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