apt-pkg/deb/dpkgpm.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: dpkgpm.cc,v 1.28 2004/01/27 02:25:01 mdz Exp $
   4 /* ######################################################################
   5
   6    DPKG Package Manager - Provide an interface to dpkg
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 // Includes                                                             /*{{{*/
  11 #include <config.h>
  12
  13 #include <apt-pkg/cachefile.h>
  14 #include <apt-pkg/configuration.h>
  15 #include <apt-pkg/depcache.h>
  16 #include <apt-pkg/dpkgpm.h>
  17 #include <apt-pkg/error.h>
  18 #include <apt-pkg/fileutl.h>
  19 #include <apt-pkg/install-progress.h>
  20 #include <apt-pkg/packagemanager.h>
  21 #include <apt-pkg/pkgrecords.h>
  22 #include <apt-pkg/strutl.h>
  23 #include <apt-pkg/cacheiterators.h>
  24 #include <apt-pkg/macros.h>
  25 #include <apt-pkg/pkgcache.h>
  26
  27 #include <errno.h>
  28 #include <fcntl.h>
  29 #include <grp.h>
  30 #include <pty.h>
  31 #include <pwd.h>
  32 #include <signal.h>
  33 #include <stddef.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <sys/ioctl.h>
  37 #include <sys/select.h>
  38 #include <sys/stat.h>
  39 #include <sys/time.h>
  40 #include <sys/wait.h>
  41 #include <termios.h>
  42 #include <time.h>
  43 #include <unistd.h>
  44 #include <algorithm>
  45 #include <cstring>
  46 #include <iostream>
  47 #include <map>
  48 #include <set>
  49 #include <string>
  50 #include <utility>
  51 #include <vector>
  52
  53 #include <apti18n.h>
  54                                                                         /*}}}*/
  55
  56 using namespace std;
  57
  58 APT_PURE static unsigned int
  59 EnvironmentSize()
  60 {
  61   unsigned int size = 0;
  62   char **envp = environ;
  63
  64   while (*envp != NULL)
  65     size += strlen (*envp++) + 1;
  66
  67   return size;
  68 }
  69
  70 class pkgDPkgPMPrivate
  71 {
  72 public:
  73    pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0),
  74                         term_out(NULL), history_out(NULL),
  75                         progress(NULL), tt_is_valid(false), master(-1),
  76                         slave(NULL), protect_slave_from_dying(-1),
  77                         direct_stdin(false)
  78    {
  79       dpkgbuf[0] = '\0';
  80    }
  81    ~pkgDPkgPMPrivate()
  82    {
  83    }
  84    bool stdin_is_dev_null;
  85    // the buffer we use for the dpkg status-fd reading
  86    char dpkgbuf[1024];
  87    int dpkgbuf_pos;
  88    FILE *term_out;
  89    FILE *history_out;
  90    string dpkg_error;
  91    APT::Progress::PackageManager *progress;
  92
  93    // pty stuff
  94    struct termios tt;
  95    bool tt_is_valid;
  96    int master;
  97    char * slave;
  98    int protect_slave_from_dying;
  99
 100    // signals
 101    sigset_t sigmask;
 102    sigset_t original_sigmask;
 103
 104    bool direct_stdin;
 105 };
 106
 107 namespace
 108 {
 109   // Maps the dpkg "processing" info to human readable names.  Entry 0
 110   // of each array is the key, entry 1 is the value.
 111   const std::pair<const char *, const char *> PackageProcessingOps[] = {
 112     std::make_pair("install",   N_("Installing %s")),
 113     std::make_pair("configure", N_("Configuring %s")),
 114     std::make_pair("remove",    N_("Removing %s")),
 115     std::make_pair("purge",    N_("Completely removing %s")),
 116     std::make_pair("disappear", N_("Noting disappearance of %s")),
 117     std::make_pair("trigproc",  N_("Running post-installation trigger %s"))
 118   };
 119
 120   const std::pair<const char *, const char *> * const PackageProcessingOpsBegin = PackageProcessingOps;
 121   const std::pair<const char *, const char *> * const PackageProcessingOpsEnd   = PackageProcessingOps + sizeof(PackageProcessingOps) / sizeof(PackageProcessingOps[0]);
 122
 123   // Predicate to test whether an entry in the PackageProcessingOps
 124   // array matches a string.
 125   class MatchProcessingOp
 126   {
 127     const char *target;
 128
 129   public:
 130     MatchProcessingOp(const char *the_target)
 131       : target(the_target)
 132     {
 133     }
 134
 135     bool operator()(const std::pair<const char *, const char *> &pair) const
 136     {
 137       return strcmp(pair.first, target) == 0;
 138     }
 139   };
 140 }
 141
 142 /* helper function to ionice the given PID
 143
 144  there is no C header for ionice yet - just the syscall interface
 145  so we use the binary from util-linux
 146 */
 147 static bool
 148 ionice(int PID)
 149 {
 150    if (!FileExists("/usr/bin/ionice"))
 151       return false;
 152    pid_t Process = ExecFork();
 153    if (Process == 0)
 154    {
 155       char buf[32];
 156       snprintf(buf, sizeof(buf), "-p%d", PID);
 157       const char *Args[4];
 158       Args[0] = "/usr/bin/ionice";
 159       Args[1] = "-c3";
 160       Args[2] = buf;
 161       Args[3] = 0;
 162       execv(Args[0], (char **)Args);
 163    }
 164    return ExecWait(Process, "ionice");
 165 }
 166
 167 static std::string getDpkgExecutable()
 168 {
 169    string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
 170    string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
 171    size_t dpkgChrootLen = dpkgChrootDir.length();
 172    if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
 173    {
 174       if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
 175          --dpkgChrootLen;
 176       Tmp = Tmp.substr(dpkgChrootLen);
 177    }
 178    return Tmp;
 179 }
 180
 181 // dpkgChrootDirectory - chrooting for dpkg if needed                   /*{{{*/
 182 static void dpkgChrootDirectory()
 183 {
 184    std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
 185    if (chrootDir == "/")
 186       return;
 187    std::cerr << "Chrooting into " << chrootDir << std::endl;
 188    if (chroot(chrootDir.c_str()) != 0)
 189       _exit(100);
 190    if (chdir("/") != 0)
 191       _exit(100);
 192 }
 193                                                                         /*}}}*/
 194
 195
 196 // FindNowVersion - Helper to find a Version in "now" state     /*{{{*/
 197 // ---------------------------------------------------------------------
 198 /* This is helpful when a package is no longer installed but has residual
 199  * config files
 200  */
 201 static
 202 pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
 203 {
 204    pkgCache::VerIterator Ver;
 205    for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
 206    {
 207       pkgCache::VerFileIterator Vf = Ver.FileList();
 208       pkgCache::PkgFileIterator F = Vf.File();
 209       for (F = Vf.File(); F.end() == false; ++F)
 210       {
 211          if (F && F.Archive())
 212          {
 213             if (strcmp(F.Archive(), "now"))
 214                return Ver;
 215          }
 216       }
 217    }
 218    return Ver;
 219 }
 220                                                                         /*}}}*/
 221
 222 // DPkgPM::pkgDPkgPM - Constructor                                      /*{{{*/
 223 // ---------------------------------------------------------------------
 224 /* */
 225 pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
 226    : pkgPackageManager(Cache), pkgFailures(0), PackagesDone(0), PackagesTotal(0)
 227 {
 228    d = new pkgDPkgPMPrivate();
 229 }
 230                                                                         /*}}}*/
 231 // DPkgPM::pkgDPkgPM - Destructor                                       /*{{{*/
 232 // ---------------------------------------------------------------------
 233 /* */
 234 pkgDPkgPM::~pkgDPkgPM()
 235 {
 236    delete d;
 237 }
 238                                                                         /*}}}*/
 239 // DPkgPM::Install - Install a package                                  /*{{{*/
 240 // ---------------------------------------------------------------------
 241 /* Add an install operation to the sequence list */
 242 bool pkgDPkgPM::Install(PkgIterator Pkg,string File)
 243 {
 244    if (File.empty() == true || Pkg.end() == true)
 245       return _error->Error("Internal Error, No file name for %s",Pkg.FullName().c_str());
 246
 247    // If the filename string begins with DPkg::Chroot-Directory, return the
 248    // substr that is within the chroot so dpkg can access it.
 249    string const chrootdir = _config->FindDir("DPkg::Chroot-Directory","/");
 250    if (chrootdir != "/" && File.find(chrootdir) == 0)
 251    {
 252       size_t len = chrootdir.length();
 253       if (chrootdir.at(len - 1) == '/')
 254         len--;
 255       List.push_back(Item(Item::Install,Pkg,File.substr(len)));
 256    }
 257    else
 258       List.push_back(Item(Item::Install,Pkg,File));
 259
 260    return true;
 261 }
 262                                                                         /*}}}*/
 263 // DPkgPM::Configure - Configure a package                              /*{{{*/
 264 // ---------------------------------------------------------------------
 265 /* Add a configure operation to the sequence list */
 266 bool pkgDPkgPM::Configure(PkgIterator Pkg)
 267 {
 268    if (Pkg.end() == true)
 269       return false;
 270
 271    List.push_back(Item(Item::Configure, Pkg));
 272
 273    // Use triggers for config calls if we configure "smart"
 274    // as otherwise Pre-Depends will not be satisfied, see #526774
 275    if (_config->FindB("DPkg::TriggersPending", false) == true)
 276       List.push_back(Item(Item::TriggersPending, PkgIterator()));
 277
 278    return true;
 279 }
 280                                                                         /*}}}*/
 281 // DPkgPM::Remove - Remove a package                                    /*{{{*/
 282 // ---------------------------------------------------------------------
 283 /* Add a remove operation to the sequence list */
 284 bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
 285 {
 286    if (Pkg.end() == true)
 287       return false;
 288
 289    if (Purge == true)
 290       List.push_back(Item(Item::Purge,Pkg));
 291    else
 292       List.push_back(Item(Item::Remove,Pkg));
 293    return true;
 294 }
 295                                                                         /*}}}*/
 296 // DPkgPM::SendPkgInfo - Send info for install-pkgs hook                /*{{{*/
 297 // ---------------------------------------------------------------------
 298 /* This is part of the helper script communication interface, it sends
 299    very complete information down to the other end of the pipe.*/
 300 bool pkgDPkgPM::SendV2Pkgs(FILE *F)
 301 {
 302    return SendPkgsInfo(F, 2);
 303 }
 304 bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
 305 {
 306    // This version of APT supports only v3, so don't sent higher versions
 307    if (Version <= 3)
 308       fprintf(F,"VERSION %u\n", Version);
 309    else
 310       fprintf(F,"VERSION 3\n");
 311
 312    /* Write out all of the configuration directives by walking the
 313       configuration tree */
 314    const Configuration::Item *Top = _config->Tree(0);
 315    for (; Top != 0;)
 316    {
 317       if (Top->Value.empty() == false)
 318       {
 319          fprintf(F,"%s=%s\n",
 320                  QuoteString(Top->FullTag(),"=\"\n").c_str(),
 321                  QuoteString(Top->Value,"\n").c_str());
 322       }
 323
 324       if (Top->Child != 0)
 325       {
 326          Top = Top->Child;
 327          continue;
 328       }
 329
 330       while (Top != 0 && Top->Next == 0)
 331          Top = Top->Parent;
 332       if (Top != 0)
 333          Top = Top->Next;
 334    }
 335    fprintf(F,"\n");
 336
 337    // Write out the package actions in order.
 338    for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
 339    {
 340       if(I->Pkg.end() == true)
 341          continue;
 342
 343       pkgDepCache::StateCache &S = Cache[I->Pkg];
 344
 345       fprintf(F,"%s ",I->Pkg.Name());
 346
 347       // Current version which we are going to replace
 348       pkgCache::VerIterator CurVer = I->Pkg.CurrentVer();
 349       if (CurVer.end() == true && (I->Op == Item::Remove || I->Op == Item::Purge))
 350          CurVer = FindNowVersion(I->Pkg);
 351
 352       if (CurVer.end() == true)
 353       {
 354          if (Version <= 2)
 355             fprintf(F, "- ");
 356          else
 357             fprintf(F, "- - none ");
 358       }
 359       else
 360       {
 361          fprintf(F, "%s ", CurVer.VerStr());
 362          if (Version >= 3)
 363             fprintf(F, "%s %s ", CurVer.Arch(), CurVer.MultiArchType());
 364       }
 365
 366       // Show the compare operator between current and install version
 367       if (S.InstallVer != 0)
 368       {
 369          pkgCache::VerIterator const InstVer = S.InstVerIter(Cache);
 370          int Comp = 2;
 371          if (CurVer.end() == false)
 372             Comp = InstVer.CompareVer(CurVer);
 373          if (Comp < 0)
 374             fprintf(F,"> ");
 375          else if (Comp == 0)
 376             fprintf(F,"= ");
 377          else if (Comp > 0)
 378             fprintf(F,"< ");
 379          fprintf(F, "%s ", InstVer.VerStr());
 380          if (Version >= 3)
 381             fprintf(F, "%s %s ", InstVer.Arch(), InstVer.MultiArchType());
 382       }
 383       else
 384       {
 385          if (Version <= 2)
 386             fprintf(F, "> - ");
 387          else
 388             fprintf(F, "> - - none ");
 389       }
 390
 391       // Show the filename/operation
 392       if (I->Op == Item::Install)
 393       {
 394          // No errors here..
 395          if (I->File[0] != '/')
 396             fprintf(F,"**ERROR**\n");
 397          else
 398             fprintf(F,"%s\n",I->File.c_str());
 399       }
 400       else if (I->Op == Item::Configure)
 401          fprintf(F,"**CONFIGURE**\n");
 402       else if (I->Op == Item::Remove ||
 403           I->Op == Item::Purge)
 404          fprintf(F,"**REMOVE**\n");
 405
 406       if (ferror(F) != 0)
 407          return false;
 408    }
 409    return true;
 410 }
 411                                                                         /*}}}*/
 412 // DPkgPM::RunScriptsWithPkgs - Run scripts with package names on stdin /*{{{*/
 413 // ---------------------------------------------------------------------
 414 /* This looks for a list of scripts to run from the configuration file
 415    each one is run and is fed on standard input a list of all .deb files
 416    that are due to be installed. */
 417 bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 418 {
 419    bool result = true;
 420
 421    Configuration::Item const *Opts = _config->Tree(Cnf);
 422    if (Opts == 0 || Opts->Child == 0)
 423       return true;
 424    Opts = Opts->Child;
 425
 426    sighandler_t old_sigpipe = signal(SIGPIPE, SIG_IGN);
 427
 428    unsigned int Count = 1;
 429    for (; Opts != 0; Opts = Opts->Next, Count++)
 430    {
 431       if (Opts->Value.empty() == true)
 432          continue;
 433
 434       if(_config->FindB("Debug::RunScripts", false) == true)
 435          std::clog << "Running external script with list of all .deb file: '"
 436                    << Opts->Value << "'" << std::endl;
 437
 438       // Determine the protocol version
 439       string OptSec = Opts->Value;
 440       string::size_type Pos;
 441       if ((Pos = OptSec.find(' ')) == string::npos || Pos == 0)
 442          Pos = OptSec.length();
 443       OptSec = "DPkg::Tools::Options::" + string(Opts->Value.c_str(),Pos);
 444
 445       unsigned int Version = _config->FindI(OptSec+"::Version",1);
 446       unsigned int InfoFD = _config->FindI(OptSec + "::InfoFD", STDIN_FILENO);
 447
 448       // Create the pipes
 449       std::set<int> KeepFDs;
 450       MergeKeepFdsFromConfiguration(KeepFDs);
 451       int Pipes[2];
 452       if (pipe(Pipes) != 0) {
 453          result = _error->Errno("pipe","Failed to create IPC pipe to subprocess");
 454          break;
 455       }
 456       if (InfoFD != (unsigned)Pipes[0])
 457          SetCloseExec(Pipes[0],true);
 458       else
 459          KeepFDs.insert(Pipes[0]);
 460
 461
 462       SetCloseExec(Pipes[1],true);
 463
 464       // Purified Fork for running the script
 465       pid_t Process = ExecFork(KeepFDs);
 466       if (Process == 0)
 467       {
 468          // Setup the FDs
 469          dup2(Pipes[0], InfoFD);
 470          SetCloseExec(STDOUT_FILENO,false);
 471          SetCloseExec(STDIN_FILENO,false);
 472          SetCloseExec(STDERR_FILENO,false);
 473
 474          string hookfd;
 475          strprintf(hookfd, "%d", InfoFD);
 476          setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1);
 477
 478          dpkgChrootDirectory();
 479          const char *Args[4];
 480          Args[0] = "/bin/sh";
 481          Args[1] = "-c";
 482          Args[2] = Opts->Value.c_str();
 483          Args[3] = 0;
 484          execv(Args[0],(char **)Args);
 485          _exit(100);
 486       }
 487       close(Pipes[0]);
 488       FILE *F = fdopen(Pipes[1],"w");
 489       if (F == 0) {
 490          result = _error->Errno("fdopen","Faild to open new FD");
 491          break;
 492       }
 493
 494       // Feed it the filenames.
 495       if (Version <= 1)
 496       {
 497          for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
 498          {
 499             // Only deal with packages to be installed from .deb
 500             if (I->Op != Item::Install)
 501                continue;
 502
 503             // No errors here..
 504             if (I->File[0] != '/')
 505                continue;
 506
 507             /* Feed the filename of each package that is pending install
 508                into the pipe. */
 509             fprintf(F,"%s\n",I->File.c_str());
 510             if (ferror(F) != 0)
 511                break;
 512          }
 513       }
 514       else
 515          SendPkgsInfo(F, Version);
 516
 517       fclose(F);
 518
 519       // Clean up the sub process
 520       if (ExecWait(Process,Opts->Value.c_str()) == false) {
 521          result = _error->Error("Failure running script %s",Opts->Value.c_str());
 522          break;
 523       }
 524    }
 525    signal(SIGPIPE, old_sigpipe);
 526
 527    return result;
 528 }
 529                                                                         /*}}}*/
 530 // DPkgPM::DoStdin - Read stdin and pass to master pty                  /*{{{*/
 531 // ---------------------------------------------------------------------
 532 /*
 533 */
 534 void pkgDPkgPM::DoStdin(int master)
 535 {
 536    unsigned char input_buf[256] = {0,};
 537    ssize_t len = read(0, input_buf, sizeof(input_buf));
 538    if (len)
 539       FileFd::Write(master, input_buf, len);
 540    else
 541       d->stdin_is_dev_null = true;
 542 }
 543                                                                         /*}}}*/
 544 // DPkgPM::DoTerminalPty - Read the terminal pty and write log          /*{{{*/
 545 // ---------------------------------------------------------------------
 546 /*
 547  * read the terminal pty and write log
 548  */
 549 void pkgDPkgPM::DoTerminalPty(int master)
 550 {
 551    unsigned char term_buf[1024] = {0,0, };
 552
 553    ssize_t len=read(master, term_buf, sizeof(term_buf));
 554    if(len == -1 && errno == EIO)
 555    {
 556       // this happens when the child is about to exit, we
 557       // give it time to actually exit, otherwise we run
 558       // into a race so we sleep for half a second.
 559       struct timespec sleepfor = { 0, 500000000 };
 560       nanosleep(&sleepfor, NULL);
 561       return;
 562    }
 563    if(len <= 0)
 564       return;
 565    FileFd::Write(1, term_buf, len);
 566    if(d->term_out)
 567       fwrite(term_buf, len, sizeof(char), d->term_out);
 568 }
 569                                                                         /*}}}*/
 570 // DPkgPM::ProcessDpkgStatusBuf                                         /*{{{*/
 571 // ---------------------------------------------------------------------
 572 /*
 573  */
 574 void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
 575 {
 576    bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false);
 577    if (Debug == true)
 578       std::clog << "got from dpkg '" << line << "'" << std::endl;
 579
 580    /* dpkg sends strings like this:
 581       'status:   <pkg>: <pkg  qstate>'
 582       'status:   <pkg>:<arch>: <pkg  qstate>'
 583
 584       'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: pkg'
 585       'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: trigger'
 586    */
 587
 588    // we need to split on ": " (note the appended space) as the ':' is
 589    // part of the pkgname:arch information that dpkg sends
 590    //
 591    // A dpkg error message may contain additional ":" (like
 592    //  "failed in buffer_write(fd) (10, ret=-1): backend dpkg-deb ..."
 593    // so we need to ensure to not split too much
 594    std::vector<std::string> list = StringSplit(line, ": ", 4);
 595    if(list.size() < 3)
 596    {
 597       if (Debug == true)
 598          std::clog << "ignoring line: not enough ':'" << std::endl;
 599       return;
 600    }
 601
 602    // build the (prefix, pkgname, action) tuple, position of this
 603    // is different for "processing" or "status" messages
 604    std::string prefix = APT::String::Strip(list[0]);
 605    std::string pkgname;
 606    std::string action;
 607
 608    // "processing" has the form "processing: action: pkg or trigger"
 609    // with action = ["install", "upgrade", "configure", "remove", "purge",
 610    //                "disappear", "trigproc"]
 611    if (prefix == "processing")
 612    {
 613       pkgname = APT::String::Strip(list[2]);
 614       action = APT::String::Strip(list[1]);
 615       // we don't care for the difference (as dpkg doesn't really either)
 616       if (action == "upgrade")
 617          action = "install";
 618    }
 619    // "status" has the form: "status: pkg: state"
 620    // with state in ["half-installed", "unpacked", "half-configured",
 621    //                "installed", "config-files", "not-installed"]
 622    else if (prefix == "status")
 623    {
 624       pkgname = APT::String::Strip(list[1]);
 625       action = APT::String::Strip(list[2]);
 626    } else {
 627       if (Debug == true)
 628          std::clog << "unknown prefix '" << prefix << "'" << std::endl;
 629       return;
 630    }
 631
 632
 633    /* handle the special cases first:
 634
 635       errors look like this:
 636       'status: /var/cache/apt/archives/krecipes_0.8.1-0ubuntu1_i386.deb : error : trying to overwrite `/usr/share/doc/kde/HTML/en/krecipes/krectip.png', which is also in package krecipes-data
 637       and conffile-prompt like this
 638       'status:/etc/compiz.conf/compiz.conf :  conffile-prompt: 'current-conffile' 'new-conffile' useredited distedited
 639    */
 640    if (prefix == "status")
 641    {
 642       if(action == "error")
 643       {
 644          d->progress->Error(pkgname, PackagesDone, PackagesTotal,
 645                             list[3]);
 646          pkgFailures++;
 647          WriteApportReport(pkgname.c_str(), list[3].c_str());
 648          return;
 649       }
 650       else if(action == "conffile-prompt")
 651       {
 652          d->progress->ConffilePrompt(pkgname, PackagesDone, PackagesTotal,
 653                                      list[3]);
 654          return;
 655       }
 656    }
 657
 658    // at this point we know that we should have a valid pkgname, so build all
 659    // the info from it
 660
 661    // dpkg does not always send "pkgname:arch" so we add it here if needed
 662    if (pkgname.find(":") == std::string::npos)
 663    {
 664       // find the package in the group that is touched by dpkg
 665       // if there are multiple pkgs dpkg would send us a full pkgname:arch
 666       pkgCache::GrpIterator Grp = Cache.FindGrp(pkgname);
 667       if (Grp.end() == false)
 668       {
 669          pkgCache::PkgIterator P = Grp.PackageList();
 670          for (; P.end() != true; P = Grp.NextPkg(P))
 671          {
 672             if(Cache[P].Keep() == false || Cache[P].ReInstall() == true)
 673             {
 674                pkgname = P.FullName();
 675                break;
 676             }
 677          }
 678       }
 679    }
 680
 681    const char* const pkg = pkgname.c_str();
 682    std::string short_pkgname = StringSplit(pkgname, ":")[0];
 683    std::string arch = "";
 684    if (pkgname.find(":") != string::npos)
 685       arch = StringSplit(pkgname, ":")[1];
 686    std::string i18n_pkgname = pkgname;
 687    if (arch.size() != 0)
 688       strprintf(i18n_pkgname, "%s (%s)", short_pkgname.c_str(), arch.c_str());
 689
 690    // 'processing' from dpkg looks like
 691    // 'processing: action: pkg'
 692    if(prefix == "processing")
 693    {
 694       const std::pair<const char *, const char *> * const iter =
 695         std::find_if(PackageProcessingOpsBegin,
 696                      PackageProcessingOpsEnd,
 697                      MatchProcessingOp(action.c_str()));
 698       if(iter == PackageProcessingOpsEnd)
 699       {
 700          if (Debug == true)
 701             std::clog << "ignoring unknown action: " << action << std::endl;
 702          return;
 703       }
 704       std::string msg;
 705       strprintf(msg, _(iter->second), i18n_pkgname.c_str());
 706       d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
 707
 708       // FIXME: this needs a muliarch testcase
 709       // FIXME2: is "pkgname" here reliable with dpkg only sending us
 710       //         short pkgnames?
 711       if (action == "disappear")
 712          handleDisappearAction(pkgname);
 713       return;
 714    }
 715
 716    if (prefix == "status")
 717    {
 718       vector<struct DpkgState> const &states = PackageOps[pkg];
 719       if(PackageOpsDone[pkg] < states.size())
 720       {
 721          char const * const next_action = states[PackageOpsDone[pkg]].state;
 722          if (next_action && Debug == true)
 723             std::clog << "(parsed from dpkg) pkg: " << short_pkgname
 724                << " action: " << action << " (expected: '" << next_action << "' "
 725                << PackageOpsDone[pkg] << " of " << states.size() << ")" << endl;
 726
 727          // check if the package moved to the next dpkg state
 728          if(next_action && (action == next_action))
 729          {
 730             // only read the translation if there is actually a next action
 731             char const * const translation = _(states[PackageOpsDone[pkg]].str);
 732
 733             // we moved from one dpkg state to a new one, report that
 734             ++PackageOpsDone[pkg];
 735             ++PackagesDone;
 736
 737             std::string msg;
 738             strprintf(msg, translation, i18n_pkgname.c_str());
 739             d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
 740          }
 741       }
 742    }
 743 }
 744                                                                         /*}}}*/
 745 // DPkgPM::handleDisappearAction                                        /*{{{*/
 746 void pkgDPkgPM::handleDisappearAction(string const &pkgname)
 747 {
 748    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
 749    if (unlikely(Pkg.end() == true))
 750       return;
 751
 752    // record the package name for display and stuff later
 753    disappearedPkgs.insert(Pkg.FullName(true));
 754
 755    // the disappeared package was auto-installed - nothing to do
 756    if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
 757       return;
 758    pkgCache::VerIterator PkgVer = Cache[Pkg].InstVerIter(Cache);
 759    if (unlikely(PkgVer.end() == true))
 760       return;
 761    /* search in the list of dependencies for (Pre)Depends,
 762       check if this dependency has a Replaces on our package
 763       and if so transfer the manual installed flag to it */
 764    for (pkgCache::DepIterator Dep = PkgVer.DependsList(); Dep.end() != true; ++Dep)
 765    {
 766       if (Dep->Type != pkgCache::Dep::Depends &&
 767           Dep->Type != pkgCache::Dep::PreDepends)
 768          continue;
 769       pkgCache::PkgIterator Tar = Dep.TargetPkg();
 770       if (unlikely(Tar.end() == true))
 771          continue;
 772       // the package is already marked as manual
 773       if ((Cache[Tar].Flags & pkgCache::Flag::Auto) != pkgCache::Flag::Auto)
 774          continue;
 775       pkgCache::VerIterator TarVer =  Cache[Tar].InstVerIter(Cache);
 776       if (TarVer.end() == true)
 777          continue;
 778       for (pkgCache::DepIterator Rep = TarVer.DependsList(); Rep.end() != true; ++Rep)
 779       {
 780          if (Rep->Type != pkgCache::Dep::Replaces)
 781             continue;
 782          if (Pkg != Rep.TargetPkg())
 783             continue;
 784          // okay, they are strongly connected - transfer manual-bit
 785          if (Debug == true)
 786             std::clog << "transfer manual-bit from disappeared »" << pkgname << "« to »" << Tar.FullName() << "«" << std::endl;
 787          Cache[Tar].Flags &= ~Flag::Auto;
 788          break;
 789       }
 790    }
 791 }
 792                                                                         /*}}}*/
 793 // DPkgPM::DoDpkgStatusFd                                               /*{{{*/
 794 // ---------------------------------------------------------------------
 795 /*
 796  */
 797 void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
 798 {
 799    char *p, *q;
 800    int len;
 801
 802    len=read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], sizeof(d->dpkgbuf)-d->dpkgbuf_pos);
 803    d->dpkgbuf_pos += len;
 804    if(len <= 0)
 805       return;
 806
 807    // process line by line if we have a buffer
 808    p = q = d->dpkgbuf;
 809    while((q=(char*)memchr(p, '\n', d->dpkgbuf+d->dpkgbuf_pos-p)) != NULL)
 810    {
 811       *q = 0;
 812       ProcessDpkgStatusLine(p);
 813       p=q+1; // continue with next line
 814    }
 815
 816    // now move the unprocessed bits (after the final \n that is now a 0x0)
 817    // to the start and update d->dpkgbuf_pos
 818    p = (char*)memrchr(d->dpkgbuf, 0, d->dpkgbuf_pos);
 819    if(p == NULL)
 820       return;
 821
 822    // we are interessted in the first char *after* 0x0
 823    p++;
 824
 825    // move the unprocessed tail to the start and update pos
 826    memmove(d->dpkgbuf, p, p-d->dpkgbuf);
 827    d->dpkgbuf_pos = d->dpkgbuf+d->dpkgbuf_pos-p;
 828 }
 829                                                                         /*}}}*/
 830 // DPkgPM::WriteHistoryTag                                              /*{{{*/
 831 void pkgDPkgPM::WriteHistoryTag(string const &tag, string value)
 832 {
 833    size_t const length = value.length();
 834    if (length == 0)
 835       return;
 836    // poor mans rstrip(", ")
 837    if (value[length-2] == ',' && value[length-1] == ' ')
 838       value.erase(length - 2, 2);
 839    fprintf(d->history_out, "%s: %s\n", tag.c_str(), value.c_str());
 840 }                                                                       /*}}}*/
 841 // DPkgPM::OpenLog                                                      /*{{{*/
 842 bool pkgDPkgPM::OpenLog()
 843 {
 844    string const logdir = _config->FindDir("Dir::Log");
 845    if(CreateAPTDirectoryIfNeeded(logdir, logdir) == false)
 846       // FIXME: use a better string after freeze
 847       return _error->Error(_("Directory '%s' missing"), logdir.c_str());
 848
 849    // get current time
 850    char timestr[200];
 851    time_t const t = time(NULL);
 852    struct tm const * const tmp = localtime(&t);
 853    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 854
 855    // open terminal log
 856    string const logfile_name = flCombine(logdir,
 857                                    _config->Find("Dir::Log::Terminal"));
 858    if (!logfile_name.empty())
 859    {
 860       d->term_out = fopen(logfile_name.c_str(),"a");
 861       if (d->term_out == NULL)
 862          return _error->WarningE("OpenLog", _("Could not open file '%s'"), logfile_name.c_str());
 863       setvbuf(d->term_out, NULL, _IONBF, 0);
 864       SetCloseExec(fileno(d->term_out), true);
 865       if (getuid() == 0) // if we aren't root, we can't chown a file, so don't try it
 866       {
 867          struct passwd *pw = getpwnam("root");
 868          struct group *gr = getgrnam("adm");
 869          if (pw != NULL && gr != NULL && chown(logfile_name.c_str(), pw->pw_uid, gr->gr_gid) != 0)
 870             _error->WarningE("OpenLog", "chown to root:adm of file %s failed", logfile_name.c_str());
 871       }
 872       if (chmod(logfile_name.c_str(), 0640) != 0)
 873          _error->WarningE("OpenLog", "chmod 0640 of file %s failed", logfile_name.c_str());
 874       fprintf(d->term_out, "\nLog started: %s\n", timestr);
 875    }
 876
 877    // write your history
 878    string const history_name = flCombine(logdir,
 879                                    _config->Find("Dir::Log::History"));
 880    if (!history_name.empty())
 881    {
 882       d->history_out = fopen(history_name.c_str(),"a");
 883       if (d->history_out == NULL)
 884          return _error->WarningE("OpenLog", _("Could not open file '%s'"), history_name.c_str());
 885       SetCloseExec(fileno(d->history_out), true);
 886       chmod(history_name.c_str(), 0644);
 887       fprintf(d->history_out, "\nStart-Date: %s\n", timestr);
 888       string remove, purge, install, reinstall, upgrade, downgrade;
 889       for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
 890       {
 891          enum { CANDIDATE, CANDIDATE_AUTO, CURRENT_CANDIDATE, CURRENT } infostring;
 892          string *line = NULL;
 893          #define HISTORYINFO(X, Y) { line = &X; infostring = Y; }
 894          if (Cache[I].NewInstall() == true)
 895             HISTORYINFO(install, CANDIDATE_AUTO)
 896          else if (Cache[I].ReInstall() == true)
 897             HISTORYINFO(reinstall, CANDIDATE)
 898          else if (Cache[I].Upgrade() == true)
 899             HISTORYINFO(upgrade, CURRENT_CANDIDATE)
 900          else if (Cache[I].Downgrade() == true)
 901             HISTORYINFO(downgrade, CURRENT_CANDIDATE)
 902          else if (Cache[I].Delete() == true)
 903             HISTORYINFO((Cache[I].Purge() ? purge : remove), CURRENT)
 904          else
 905             continue;
 906          #undef HISTORYINFO
 907          line->append(I.FullName(false)).append(" (");
 908          switch (infostring) {
 909          case CANDIDATE: line->append(Cache[I].CandVersion); break;
 910          case CANDIDATE_AUTO:
 911             line->append(Cache[I].CandVersion);
 912             if ((Cache[I].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
 913                line->append(", automatic");
 914             break;
 915          case CURRENT_CANDIDATE: line->append(Cache[I].CurVersion).append(", ").append(Cache[I].CandVersion); break;
 916          case CURRENT: line->append(Cache[I].CurVersion); break;
 917          }
 918          line->append("), ");
 919       }
 920       if (_config->Exists("Commandline::AsString") == true)
 921          WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));
 922       WriteHistoryTag("Install", install);
 923       WriteHistoryTag("Reinstall", reinstall);
 924       WriteHistoryTag("Upgrade", upgrade);
 925       WriteHistoryTag("Downgrade",downgrade);
 926       WriteHistoryTag("Remove",remove);
 927       WriteHistoryTag("Purge",purge);
 928       fflush(d->history_out);
 929    }
 930
 931    return true;
 932 }
 933                                                                         /*}}}*/
 934 // DPkg::CloseLog                                                       /*{{{*/
 935 bool pkgDPkgPM::CloseLog()
 936 {
 937    char timestr[200];
 938    time_t t = time(NULL);
 939    struct tm *tmp = localtime(&t);
 940    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 941
 942    if(d->term_out)
 943    {
 944       fprintf(d->term_out, "Log ended: ");
 945       fprintf(d->term_out, "%s", timestr);
 946       fprintf(d->term_out, "\n");
 947       fclose(d->term_out);
 948    }
 949    d->term_out = NULL;
 950
 951    if(d->history_out)
 952    {
 953       if (disappearedPkgs.empty() == false)
 954       {
 955          string disappear;
 956          for (std::set<std::string>::const_iterator d = disappearedPkgs.begin();
 957               d != disappearedPkgs.end(); ++d)
 958          {
 959             pkgCache::PkgIterator P = Cache.FindPkg(*d);
 960             disappear.append(*d);
 961             if (P.end() == true)
 962                disappear.append(", ");
 963             else
 964                disappear.append(" (").append(Cache[P].CurVersion).append("), ");
 965          }
 966          WriteHistoryTag("Disappeared", disappear);
 967       }
 968       if (d->dpkg_error.empty() == false)
 969          fprintf(d->history_out, "Error: %s\n", d->dpkg_error.c_str());
 970       fprintf(d->history_out, "End-Date: %s\n", timestr);
 971       fclose(d->history_out);
 972    }
 973    d->history_out = NULL;
 974
 975    return true;
 976 }
 977                                                                         /*}}}*/
 978                                                                         /*}}}*/
 979 /*{{{*/
 980 // This implements a racy version of pselect for those architectures
 981 // that don't have a working implementation.
 982 // FIXME: Probably can be removed on Lenny+1
 983 static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
 984    fd_set *exceptfds, const struct timespec *timeout,
 985    const sigset_t *sigmask)
 986 {
 987    sigset_t origmask;
 988    struct timeval tv;
 989    int retval;
 990
 991    tv.tv_sec = timeout->tv_sec;
 992    tv.tv_usec = timeout->tv_nsec/1000;
 993
 994    sigprocmask(SIG_SETMASK, sigmask, &origmask);
 995    retval = select(nfds, readfds, writefds, exceptfds, &tv);
 996    sigprocmask(SIG_SETMASK, &origmask, 0);
 997    return retval;
 998 }
 999                                                                         /*}}}*/
1000
1001 // DPkgPM::BuildPackagesProgressMap                                     /*{{{*/
1002 void pkgDPkgPM::BuildPackagesProgressMap()
1003 {
1004    // map the dpkg states to the operations that are performed
1005    // (this is sorted in the same way as Item::Ops)
1006    static const struct DpkgState DpkgStatesOpMap[][7] = {
1007       // Install operation
1008       {
1009          {"half-installed", N_("Preparing %s")},
1010          {"unpacked", N_("Unpacking %s") },
1011          {NULL, NULL}
1012       },
1013       // Configure operation
1014       {
1015          {"unpacked",N_("Preparing to configure %s") },
1016          {"half-configured", N_("Configuring %s") },
1017          { "installed", N_("Installed %s")},
1018          {NULL, NULL}
1019       },
1020       // Remove operation
1021       {
1022          {"half-configured", N_("Preparing for removal of %s")},
1023          {"half-installed", N_("Removing %s")},
1024          {"config-files",  N_("Removed %s")},
1025          {NULL, NULL}
1026       },
1027       // Purge operation
1028       {
1029          {"config-files", N_("Preparing to completely remove %s")},
1030          {"not-installed", N_("Completely removed %s")},
1031          {NULL, NULL}
1032       },
1033    };
1034
1035    // init the PackageOps map, go over the list of packages that
1036    // that will be [installed|configured|removed|purged] and add
1037    // them to the PackageOps map (the dpkg states it goes through)
1038    // and the PackageOpsTranslations (human readable strings)
1039    for (vector<Item>::const_iterator I = List.begin(); I != List.end(); ++I)
1040    {
1041       if((*I).Pkg.end() == true)
1042          continue;
1043
1044       string const name = (*I).Pkg.FullName();
1045       PackageOpsDone[name] = 0;
1046       for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL; ++i)
1047       {
1048          PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
1049          PackagesTotal++;
1050       }
1051    }
1052    /* one extra: We don't want the progress bar to reach 100%, especially not
1053       if we call dpkg --configure --pending and process a bunch of triggers
1054       while showing 100%. Also, spindown takes a while, so never reaching 100%
1055       is way more correct than reaching 100% while still doing stuff even if
1056       doing it this way is slightly bending the rules */
1057    ++PackagesTotal;
1058 }
1059                                                                         /*}}}*/
1060 #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR < 13)
1061 bool pkgDPkgPM::Go(int StatusFd)
1062 {
1063    APT::Progress::PackageManager *progress = NULL;
1064    if (StatusFd == -1)
1065       progress = APT::Progress::PackageManagerProgressFactory();
1066    else
1067       progress = new APT::Progress::PackageManagerProgressFd(StatusFd);
1068
1069    return GoNoABIBreak(progress);
1070 }
1071 #endif
1072
1073 void pkgDPkgPM::StartPtyMagic()
1074 {
1075    if (_config->FindB("Dpkg::Use-Pty", true) == false)
1076    {
1077       d->master = -1;
1078       if (d->slave != NULL)
1079          free(d->slave);
1080       d->slave = NULL;
1081       return;
1082    }
1083
1084    if (isatty(STDIN_FILENO) == 0)
1085       d->direct_stdin = true;
1086
1087    _error->PushToStack();
1088
1089    d->master = posix_openpt(O_RDWR | O_NOCTTY);
1090    if (d->master == -1)
1091       _error->Errno("posix_openpt", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
1092    else if (unlockpt(d->master) == -1)
1093       _error->Errno("unlockpt", "Unlocking the slave of master fd %d failed!", d->master);
1094    else
1095    {
1096       char const * const slave_name = ptsname(d->master);
1097       if (slave_name == NULL)
1098          _error->Errno("ptsname", "Getting name for slave of master fd %d failed!", d->master);
1099       else
1100       {
1101          d->slave = strdup(slave_name);
1102          if (d->slave == NULL)
1103             _error->Errno("strdup", "Copying name %s for slave of master fd %d failed!", slave_name, d->master);
1104          else if (grantpt(d->master) == -1)
1105             _error->Errno("grantpt", "Granting access to slave %s based on master fd %d failed!", slave_name, d->master);
1106          else if (tcgetattr(STDIN_FILENO, &d->tt) == 0)
1107          {
1108             d->tt_is_valid = true;
1109             struct termios raw_tt;
1110             // copy window size of stdout if its a 'good' terminal
1111             if (tcgetattr(STDOUT_FILENO, &raw_tt) == 0)
1112             {
1113                struct winsize win;
1114                if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) < 0)
1115                   _error->Errno("ioctl", "Getting TIOCGWINSZ from stdout failed!");
1116                if (ioctl(d->master, TIOCSWINSZ, &win) < 0)
1117                   _error->Errno("ioctl", "Setting TIOCSWINSZ for master fd %d failed!", d->master);
1118             }
1119             if (tcsetattr(d->master, TCSANOW, &d->tt) == -1)
1120                _error->Errno("tcsetattr", "Setting in Start via TCSANOW for master fd %d failed!", d->master);
1121
1122             raw_tt = d->tt;
1123             cfmakeraw(&raw_tt);
1124             raw_tt.c_lflag &= ~ECHO;
1125             raw_tt.c_lflag |= ISIG;
1126             // block SIGTTOU during tcsetattr to prevent a hang if
1127             // the process is a member of the background process group
1128             // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
1129             sigemptyset(&d->sigmask);
1130             sigaddset(&d->sigmask, SIGTTOU);
1131             sigprocmask(SIG_BLOCK,&d->sigmask, &d->original_sigmask);
1132             if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw_tt) == -1)
1133                _error->Errno("tcsetattr", "Setting in Start via TCSAFLUSH for stdin failed!");
1134             sigprocmask(SIG_SETMASK, &d->original_sigmask, NULL);
1135
1136          }
1137          if (d->slave != NULL)
1138          {
1139             /* on linux, closing (and later reopening) all references to the slave
1140                makes the slave a death end, so we open it here to have one open all
1141                the time. We could use this fd in SetupSlavePtyMagic() for linux, but
1142                on kfreebsd we get an incorrect ("step like") output then while it has
1143                no problem with closing all references… so to avoid platform specific
1144                code here we combine both and be happy once more */
1145             d->protect_slave_from_dying = open(d->slave, O_RDWR | O_CLOEXEC | O_NOCTTY);
1146          }
1147       }
1148    }
1149
1150    if (_error->PendingError() == true)
1151    {
1152       if (d->master != -1)
1153       {
1154          close(d->master);
1155          d->master = -1;
1156       }
1157       if (d->slave != NULL)
1158       {
1159          free(d->slave);
1160          d->slave = NULL;
1161       }
1162       _error->DumpErrors(std::cerr);
1163    }
1164    _error->RevertToStack();
1165 }
1166 void pkgDPkgPM::SetupSlavePtyMagic()
1167 {
1168    if(d->master == -1 || d->slave == NULL)
1169       return;
1170
1171    if (close(d->master) == -1)
1172       _error->FatalE("close", "Closing master %d in child failed!", d->master);
1173    d->master = -1;
1174    if (setsid() == -1)
1175       _error->FatalE("setsid", "Starting a new session for child failed!");
1176
1177    int const slaveFd = open(d->slave, O_RDWR | O_NOCTTY);
1178    if (slaveFd == -1)
1179       _error->FatalE("open", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
1180    else if (ioctl(slaveFd, TIOCSCTTY, 0) < 0)
1181       _error->FatalE("ioctl", "Setting TIOCSCTTY for slave fd %d failed!", slaveFd);
1182    else
1183    {
1184       unsigned short i = 0;
1185       if (d->direct_stdin == true)
1186          ++i;
1187       for (; i < 3; ++i)
1188          if (dup2(slaveFd, i) == -1)
1189             _error->FatalE("dup2", "Dupping %d to %d in child failed!", slaveFd, i);
1190
1191       if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSANOW, &d->tt) < 0)
1192          _error->FatalE("tcsetattr", "Setting in Setup via TCSANOW for slave fd %d failed!", slaveFd);
1193    }
1194
1195    if (slaveFd != -1)
1196       close(slaveFd);
1197 }
1198 void pkgDPkgPM::StopPtyMagic()
1199 {
1200    if (d->slave != NULL)
1201       free(d->slave);
1202    d->slave = NULL;
1203    if (d->protect_slave_from_dying != -1)
1204    {
1205       close(d->protect_slave_from_dying);
1206       d->protect_slave_from_dying = -1;
1207    }
1208    if(d->master >= 0)
1209    {
1210       if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSAFLUSH, &d->tt) == -1)
1211          _error->FatalE("tcsetattr", "Setting in Stop via TCSAFLUSH for stdin failed!");
1212       close(d->master);
1213       d->master = -1;
1214    }
1215 }
1216
1217 // DPkgPM::Go - Run the sequence                                        /*{{{*/
1218 // ---------------------------------------------------------------------
1219 /* This globs the operations and calls dpkg
1220  *
1221  * If it is called with a progress object apt will report the install
1222  * progress to this object. It maps the dpkg states a package goes
1223  * through to human readable (and i10n-able)
1224  * names and calculates a percentage for each step.
1225  */
1226 #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
1227 bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
1228 #else
1229 bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress)
1230 #endif
1231 {
1232    pkgPackageManager::SigINTStop = false;
1233    d->progress = progress;
1234
1235    // Generate the base argument list for dpkg
1236    unsigned long StartSize = 0;
1237    std::vector<const char *> Args;
1238    std::string DpkgExecutable = getDpkgExecutable();
1239    Args.push_back(DpkgExecutable.c_str());
1240    StartSize += DpkgExecutable.length();
1241
1242    // Stick in any custom dpkg options
1243    Configuration::Item const *Opts = _config->Tree("DPkg::Options");
1244    if (Opts != 0)
1245    {
1246       Opts = Opts->Child;
1247       for (; Opts != 0; Opts = Opts->Next)
1248       {
1249          if (Opts->Value.empty() == true)
1250             continue;
1251          Args.push_back(Opts->Value.c_str());
1252          StartSize += Opts->Value.length();
1253       }
1254    }
1255
1256    size_t const BaseArgs = Args.size();
1257    // we need to detect if we can qualify packages with the architecture or not
1258    Args.push_back("--assert-multi-arch");
1259    Args.push_back(NULL);
1260
1261    pid_t dpkgAssertMultiArch = ExecFork();
1262    if (dpkgAssertMultiArch == 0)
1263    {
1264       dpkgChrootDirectory();
1265       // redirect everything to the ultimate sink as we only need the exit-status
1266       int const nullfd = open("/dev/null", O_RDONLY);
1267       dup2(nullfd, STDIN_FILENO);
1268       dup2(nullfd, STDOUT_FILENO);
1269       dup2(nullfd, STDERR_FILENO);
1270       execvp(Args[0], (char**) &Args[0]);
1271       _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
1272       _exit(2);
1273    }
1274
1275    fd_set rfds;
1276    struct timespec tv;
1277
1278    // FIXME: do we really need this limit when we have MaxArgBytes?
1279    unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",32*1024);
1280
1281    // try to figure out the max environment size
1282    int OSArgMax = sysconf(_SC_ARG_MAX);
1283    if(OSArgMax < 0)
1284       OSArgMax = 32*1024;
1285    OSArgMax -= EnvironmentSize() - 2*1024;
1286    unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes", OSArgMax);
1287    bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false);
1288
1289    if (RunScripts("DPkg::Pre-Invoke") == false)
1290       return false;
1291
1292    if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
1293       return false;
1294
1295    // support subpressing of triggers processing for special
1296    // cases like d-i that runs the triggers handling manually
1297    bool const TriggersPending = _config->FindB("DPkg::TriggersPending", false);
1298    if (_config->FindB("DPkg::ConfigurePending", true) == true)
1299       List.push_back(Item(Item::ConfigurePending, PkgIterator()));
1300
1301    // for the progress
1302    BuildPackagesProgressMap();
1303
1304    d->stdin_is_dev_null = false;
1305
1306    // create log
1307    OpenLog();
1308
1309    bool dpkgMultiArch = false;
1310    if (dpkgAssertMultiArch > 0)
1311    {
1312       int Status = 0;
1313       while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
1314       {
1315          if (errno == EINTR)
1316             continue;
1317          _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
1318          break;
1319       }
1320       if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
1321          dpkgMultiArch = true;
1322    }
1323
1324    // start pty magic before the loop
1325    StartPtyMagic();
1326
1327    // Tell the progress that its starting and fork dpkg
1328    d->progress->Start(d->master);
1329
1330    // this loop is runs once per dpkg operation
1331    vector<Item>::const_iterator I = List.begin();
1332    while (I != List.end())
1333    {
1334       // Do all actions with the same Op in one run
1335       vector<Item>::const_iterator J = I;
1336       if (TriggersPending == true)
1337          for (; J != List.end(); ++J)
1338          {
1339             if (J->Op == I->Op)
1340                continue;
1341             if (J->Op != Item::TriggersPending)
1342                break;
1343             vector<Item>::const_iterator T = J + 1;
1344             if (T != List.end() && T->Op == I->Op)
1345                continue;
1346             break;
1347          }
1348       else
1349          for (; J != List.end() && J->Op == I->Op; ++J)
1350             /* nothing */;
1351
1352       // keep track of allocated strings for multiarch package names
1353       std::vector<char *> Packages;
1354
1355       // start with the baseset of arguments
1356       unsigned long Size = StartSize;
1357       Args.erase(Args.begin() + BaseArgs, Args.end());
1358
1359       // Now check if we are within the MaxArgs limit
1360       //
1361       // this code below is problematic, because it may happen that
1362       // the argument list is split in a way that A depends on B
1363       // and they are in the same "--configure A B" run
1364       // - with the split they may now be configured in different
1365       //   runs, using Immediate-Configure-All can help prevent this.
1366       if (J - I > (signed)MaxArgs)
1367       {
1368          J = I + MaxArgs;
1369          unsigned long const size = MaxArgs + 10;
1370          Args.reserve(size);
1371          Packages.reserve(size);
1372       }
1373       else
1374       {
1375          unsigned long const size = (J - I) + 10;
1376          Args.reserve(size);
1377          Packages.reserve(size);
1378       }
1379
1380       int fd[2];
1381       if (pipe(fd) != 0)
1382          return _error->Errno("pipe","Failed to create IPC pipe to dpkg");
1383
1384 #define ADDARG(X) Args.push_back(X); Size += strlen(X)
1385 #define ADDARGC(X) Args.push_back(X); Size += sizeof(X) - 1
1386
1387       ADDARGC("--status-fd");
1388       char status_fd_buf[20];
1389       snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]);
1390       ADDARG(status_fd_buf);
1391       unsigned long const Op = I->Op;
1392
1393       switch (I->Op)
1394       {
1395          case Item::Remove:
1396          ADDARGC("--force-depends");
1397          ADDARGC("--force-remove-essential");
1398          ADDARGC("--remove");
1399          break;
1400
1401          case Item::Purge:
1402          ADDARGC("--force-depends");
1403          ADDARGC("--force-remove-essential");
1404          ADDARGC("--purge");
1405          break;
1406
1407          case Item::Configure:
1408          ADDARGC("--configure");
1409          break;
1410
1411          case Item::ConfigurePending:
1412          ADDARGC("--configure");
1413          ADDARGC("--pending");
1414          break;
1415
1416          case Item::TriggersPending:
1417          ADDARGC("--triggers-only");
1418          ADDARGC("--pending");
1419          break;
1420
1421          case Item::Install:
1422          ADDARGC("--unpack");
1423          ADDARGC("--auto-deconfigure");
1424          break;
1425       }
1426
1427       if (NoTriggers == true && I->Op != Item::TriggersPending &&
1428           I->Op != Item::ConfigurePending)
1429       {
1430          ADDARGC("--no-triggers");
1431       }
1432 #undef ADDARGC
1433
1434       // Write in the file or package names
1435       if (I->Op == Item::Install)
1436       {
1437          for (;I != J && Size < MaxArgBytes; ++I)
1438          {
1439             if (I->File[0] != '/')
1440                return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str());
1441             Args.push_back(I->File.c_str());
1442             Size += I->File.length();
1443          }
1444       }
1445       else
1446       {
1447          string const nativeArch = _config->Find("APT::Architecture");
1448          unsigned long const oldSize = I->Op == Item::Configure ? Size : 0;
1449          for (;I != J && Size < MaxArgBytes; ++I)
1450          {
1451             if((*I).Pkg.end() == true)
1452                continue;
1453             if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.FullName(true)) != disappearedPkgs.end())
1454                continue;
1455             // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
1456             if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch ||
1457                                            strcmp(I->Pkg.Arch(), "all") == 0 ||
1458                                            strcmp(I->Pkg.Arch(), "none") == 0))
1459             {
1460                char const * const name = I->Pkg.Name();
1461                ADDARG(name);
1462             }
1463             else
1464             {
1465                pkgCache::VerIterator PkgVer;
1466                std::string name = I->Pkg.Name();
1467                if (Op == Item::Remove || Op == Item::Purge)
1468                {
1469                   PkgVer = I->Pkg.CurrentVer();
1470                   if(PkgVer.end() == true)
1471                      PkgVer = FindNowVersion(I->Pkg);
1472                }
1473                else
1474                   PkgVer = Cache[I->Pkg].InstVerIter(Cache);
1475                if (strcmp(I->Pkg.Arch(), "none") == 0)
1476                   ; // never arch-qualify a package without an arch
1477                else if (PkgVer.end() == false)
1478                   name.append(":").append(PkgVer.Arch());
1479                else
1480                   _error->Warning("Can not find PkgVer for '%s'", name.c_str());
1481                char * const fullname = strdup(name.c_str());
1482                Packages.push_back(fullname);
1483                ADDARG(fullname);
1484             }
1485          }
1486          // skip configure action if all sheduled packages disappeared
1487          if (oldSize == Size)
1488             continue;
1489       }
1490 #undef ADDARG
1491
1492       J = I;
1493
1494       if (_config->FindB("Debug::pkgDPkgPM",false) == true)
1495       {
1496          for (std::vector<const char *>::const_iterator a = Args.begin();
1497               a != Args.end(); ++a)
1498             clog << *a << ' ';
1499          clog << endl;
1500          continue;
1501       }
1502       Args.push_back(NULL);
1503
1504       cout << flush;
1505       clog << flush;
1506       cerr << flush;
1507
1508       /* Mask off sig int/quit. We do this because dpkg also does when
1509          it forks scripts. What happens is that when you hit ctrl-c it sends
1510          it to all processes in the group. Since dpkg ignores the signal
1511          it doesn't die but we do! So we must also ignore it */
1512       sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
1513       sighandler_t old_SIGINT = signal(SIGINT,SigINT);
1514
1515       // Check here for any SIGINT
1516       if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install))
1517          break;
1518
1519
1520       // ignore SIGHUP as well (debian #463030)
1521       sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
1522
1523       // now run dpkg
1524       d->progress->StartDpkg();
1525       std::set<int> KeepFDs;
1526       KeepFDs.insert(fd[1]);
1527       MergeKeepFdsFromConfiguration(KeepFDs);
1528       pid_t Child = ExecFork(KeepFDs);
1529       if (Child == 0)
1530       {
1531          // This is the child
1532          SetupSlavePtyMagic();
1533          close(fd[0]); // close the read end of the pipe
1534
1535          dpkgChrootDirectory();
1536
1537          if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
1538             _exit(100);
1539
1540          if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO))
1541          {
1542             int Flags;
1543             int dummy = 0;
1544             if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0)
1545                _exit(100);
1546
1547             // Discard everything in stdin before forking dpkg
1548             if (fcntl(STDIN_FILENO,F_SETFL,Flags | O_NONBLOCK) < 0)
1549                _exit(100);
1550
1551             while (read(STDIN_FILENO,&dummy,1) == 1);
1552
1553             if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0)
1554                _exit(100);
1555          }
1556
1557          /* No Job Control Stop Env is a magic dpkg var that prevents it
1558             from using sigstop */
1559          putenv((char *)"DPKG_NO_TSTP=yes");
1560          execvp(Args[0], (char**) &Args[0]);
1561          cerr << "Could not exec dpkg!" << endl;
1562          _exit(100);
1563       }
1564
1565       // apply ionice
1566       if (_config->FindB("DPkg::UseIoNice", false) == true)
1567          ionice(Child);
1568
1569       // Wait for dpkg
1570       int Status = 0;
1571
1572       // we read from dpkg here
1573       int const _dpkgin = fd[0];
1574       close(fd[1]);                        // close the write end of the pipe
1575
1576       // setups fds
1577       sigemptyset(&d->sigmask);
1578       sigprocmask(SIG_BLOCK,&d->sigmask,&d->original_sigmask);
1579
1580       /* free vectors (and therefore memory) as we don't need the included data anymore */
1581       for (std::vector<char *>::const_iterator p = Packages.begin();
1582            p != Packages.end(); ++p)
1583          free(*p);
1584       Packages.clear();
1585
1586       // the result of the waitpid call
1587       int res;
1588       int select_ret;
1589       while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
1590          if(res < 0) {
1591             // FIXME: move this to a function or something, looks ugly here
1592             // error handling, waitpid returned -1
1593             if (errno == EINTR)
1594                continue;
1595             RunScripts("DPkg::Post-Invoke");
1596
1597             // Restore sig int/quit
1598             signal(SIGQUIT,old_SIGQUIT);
1599             signal(SIGINT,old_SIGINT);
1600
1601             signal(SIGHUP,old_SIGHUP);
1602             return _error->Errno("waitpid","Couldn't wait for subprocess");
1603          }
1604
1605          // wait for input or output here
1606          FD_ZERO(&rfds);
1607          if (d->master >= 0 && d->direct_stdin == false && d->stdin_is_dev_null == false)
1608             FD_SET(STDIN_FILENO, &rfds);
1609          FD_SET(_dpkgin, &rfds);
1610          if(d->master >= 0)
1611             FD_SET(d->master, &rfds);
1612          tv.tv_sec = 0;
1613          tv.tv_nsec = d->progress->GetPulseInterval();
1614          select_ret = pselect(max(d->master, _dpkgin)+1, &rfds, NULL, NULL,
1615                               &tv, &d->original_sigmask);
1616          if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS))
1617             select_ret = racy_pselect(max(d->master, _dpkgin)+1, &rfds, NULL,
1618                                       NULL, &tv, &d->original_sigmask);
1619          d->progress->Pulse();
1620          if (select_ret == 0)
1621             continue;
1622          else if (select_ret < 0 && errno == EINTR)
1623             continue;
1624          else if (select_ret < 0)
1625          {
1626             perror("select() returned error");
1627             continue;
1628          }
1629
1630          if(d->master >= 0 && FD_ISSET(d->master, &rfds))
1631             DoTerminalPty(d->master);
1632          if(d->master >= 0 && FD_ISSET(0, &rfds))
1633             DoStdin(d->master);
1634          if(FD_ISSET(_dpkgin, &rfds))
1635             DoDpkgStatusFd(_dpkgin);
1636       }
1637       close(_dpkgin);
1638
1639       // Restore sig int/quit
1640       signal(SIGQUIT,old_SIGQUIT);
1641       signal(SIGINT,old_SIGINT);
1642
1643       signal(SIGHUP,old_SIGHUP);
1644       // Check for an error code.
1645       if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
1646       {
1647          // if it was set to "keep-dpkg-runing" then we won't return
1648          // here but keep the loop going and just report it as a error
1649          // for later
1650          bool const stopOnError = _config->FindB("Dpkg::StopOnError",true);
1651
1652          if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV)
1653             strprintf(d->dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);
1654          else if (WIFEXITED(Status) != 0)
1655             strprintf(d->dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));
1656          else
1657             strprintf(d->dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);
1658          _error->Error("%s", d->dpkg_error.c_str());
1659
1660          if(stopOnError)
1661             break;
1662       }
1663    }
1664    // dpkg is done at this point
1665    d->progress->Stop();
1666    StopPtyMagic();
1667    CloseLog();
1668
1669    if (pkgPackageManager::SigINTStop)
1670        _error->Warning(_("Operation was interrupted before it could finish"));
1671
1672    if (RunScripts("DPkg::Post-Invoke") == false)
1673       return false;
1674
1675    if (_config->FindB("Debug::pkgDPkgPM",false) == false)
1676    {
1677       std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
1678       if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&
1679           unlink(oldpkgcache.c_str()) == 0)
1680       {
1681          std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
1682          if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
1683          {
1684             _error->PushToStack();
1685             pkgCacheFile CacheFile;
1686             CacheFile.BuildCaches(NULL, true);
1687             _error->RevertToStack();
1688          }
1689       }
1690    }
1691
1692    Cache.writeStateFile(NULL);
1693    return d->dpkg_error.empty();
1694 }
1695
1696 void SigINT(int /*sig*/) {
1697    pkgPackageManager::SigINTStop = true;
1698 }
1699                                                                         /*}}}*/
1700 // pkgDpkgPM::Reset - Dump the contents of the command list             /*{{{*/
1701 // ---------------------------------------------------------------------
1702 /* */
1703 void pkgDPkgPM::Reset()
1704 {
1705    List.erase(List.begin(),List.end());
1706 }
1707                                                                         /*}}}*/
1708 // pkgDpkgPM::WriteApportReport - write out error report pkg failure    /*{{{*/
1709 // ---------------------------------------------------------------------
1710 /* */
1711 void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
1712 {
1713    // If apport doesn't exist or isn't installed do nothing
1714    // This e.g. prevents messages in 'universes' without apport
1715    pkgCache::PkgIterator apportPkg = Cache.FindPkg("apport");
1716    if (apportPkg.end() == true || apportPkg->CurrentVer == 0)
1717       return;
1718
1719    string pkgname, reportfile, srcpkgname, pkgver, arch;
1720    string::size_type pos;
1721    FILE *report;
1722
1723    if (_config->FindB("Dpkg::ApportFailureReport", true) == false)
1724    {
1725       std::clog << "configured to not write apport reports" << std::endl;
1726       return;
1727    }
1728
1729    // only report the first errors
1730    if(pkgFailures > _config->FindI("APT::Apport::MaxReports", 3))
1731    {
1732       std::clog << _("No apport report written because MaxReports is reached already") << std::endl;
1733       return;
1734    }
1735
1736    // check if its not a follow up error
1737    const char *needle = dgettext("dpkg", "dependency problems - leaving unconfigured");
1738    if(strstr(errormsg, needle) != NULL) {
1739       std::clog << _("No apport report written because the error message indicates its a followup error from a previous failure.") << std::endl;
1740       return;
1741    }
1742
1743    // do not report disk-full failures
1744    if(strstr(errormsg, strerror(ENOSPC)) != NULL) {
1745       std::clog << _("No apport report written because the error message indicates a disk full error") << std::endl;
1746       return;
1747    }
1748
1749    // do not report out-of-memory failures
1750    if(strstr(errormsg, strerror(ENOMEM)) != NULL ||
1751       strstr(errormsg, "failed to allocate memory") != NULL) {
1752       std::clog << _("No apport report written because the error message indicates a out of memory error") << std::endl;
1753       return;
1754    }
1755
1756    // do not report bugs regarding inaccessible local files
1757    if(strstr(errormsg, strerror(ENOENT)) != NULL ||
1758       strstr(errormsg, "cannot access archive") != NULL) {
1759       std::clog << _("No apport report written because the error message indicates an issue on the local system") << std::endl;
1760       return;
1761    }
1762
1763    // do not report errors encountered when decompressing packages
1764    if(strstr(errormsg, "--fsys-tarfile returned error exit status 2") != NULL) {
1765       std::clog << _("No apport report written because the error message indicates an issue on the local system") << std::endl;
1766       return;
1767    }
1768
1769    // do not report dpkg I/O errors, this is a format string, so we compare
1770    // the prefix and the suffix of the error with the dpkg error message
1771    vector<string> io_errors;
1772    io_errors.push_back(string("failed to read"));
1773    io_errors.push_back(string("failed to write"));
1774    io_errors.push_back(string("failed to seek"));
1775    io_errors.push_back(string("unexpected end of file or stream"));
1776
1777    for (vector<string>::iterator I = io_errors.begin(); I != io_errors.end(); ++I)
1778    {
1779       vector<string> list = VectorizeString(dgettext("dpkg", (*I).c_str()), '%');
1780       if (list.size() > 1) {
1781          // we need to split %s, VectorizeString only allows char so we need
1782          // to kill the "s" manually
1783          if (list[1].size() > 1) {
1784             list[1].erase(0, 1);
1785             if(strstr(errormsg, list[0].c_str()) &&
1786                strstr(errormsg, list[1].c_str())) {
1787                std::clog << _("No apport report written because the error message indicates a dpkg I/O error") << std::endl;
1788                return;
1789             }
1790          }
1791       }
1792    }
1793
1794    // get the pkgname and reportfile
1795    pkgname = flNotDir(pkgpath);
1796    pos = pkgname.find('_');
1797    if(pos != string::npos)
1798       pkgname = pkgname.substr(0, pos);
1799
1800    // find the package versin and source package name
1801    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
1802    if (Pkg.end() == true)
1803       return;
1804    pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
1805    if (Ver.end() == true)
1806       return;
1807    pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();
1808    pkgRecords Recs(Cache);
1809    pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
1810    srcpkgname = Parse.SourcePkg();
1811    if(srcpkgname.empty())
1812       srcpkgname = pkgname;
1813
1814    // if the file exists already, we check:
1815    // - if it was reported already (touched by apport).
1816    //   If not, we do nothing, otherwise
1817    //    we overwrite it. This is the same behaviour as apport
1818    // - if we have a report with the same pkgversion already
1819    //   then we skip it
1820    reportfile = flCombine("/var/crash",pkgname+".0.crash");
1821    if(FileExists(reportfile))
1822    {
1823       struct stat buf;
1824       char strbuf[255];
1825
1826       // check atime/mtime
1827       stat(reportfile.c_str(), &buf);
1828       if(buf.st_mtime > buf.st_atime)
1829          return;
1830
1831       // check if the existing report is the same version
1832       report = fopen(reportfile.c_str(),"r");
1833       while(fgets(strbuf, sizeof(strbuf), report) != NULL)
1834       {
1835          if(strstr(strbuf,"Package:") == strbuf)
1836          {
1837             char pkgname[255], version[255];
1838             if(sscanf(strbuf, "Package: %254s %254s", pkgname, version) == 2)
1839                if(strcmp(pkgver.c_str(), version) == 0)
1840                {
1841                   fclose(report);
1842                   return;
1843                }
1844          }
1845       }
1846       fclose(report);
1847    }
1848
1849    // now write the report
1850    arch = _config->Find("APT::Architecture");
1851    report = fopen(reportfile.c_str(),"w");
1852    if(report == NULL)
1853       return;
1854    if(_config->FindB("DPkgPM::InitialReportOnly",false) == true)
1855       chmod(reportfile.c_str(), 0);
1856    else
1857       chmod(reportfile.c_str(), 0600);
1858    fprintf(report, "ProblemType: Package\n");
1859    fprintf(report, "Architecture: %s\n", arch.c_str());
1860    time_t now = time(NULL);
1861    fprintf(report, "Date: %s" , ctime(&now));
1862    fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str());
1863    fprintf(report, "SourcePackage: %s\n", srcpkgname.c_str());
1864    fprintf(report, "ErrorMessage:\n %s\n", errormsg);
1865
1866    // ensure that the log is flushed
1867    if(d->term_out)
1868       fflush(d->term_out);
1869
1870    // attach terminal log it if we have it
1871    string logfile_name = _config->FindFile("Dir::Log::Terminal");
1872    if (!logfile_name.empty())
1873    {
1874       FILE *log = NULL;
1875
1876       fprintf(report, "DpkgTerminalLog:\n");
1877       log = fopen(logfile_name.c_str(),"r");
1878       if(log != NULL)
1879       {
1880          char buf[1024];
1881          while( fgets(buf, sizeof(buf), log) != NULL)
1882             fprintf(report, " %s", buf);
1883          fprintf(report, " \n");
1884          fclose(log);
1885       }
1886    }
1887
1888    // attach history log it if we have it
1889    string histfile_name = _config->FindFile("Dir::Log::History");
1890    if (!histfile_name.empty())
1891    {
1892       fprintf(report, "DpkgHistoryLog:\n");
1893       FILE* log = fopen(histfile_name.c_str(),"r");
1894       if(log != NULL)
1895       {
1896          char buf[1024];
1897          while( fgets(buf, sizeof(buf), log) != NULL)
1898             fprintf(report, " %s", buf);
1899          fclose(log);
1900       }
1901    }
1902
1903    // log the ordering, see dpkgpm.h and the "Ops" enum there
1904    const char *ops_str[] = {
1905       "Install",
1906       "Configure",
1907       "Remove",
1908       "Purge",
1909       "ConfigurePending",
1910       "TriggersPending",
1911    };
1912    fprintf(report, "AptOrdering:\n");
1913    for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
1914       if ((*I).Pkg != NULL)
1915          fprintf(report, " %s: %s\n", (*I).Pkg.Name(), ops_str[(*I).Op]);
1916       else
1917          fprintf(report, " %s: %s\n", "NULL", ops_str[(*I).Op]);
1918
1919    // attach dmesg log (to learn about segfaults)
1920    if (FileExists("/bin/dmesg"))
1921    {
1922       fprintf(report, "Dmesg:\n");
1923       FILE *log = popen("/bin/dmesg","r");
1924       if(log != NULL)
1925       {
1926          char buf[1024];
1927          while( fgets(buf, sizeof(buf), log) != NULL)
1928             fprintf(report, " %s", buf);
1929          pclose(log);
1930       }
1931    }
1932
1933    // attach df -l log (to learn about filesystem status)
1934    if (FileExists("/bin/df"))
1935    {
1936
1937       fprintf(report, "Df:\n");
1938       FILE *log = popen("/bin/df -l","r");
1939       if(log != NULL)
1940       {
1941          char buf[1024];
1942          while( fgets(buf, sizeof(buf), log) != NULL)
1943             fprintf(report, " %s", buf);
1944          pclose(log);
1945       }
1946    }
1947
1948    fclose(report);
1949
1950 }
1951                                                                         /*}}}*/