anymore */
  81    if (stat("Packages",&Buf) == 0 || stat("Packages.gz",&Buf) == 0)
  82    {
  83       List.push_back(CD);
  84
  85       // Continue down if thorough is given
  86       if (_config->FindB("APT::CDROM::Thorough",false) == false)
  87          return true;
  88    }
  89    if (stat("Sources.gz",&Buf) == 0 || stat("Sources",&Buf) == 0)
  90    {
  91       SList.push_back(CD);
  92
  93       // Continue down if thorough is given
  94       if (_config->FindB("APT::CDROM::Thorough",false) == false)
  95          return true;
  96    }
  97
  98    // see if we find translatin indexes
  99    if (stat("i18n",&Buf) == 0)
 100    {
 101       D = opendir("i18n");
 102       for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
 103       {
 104          if(strstr(Dir->d_name,"Translation") != NULL)
 105          {
 106             if (_config->FindB("Debug::aptcdrom",false) == true)
 107                std::clog << "found translations: " << Dir->d_name << "\n";
 108             string file = Dir->d_name;
 109             if(file.substr(file.size()-3,file.size()) == ".gz")
 110                file = file.substr(0,file.size()-3);
 111             TransList.push_back(CD+"i18n/"+ file);
 112          }
 113       }
 114       closedir(D);
 115    }
 116
 117
 118    D = opendir(".");
 119    if (D == 0)
 120       return _error->Errno("opendir","Unable to read %s",CD.c_str());
 121
 122    // Run over the directory
 123    for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
 124    {
 125       // Skip some files..
 126       if (strcmp(Dir->d_name,".") == 0 ||
 127           strcmp(Dir->d_name,"..") == 0 ||
 128           //strcmp(Dir->d_name,"source") == 0 ||
 129           strcmp(Dir->d_name,".disk") == 0 ||
 130           strcmp(Dir->d_name,"experimental") == 0 ||
 131           strcmp(Dir->d_name,"binary-all") == 0 ||
 132           strcmp(Dir->d_name,"debian-installer") == 0)
 133          continue;
 134
 135       // See if the name is a sub directory
 136       struct stat Buf;
 137       if (stat(Dir->d_name,&Buf) != 0)
 138          continue;
 139
 140       if (S_ISDIR(Buf.st_mode) == 0)
 141          continue;
 142
 143       unsigned int I;
 144       for (I = 0; I != Depth; I++)
 145          if (Inodes[I] == Buf.st_ino)
 146             break;
 147       if (I != Depth)
 148          continue;
 149
 150       // Store the inodes weve seen
 151       Inodes[Depth] = Buf.st_ino;
 152
 153       // Descend
 154       if (FindPackages(CD + Dir->d_name,List,SList,SigList,TransList,InfoDir,log,Depth+1) == false)
 155          break;
 156
 157       if (chdir(CD.c_str()) != 0)
 158       {
 159          _error->Errno("chdir","Unable to change to %s", CD.c_str());
 160          closedir(D);
 161          return false;
 162       }
 163    };
 164
 165    closedir(D);
 166
 167    return !_error->PendingError();
 168 }
 169                                                                         /*}}}*/
 170 // Score - We compute a 'score' for a path                              /*{{{*/
 171 // ---------------------------------------------------------------------
 172 /* Paths are scored based on how close they come to what I consider
 173    normal. That is ones that have 'dist' 'stable' 'testing' will score
 174    higher than ones without. */
 175 int pkgCdrom::Score(string Path)
 176 {
 177    int Res = 0;
 178    if (Path.find("stable/") != string::npos)
 179       Res += 29;
 180    if (Path.find("/binary-") != string::npos)
 181       Res += 20;
 182    if (Path.find("testing/") != string::npos)
 183       Res += 28;
 184    if (Path.find("unstable/") != string::npos)
 185       Res += 27;
 186    if (Path.find("/dists/") != string::npos)
 187       Res += 40;
 188    if (Path.find("/main/") != string::npos)
 189       Res += 20;
 190    if (Path.find("/contrib/") != string::npos)
 191       Res += 20;
 192    if (Path.find("/non-free/") != string::npos)
 193       Res += 20;
 194    if (Path.find("/non-US/") != string::npos)
 195       Res += 20;
 196    if (Path.find("/source/") != string::npos)
 197       Res += 10;
 198    if (Path.find("/debian/") != string::npos)
 199       Res -= 10;
 200
 201    // check for symlinks in the patch leading to the actual file
 202    // a symlink gets a big penalty
 203    struct stat Buf;
 204    string statPath = flNotFile(Path);
 205    string cdromPath = _config->FindDir("Acquire::cdrom::mount");
 206    while(statPath != cdromPath && statPath != "./") {
 207       statPath.resize(statPath.size()-1);  // remove the trailing '/'
 208       if (lstat(statPath.c_str(),&Buf) == 0) {
 209         if(S_ISLNK(Buf.st_mode)) {
 210            Res -= 60;
 211            break;
 212         }
 213       }
 214       statPath = flNotFile(statPath); // descent
 215    }
 216
 217    return Res;
 218 }
 219                                                                         /*}}}*/
 220 // DropBinaryArch - Dump dirs with a string like /binary-<foo>/         /*{{{*/
 221 // ---------------------------------------------------------------------
 222 /* Here we drop everything that is not this machines arch */
 223 bool pkgCdrom::DropBinaryArch(vector<string> &List)
 224 {
 225
 226    for (unsigned int I = 0; I < List.size(); I++)
 227    {
 228       const char *Str = List[I].c_str();
 229       const char *Start, *End;
 230       if ((Start = strstr(Str,"/binary-")) == 0)
 231          continue;
 232
 233       // Between Start and End is the architecture
 234       Start += 8;
 235       if ((End = strstr(Start,"/")) != 0 && Start != End &&
 236           APT::Configuration::checkArchitecture(string(Start, End)) == true)
 237          continue; // okay, architecture is accepted
 238
 239       // not accepted -> Erase it
 240       List.erase(List.begin() + I);
 241       --I; // the next entry is at the same index after the erase
 242    }
 243
 244    return true;
 245 }
 246                                                                         /*}}}*/
 247 // DropRepeats - Drop repeated files resulting from symlinks            /*{{{*/
 248 // ---------------------------------------------------------------------
 249 /* Here we go and stat every file that we found and strip dup inodes. */
 250 bool pkgCdrom::DropRepeats(vector<string> &List,const char *Name)
 251 {
 252    // Get a list of all the inodes
 253    ino_t *Inodes = new ino_t[List.size()];
 254    for (unsigned int I = 0; I != List.size(); I++)
 255    {
 256       struct stat Buf;
 257       if (stat((List[I] + Name).c_str(),&Buf) != 0 &&
 258           stat((List[I] + Name + ".gz").c_str(),&Buf) != 0)
 259          _error->Errno("stat","Failed to stat %s%s",List[I].c_str(),
 260                        Name);
 261       Inodes[I] = Buf.st_ino;
 262    }
 263
 264    if (_error->PendingError() == true) {
 265       delete[] Inodes;
 266       return false;
 267    }
 268
 269    // Look for dups
 270    for (unsigned int I = 0; I != List.size(); I++)
 271    {
 272       for (unsigned int J = I+1; J < List.size(); J++)
 273       {
 274          // No match
 275          if (Inodes[J] != Inodes[I])
 276             continue;
 277
 278          // We score the two paths.. and erase one
 279          int ScoreA = Score(List[I]);
 280          int ScoreB = Score(List[J]);
 281          if (ScoreA < ScoreB)
 282          {
 283             List[I] = string();
 284             break;
 285          }
 286
 287          List[J] = string();
 288       }
 289    }
 290    delete[] Inodes;
 291
 292    // Wipe erased entries
 293    for (unsigned int I = 0; I < List.size();)
 294    {
 295       if (List[I].empty() == false)
 296          I++;
 297       else
 298          List.erase(List.begin()+I);
 299    }
 300
 301    return true;
 302 }
 303                                                                         /*}}}*/
 304 // ReduceSourceList - Takes the path list and reduces it                /*{{{*/
 305 // ---------------------------------------------------------------------
 306 /* This takes the list of source list expressed entires and collects
 307    similar ones to form a single entry for each dist */
 308 void pkgCdrom::ReduceSourcelist(string CD,vector<string> &List)
 309 {
 310    sort(List.begin(),List.end());
 311
 312    // Collect similar entries
 313    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 314    {
 315       // Find a space..
 316       string::size_type Space = (*I).find(' ');
 317       if (Space == string::npos)
 318          continue;
 319       string::size_type SSpace = (*I).find(' ',Space + 1);
 320       if (SSpace == string::npos)
 321          continue;
 322
 323       string Word1 = string(*I,Space,SSpace-Space);
 324       string Prefix = string(*I,0,Space);
 325       for (vector<string>::iterator J = List.begin(); J != I; ++J)
 326       {
 327          // Find a space..
 328          string::size_type Space2 = (*J).find(' ');
 329          if (Space2 == string::npos)
 330             continue;
 331          string::size_type SSpace2 = (*J).find(' ',Space2 + 1);
 332          if (SSpace2 == string::npos)
 333             continue;
 334
 335          if (string(*J,0,Space2) != Prefix)
 336             continue;
 337          if (string(*J,Space2,SSpace2-Space2) != Word1)
 338             continue;
 339
 340          *J += string(*I,SSpace);
 341          *I = string();
 342       }
 343    }
 344
 345    // Wipe erased entries
 346    for (unsigned int I = 0; I < List.size();)
 347    {
 348       if (List[I].empty() == false)
 349          I++;
 350       else
 351          List.erase(List.begin()+I);
 352    }
 353 }
 354                                                                         /*}}}*/
 355 // WriteDatabase - Write the CDROM Database file                        /*{{{*/
 356 // ---------------------------------------------------------------------
 357 /* We rewrite the configuration class associated with the cdrom database. */
 358 bool pkgCdrom::WriteDatabase(Configuration &Cnf)
 359 {
 360    string DFile = _config->FindFile("Dir::State::cdroms");
 361    string NewFile = DFile + ".new";
 362
 363    unlink(NewFile.c_str());
 364    ofstream Out(NewFile.c_str());
 365    if (!Out)
 366       return _error->Errno("ofstream::ofstream",
 367                            "Failed to open %s.new",DFile.c_str());
 368
 369    /* Write out all of the configuration directives by walking the
 370       configuration tree */
 371    const Configuration::Item *Top = Cnf.Tree(0);
 372    for (; Top != 0;)
 373    {
 374       // Print the config entry
 375       if (Top->Value.empty() == false)
 376          Out <<  Top->FullTag() + " \"" << Top->Value << "\";" << endl;
 377
 378       if (Top->Child != 0)
 379       {
 380          Top = Top->Child;
 381          continue;
 382       }
 383
 384       while (Top != 0 && Top->Next == 0)
 385          Top = Top->Parent;
 386       if (Top != 0)
 387          Top = Top->Next;
 388    }
 389
 390    Out.close();
 391
 392    link(DFile.c_str(),string(DFile + '~').c_str());
 393    if (rename(NewFile.c_str(),DFile.c_str()) != 0)
 394       return _error->Errno("rename","Failed to rename %s.new to %s",
 395                            DFile.c_str(),DFile.c_str());
 396
 397    return true;
 398 }
 399                                                                         /*}}}*/
 400 // WriteSourceList - Write an updated sourcelist                        /*{{{*/
 401 // ---------------------------------------------------------------------
 402 /* This reads the old source list and copies it into the new one. It
 403    appends the new CDROM entires just after the first block of comments.
 404    This places them first in the file. It also removes any old entries
 405    that were the same. */
 406 bool pkgCdrom::WriteSourceList(string Name,vector<string> &List,bool Source)
 407 {
 408    if (List.empty() == true)
 409       return true;
 410
 411    string File = _config->FindFile("Dir::Etc::sourcelist");
 412
 413    // Open the stream for reading
 414    ifstream F((FileExists(File)?File.c_str():"/dev/null"),
 415               ios::in );
 416    if (!F != 0)
 417       return _error->Errno("ifstream::ifstream","Opening %s",File.c_str());
 418
 419    string NewFile = File + ".new";
 420    unlink(NewFile.c_str());
 421    ofstream Out(NewFile.c_str());
 422    if (!Out)
 423       return _error->Errno("ofstream::ofstream",
 424                            "Failed to open %s.new",File.c_str());
 425
 426    // Create a short uri without the path
 427    string ShortURI = "cdrom:[" + Name + "]/";
 428    string ShortURI2 = "cdrom:" + Name + "/";     // For Compatibility
 429
 430    string Type;
 431    if (Source == true)
 432       Type = "deb-src";
 433    else
 434       Type = "deb";
 435
 436    char Buffer[300];
 437    int CurLine = 0;
 438    bool First = true;
 439    while (F.eof() == false)
 440    {
 441       F.getline(Buffer,sizeof(Buffer));
 442       CurLine++;
 443       if (F.fail() && !F.eof())
 444          return _error->Error(_("Line %u too long in source list %s."),
 445                               CurLine,File.c_str());
 446       _strtabexpand(Buffer,sizeof(Buffer));
 447       _strstrip(Buffer);
 448
 449       // Comment or blank
 450       if (Buffer[0] == '#' || Buffer[0] == 0)
 451       {
 452          Out << Buffer << endl;
 453          continue;
 454       }
 455
 456       if (First == true)
 457       {
 458          for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 459          {
 460             string::size_type Space = (*I).find(' ');
 461             if (Space == string::npos)
 462                return _error->Error("Internal error");
 463             Out << Type << " cdrom:[" << Name << "]/" << string(*I,0,Space) <<
 464                " " << string(*I,Space+1) << endl;
 465          }
 466       }
 467       First = false;
 468
 469       // Grok it
 470       string cType;
 471       string URI;
 472       const char *C = Buffer;
 473       if (ParseQuoteWord(C,cType) == false ||
 474           ParseQuoteWord(C,URI) == false)
 475       {
 476          Out << Buffer << endl;
 477          continue;
 478       }
 479
 480       // Emit lines like this one
 481       if (cType != Type || (string(URI,0,ShortURI.length()) != ShortURI &&
 482           string(URI,0,ShortURI.length()) != ShortURI2))
 483       {
 484          Out << Buffer << endl;
 485          continue;
 486       }
 487    }
 488
 489    // Just in case the file was empty
 490    if (First == true)
 491    {
 492       for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 493       {
 494          string::size_type Space = (*I).find(' ');
 495          if (Space == string::npos)
 496             return _error->Error("Internal error");
 497
 498          Out << "deb cdrom:[" << Name << "]/" << string(*I,0,Space) <<
 499             " " << string(*I,Space+1) << endl;
 500       }
 501    }
 502
 503    Out.close();
 504
 505    rename(File.c_str(),string(File + '~').c_str());
 506    if (rename(NewFile.c_str(),File.c_str()) != 0)
 507       return _error->Errno("rename","Failed to rename %s.new to %s",
 508                            File.c_str(),File.c_str());
 509
 510    return true;
 511 }
 512                                                                         /*}}}*/
 513 bool pkgCdrom::Ident(string &ident, pkgCdromStatus *log)                /*{{{*/
 514 {
 515    stringstream msg;
 516
 517    // Startup
 518    string CDROM = _config->FindDir("Acquire::cdrom::mount");
 519    if (CDROM[0] == '.')
 520       CDROM= SafeGetCWD() + '/' + CDROM;
 521
 522    if (log != NULL)
 523    {
 524       msg.str("");
 525       ioprintf(msg, _("Using CD-ROM mount point %s\nMounting CD-ROM\n"),
 526                       CDROM.c_str());
 527       log->Update(msg.str());
 528    }
 529    if (MountCdrom(CDROM) == false)
 530       return _error->Error("Failed to mount the cdrom.");
 531
 532    // Hash the CD to get an ID
 533    if (log != NULL)
 534       log->Update(_("Identifying.. "));
 535
 536
 537    if (IdentCdrom(CDROM,ident) == false)
 538    {
 539       ident = "";
 540       return false;
 541    }
 542
 543    if (log != NULL)
 544    {
 545       msg.str("");
 546       ioprintf(msg, "[%s]\n",ident.c_str());
 547       log->Update(msg.str());
 548    }
 549
 550    // Read the database
 551    Configuration Database;
 552    string DFile = _config->FindFile("Dir::State::cdroms");
 553    if (FileExists(DFile) == true)
 554    {
 555       if (ReadConfigFile(Database,DFile) == false)
 556          return _error->Error("Unable to read the cdrom database %s",
 557                               DFile.c_str());
 558    }
 559    if (log != NULL)
 560    {
 561       msg.str("");
 562       ioprintf(msg, _("Stored label: %s\n"),
 563       Database.Find("CD::"+ident).c_str());
 564       log->Update(msg.str());
 565    }
 566
 567    // Unmount and finish
 568    if (_config->FindB("APT::CDROM::NoMount",false) == false)
 569    {
 570       if (log != NULL)
 571          log->Update(_("Unmounting CD-ROM...\n"), STEP_LAST);
 572       UnmountCdrom(CDROM);
 573    }
 574
 575    return true;
 576 }
 577                                                                         /*}}}*/
 578 bool pkgCdrom::Add(pkgCdromStatus *log)                                 /*{{{*/
 579 {
 580    stringstream msg;
 581
 582    // Startup
 583    string CDROM = _config->FindDir("Acquire::cdrom::mount");
 584    if (CDROM[0] == '.')
 585       CDROM= SafeGetCWD() + '/' + CDROM;
 586
 587    if(log != NULL)
 588    {
 589       log->SetTotal(STEP_LAST);
 590       msg.str("");
 591       ioprintf(msg, _("Using CD-ROM mount point %s\n"), CDROM.c_str());
 592       log->Update(msg.str(), STEP_PREPARE);
 593    }
 594
 595    // Read the database
 596    Configuration Database;
 597    string DFile = _config->FindFile("Dir::State::cdroms");
 598    if (FileExists(DFile) == true)
 599    {
 600       if (ReadConfigFile(Database,DFile) == false)
 601          return _error->Error("Unable to read the cdrom database %s",
 602                               DFile.c_str());
 603    }
 604
 605    // Unmount the CD and get the user to put in the one they want
 606    if (_config->FindB("APT::CDROM::NoMount",false) == false)
 607    {
 608       if(log != NULL)
 609          log->Update(_("Unmounting CD-ROM\n"), STEP_UNMOUNT);
 610       UnmountCdrom(CDROM);
 611
 612       if(log != NULL)
 613       {
 614          log->Update(_("Waiting for disc...\n"), STEP_WAIT);
 615          if(!log->ChangeCdrom()) {
 616             // user aborted
 617             return false;
 618          }
 619       }
 620
 621       // Mount the new CDROM
 622       if(log != NULL)
 623          log->Update(_("Mounting CD-ROM...\n"), STEP_MOUNT);
 624
 625       if (MountCdrom(CDROM) == false)
 626          return _error->Error("Failed to mount the cdrom.");
 627    }
 628
 629    // Hash the CD to get an ID
 630    if(log != NULL)
 631       log->Update(_("Identifying.. "), STEP_IDENT);
 632    string ID;
 633    if (IdentCdrom(CDROM,ID) == false)
 634    {
 635       if (log != NULL)
 636          log->Update("\n");
 637       return false;
 638    }
 639    if(log != NULL)
 640    {
 641       log->Update("["+ID+"]\n");
 642       log->Update(_("Scanning disc for index files..\n"),STEP_SCAN);
 643    }
 644
 645    // Get the CD structure
 646    vector<string> List;
 647    vector<string> SourceList;
 648    vector<string> SigList;
 649    vector<string> TransList;
 650    string StartDir = SafeGetCWD();
 651    string InfoDir;
 652    if (FindPackages(CDROM,List,SourceList, SigList,TransList,InfoDir,log) == false)
 653    {
 654       if (log != NULL)
 655          log->Update("\n");
 656       return false;
 657    }
 658
 659    chdir(StartDir.c_str());
 660
 661    if (_config->FindB("Debug::aptcdrom",false) == true)
 662    {
 663       cout << "I found (binary):" << endl;
 664       for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 665          cout << *I << endl;
 666       cout << "I found (source):" << endl;
 667       for (vector<string>::iterator I = SourceList.begin(); I != SourceList.end(); ++I)
 668          cout << *I << endl;
 669       cout << "I found (Signatures):" << endl;
 670       for (vector<string>::iterator I = SigList.begin(); I != SigList.end(); ++I)
 671          cout << *I << endl;
 672    }
 673
 674    //log->Update(_("Cleaning package lists..."), STEP_CLEAN);
 675
 676    // Fix up the list
 677    DropBinaryArch(List);
 678    DropRepeats(List,"Packages");
 679    DropRepeats(SourceList,"Sources");
 680    DropRepeats(SigList,"Release.gpg");
 681    DropRepeats(TransList,"");
 682    if(log != NULL) {
 683       msg.str("");
 684       ioprintf(msg, _("Found %zu package indexes, %zu source indexes, "
 685                       "%zu translation indexes and %zu signatures\n"),
 686                List.size(), SourceList.size(), TransList.size(),
 687                SigList.size());
 688       log->Update(msg.str(), STEP_SCAN);
 689    }
 690
 691    if (List.empty() == true && SourceList.empty() == true)
 692    {
 693       if (_config->FindB("APT::CDROM::NoMount",false) == false)
 694          UnmountCdrom(CDROM);
 695       return _error->Error(_("Unable to locate any package files, perhaps this is not a Debian Disc or the wrong architecture?"));
 696    }
 697
 698    // Check if the CD is in the database
 699    string Name;
 700    if (Database.Exists("CD::" + ID) == false ||
 701        _config->FindB("APT::CDROM::Rename",false) == true)
 702    {
 703       // Try to use the CDs label if at all possible
 704       if (InfoDir.empty() == false &&
 705           FileExists(InfoDir + "/info") == true)
 706       {
 707          ifstream F(string(InfoDir + "/info").c_str());
 708          if (!F == 0)
 709             getline(F,Name);
 710
 711          if (Name.empty() == false)
 712          {
 713             // Escape special characters
 714             string::iterator J = Name.begin();
 715             for (; J != Name.end(); ++J)
 716                if (*J == '"' || *J == ']' || *J == '[')
 717                   *J = '_';
 718
 719             if(log != NULL)
 720             {
 721                msg.str("");
 722                ioprintf(msg, _("Found label '%s'\n"), Name.c_str());
 723                log->Update(msg.str());
 724             }
 725             Database.Set("CD::" + ID + "::Label",Name);
 726          }
 727       }
 728
 729       if (_config->FindB("APT::CDROM::Rename",false) == true ||
 730           Name.empty() == true)
 731       {
 732          if(log == NULL)
 733          {
 734             if (_config->FindB("APT::CDROM::NoMount",false) == false)
 735                UnmountCdrom(CDROM);
 736             return _error->Error("No disc name found and no way to ask for it");
 737          }
 738
 739          while(true) {
 740             if(!log->AskCdromName(Name)) {
 741                // user canceld
 742                return false;
 743             }
 744             cout << "Name: '" << Name << "'" << endl;
 745
 746             if (Name.empty() == false &&
 747                 Name.find('"') == string::npos &&
 748                 Name.find('[') == string::npos &&
 749                 Name.find(']') == string::npos)
 750                break;
 751             log->Update(_("That is not a valid name, try again.\n"));
 752          }
 753       }
 754    }
 755    else
 756       Name = Database.Find("CD::" + ID);
 757
 758    // Escape special characters
 759    string::iterator J = Name.begin();
 760    for (; J != Name.end(); ++J)
 761       if (*J == '"' || *J == ']' || *J == '[')
 762          *J = '_';
 763
 764    Database.Set("CD::" + ID,Name);
 765    if(log != NULL)
 766    {
 767       msg.str("");
 768       ioprintf(msg, _("This disc is called: \n'%s'\n"), Name.c_str());
 769       log->Update(msg.str());
 770       log->Update(_("Copying package lists..."), STEP_COPY);
 771    }
 772    // take care of the signatures and copy them if they are ok
 773    // (we do this before PackageCopy as it modifies "List" and "SourceList")
 774    SigVerify SignVerify;
 775    SignVerify.CopyAndVerify(CDROM, Name, SigList, List, SourceList);
 776
 777    // Copy the package files to the state directory
 778    PackageCopy Copy;
 779    SourceCopy SrcCopy;
 780    TranslationsCopy TransCopy;
 781    if (Copy.CopyPackages(CDROM,Name,List, log) == false ||
 782        SrcCopy.CopyPackages(CDROM,Name,SourceList, log) == false ||
 783        TransCopy.CopyTranslations(CDROM,Name,TransList, log) == false)
 784       return false;
 785
 786    // reduce the List so that it takes less space in sources.list
 787    ReduceSourcelist(CDROM,List);
 788    ReduceSourcelist(CDROM,SourceList);
 789
 790    // Write the database and sourcelist
 791    if (_config->FindB("APT::cdrom::NoAct",false) == false)
 792    {
 793       if (WriteDatabase(Database) == false)
 794          return false;
 795
 796       if(log != NULL)
 797          log->Update(_("Writing new source list\n"), STEP_WRITE);
 798       if (WriteSourceList(Name,List,false) == false ||
 799           WriteSourceList(Name,SourceList,true) == false)
 800          return false;
 801    }
 802
 803    // Print the sourcelist entries
 804    if(log != NULL)
 805       log->Update(_("Source list entries for this disc are:\n"));
 806
 807    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 808    {
 809       string::size_type Space = (*I).find(' ');
 810       if (Space == string::npos)
 811       {
 812          if (_config->FindB("APT::CDROM::NoMount",false) == false)
 813             UnmountCdrom(CDROM);
 814          return _error->Error("Internal error");
 815       }
 816
 817       if(log != NULL)
 818       {
 819          msg.str("");
 820          msg << "deb cdrom:[" << Name << "]/" << string(*I,0,Space) <<
 821             " " << string(*I,Space+1) << endl;
 822          log->Update(msg.str());
 823       }
 824    }
 825
 826    for (vector<string>::iterator I = SourceList.begin(); I != SourceList.end(); ++I)
 827    {
 828       string::size_type Space = (*I).find(' ');
 829       if (Space == string::npos)
 830       {
 831          if (_config->FindB("APT::CDROM::NoMount",false) == false)
 832             UnmountCdrom(CDROM);
 833          return _error->Error("Internal error");
 834       }
 835
 836       if(log != NULL) {
 837          msg.str("");
 838          msg << "deb-src cdrom:[" << Name << "]/" << string(*I,0,Space) <<
 839             " " << string(*I,Space+1) << endl;
 840          log->Update(msg.str());
 841       }
 842    }
 843
 844    // Unmount and finish
 845    if (_config->FindB("APT::CDROM::NoMount",false) == false) {
 846       if (log != NULL)
 847          log->Update(_("Unmounting CD-ROM...\n"), STEP_LAST);
 848       UnmountCdrom(CDROM);
 849    }
 850
 851    return true;
 852 }
 853                                                                         /*}}}*/
 854 pkgUdevCdromDevices::pkgUdevCdromDevices()                              /*{{{*/
 855    : libudev_handle(NULL)
 856 {
 857
 858 }
 859                                                                         /*}}}*/
 860
 861 bool
 862 pkgUdevCdromDevices::Dlopen()                                           /*{{{*/
 863 {
 864    // alread open
 865    if(libudev_handle != NULL)
 866       return true;
 867
 868    // see if we can get libudev
 869    void *h = ::dlopen("libudev.so.0", RTLD_LAZY);
 870    if(h == NULL)
 871       return false;
 872
 873    // get the pointers to the udev structs
 874    libudev_handle = h;
 875    udev_new = (udev* (*)(void)) dlsym(h, "udev_new");
 876    udev_enumerate_add_match_property = (int (*)(udev_enumerate*, const char*, const char*))dlsym(h, "udev_enumerate_add_match_property");
 877 #if 0 // FIXME: uncomment on next ABI break
 878    udev_enumerate_add_match_sysattr = (int (*)(udev_enumerate*, const char*, const char*))dlsym(h, "udev_enumerate_add_match_sysattr");
 879 #endif
 880    udev_enumerate_scan_devices = (int (*)(udev_enumerate*))dlsym(h, "udev_enumerate_scan_devices");
 881    udev_enumerate_get_list_entry = (udev_list_entry* (*)(udev_enumerate*))dlsym(h, "udev_enumerate_get_list_entry");
 882    udev_device_new_from_syspath = (udev_device* (*)(udev*, const char*))dlsym(h, "udev_device_new_from_syspath");
 883    udev_enumerate_get_udev = (udev* (*)(udev_enumerate*))dlsym(h, "udev_enumerate_get_udev");
 884    udev_list_entry_get_name = (const char* (*)(udev_list_entry*))dlsym(h, "udev_list_entry_get_name");
 885    udev_device_get_devnode = (const char* (*)(udev_device*))dlsym(h, "udev_device_get_devnode");
 886    udev_enumerate_new = (udev_enumerate* (*)(udev*))dlsym(h, "udev_enumerate_new");
 887    udev_list_entry_get_next = (udev_list_entry* (*)(udev_list_entry*))dlsym(h, "udev_list_entry_get_next");
 888    udev_device_get_property_value = (const char* (*)(udev_device *, const char *))dlsym(h, "udev_device_get_property_value");
 889
 890    return true;
 891 }
 892                                                                         /*}}}*/
 893
 894                                                                         /*{{{*/
 895 // compatiblity only with the old API/ABI, can be removed on the next
 896 // ABI break
 897 vector<CdromDevice>
 898 pkgUdevCdromDevices::Scan()
 899 {
 900    bool CdromOnly = _config->FindB("APT::cdrom::CdromOnly", true);
 901    return ScanForRemovable(CdromOnly);
 902 };
 903                                                                         /*}}}*/
 904                                                                         /*{{{*/
 905 vector<CdromDevice>
 906 pkgUdevCdromDevices::ScanForRemovable(bool CdromOnly)
 907 {
 908    vector<CdromDevice> cdrom_devices;
 909    struct udev_enumerate *enumerate;
 910    struct udev_list_entry *l, *devices;
 911    struct udev *udev_ctx;
 912
 913    if(libudev_handle == NULL)
 914       return cdrom_devices;
 915
 916    udev_ctx = udev_new();
 917    enumerate = udev_enumerate_new (udev_ctx);
 918    if (CdromOnly)
 919       udev_enumerate_add_match_property(enumerate, "ID_CDROM", "1");
 920    else {
 921 #if 1 // FIXME: remove the next two lines on the next ABI break
 922       int (*udev_enumerate_add_match_sysattr)(struct udev_enumerate *udev_enumerate, const char *property, const char *value);
 923       udev_enumerate_add_match_sysattr = (int (*)(udev_enumerate*, const char*, const char*))dlsym(libudev_handle, "udev_enumerate_add_match_sysattr");
 924 #endif
 925       udev_enumerate_add_match_sysattr(enumerate, "removable", "1");
 926    }
 927
 928    udev_enumerate_scan_devices (enumerate);
 929    devices = udev_enumerate_get_list_entry (enumerate);
 930    for (l = devices; l != NULL; l = udev_list_entry_get_next (l))
 931    {
 932       CdromDevice cdrom;
 933       struct udev_device *udevice;
 934       udevice = udev_device_new_from_syspath (udev_enumerate_get_udev (enumerate), udev_list_entry_get_name (l));
 935       if (udevice == NULL)
 936          continue;
 937       const char* devnode = udev_device_get_devnode(udevice);
 938
 939       // try fstab_dir first
 940       string mountpath;
 941       const char* mp = udev_device_get_property_value(udevice, "FSTAB_DIR");
 942       if (mp)
 943          mountpath = string(mp);
 944       else
 945          mountpath = FindMountPointForDevice(devnode);
 946
 947       // fill in the struct
 948       cdrom.DeviceName = string(devnode);
 949       if (mountpath != "") {
 950          cdrom.MountPath = mountpath;
 951          string s = string(mountpath);
 952          cdrom.Mounted = IsMounted(s);
 953       } else {
 954          cdrom.Mounted = false;
 955          cdrom.MountPath = "";
 956       }
 957       cdrom_devices.push_back(cdrom);
 958    }
 959    return cdrom_devices;
 960 }
 961                                                                         /*}}}*/
 962
 963 pkgUdevCdromDevices::~pkgUdevCdromDevices()                             /*{{{*/
 964 {
 965    if (libudev_handle != NULL)
 966       dlclose(libudev_handle);
 967 }
 968                                                                         /*}}}*/