apt-pkg/indexcopy.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: indexcopy.cc,v 1.10 2002/03/26 07:38:58 jgg Exp $
   4 /* ######################################################################
   5
   6    Index Copying - Aid for copying and verifying the index files
   7
   8    This class helps apt-cache reconstruct a damaged index files.
   9
  10    ##################################################################### */
  11                                                                         /*}}}*/
  12 // Include Files                                                        /*{{{*/
  13 #include<config.h>
  14
  15 #include <apt-pkg/error.h>
  16 #include <apt-pkg/progress.h>
  17 #include <apt-pkg/strutl.h>
  18 #include <apt-pkg/fileutl.h>
  19 #include <apt-pkg/aptconfiguration.h>
  20 #include <apt-pkg/configuration.h>
  21 #include <apt-pkg/tagfile.h>
  22 #include <apt-pkg/indexrecords.h>
  23 #include <apt-pkg/cdrom.h>
  24 #include <apt-pkg/gpgv.h>
  25 #include <apt-pkg/hashes.h>
  26
  27 #include <iostream>
  28 #include <sstream>
  29 #include <unistd.h>
  30 #include <sys/stat.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 #include "indexcopy.h"
  36 #include <apti18n.h>
  37                                                                         /*}}}*/
  38
  39 using namespace std;
  40
  41 // IndexCopy::CopyPackages - Copy the package files from the CD         /*{{{*/
  42 // ---------------------------------------------------------------------
  43 /* */
  44 bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List,
  45                              pkgCdromStatus *log)
  46 {
  47    OpProgress *Progress = NULL;
  48    if (List.empty() == true)
  49       return true;
  50
  51    if(log)
  52       Progress = log->GetOpProgress();
  53
  54    bool NoStat = _config->FindB("APT::CDROM::Fast",false);
  55    bool Debug = _config->FindB("Debug::aptcdrom",false);
  56
  57    // Prepare the progress indicator
  58    off_t TotalSize = 0;
  59    std::vector<APT::Configuration::Compressor> const compressor = APT::Configuration::getCompressors();
  60    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
  61    {
  62       struct stat Buf;
  63       bool found = false;
  64       std::string file = std::string(*I).append(GetFileName());
  65       for (std::vector<APT::Configuration::Compressor>::const_iterator c = compressor.begin();
  66            c != compressor.end(); ++c)
  67       {
  68          if (stat((file + c->Extension).c_str(), &Buf) != 0)
  69             continue;
  70          found = true;
  71          break;
  72       }
  73
  74       if (found == false)
  75          return _error->Errno("stat", "Stat failed for %s", file.c_str());
  76       TotalSize += Buf.st_size;
  77    }
  78
  79    off_t CurrentSize = 0;
  80    unsigned int NotFound = 0;
  81    unsigned int WrongSize = 0;
  82    unsigned int Packages = 0;
  83    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
  84    {
  85       string OrigPath = string(*I,CDROM.length());
  86
  87       // Open the package file
  88       FileFd Pkg(*I + GetFileName(), FileFd::ReadOnly, FileFd::Auto);
  89       off_t const FileSize = Pkg.Size();
  90
  91       pkgTagFile Parser(&Pkg);
  92       if (_error->PendingError() == true)
  93          return false;
  94
  95       // Open the output file
  96       char S[400];
  97       snprintf(S,sizeof(S),"cdrom:[%s]/%s%s",Name.c_str(),
  98                (*I).c_str() + CDROM.length(),GetFileName());
  99       string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
 100       TargetF += URItoFileName(S);
 101       FileFd Target;
 102       if (_config->FindB("APT::CDROM::NoAct",false) == true)
 103       {
 104          TargetF = "/dev/null";
 105          Target.Open(TargetF,FileFd::WriteExists);
 106       } else {
 107          Target.Open(TargetF,FileFd::WriteAtomic);
 108       }
 109       if (_error->PendingError() == true)
 110          return false;
 111
 112       // Setup the progress meter
 113       if(Progress)
 114          Progress->OverallProgress(CurrentSize,TotalSize,FileSize,
 115                                    string("Reading ") + Type() + " Indexes");
 116
 117       // Parse
 118       if(Progress)
 119          Progress->SubProgress(Pkg.Size());
 120       pkgTagSection Section;
 121       this->Section = &Section;
 122       string Prefix;
 123       unsigned long Hits = 0;
 124       unsigned long Chop = 0;
 125       while (Parser.Step(Section) == true)
 126       {
 127          if(Progress)
 128             Progress->Progress(Parser.Offset());
 129          string File;
 130          unsigned long long Size;
 131          if (GetFile(File,Size) == false)
 132             return false;
 133
 134          if (Chop != 0)
 135             File = OrigPath + ChopDirs(File,Chop);
 136
 137          // See if the file exists
 138          if (NoStat == false || Hits < 10)
 139          {
 140             // Attempt to fix broken structure
 141             if (Hits == 0)
 142             {
 143                if (ReconstructPrefix(Prefix,OrigPath,CDROM,File) == false &&
 144                    ReconstructChop(Chop,*I,File) == false)
 145                {
 146                   if (Debug == true)
 147                      clog << "Missed: " << File << endl;
 148                   NotFound++;
 149                   continue;
 150                }
 151                if (Chop != 0)
 152                   File = OrigPath + ChopDirs(File,Chop);
 153             }
 154
 155             // Get the size
 156             struct stat Buf;
 157             if (stat((CDROM + Prefix + File).c_str(),&Buf) != 0 ||
 158                 Buf.st_size == 0)
 159             {
 160                bool Mangled = false;
 161                // Attempt to fix busted symlink support for one instance
 162                string OrigFile = File;
 163                string::size_type Start = File.find("binary-");
 164                string::size_type End = File.find("/",Start+3);
 165                if (Start != string::npos && End != string::npos)
 166                {
 167                   File.replace(Start,End-Start,"binary-all");
 168                   Mangled = true;
 169                }
 170
 171                if (Mangled == false ||
 172                    stat((CDROM + Prefix + File).c_str(),&Buf) != 0)
 173                {
 174                   if (Debug == true)
 175                      clog << "Missed(2): " << OrigFile << endl;
 176                   NotFound++;
 177                   continue;
 178                }
 179             }
 180
 181             // Size match
 182             if ((unsigned long long)Buf.st_size != Size)
 183             {
 184                if (Debug == true)
 185                   clog << "Wrong Size: " << File << endl;
 186                WrongSize++;
 187                continue;
 188             }
 189          }
 190
 191          Packages++;
 192          Hits++;
 193
 194          if (RewriteEntry(Target, File) == false)
 195             return false;
 196       }
 197
 198       if (Debug == true)
 199          cout << " Processed by using Prefix '" << Prefix << "' and chop " << Chop << endl;
 200
 201       if (_config->FindB("APT::CDROM::NoAct",false) == false)
 202       {
 203          // Move out of the partial directory
 204          Target.Close();
 205          string FinalF = _config->FindDir("Dir::State::lists");
 206          FinalF += URItoFileName(S);
 207          if (rename(TargetF.c_str(),FinalF.c_str()) != 0)
 208             return _error->Errno("rename","Failed to rename");
 209          ChangeOwnerAndPermissionOfFile("CopyPackages", FinalF.c_str(), "root", "root", 0644);
 210       }
 211
 212       /* Mangle the source to be in the proper notation with
 213          prefix dist [component] */
 214       *I = string(*I,Prefix.length());
 215       ConvertToSourceList(CDROM,*I);
 216       *I = Prefix + ' ' + *I;
 217
 218       CurrentSize += FileSize;
 219    }
 220    if(Progress)
 221       Progress->Done();
 222
 223    // Some stats
 224    if(log) {
 225       stringstream msg;
 226       if(NotFound == 0 && WrongSize == 0)
 227          ioprintf(msg, _("Wrote %i records.\n"), Packages);
 228       else if (NotFound != 0 && WrongSize == 0)
 229          ioprintf(msg, _("Wrote %i records with %i missing files.\n"),
 230                   Packages, NotFound);
 231       else if (NotFound == 0 && WrongSize != 0)
 232          ioprintf(msg, _("Wrote %i records with %i mismatched files\n"),
 233                   Packages, WrongSize);
 234       if (NotFound != 0 && WrongSize != 0)
 235          ioprintf(msg, _("Wrote %i records with %i missing files and %i mismatched files\n"), Packages, NotFound, WrongSize);
 236    }
 237
 238    if (Packages == 0)
 239       _error->Warning("No valid records were found.");
 240
 241    if (NotFound + WrongSize > 10)
 242       _error->Warning("A lot of entries were discarded, something may be wrong.\n");
 243
 244    return true;
 245 }
 246                                                                         /*}}}*/
 247 // IndexCopy::ChopDirs - Chop off the leading directory components      /*{{{*/
 248 // ---------------------------------------------------------------------
 249 /* */
 250 string IndexCopy::ChopDirs(string Path,unsigned int Depth)
 251 {
 252    string::size_type I = 0;
 253    do
 254    {
 255       I = Path.find('/',I+1);
 256       Depth--;
 257    }
 258    while (I != string::npos && Depth != 0);
 259
 260    if (I == string::npos)
 261       return string();
 262
 263    return string(Path,I+1);
 264 }
 265                                                                         /*}}}*/
 266 // IndexCopy::ReconstructPrefix - Fix strange prefixing                 /*{{{*/
 267 // ---------------------------------------------------------------------
 268 /* This prepends dir components from the path to the package files to
 269    the path to the deb until it is found */
 270 bool IndexCopy::ReconstructPrefix(string &Prefix,string OrigPath,string CD,
 271                                   string File)
 272 {
 273    bool Debug = _config->FindB("Debug::aptcdrom",false);
 274    unsigned int Depth = 1;
 275    string MyPrefix = Prefix;
 276    while (1)
 277    {
 278       struct stat Buf;
 279       if (stat((CD + MyPrefix + File).c_str(),&Buf) != 0)
 280       {
 281          if (Debug == true)
 282             cout << "Failed, " << CD + MyPrefix + File << endl;
 283          if (GrabFirst(OrigPath,MyPrefix,Depth++) == true)
 284             continue;
 285
 286          return false;
 287       }
 288       else
 289       {
 290          Prefix = MyPrefix;
 291          return true;
 292       }
 293    }
 294    return false;
 295 }
 296                                                                         /*}}}*/
 297 // IndexCopy::ReconstructChop - Fixes bad source paths                  /*{{{*/
 298 // ---------------------------------------------------------------------
 299 /* This removes path components from the filename and prepends the location
 300    of the package files until a file is found */
 301 bool IndexCopy::ReconstructChop(unsigned long &Chop,string Dir,string File)
 302 {
 303    // Attempt to reconstruct the filename
 304    unsigned long Depth = 0;
 305    while (1)
 306    {
 307       struct stat Buf;
 308       if (stat((Dir + File).c_str(),&Buf) != 0)
 309       {
 310          File = ChopDirs(File,1);
 311          Depth++;
 312          if (File.empty() == false)
 313             continue;
 314          return false;
 315       }
 316       else
 317       {
 318          Chop = Depth;
 319          return true;
 320       }
 321    }
 322    return false;
 323 }
 324                                                                         /*}}}*/
 325 // IndexCopy::ConvertToSourceList - Convert a Path to a sourcelist      /*{{{*/
 326 // ---------------------------------------------------------------------
 327 /* We look for things in dists/ notation and convert them to
 328    <dist> <component> form otherwise it is left alone. This also strips
 329    the CD path.
 330
 331    This implements a regex sort of like:
 332     (.*)/dists/([^/]*)/(.*)/binary-*
 333      ^          ^      ^- Component
 334      |          |-------- Distribution
 335      |------------------- Path
 336
 337    It was deciced to use only a single word for dist (rather than say
 338    unstable/non-us) to increase the chance that each CD gets a single
 339    line in sources.list.
 340  */
 341 void IndexCopy::ConvertToSourceList(string CD,string &Path)
 342 {
 343    // Strip the cdrom base path
 344    Path = string(Path,CD.length());
 345    if (Path.empty() == true)
 346       Path = "/";
 347
 348    // Too short to be a dists/ type
 349    if (Path.length() < strlen("dists/"))
 350       return;
 351
 352    // Not a dists type.
 353    if (stringcmp(Path.c_str(),Path.c_str()+strlen("dists/"),"dists/") != 0)
 354       return;
 355
 356    // Isolate the dist
 357    string::size_type Slash = strlen("dists/");
 358    string::size_type Slash2 = Path.find('/',Slash + 1);
 359    if (Slash2 == string::npos || Slash2 + 2 >= Path.length())
 360       return;
 361    string Dist = string(Path,Slash,Slash2 - Slash);
 362
 363    // Isolate the component
 364    Slash = Slash2;
 365    for (unsigned I = 0; I != 10; I++)
 366    {
 367       Slash = Path.find('/',Slash+1);
 368       if (Slash == string::npos || Slash + 2 >= Path.length())
 369          return;
 370       string Comp = string(Path,Slash2+1,Slash - Slash2-1);
 371
 372       // Verify the trailing binary- bit
 373       string::size_type BinSlash = Path.find('/',Slash + 1);
 374       if (Slash == string::npos)
 375          return;
 376       string Binary = string(Path,Slash+1,BinSlash - Slash-1);
 377
 378       if (strncmp(Binary.c_str(), "binary-", strlen("binary-")) == 0)
 379       {
 380          Binary.erase(0, strlen("binary-"));
 381          if (APT::Configuration::checkArchitecture(Binary) == false)
 382             continue;
 383       }
 384       else if (Binary != "source")
 385          continue;
 386
 387       Path = Dist + ' ' + Comp;
 388       return;
 389    }
 390 }
 391                                                                         /*}}}*/
 392 // IndexCopy::GrabFirst - Return the first Depth path components        /*{{{*/
 393 // ---------------------------------------------------------------------
 394 /* */
 395 bool IndexCopy::GrabFirst(string Path,string &To,unsigned int Depth)
 396 {
 397    string::size_type I = 0;
 398    do
 399    {
 400       I = Path.find('/',I+1);
 401       Depth--;
 402    }
 403    while (I != string::npos && Depth != 0);
 404
 405    if (I == string::npos)
 406       return false;
 407
 408    To = string(Path,0,I+1);
 409    return true;
 410 }
 411                                                                         /*}}}*/
 412 // PackageCopy::GetFile - Get the file information from the section     /*{{{*/
 413 // ---------------------------------------------------------------------
 414 /* */
 415 bool PackageCopy::GetFile(string &File,unsigned long long &Size)
 416 {
 417    File = Section->FindS("Filename");
 418    Size = Section->FindI("Size");
 419    if (File.empty() || Size == 0)
 420       return _error->Error("Cannot find filename or size tag");
 421    return true;
 422 }
 423                                                                         /*}}}*/
 424 // PackageCopy::RewriteEntry - Rewrite the entry with a new filename    /*{{{*/
 425 bool PackageCopy::RewriteEntry(FileFd &Target,string const &File)
 426 {
 427    string const Dir(File,0,File.rfind('/'));
 428    std::vector<pkgTagSection::Tag> Changes;
 429    Changes.push_back(pkgTagSection::Tag::Rewrite("Filename", File));
 430
 431    if (Section->Write(Target, TFRewritePackageOrder, Changes) == false)
 432       return false;
 433    return Target.Write("\n", 1);
 434 }
 435                                                                         /*}}}*/
 436 // SourceCopy::GetFile - Get the file information from the section      /*{{{*/
 437 // ---------------------------------------------------------------------
 438 /* */
 439 bool SourceCopy::GetFile(string &File,unsigned long long &Size)
 440 {
 441    string Files = Section->FindS("Files");
 442    if (Files.empty() == true)
 443       return false;
 444
 445    // Stash the / terminated directory prefix
 446    string Base = Section->FindS("Directory");
 447    if (Base.empty() == false && Base[Base.length()-1] != '/')
 448       Base += '/';
 449
 450    // Read the first file triplet
 451    const char *C = Files.c_str();
 452    string sSize;
 453    string MD5Hash;
 454
 455    // Parse each of the elements
 456    if (ParseQuoteWord(C,MD5Hash) == false ||
 457        ParseQuoteWord(C,sSize) == false ||
 458        ParseQuoteWord(C,File) == false)
 459       return _error->Error("Error parsing file record");
 460
 461    // Parse the size and append the directory
 462    Size = strtoull(sSize.c_str(), NULL, 10);
 463    File = Base + File;
 464    return true;
 465 }
 466                                                                         /*}}}*/
 467 // SourceCopy::RewriteEntry - Rewrite the entry with a new filename     /*{{{*/
 468 bool SourceCopy::RewriteEntry(FileFd &Target, std::string const &File)
 469 {
 470    string const Dir(File,0,File.rfind('/'));
 471    std::vector<pkgTagSection::Tag> Changes;
 472    Changes.push_back(pkgTagSection::Tag::Rewrite("Directory", Dir));
 473
 474    if (Section->Write(Target, TFRewriteSourceOrder, Changes) == false)
 475       return false;
 476    return Target.Write("\n", 1);
 477 }
 478                                                                         /*}}}*/
 479 // SigVerify::Verify - Verify a files md5sum against its metaindex      /*{{{*/
 480 bool SigVerify::Verify(string prefix, string file, indexRecords *MetaIndex)
 481 {
 482    const indexRecords::checkSum *Record = MetaIndex->Lookup(file);
 483    bool const Debug = _config->FindB("Debug::aptcdrom",false);
 484
 485    // we skip non-existing files in the verifcation of the Release file
 486    // as non-existing files do not harm, but a warning scares people and
 487    // makes it hard to strip unneeded files from an ISO like uncompressed
 488    // indexes as it is done on the mirrors (see also LP: #255545 )
 489    if(!RealFileExists(prefix+file))
 490    {
 491       if (Debug == true)
 492          cout << "Skipping nonexistent in " << prefix << " file " << file << std::endl;
 493       return true;
 494    }
 495
 496    if (!Record)
 497    {
 498       _error->Warning(_("Can't find authentication record for: %s"), file.c_str());
 499       return false;
 500    }
 501
 502    if (!Record->Hashes.VerifyFile(prefix+file))
 503    {
 504       _error->Warning(_("Hash mismatch for: %s"),file.c_str());
 505       return false;
 506    }
 507
 508    if(Debug == true)
 509    {
 510       cout << "File: " << prefix+file << endl
 511          << "Expected Hash " << endl;
 512       for (HashStringList::const_iterator hs = Record->Hashes.begin(); hs != Record->Hashes.end(); ++hs)
 513          std::cout <<  "\t- " << hs->toStr() << std::endl;
 514    }
 515
 516    return true;
 517 }
 518                                                                         /*}}}*/
 519 bool SigVerify::CopyMetaIndex(string CDROM, string CDName,              /*{{{*/
 520                               string prefix, string file)
 521 {
 522       char S[400];
 523       snprintf(S,sizeof(S),"cdrom:[%s]/%s%s",CDName.c_str(),
 524                (prefix).c_str() + CDROM.length(),file.c_str());
 525       string TargetF = _config->FindDir("Dir::State::lists");
 526       TargetF += URItoFileName(S);
 527
 528       FileFd Target;
 529       FileFd Rel;
 530       Target.Open(TargetF,FileFd::WriteAtomic);
 531       Rel.Open(prefix + file,FileFd::ReadOnly);
 532       if (CopyFile(Rel,Target) == false || Target.Close() == false)
 533          return _error->Error("Copying of '%s' for '%s' from '%s' failed", file.c_str(), CDName.c_str(), prefix.c_str());
 534       ChangeOwnerAndPermissionOfFile("CopyPackages", TargetF.c_str(), "root", "root", 0644);
 535
 536       return true;
 537 }
 538                                                                         /*}}}*/
 539 bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList, /*{{{*/
 540                               vector<string> /*PkgList*/,vector<string> /*SrcList*/)
 541 {
 542    if (SigList.empty() == true)
 543       return true;
 544
 545    bool Debug = _config->FindB("Debug::aptcdrom",false);
 546
 547    // Read all Release files
 548    for (vector<string>::iterator I = SigList.begin(); I != SigList.end(); ++I)
 549    {
 550       if(Debug)
 551          cout << "Signature verify for: " << *I << endl;
 552
 553       indexRecords *MetaIndex = new indexRecords;
 554       string prefix = *I;
 555
 556       string const releasegpg = *I+"Release.gpg";
 557       string const release = *I+"Release";
 558       string const inrelease = *I+"InRelease";
 559       bool useInRelease = true;
 560
 561       // a Release.gpg without a Release should never happen
 562       if (RealFileExists(inrelease) == true)
 563          ;
 564       else if(RealFileExists(release) == false || RealFileExists(releasegpg) == false)
 565       {
 566          delete MetaIndex;
 567          continue;
 568       }
 569       else
 570          useInRelease = false;
 571
 572       pid_t pid = ExecFork();
 573       if(pid < 0) {
 574          _error->Error("Fork failed");
 575          return false;
 576       }
 577       if(pid == 0)
 578       {
 579          if (useInRelease == true)
 580             ExecGPGV(inrelease, inrelease);
 581          else
 582             ExecGPGV(release, releasegpg);
 583       }
 584
 585       if(!ExecWait(pid, "gpgv")) {
 586          _error->Warning("Signature verification failed for: %s",
 587                          (useInRelease ? inrelease.c_str() : releasegpg.c_str()));
 588          // something went wrong, don't copy the Release.gpg
 589          // FIXME: delete any existing gpg file?
 590          delete MetaIndex;
 591          continue;
 592       }
 593
 594       // Open the Release file and add it to the MetaIndex
 595       if(!MetaIndex->Load(release))
 596       {
 597          _error->Error("%s",MetaIndex->ErrorText.c_str());
 598          return false;
 599       }
 600
 601       // go over the Indexfiles and see if they verify
 602       // if so, remove them from our copy of the lists
 603       vector<string> keys = MetaIndex->MetaKeys();
 604       for (vector<string>::iterator I = keys.begin(); I != keys.end(); ++I)
 605       {
 606          if(!Verify(prefix,*I, MetaIndex)) {
 607             // something went wrong, don't copy the Release.gpg
 608             // FIXME: delete any existing gpg file?
 609             _error->Discard();
 610             continue;
 611          }
 612       }
 613
 614       // we need a fresh one for the Release.gpg
 615       delete MetaIndex;
 616
 617       // everything was fine, copy the Release and Release.gpg file
 618       if (useInRelease == true)
 619          CopyMetaIndex(CDROM, Name, prefix, "InRelease");
 620       else
 621       {
 622          CopyMetaIndex(CDROM, Name, prefix, "Release");
 623          CopyMetaIndex(CDROM, Name, prefix, "Release.gpg");
 624       }
 625    }
 626
 627    return true;
 628 }
 629                                                                         /*}}}*/
 630 // SigVerify::RunGPGV - deprecated wrapper calling ExecGPGV             /*{{{*/
 631 APT_NORETURN bool SigVerify::RunGPGV(std::string const &File, std::string const &FileOut,
 632       int const &statusfd, int fd[2]) {
 633    ExecGPGV(File, FileOut, statusfd, fd);
 634 }
 635 APT_NORETURN bool SigVerify::RunGPGV(std::string const &File, std::string const &FileOut,
 636       int const &statusfd) {
 637    ExecGPGV(File, FileOut, statusfd);
 638 }
 639                                                                         /*}}}*/
 640 bool TranslationsCopy::CopyTranslations(string CDROM,string Name,       /*{{{*/
 641                                 vector<string> &List, pkgCdromStatus *log)
 642 {
 643    OpProgress *Progress = NULL;
 644    if (List.empty() == true)
 645       return true;
 646
 647    if(log)
 648       Progress = log->GetOpProgress();
 649
 650    bool Debug = _config->FindB("Debug::aptcdrom",false);
 651
 652    // Prepare the progress indicator
 653    off_t TotalSize = 0;
 654    std::vector<APT::Configuration::Compressor> const compressor = APT::Configuration::getCompressors();
 655    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 656    {
 657       struct stat Buf;
 658       bool found = false;
 659       std::string file = *I;
 660       for (std::vector<APT::Configuration::Compressor>::const_iterator c = compressor.begin();
 661            c != compressor.end(); ++c)
 662       {
 663          if (stat((file + c->Extension).c_str(), &Buf) != 0)
 664             continue;
 665          found = true;
 666          break;
 667       }
 668
 669       if (found == false)
 670          return _error->Errno("stat", "Stat failed for %s", file.c_str());
 671       TotalSize += Buf.st_size;
 672    }
 673
 674    off_t CurrentSize = 0;
 675    unsigned int NotFound = 0;
 676    unsigned int WrongSize = 0;
 677    unsigned int Packages = 0;
 678    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
 679    {
 680       // Open the package file
 681       FileFd Pkg(*I, FileFd::ReadOnly, FileFd::Auto);
 682       off_t const FileSize = Pkg.Size();
 683
 684       pkgTagFile Parser(&Pkg);
 685       if (_error->PendingError() == true)
 686          return false;
 687
 688       // Open the output file
 689       char S[400];
 690       snprintf(S,sizeof(S),"cdrom:[%s]/%s",Name.c_str(),
 691                (*I).c_str() + CDROM.length());
 692       string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
 693       TargetF += URItoFileName(S);
 694       FileFd Target;
 695       if (_config->FindB("APT::CDROM::NoAct",false) == true)
 696       {
 697          TargetF = "/dev/null";
 698          Target.Open(TargetF,FileFd::WriteExists);
 699       } else {
 700          Target.Open(TargetF,FileFd::WriteAtomic);
 701       }
 702       if (_error->PendingError() == true)
 703          return false;
 704
 705       // Setup the progress meter
 706       if(Progress)
 707          Progress->OverallProgress(CurrentSize,TotalSize,FileSize,
 708                                    string("Reading Translation Indexes"));
 709
 710       // Parse
 711       if(Progress)
 712          Progress->SubProgress(Pkg.Size());
 713       pkgTagSection Section;
 714       this->Section = &Section;
 715       string Prefix;
 716       unsigned long Hits = 0;
 717       while (Parser.Step(Section) == true)
 718       {
 719          if(Progress)
 720             Progress->Progress(Parser.Offset());
 721
 722          if (Section.Write(Target) == false || Target.Write("\n", 1) == false)
 723             return false;
 724
 725          Packages++;
 726          Hits++;
 727       }
 728
 729       if (Debug == true)
 730          cout << " Processed by using Prefix '" << Prefix << "' and chop " << endl;
 731
 732       if (_config->FindB("APT::CDROM::NoAct",false) == false)
 733       {
 734          // Move out of the partial directory
 735          Target.Close();
 736          string FinalF = _config->FindDir("Dir::State::lists");
 737          FinalF += URItoFileName(S);
 738          if (rename(TargetF.c_str(),FinalF.c_str()) != 0)
 739             return _error->Errno("rename","Failed to rename");
 740          ChangeOwnerAndPermissionOfFile("CopyTranslations", FinalF.c_str(), "root", "root", 0644);
 741       }
 742
 743       CurrentSize += FileSize;
 744    }
 745    if(Progress)
 746       Progress->Done();
 747
 748    // Some stats
 749    if(log) {
 750       stringstream msg;
 751       if(NotFound == 0 && WrongSize == 0)
 752          ioprintf(msg, _("Wrote %i records.\n"), Packages);
 753       else if (NotFound != 0 && WrongSize == 0)
 754          ioprintf(msg, _("Wrote %i records with %i missing files.\n"),
 755                   Packages, NotFound);
 756       else if (NotFound == 0 && WrongSize != 0)
 757          ioprintf(msg, _("Wrote %i records with %i mismatched files\n"),
 758                   Packages, WrongSize);
 759       if (NotFound != 0 && WrongSize != 0)
 760          ioprintf(msg, _("Wrote %i records with %i missing files and %i mismatched files\n"), Packages, NotFound, WrongSize);
 761    }
 762
 763    if (Packages == 0)
 764       _error->Warning("No valid records were found.");
 765
 766    if (NotFound + WrongSize > 10)
 767       _error->Warning("A lot of entries were discarded, something may be wrong.\n");
 768
 769    return true;
 770 }
 771                                                                         /*}}}*/
 772
 773 APT_CONST IndexCopy::~IndexCopy() {}