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- // -*- mode: cpp; mode: fold -*-
- // Description /*{{{*/
- // $Id: dpkgpm.cc,v 1.28 2004/01/27 02:25:01 mdz Exp $
- /* ######################################################################
- DPKG Package Manager - Provide an interface to dpkg
-
- ##################################################################### */
- /*}}}*/
- // Includes /*{{{*/
- #include <config.h>
- #include <apt-pkg/cachefile.h>
- #include <apt-pkg/configuration.h>
- #include <apt-pkg/depcache.h>
- #include <apt-pkg/dpkgpm.h>
- #include <apt-pkg/error.h>
- #include <apt-pkg/fileutl.h>
- #include <apt-pkg/install-progress.h>
- #include <apt-pkg/packagemanager.h>
- #include <apt-pkg/pkgrecords.h>
- #include <apt-pkg/strutl.h>
- #include <apt-pkg/cacheiterators.h>
- #include <apt-pkg/macros.h>
- #include <apt-pkg/pkgcache.h>
- #include <errno.h>
- #include <fcntl.h>
- #include <grp.h>
- #include <pty.h>
- #include <pwd.h>
- #include <signal.h>
- #include <stddef.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <sys/ioctl.h>
- #include <sys/select.h>
- #include <sys/stat.h>
- #include <sys/time.h>
- #include <sys/wait.h>
- #include <termios.h>
- #include <time.h>
- #include <unistd.h>
- #include <algorithm>
- #include <cstring>
- #include <iostream>
- #include <map>
- #include <set>
- #include <string>
- #include <utility>
- #include <vector>
- #include <apti18n.h>
- /*}}}*/
- using namespace std;
- APT_PURE static unsigned int
- EnvironmentSize()
- {
- unsigned int size = 0;
- char **envp = environ;
- while (*envp != NULL)
- size += strlen (*envp++) + 1;
- return size;
- }
- class pkgDPkgPMPrivate
- {
- public:
- pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0),
- term_out(NULL), history_out(NULL),
- progress(NULL), tt_is_valid(false), master(-1),
- slave(NULL), protect_slave_from_dying(-1),
- direct_stdin(false)
- {
- dpkgbuf[0] = '\0';
- }
- ~pkgDPkgPMPrivate()
- {
- }
- bool stdin_is_dev_null;
- // the buffer we use for the dpkg status-fd reading
- char dpkgbuf[1024];
- int dpkgbuf_pos;
- FILE *term_out;
- FILE *history_out;
- string dpkg_error;
- APT::Progress::PackageManager *progress;
- // pty stuff
- struct termios tt;
- bool tt_is_valid;
- int master;
- char * slave;
- int protect_slave_from_dying;
- // signals
- sigset_t sigmask;
- sigset_t original_sigmask;
- bool direct_stdin;
- };
- namespace
- {
- // Maps the dpkg "processing" info to human readable names. Entry 0
- // of each array is the key, entry 1 is the value.
- const std::pair<const char *, const char *> PackageProcessingOps[] = {
- std::make_pair("install", N_("Installing %s")),
- std::make_pair("configure", N_("Configuring %s")),
- std::make_pair("remove", N_("Removing %s")),
- std::make_pair("purge", N_("Completely removing %s")),
- std::make_pair("disappear", N_("Noting disappearance of %s")),
- std::make_pair("trigproc", N_("Running post-installation trigger %s"))
- };
- const std::pair<const char *, const char *> * const PackageProcessingOpsBegin = PackageProcessingOps;
- const std::pair<const char *, const char *> * const PackageProcessingOpsEnd = PackageProcessingOps + sizeof(PackageProcessingOps) / sizeof(PackageProcessingOps[0]);
- // Predicate to test whether an entry in the PackageProcessingOps
- // array matches a string.
- class MatchProcessingOp
- {
- const char *target;
- public:
- MatchProcessingOp(const char *the_target)
- : target(the_target)
- {
- }
- bool operator()(const std::pair<const char *, const char *> &pair) const
- {
- return strcmp(pair.first, target) == 0;
- }
- };
- }
- /* helper function to ionice the given PID
- there is no C header for ionice yet - just the syscall interface
- so we use the binary from util-linux
- */
- static bool
- ionice(int PID)
- {
- if (!FileExists("/usr/bin/ionice"))
- return false;
- pid_t Process = ExecFork();
- if (Process == 0)
- {
- char buf[32];
- snprintf(buf, sizeof(buf), "-p%d", PID);
- const char *Args[4];
- Args[0] = "/usr/bin/ionice";
- Args[1] = "-c3";
- Args[2] = buf;
- Args[3] = 0;
- execv(Args[0], (char **)Args);
- }
- return ExecWait(Process, "ionice");
- }
- static std::string getDpkgExecutable()
- {
- string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
- string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
- size_t dpkgChrootLen = dpkgChrootDir.length();
- if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
- {
- if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
- --dpkgChrootLen;
- Tmp = Tmp.substr(dpkgChrootLen);
- }
- return Tmp;
- }
- // dpkgChrootDirectory - chrooting for dpkg if needed /*{{{*/
- static void dpkgChrootDirectory()
- {
- std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
- if (chrootDir == "/")
- return;
- std::cerr << "Chrooting into " << chrootDir << std::endl;
- if (chroot(chrootDir.c_str()) != 0)
- _exit(100);
- if (chdir("/") != 0)
- _exit(100);
- }
- /*}}}*/
- // FindNowVersion - Helper to find a Version in "now" state /*{{{*/
- // ---------------------------------------------------------------------
- /* This is helpful when a package is no longer installed but has residual
- * config files
- */
- static
- pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
- {
- pkgCache::VerIterator Ver;
- for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
- for (pkgCache::VerFileIterator Vf = Ver.FileList(); Vf.end() == false; ++Vf)
- for (pkgCache::PkgFileIterator F = Vf.File(); F.end() == false; ++F)
- {
- if (F.Archive() != 0 && strcmp(F.Archive(), "now") == 0)
- return Ver;
- }
- return Ver;
- }
- /*}}}*/
- // DPkgPM::pkgDPkgPM - Constructor /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
- : pkgPackageManager(Cache),d(new pkgDPkgPMPrivate()), pkgFailures(0), PackagesDone(0), PackagesTotal(0)
- {
- }
- /*}}}*/
- // DPkgPM::pkgDPkgPM - Destructor /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- pkgDPkgPM::~pkgDPkgPM()
- {
- delete d;
- }
- /*}}}*/
- // DPkgPM::Install - Install a package /*{{{*/
- // ---------------------------------------------------------------------
- /* Add an install operation to the sequence list */
- bool pkgDPkgPM::Install(PkgIterator Pkg,string File)
- {
- if (File.empty() == true || Pkg.end() == true)
- return _error->Error("Internal Error, No file name for %s",Pkg.FullName().c_str());
- // If the filename string begins with DPkg::Chroot-Directory, return the
- // substr that is within the chroot so dpkg can access it.
- string const chrootdir = _config->FindDir("DPkg::Chroot-Directory","/");
- if (chrootdir != "/" && File.find(chrootdir) == 0)
- {
- size_t len = chrootdir.length();
- if (chrootdir.at(len - 1) == '/')
- len--;
- List.push_back(Item(Item::Install,Pkg,File.substr(len)));
- }
- else
- List.push_back(Item(Item::Install,Pkg,File));
- return true;
- }
- /*}}}*/
- // DPkgPM::Configure - Configure a package /*{{{*/
- // ---------------------------------------------------------------------
- /* Add a configure operation to the sequence list */
- bool pkgDPkgPM::Configure(PkgIterator Pkg)
- {
- if (Pkg.end() == true)
- return false;
- List.push_back(Item(Item::Configure, Pkg));
- // Use triggers for config calls if we configure "smart"
- // as otherwise Pre-Depends will not be satisfied, see #526774
- if (_config->FindB("DPkg::TriggersPending", false) == true)
- List.push_back(Item(Item::TriggersPending, PkgIterator()));
- return true;
- }
- /*}}}*/
- // DPkgPM::Remove - Remove a package /*{{{*/
- // ---------------------------------------------------------------------
- /* Add a remove operation to the sequence list */
- bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
- {
- if (Pkg.end() == true)
- return false;
-
- if (Purge == true)
- List.push_back(Item(Item::Purge,Pkg));
- else
- List.push_back(Item(Item::Remove,Pkg));
- return true;
- }
- /*}}}*/
- // DPkgPM::SendPkgInfo - Send info for install-pkgs hook /*{{{*/
- // ---------------------------------------------------------------------
- /* This is part of the helper script communication interface, it sends
- very complete information down to the other end of the pipe.*/
- bool pkgDPkgPM::SendV2Pkgs(FILE *F)
- {
- return SendPkgsInfo(F, 2);
- }
- bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
- {
- // This version of APT supports only v3, so don't sent higher versions
- if (Version <= 3)
- fprintf(F,"VERSION %u\n", Version);
- else
- fprintf(F,"VERSION 3\n");
- /* Write out all of the configuration directives by walking the
- configuration tree */
- const Configuration::Item *Top = _config->Tree(0);
- for (; Top != 0;)
- {
- if (Top->Value.empty() == false)
- {
- fprintf(F,"%s=%s\n",
- QuoteString(Top->FullTag(),"=\"\n").c_str(),
- QuoteString(Top->Value,"\n").c_str());
- }
- if (Top->Child != 0)
- {
- Top = Top->Child;
- continue;
- }
-
- while (Top != 0 && Top->Next == 0)
- Top = Top->Parent;
- if (Top != 0)
- Top = Top->Next;
- }
- fprintf(F,"\n");
-
- // Write out the package actions in order.
- for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
- {
- if(I->Pkg.end() == true)
- continue;
- pkgDepCache::StateCache &S = Cache[I->Pkg];
-
- fprintf(F,"%s ",I->Pkg.Name());
- // Current version which we are going to replace
- pkgCache::VerIterator CurVer = I->Pkg.CurrentVer();
- if (CurVer.end() == true && (I->Op == Item::Remove || I->Op == Item::Purge))
- CurVer = FindNowVersion(I->Pkg);
- if (CurVer.end() == true)
- {
- if (Version <= 2)
- fprintf(F, "- ");
- else
- fprintf(F, "- - none ");
- }
- else
- {
- fprintf(F, "%s ", CurVer.VerStr());
- if (Version >= 3)
- fprintf(F, "%s %s ", CurVer.Arch(), CurVer.MultiArchType());
- }
- // Show the compare operator between current and install version
- if (S.InstallVer != 0)
- {
- pkgCache::VerIterator const InstVer = S.InstVerIter(Cache);
- int Comp = 2;
- if (CurVer.end() == false)
- Comp = InstVer.CompareVer(CurVer);
- if (Comp < 0)
- fprintf(F,"> ");
- else if (Comp == 0)
- fprintf(F,"= ");
- else if (Comp > 0)
- fprintf(F,"< ");
- fprintf(F, "%s ", InstVer.VerStr());
- if (Version >= 3)
- fprintf(F, "%s %s ", InstVer.Arch(), InstVer.MultiArchType());
- }
- else
- {
- if (Version <= 2)
- fprintf(F, "> - ");
- else
- fprintf(F, "> - - none ");
- }
- // Show the filename/operation
- if (I->Op == Item::Install)
- {
- // No errors here..
- if (I->File[0] != '/')
- fprintf(F,"**ERROR**\n");
- else
- fprintf(F,"%s\n",I->File.c_str());
- }
- else if (I->Op == Item::Configure)
- fprintf(F,"**CONFIGURE**\n");
- else if (I->Op == Item::Remove ||
- I->Op == Item::Purge)
- fprintf(F,"**REMOVE**\n");
-
- if (ferror(F) != 0)
- return false;
- }
- return true;
- }
- /*}}}*/
- // DPkgPM::RunScriptsWithPkgs - Run scripts with package names on stdin /*{{{*/
- // ---------------------------------------------------------------------
- /* This looks for a list of scripts to run from the configuration file
- each one is run and is fed on standard input a list of all .deb files
- that are due to be installed. */
- bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
- {
- bool result = true;
- Configuration::Item const *Opts = _config->Tree(Cnf);
- if (Opts == 0 || Opts->Child == 0)
- return true;
- Opts = Opts->Child;
- sighandler_t old_sigpipe = signal(SIGPIPE, SIG_IGN);
-
- unsigned int Count = 1;
- for (; Opts != 0; Opts = Opts->Next, Count++)
- {
- if (Opts->Value.empty() == true)
- continue;
- if(_config->FindB("Debug::RunScripts", false) == true)
- std::clog << "Running external script with list of all .deb file: '"
- << Opts->Value << "'" << std::endl;
- // Determine the protocol version
- string OptSec = Opts->Value;
- string::size_type Pos;
- if ((Pos = OptSec.find(' ')) == string::npos || Pos == 0)
- Pos = OptSec.length();
- OptSec = "DPkg::Tools::Options::" + string(Opts->Value.c_str(),Pos);
-
- unsigned int Version = _config->FindI(OptSec+"::Version",1);
- unsigned int InfoFD = _config->FindI(OptSec + "::InfoFD", STDIN_FILENO);
-
- // Create the pipes
- std::set<int> KeepFDs;
- MergeKeepFdsFromConfiguration(KeepFDs);
- int Pipes[2];
- if (pipe(Pipes) != 0) {
- result = _error->Errno("pipe","Failed to create IPC pipe to subprocess");
- break;
- }
- if (InfoFD != (unsigned)Pipes[0])
- SetCloseExec(Pipes[0],true);
- else
- KeepFDs.insert(Pipes[0]);
- SetCloseExec(Pipes[1],true);
- // Purified Fork for running the script
- pid_t Process = ExecFork(KeepFDs);
- if (Process == 0)
- {
- // Setup the FDs
- dup2(Pipes[0], InfoFD);
- SetCloseExec(STDOUT_FILENO,false);
- SetCloseExec(STDIN_FILENO,false);
- SetCloseExec(STDERR_FILENO,false);
- string hookfd;
- strprintf(hookfd, "%d", InfoFD);
- setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1);
- dpkgChrootDirectory();
- const char *Args[4];
- Args[0] = "/bin/sh";
- Args[1] = "-c";
- Args[2] = Opts->Value.c_str();
- Args[3] = 0;
- execv(Args[0],(char **)Args);
- _exit(100);
- }
- close(Pipes[0]);
- FILE *F = fdopen(Pipes[1],"w");
- if (F == 0) {
- result = _error->Errno("fdopen","Faild to open new FD");
- break;
- }
-
- // Feed it the filenames.
- if (Version <= 1)
- {
- for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
- {
- // Only deal with packages to be installed from .deb
- if (I->Op != Item::Install)
- continue;
- // No errors here..
- if (I->File[0] != '/')
- continue;
-
- /* Feed the filename of each package that is pending install
- into the pipe. */
- fprintf(F,"%s\n",I->File.c_str());
- if (ferror(F) != 0)
- break;
- }
- }
- else
- SendPkgsInfo(F, Version);
- fclose(F);
-
- // Clean up the sub process
- if (ExecWait(Process,Opts->Value.c_str()) == false) {
- result = _error->Error("Failure running script %s",Opts->Value.c_str());
- break;
- }
- }
- signal(SIGPIPE, old_sigpipe);
- return result;
- }
- /*}}}*/
- // DPkgPM::DoStdin - Read stdin and pass to master pty /*{{{*/
- // ---------------------------------------------------------------------
- /*
- */
- void pkgDPkgPM::DoStdin(int master)
- {
- unsigned char input_buf[256] = {0,};
- ssize_t len = read(STDIN_FILENO, input_buf, sizeof(input_buf));
- if (len)
- FileFd::Write(master, input_buf, len);
- else
- d->stdin_is_dev_null = true;
- }
- /*}}}*/
- // DPkgPM::DoTerminalPty - Read the terminal pty and write log /*{{{*/
- // ---------------------------------------------------------------------
- /*
- * read the terminal pty and write log
- */
- void pkgDPkgPM::DoTerminalPty(int master)
- {
- unsigned char term_buf[1024] = {0,0, };
- ssize_t len=read(master, term_buf, sizeof(term_buf));
- if(len == -1 && errno == EIO)
- {
- // this happens when the child is about to exit, we
- // give it time to actually exit, otherwise we run
- // into a race so we sleep for half a second.
- struct timespec sleepfor = { 0, 500000000 };
- nanosleep(&sleepfor, NULL);
- return;
- }
- if(len <= 0)
- return;
- FileFd::Write(1, term_buf, len);
- if(d->term_out)
- fwrite(term_buf, len, sizeof(char), d->term_out);
- }
- /*}}}*/
- // DPkgPM::ProcessDpkgStatusBuf /*{{{*/
- // ---------------------------------------------------------------------
- /*
- */
- void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
- {
- bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false);
- if (Debug == true)
- std::clog << "got from dpkg '" << line << "'" << std::endl;
- /* dpkg sends strings like this:
- 'status: <pkg>: <pkg qstate>'
- 'status: <pkg>:<arch>: <pkg qstate>'
-
- 'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: pkg'
- 'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: trigger'
- */
- // we need to split on ": " (note the appended space) as the ':' is
- // part of the pkgname:arch information that dpkg sends
- //
- // A dpkg error message may contain additional ":" (like
- // "failed in buffer_write(fd) (10, ret=-1): backend dpkg-deb ..."
- // so we need to ensure to not split too much
- std::vector<std::string> list = StringSplit(line, ": ", 4);
- if(list.size() < 3)
- {
- if (Debug == true)
- std::clog << "ignoring line: not enough ':'" << std::endl;
- return;
- }
- // build the (prefix, pkgname, action) tuple, position of this
- // is different for "processing" or "status" messages
- std::string prefix = APT::String::Strip(list[0]);
- std::string pkgname;
- std::string action;
- // "processing" has the form "processing: action: pkg or trigger"
- // with action = ["install", "upgrade", "configure", "remove", "purge",
- // "disappear", "trigproc"]
- if (prefix == "processing")
- {
- pkgname = APT::String::Strip(list[2]);
- action = APT::String::Strip(list[1]);
- // we don't care for the difference (as dpkg doesn't really either)
- if (action == "upgrade")
- action = "install";
- }
- // "status" has the form: "status: pkg: state"
- // with state in ["half-installed", "unpacked", "half-configured",
- // "installed", "config-files", "not-installed"]
- else if (prefix == "status")
- {
- pkgname = APT::String::Strip(list[1]);
- action = APT::String::Strip(list[2]);
- } else {
- if (Debug == true)
- std::clog << "unknown prefix '" << prefix << "'" << std::endl;
- return;
- }
- /* handle the special cases first:
- errors look like this:
- '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
- and conffile-prompt like this
- 'status:/etc/compiz.conf/compiz.conf : conffile-prompt: 'current-conffile' 'new-conffile' useredited distedited
- */
- if (prefix == "status")
- {
- if(action == "error")
- {
- d->progress->Error(pkgname, PackagesDone, PackagesTotal,
- list[3]);
- pkgFailures++;
- WriteApportReport(pkgname.c_str(), list[3].c_str());
- return;
- }
- else if(action == "conffile-prompt")
- {
- d->progress->ConffilePrompt(pkgname, PackagesDone, PackagesTotal,
- list[3]);
- return;
- }
- }
- // at this point we know that we should have a valid pkgname, so build all
- // the info from it
- // dpkg does not always send "pkgname:arch" so we add it here if needed
- if (pkgname.find(":") == std::string::npos)
- {
- // find the package in the group that is touched by dpkg
- // if there are multiple pkgs dpkg would send us a full pkgname:arch
- pkgCache::GrpIterator Grp = Cache.FindGrp(pkgname);
- if (Grp.end() == false)
- {
- pkgCache::PkgIterator P = Grp.PackageList();
- for (; P.end() != true; P = Grp.NextPkg(P))
- {
- if(Cache[P].Keep() == false || Cache[P].ReInstall() == true)
- {
- pkgname = P.FullName();
- break;
- }
- }
- }
- }
- const char* const pkg = pkgname.c_str();
- std::string short_pkgname = StringSplit(pkgname, ":")[0];
- std::string arch = "";
- if (pkgname.find(":") != string::npos)
- arch = StringSplit(pkgname, ":")[1];
- std::string i18n_pkgname = pkgname;
- if (arch.size() != 0)
- strprintf(i18n_pkgname, "%s (%s)", short_pkgname.c_str(), arch.c_str());
- // 'processing' from dpkg looks like
- // 'processing: action: pkg'
- if(prefix == "processing")
- {
- const std::pair<const char *, const char *> * const iter =
- std::find_if(PackageProcessingOpsBegin,
- PackageProcessingOpsEnd,
- MatchProcessingOp(action.c_str()));
- if(iter == PackageProcessingOpsEnd)
- {
- if (Debug == true)
- std::clog << "ignoring unknown action: " << action << std::endl;
- return;
- }
- std::string msg;
- strprintf(msg, _(iter->second), i18n_pkgname.c_str());
- d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
- // FIXME: this needs a muliarch testcase
- // FIXME2: is "pkgname" here reliable with dpkg only sending us
- // short pkgnames?
- if (action == "disappear")
- handleDisappearAction(pkgname);
- return;
- }
- if (prefix == "status")
- {
- vector<struct DpkgState> const &states = PackageOps[pkg];
- if(PackageOpsDone[pkg] < states.size())
- {
- char const * const next_action = states[PackageOpsDone[pkg]].state;
- if (next_action && Debug == true)
- std::clog << "(parsed from dpkg) pkg: " << short_pkgname
- << " action: " << action << " (expected: '" << next_action << "' "
- << PackageOpsDone[pkg] << " of " << states.size() << ")" << endl;
- // check if the package moved to the next dpkg state
- if(next_action && (action == next_action))
- {
- // only read the translation if there is actually a next action
- char const * const translation = _(states[PackageOpsDone[pkg]].str);
- // we moved from one dpkg state to a new one, report that
- ++PackageOpsDone[pkg];
- ++PackagesDone;
- std::string msg;
- strprintf(msg, translation, i18n_pkgname.c_str());
- d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
- }
- }
- }
- }
- /*}}}*/
- // DPkgPM::handleDisappearAction /*{{{*/
- void pkgDPkgPM::handleDisappearAction(string const &pkgname)
- {
- pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
- if (unlikely(Pkg.end() == true))
- return;
- // record the package name for display and stuff later
- disappearedPkgs.insert(Pkg.FullName(true));
- // the disappeared package was auto-installed - nothing to do
- if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
- return;
- pkgCache::VerIterator PkgVer = Cache[Pkg].InstVerIter(Cache);
- if (unlikely(PkgVer.end() == true))
- return;
- /* search in the list of dependencies for (Pre)Depends,
- check if this dependency has a Replaces on our package
- and if so transfer the manual installed flag to it */
- for (pkgCache::DepIterator Dep = PkgVer.DependsList(); Dep.end() != true; ++Dep)
- {
- if (Dep->Type != pkgCache::Dep::Depends &&
- Dep->Type != pkgCache::Dep::PreDepends)
- continue;
- pkgCache::PkgIterator Tar = Dep.TargetPkg();
- if (unlikely(Tar.end() == true))
- continue;
- // the package is already marked as manual
- if ((Cache[Tar].Flags & pkgCache::Flag::Auto) != pkgCache::Flag::Auto)
- continue;
- pkgCache::VerIterator TarVer = Cache[Tar].InstVerIter(Cache);
- if (TarVer.end() == true)
- continue;
- for (pkgCache::DepIterator Rep = TarVer.DependsList(); Rep.end() != true; ++Rep)
- {
- if (Rep->Type != pkgCache::Dep::Replaces)
- continue;
- if (Pkg != Rep.TargetPkg())
- continue;
- // okay, they are strongly connected - transfer manual-bit
- if (Debug == true)
- std::clog << "transfer manual-bit from disappeared »" << pkgname << "« to »" << Tar.FullName() << "«" << std::endl;
- Cache[Tar].Flags &= ~Flag::Auto;
- break;
- }
- }
- }
- /*}}}*/
- // DPkgPM::DoDpkgStatusFd /*{{{*/
- // ---------------------------------------------------------------------
- /*
- */
- void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
- {
- char *p, *q;
- int len;
- len=read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], sizeof(d->dpkgbuf)-d->dpkgbuf_pos);
- d->dpkgbuf_pos += len;
- if(len <= 0)
- return;
- // process line by line if we have a buffer
- p = q = d->dpkgbuf;
- while((q=(char*)memchr(p, '\n', d->dpkgbuf+d->dpkgbuf_pos-p)) != NULL)
- {
- *q = 0;
- ProcessDpkgStatusLine(p);
- p=q+1; // continue with next line
- }
- // now move the unprocessed bits (after the final \n that is now a 0x0)
- // to the start and update d->dpkgbuf_pos
- p = (char*)memrchr(d->dpkgbuf, 0, d->dpkgbuf_pos);
- if(p == NULL)
- return;
- // we are interessted in the first char *after* 0x0
- p++;
- // move the unprocessed tail to the start and update pos
- memmove(d->dpkgbuf, p, p-d->dpkgbuf);
- d->dpkgbuf_pos = d->dpkgbuf+d->dpkgbuf_pos-p;
- }
- /*}}}*/
- // DPkgPM::WriteHistoryTag /*{{{*/
- void pkgDPkgPM::WriteHistoryTag(string const &tag, string value)
- {
- size_t const length = value.length();
- if (length == 0)
- return;
- // poor mans rstrip(", ")
- if (value[length-2] == ',' && value[length-1] == ' ')
- value.erase(length - 2, 2);
- fprintf(d->history_out, "%s: %s\n", tag.c_str(), value.c_str());
- } /*}}}*/
- // DPkgPM::OpenLog /*{{{*/
- bool pkgDPkgPM::OpenLog()
- {
- string const logdir = _config->FindDir("Dir::Log");
- if(CreateAPTDirectoryIfNeeded(logdir, logdir) == false)
- // FIXME: use a better string after freeze
- return _error->Error(_("Directory '%s' missing"), logdir.c_str());
- // get current time
- char timestr[200];
- time_t const t = time(NULL);
- struct tm const * const tmp = localtime(&t);
- strftime(timestr, sizeof(timestr), "%F %T", tmp);
- // open terminal log
- string const logfile_name = flCombine(logdir,
- _config->Find("Dir::Log::Terminal"));
- if (!logfile_name.empty())
- {
- d->term_out = fopen(logfile_name.c_str(),"a");
- if (d->term_out == NULL)
- return _error->WarningE("OpenLog", _("Could not open file '%s'"), logfile_name.c_str());
- setvbuf(d->term_out, NULL, _IONBF, 0);
- SetCloseExec(fileno(d->term_out), true);
- if (getuid() == 0) // if we aren't root, we can't chown a file, so don't try it
- {
- struct passwd *pw = getpwnam("root");
- struct group *gr = getgrnam("adm");
- if (pw != NULL && gr != NULL && chown(logfile_name.c_str(), pw->pw_uid, gr->gr_gid) != 0)
- _error->WarningE("OpenLog", "chown to root:adm of file %s failed", logfile_name.c_str());
- }
- if (chmod(logfile_name.c_str(), 0640) != 0)
- _error->WarningE("OpenLog", "chmod 0640 of file %s failed", logfile_name.c_str());
- fprintf(d->term_out, "\nLog started: %s\n", timestr);
- }
- // write your history
- string const history_name = flCombine(logdir,
- _config->Find("Dir::Log::History"));
- if (!history_name.empty())
- {
- d->history_out = fopen(history_name.c_str(),"a");
- if (d->history_out == NULL)
- return _error->WarningE("OpenLog", _("Could not open file '%s'"), history_name.c_str());
- SetCloseExec(fileno(d->history_out), true);
- chmod(history_name.c_str(), 0644);
- fprintf(d->history_out, "\nStart-Date: %s\n", timestr);
- string remove, purge, install, reinstall, upgrade, downgrade;
- for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
- {
- enum { CANDIDATE, CANDIDATE_AUTO, CURRENT_CANDIDATE, CURRENT } infostring;
- string *line = NULL;
- #define HISTORYINFO(X, Y) { line = &X; infostring = Y; }
- if (Cache[I].NewInstall() == true)
- HISTORYINFO(install, CANDIDATE_AUTO)
- else if (Cache[I].ReInstall() == true)
- HISTORYINFO(reinstall, CANDIDATE)
- else if (Cache[I].Upgrade() == true)
- HISTORYINFO(upgrade, CURRENT_CANDIDATE)
- else if (Cache[I].Downgrade() == true)
- HISTORYINFO(downgrade, CURRENT_CANDIDATE)
- else if (Cache[I].Delete() == true)
- HISTORYINFO((Cache[I].Purge() ? purge : remove), CURRENT)
- else
- continue;
- #undef HISTORYINFO
- line->append(I.FullName(false)).append(" (");
- switch (infostring) {
- case CANDIDATE: line->append(Cache[I].CandVersion); break;
- case CANDIDATE_AUTO:
- line->append(Cache[I].CandVersion);
- if ((Cache[I].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
- line->append(", automatic");
- break;
- case CURRENT_CANDIDATE: line->append(Cache[I].CurVersion).append(", ").append(Cache[I].CandVersion); break;
- case CURRENT: line->append(Cache[I].CurVersion); break;
- }
- line->append("), ");
- }
- if (_config->Exists("Commandline::AsString") == true)
- WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));
- WriteHistoryTag("Install", install);
- WriteHistoryTag("Reinstall", reinstall);
- WriteHistoryTag("Upgrade", upgrade);
- WriteHistoryTag("Downgrade",downgrade);
- WriteHistoryTag("Remove",remove);
- WriteHistoryTag("Purge",purge);
- fflush(d->history_out);
- }
-
- return true;
- }
- /*}}}*/
- // DPkg::CloseLog /*{{{*/
- bool pkgDPkgPM::CloseLog()
- {
- char timestr[200];
- time_t t = time(NULL);
- struct tm *tmp = localtime(&t);
- strftime(timestr, sizeof(timestr), "%F %T", tmp);
- if(d->term_out)
- {
- fprintf(d->term_out, "Log ended: ");
- fprintf(d->term_out, "%s", timestr);
- fprintf(d->term_out, "\n");
- fclose(d->term_out);
- }
- d->term_out = NULL;
- if(d->history_out)
- {
- if (disappearedPkgs.empty() == false)
- {
- string disappear;
- for (std::set<std::string>::const_iterator d = disappearedPkgs.begin();
- d != disappearedPkgs.end(); ++d)
- {
- pkgCache::PkgIterator P = Cache.FindPkg(*d);
- disappear.append(*d);
- if (P.end() == true)
- disappear.append(", ");
- else
- disappear.append(" (").append(Cache[P].CurVersion).append("), ");
- }
- WriteHistoryTag("Disappeared", disappear);
- }
- if (d->dpkg_error.empty() == false)
- fprintf(d->history_out, "Error: %s\n", d->dpkg_error.c_str());
- fprintf(d->history_out, "End-Date: %s\n", timestr);
- fclose(d->history_out);
- }
- d->history_out = NULL;
- return true;
- }
- /*}}}*/
- /*}}}*/
- /*{{{*/
- // This implements a racy version of pselect for those architectures
- // that don't have a working implementation.
- // FIXME: Probably can be removed on Lenny+1
- static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
- fd_set *exceptfds, const struct timespec *timeout,
- const sigset_t *sigmask)
- {
- sigset_t origmask;
- struct timeval tv;
- int retval;
- tv.tv_sec = timeout->tv_sec;
- tv.tv_usec = timeout->tv_nsec/1000;
- sigprocmask(SIG_SETMASK, sigmask, &origmask);
- retval = select(nfds, readfds, writefds, exceptfds, &tv);
- sigprocmask(SIG_SETMASK, &origmask, 0);
- return retval;
- }
- /*}}}*/
- // DPkgPM::BuildPackagesProgressMap /*{{{*/
- void pkgDPkgPM::BuildPackagesProgressMap()
- {
- // map the dpkg states to the operations that are performed
- // (this is sorted in the same way as Item::Ops)
- static const struct DpkgState DpkgStatesOpMap[][7] = {
- // Install operation
- {
- {"half-installed", N_("Preparing %s")},
- {"unpacked", N_("Unpacking %s") },
- {NULL, NULL}
- },
- // Configure operation
- {
- {"unpacked",N_("Preparing to configure %s") },
- {"half-configured", N_("Configuring %s") },
- { "installed", N_("Installed %s")},
- {NULL, NULL}
- },
- // Remove operation
- {
- {"half-configured", N_("Preparing for removal of %s")},
- {"half-installed", N_("Removing %s")},
- {"config-files", N_("Removed %s")},
- {NULL, NULL}
- },
- // Purge operation
- {
- {"config-files", N_("Preparing to completely remove %s")},
- {"not-installed", N_("Completely removed %s")},
- {NULL, NULL}
- },
- };
- // init the PackageOps map, go over the list of packages that
- // that will be [installed|configured|removed|purged] and add
- // them to the PackageOps map (the dpkg states it goes through)
- // and the PackageOpsTranslations (human readable strings)
- for (vector<Item>::const_iterator I = List.begin(); I != List.end(); ++I)
- {
- if((*I).Pkg.end() == true)
- continue;
- string const name = (*I).Pkg.FullName();
- PackageOpsDone[name] = 0;
- for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL; ++i)
- {
- PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
- PackagesTotal++;
- }
- }
- /* one extra: We don't want the progress bar to reach 100%, especially not
- if we call dpkg --configure --pending and process a bunch of triggers
- while showing 100%. Also, spindown takes a while, so never reaching 100%
- is way more correct than reaching 100% while still doing stuff even if
- doing it this way is slightly bending the rules */
- ++PackagesTotal;
- }
- /*}}}*/
- bool pkgDPkgPM::Go(int StatusFd)
- {
- APT::Progress::PackageManager *progress = NULL;
- if (StatusFd == -1)
- progress = APT::Progress::PackageManagerProgressFactory();
- else
- progress = new APT::Progress::PackageManagerProgressFd(StatusFd);
-
- return Go(progress);
- }
- void pkgDPkgPM::StartPtyMagic()
- {
- if (_config->FindB("Dpkg::Use-Pty", true) == false)
- {
- d->master = -1;
- if (d->slave != NULL)
- free(d->slave);
- d->slave = NULL;
- return;
- }
- if (isatty(STDIN_FILENO) == 0)
- d->direct_stdin = true;
- _error->PushToStack();
- d->master = posix_openpt(O_RDWR | O_NOCTTY);
- if (d->master == -1)
- _error->Errno("posix_openpt", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
- else if (unlockpt(d->master) == -1)
- _error->Errno("unlockpt", "Unlocking the slave of master fd %d failed!", d->master);
- else
- {
- char const * const slave_name = ptsname(d->master);
- if (slave_name == NULL)
- _error->Errno("ptsname", "Getting name for slave of master fd %d failed!", d->master);
- else
- {
- d->slave = strdup(slave_name);
- if (d->slave == NULL)
- _error->Errno("strdup", "Copying name %s for slave of master fd %d failed!", slave_name, d->master);
- else if (grantpt(d->master) == -1)
- _error->Errno("grantpt", "Granting access to slave %s based on master fd %d failed!", slave_name, d->master);
- else if (tcgetattr(STDIN_FILENO, &d->tt) == 0)
- {
- d->tt_is_valid = true;
- struct termios raw_tt;
- // copy window size of stdout if its a 'good' terminal
- if (tcgetattr(STDOUT_FILENO, &raw_tt) == 0)
- {
- struct winsize win;
- if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) < 0)
- _error->Errno("ioctl", "Getting TIOCGWINSZ from stdout failed!");
- if (ioctl(d->master, TIOCSWINSZ, &win) < 0)
- _error->Errno("ioctl", "Setting TIOCSWINSZ for master fd %d failed!", d->master);
- }
- if (tcsetattr(d->master, TCSANOW, &d->tt) == -1)
- _error->Errno("tcsetattr", "Setting in Start via TCSANOW for master fd %d failed!", d->master);
- raw_tt = d->tt;
- cfmakeraw(&raw_tt);
- raw_tt.c_lflag &= ~ECHO;
- raw_tt.c_lflag |= ISIG;
- // block SIGTTOU during tcsetattr to prevent a hang if
- // the process is a member of the background process group
- // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
- sigemptyset(&d->sigmask);
- sigaddset(&d->sigmask, SIGTTOU);
- sigprocmask(SIG_BLOCK,&d->sigmask, &d->original_sigmask);
- if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw_tt) == -1)
- _error->Errno("tcsetattr", "Setting in Start via TCSAFLUSH for stdin failed!");
- sigprocmask(SIG_SETMASK, &d->original_sigmask, NULL);
- }
- if (d->slave != NULL)
- {
- /* on linux, closing (and later reopening) all references to the slave
- makes the slave a death end, so we open it here to have one open all
- the time. We could use this fd in SetupSlavePtyMagic() for linux, but
- on kfreebsd we get an incorrect ("step like") output then while it has
- no problem with closing all references… so to avoid platform specific
- code here we combine both and be happy once more */
- d->protect_slave_from_dying = open(d->slave, O_RDWR | O_CLOEXEC | O_NOCTTY);
- }
- }
- }
- if (_error->PendingError() == true)
- {
- if (d->master != -1)
- {
- close(d->master);
- d->master = -1;
- }
- if (d->slave != NULL)
- {
- free(d->slave);
- d->slave = NULL;
- }
- _error->DumpErrors(std::cerr);
- }
- _error->RevertToStack();
- }
- void pkgDPkgPM::SetupSlavePtyMagic()
- {
- if(d->master == -1 || d->slave == NULL)
- return;
- if (close(d->master) == -1)
- _error->FatalE("close", "Closing master %d in child failed!", d->master);
- d->master = -1;
- if (setsid() == -1)
- _error->FatalE("setsid", "Starting a new session for child failed!");
- int const slaveFd = open(d->slave, O_RDWR | O_NOCTTY);
- if (slaveFd == -1)
- _error->FatalE("open", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
- else if (ioctl(slaveFd, TIOCSCTTY, 0) < 0)
- _error->FatalE("ioctl", "Setting TIOCSCTTY for slave fd %d failed!", slaveFd);
- else
- {
- unsigned short i = 0;
- if (d->direct_stdin == true)
- ++i;
- for (; i < 3; ++i)
- if (dup2(slaveFd, i) == -1)
- _error->FatalE("dup2", "Dupping %d to %d in child failed!", slaveFd, i);
- if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSANOW, &d->tt) < 0)
- _error->FatalE("tcsetattr", "Setting in Setup via TCSANOW for slave fd %d failed!", slaveFd);
- }
- if (slaveFd != -1)
- close(slaveFd);
- }
- void pkgDPkgPM::StopPtyMagic()
- {
- if (d->slave != NULL)
- free(d->slave);
- d->slave = NULL;
- if (d->protect_slave_from_dying != -1)
- {
- close(d->protect_slave_from_dying);
- d->protect_slave_from_dying = -1;
- }
- if(d->master >= 0)
- {
- if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSAFLUSH, &d->tt) == -1)
- _error->FatalE("tcsetattr", "Setting in Stop via TCSAFLUSH for stdin failed!");
- close(d->master);
- d->master = -1;
- }
- }
- // DPkgPM::Go - Run the sequence /*{{{*/
- // ---------------------------------------------------------------------
- /* This globs the operations and calls dpkg
- *
- * If it is called with a progress object apt will report the install
- * progress to this object. It maps the dpkg states a package goes
- * through to human readable (and i10n-able)
- * names and calculates a percentage for each step.
- */
- bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
- {
- pkgPackageManager::SigINTStop = false;
- d->progress = progress;
- // Generate the base argument list for dpkg
- unsigned long StartSize = 0;
- std::vector<const char *> Args;
- std::string DpkgExecutable = getDpkgExecutable();
- Args.push_back(DpkgExecutable.c_str());
- StartSize += DpkgExecutable.length();
- // Stick in any custom dpkg options
- Configuration::Item const *Opts = _config->Tree("DPkg::Options");
- if (Opts != 0)
- {
- Opts = Opts->Child;
- for (; Opts != 0; Opts = Opts->Next)
- {
- if (Opts->Value.empty() == true)
- continue;
- Args.push_back(Opts->Value.c_str());
- StartSize += Opts->Value.length();
- }
- }
- size_t const BaseArgs = Args.size();
- // we need to detect if we can qualify packages with the architecture or not
- Args.push_back("--assert-multi-arch");
- Args.push_back(NULL);
- pid_t dpkgAssertMultiArch = ExecFork();
- if (dpkgAssertMultiArch == 0)
- {
- dpkgChrootDirectory();
- // redirect everything to the ultimate sink as we only need the exit-status
- int const nullfd = open("/dev/null", O_RDONLY);
- dup2(nullfd, STDIN_FILENO);
- dup2(nullfd, STDOUT_FILENO);
- dup2(nullfd, STDERR_FILENO);
- execvp(Args[0], (char**) &Args[0]);
- _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
- _exit(2);
- }
- fd_set rfds;
- struct timespec tv;
- // FIXME: do we really need this limit when we have MaxArgBytes?
- unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",32*1024);
- // try to figure out the max environment size
- int OSArgMax = sysconf(_SC_ARG_MAX);
- if(OSArgMax < 0)
- OSArgMax = 32*1024;
- OSArgMax -= EnvironmentSize() - 2*1024;
- unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes", OSArgMax);
- bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false);
- if (RunScripts("DPkg::Pre-Invoke") == false)
- return false;
- if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
- return false;
- // support subpressing of triggers processing for special
- // cases like d-i that runs the triggers handling manually
- bool const TriggersPending = _config->FindB("DPkg::TriggersPending", false);
- if (_config->FindB("DPkg::ConfigurePending", true) == true)
- List.push_back(Item(Item::ConfigurePending, PkgIterator()));
- // for the progress
- BuildPackagesProgressMap();
- d->stdin_is_dev_null = false;
- // create log
- OpenLog();
- bool dpkgMultiArch = false;
- if (dpkgAssertMultiArch > 0)
- {
- int Status = 0;
- while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
- {
- if (errno == EINTR)
- continue;
- _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
- break;
- }
- if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
- dpkgMultiArch = true;
- }
- // start pty magic before the loop
- StartPtyMagic();
- // Tell the progress that its starting and fork dpkg
- d->progress->Start(d->master);
- // this loop is runs once per dpkg operation
- vector<Item>::const_iterator I = List.begin();
- while (I != List.end())
- {
- // Do all actions with the same Op in one run
- vector<Item>::const_iterator J = I;
- if (TriggersPending == true)
- for (; J != List.end(); ++J)
- {
- if (J->Op == I->Op)
- continue;
- if (J->Op != Item::TriggersPending)
- break;
- vector<Item>::const_iterator T = J + 1;
- if (T != List.end() && T->Op == I->Op)
- continue;
- break;
- }
- else
- for (; J != List.end() && J->Op == I->Op; ++J)
- /* nothing */;
- // keep track of allocated strings for multiarch package names
- std::vector<char *> Packages;
- // start with the baseset of arguments
- unsigned long Size = StartSize;
- Args.erase(Args.begin() + BaseArgs, Args.end());
- // Now check if we are within the MaxArgs limit
- //
- // this code below is problematic, because it may happen that
- // the argument list is split in a way that A depends on B
- // and they are in the same "--configure A B" run
- // - with the split they may now be configured in different
- // runs, using Immediate-Configure-All can help prevent this.
- if (J - I > (signed)MaxArgs)
- {
- J = I + MaxArgs;
- unsigned long const size = MaxArgs + 10;
- Args.reserve(size);
- Packages.reserve(size);
- }
- else
- {
- unsigned long const size = (J - I) + 10;
- Args.reserve(size);
- Packages.reserve(size);
- }
- int fd[2];
- if (pipe(fd) != 0)
- return _error->Errno("pipe","Failed to create IPC pipe to dpkg");
- #define ADDARG(X) Args.push_back(X); Size += strlen(X)
- #define ADDARGC(X) Args.push_back(X); Size += sizeof(X) - 1
- ADDARGC("--status-fd");
- char status_fd_buf[20];
- snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]);
- ADDARG(status_fd_buf);
- unsigned long const Op = I->Op;
- switch (I->Op)
- {
- case Item::Remove:
- ADDARGC("--force-depends");
- ADDARGC("--force-remove-essential");
- ADDARGC("--remove");
- break;
-
- case Item::Purge:
- ADDARGC("--force-depends");
- ADDARGC("--force-remove-essential");
- ADDARGC("--purge");
- break;
-
- case Item::Configure:
- ADDARGC("--configure");
- break;
- case Item::ConfigurePending:
- ADDARGC("--configure");
- ADDARGC("--pending");
- break;
- case Item::TriggersPending:
- ADDARGC("--triggers-only");
- ADDARGC("--pending");
- break;
- case Item::Install:
- ADDARGC("--unpack");
- ADDARGC("--auto-deconfigure");
- break;
- }
- if (NoTriggers == true && I->Op != Item::TriggersPending &&
- I->Op != Item::ConfigurePending)
- {
- ADDARGC("--no-triggers");
- }
- #undef ADDARGC
- // Write in the file or package names
- if (I->Op == Item::Install)
- {
- for (;I != J && Size < MaxArgBytes; ++I)
- {
- if (I->File[0] != '/')
- return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str());
- Args.push_back(I->File.c_str());
- Size += I->File.length();
- }
- }
- else
- {
- string const nativeArch = _config->Find("APT::Architecture");
- unsigned long const oldSize = I->Op == Item::Configure ? Size : 0;
- for (;I != J && Size < MaxArgBytes; ++I)
- {
- if((*I).Pkg.end() == true)
- continue;
- if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.FullName(true)) != disappearedPkgs.end())
- continue;
- // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
- if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch ||
- strcmp(I->Pkg.Arch(), "all") == 0 ||
- strcmp(I->Pkg.Arch(), "none") == 0))
- {
- char const * const name = I->Pkg.Name();
- ADDARG(name);
- }
- else
- {
- pkgCache::VerIterator PkgVer;
- std::string name = I->Pkg.Name();
- if (Op == Item::Remove || Op == Item::Purge)
- {
- PkgVer = I->Pkg.CurrentVer();
- if(PkgVer.end() == true)
- PkgVer = FindNowVersion(I->Pkg);
- }
- else
- PkgVer = Cache[I->Pkg].InstVerIter(Cache);
- if (strcmp(I->Pkg.Arch(), "none") == 0)
- ; // never arch-qualify a package without an arch
- else if (PkgVer.end() == false)
- name.append(":").append(PkgVer.Arch());
- else
- _error->Warning("Can not find PkgVer for '%s'", name.c_str());
- char * const fullname = strdup(name.c_str());
- Packages.push_back(fullname);
- ADDARG(fullname);
- }
- }
- // skip configure action if all sheduled packages disappeared
- if (oldSize == Size)
- continue;
- }
- #undef ADDARG
- J = I;
-
- if (_config->FindB("Debug::pkgDPkgPM",false) == true)
- {
- for (std::vector<const char *>::const_iterator a = Args.begin();
- a != Args.end(); ++a)
- clog << *a << ' ';
- clog << endl;
- for (std::vector<char *>::const_iterator p = Packages.begin();
- p != Packages.end(); ++p)
- free(*p);
- Packages.clear();
- continue;
- }
- Args.push_back(NULL);
- cout << flush;
- clog << flush;
- cerr << flush;
- /* Mask off sig int/quit. We do this because dpkg also does when
- it forks scripts. What happens is that when you hit ctrl-c it sends
- it to all processes in the group. Since dpkg ignores the signal
- it doesn't die but we do! So we must also ignore it */
- sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
- sighandler_t old_SIGINT = signal(SIGINT,SigINT);
-
- // Check here for any SIGINT
- if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install))
- break;
-
-
- // ignore SIGHUP as well (debian #463030)
- sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
- // now run dpkg
- d->progress->StartDpkg();
- std::set<int> KeepFDs;
- KeepFDs.insert(fd[1]);
- MergeKeepFdsFromConfiguration(KeepFDs);
- pid_t Child = ExecFork(KeepFDs);
- if (Child == 0)
- {
- // This is the child
- SetupSlavePtyMagic();
- close(fd[0]); // close the read end of the pipe
- dpkgChrootDirectory();
- if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
- _exit(100);
- if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO))
- {
- int Flags;
- int dummy = 0;
- if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0)
- _exit(100);
-
- // Discard everything in stdin before forking dpkg
- if (fcntl(STDIN_FILENO,F_SETFL,Flags | O_NONBLOCK) < 0)
- _exit(100);
-
- while (read(STDIN_FILENO,&dummy,1) == 1);
-
- if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0)
- _exit(100);
- }
- execvp(Args[0], (char**) &Args[0]);
- cerr << "Could not exec dpkg!" << endl;
- _exit(100);
- }
- // apply ionice
- if (_config->FindB("DPkg::UseIoNice", false) == true)
- ionice(Child);
- // Wait for dpkg
- int Status = 0;
- // we read from dpkg here
- int const _dpkgin = fd[0];
- close(fd[1]); // close the write end of the pipe
- // setups fds
- sigemptyset(&d->sigmask);
- sigprocmask(SIG_BLOCK,&d->sigmask,&d->original_sigmask);
- /* free vectors (and therefore memory) as we don't need the included data anymore */
- for (std::vector<char *>::const_iterator p = Packages.begin();
- p != Packages.end(); ++p)
- free(*p);
- Packages.clear();
- // the result of the waitpid call
- int res;
- int select_ret;
- while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
- if(res < 0) {
- // FIXME: move this to a function or something, looks ugly here
- // error handling, waitpid returned -1
- if (errno == EINTR)
- continue;
- RunScripts("DPkg::Post-Invoke");
- // Restore sig int/quit
- signal(SIGQUIT,old_SIGQUIT);
- signal(SIGINT,old_SIGINT);
- signal(SIGHUP,old_SIGHUP);
- return _error->Errno("waitpid","Couldn't wait for subprocess");
- }
- // wait for input or output here
- FD_ZERO(&rfds);
- if (d->master >= 0 && d->direct_stdin == false && d->stdin_is_dev_null == false)
- FD_SET(STDIN_FILENO, &rfds);
- FD_SET(_dpkgin, &rfds);
- if(d->master >= 0)
- FD_SET(d->master, &rfds);
- tv.tv_sec = 0;
- tv.tv_nsec = d->progress->GetPulseInterval();
- select_ret = pselect(max(d->master, _dpkgin)+1, &rfds, NULL, NULL,
- &tv, &d->original_sigmask);
- if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS))
- select_ret = racy_pselect(max(d->master, _dpkgin)+1, &rfds, NULL,
- NULL, &tv, &d->original_sigmask);
- d->progress->Pulse();
- if (select_ret == 0)
- continue;
- else if (select_ret < 0 && errno == EINTR)
- continue;
- else if (select_ret < 0)
- {
- perror("select() returned error");
- continue;
- }
-
- if(d->master >= 0 && FD_ISSET(d->master, &rfds))
- DoTerminalPty(d->master);
- if(d->master >= 0 && FD_ISSET(0, &rfds))
- DoStdin(d->master);
- if(FD_ISSET(_dpkgin, &rfds))
- DoDpkgStatusFd(_dpkgin);
- }
- close(_dpkgin);
- // Restore sig int/quit
- signal(SIGQUIT,old_SIGQUIT);
- signal(SIGINT,old_SIGINT);
-
- signal(SIGHUP,old_SIGHUP);
- // Check for an error code.
- if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
- {
- // if it was set to "keep-dpkg-runing" then we won't return
- // here but keep the loop going and just report it as a error
- // for later
- bool const stopOnError = _config->FindB("Dpkg::StopOnError",true);
- if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV)
- strprintf(d->dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);
- else if (WIFEXITED(Status) != 0)
- strprintf(d->dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));
- else
- strprintf(d->dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);
- _error->Error("%s", d->dpkg_error.c_str());
- if(stopOnError)
- break;
- }
- }
- // dpkg is done at this point
- d->progress->Stop();
- StopPtyMagic();
- CloseLog();
- if (pkgPackageManager::SigINTStop)
- _error->Warning(_("Operation was interrupted before it could finish"));
- if (RunScripts("DPkg::Post-Invoke") == false)
- return false;
- if (_config->FindB("Debug::pkgDPkgPM",false) == false)
- {
- std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
- if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&
- unlink(oldpkgcache.c_str()) == 0)
- {
- std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
- if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
- {
- _error->PushToStack();
- pkgCacheFile CacheFile;
- CacheFile.BuildCaches(NULL, true);
- _error->RevertToStack();
- }
- }
- }
- Cache.writeStateFile(NULL);
- return d->dpkg_error.empty();
- }
- void SigINT(int /*sig*/) {
- pkgPackageManager::SigINTStop = true;
- }
- /*}}}*/
- // pkgDpkgPM::Reset - Dump the contents of the command list /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- void pkgDPkgPM::Reset()
- {
- List.erase(List.begin(),List.end());
- }
- /*}}}*/
- // pkgDpkgPM::WriteApportReport - write out error report pkg failure /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
- {
- // If apport doesn't exist or isn't installed do nothing
- // This e.g. prevents messages in 'universes' without apport
- pkgCache::PkgIterator apportPkg = Cache.FindPkg("apport");
- if (apportPkg.end() == true || apportPkg->CurrentVer == 0)
- return;
- string pkgname, reportfile, pkgver, arch;
- string::size_type pos;
- FILE *report;
- if (_config->FindB("Dpkg::ApportFailureReport", true) == false)
- {
- std::clog << "configured to not write apport reports" << std::endl;
- return;
- }
- // only report the first errors
- if(pkgFailures > _config->FindI("APT::Apport::MaxReports", 3))
- {
- std::clog << _("No apport report written because MaxReports is reached already") << std::endl;
- return;
- }
- // check if its not a follow up error
- const char *needle = dgettext("dpkg", "dependency problems - leaving unconfigured");
- if(strstr(errormsg, needle) != NULL) {
- std::clog << _("No apport report written because the error message indicates its a followup error from a previous failure.") << std::endl;
- return;
- }
- // do not report disk-full failures
- if(strstr(errormsg, strerror(ENOSPC)) != NULL) {
- std::clog << _("No apport report written because the error message indicates a disk full error") << std::endl;
- return;
- }
- // do not report out-of-memory failures
- if(strstr(errormsg, strerror(ENOMEM)) != NULL ||
- strstr(errormsg, "failed to allocate memory") != NULL) {
- std::clog << _("No apport report written because the error message indicates a out of memory error") << std::endl;
- return;
- }
- // do not report bugs regarding inaccessible local files
- if(strstr(errormsg, strerror(ENOENT)) != NULL ||
- strstr(errormsg, "cannot access archive") != NULL) {
- std::clog << _("No apport report written because the error message indicates an issue on the local system") << std::endl;
- return;
- }
- // do not report errors encountered when decompressing packages
- if(strstr(errormsg, "--fsys-tarfile returned error exit status 2") != NULL) {
- std::clog << _("No apport report written because the error message indicates an issue on the local system") << std::endl;
- return;
- }
- // do not report dpkg I/O errors, this is a format string, so we compare
- // the prefix and the suffix of the error with the dpkg error message
- vector<string> io_errors;
- io_errors.push_back(string("failed to read"));
- io_errors.push_back(string("failed to write"));
- io_errors.push_back(string("failed to seek"));
- io_errors.push_back(string("unexpected end of file or stream"));
- for (vector<string>::iterator I = io_errors.begin(); I != io_errors.end(); ++I)
- {
- vector<string> list = VectorizeString(dgettext("dpkg", (*I).c_str()), '%');
- if (list.size() > 1) {
- // we need to split %s, VectorizeString only allows char so we need
- // to kill the "s" manually
- if (list[1].size() > 1) {
- list[1].erase(0, 1);
- if(strstr(errormsg, list[0].c_str()) &&
- strstr(errormsg, list[1].c_str())) {
- std::clog << _("No apport report written because the error message indicates a dpkg I/O error") << std::endl;
- return;
- }
- }
- }
- }
- // get the pkgname and reportfile
- pkgname = flNotDir(pkgpath);
- pos = pkgname.find('_');
- if(pos != string::npos)
- pkgname = pkgname.substr(0, pos);
- // find the package versin and source package name
- pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
- if (Pkg.end() == true)
- return;
- pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
- if (Ver.end() == true)
- return;
- pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();
- // if the file exists already, we check:
- // - if it was reported already (touched by apport).
- // If not, we do nothing, otherwise
- // we overwrite it. This is the same behaviour as apport
- // - if we have a report with the same pkgversion already
- // then we skip it
- reportfile = flCombine("/var/crash",pkgname+".0.crash");
- if(FileExists(reportfile))
- {
- struct stat buf;
- char strbuf[255];
- // check atime/mtime
- stat(reportfile.c_str(), &buf);
- if(buf.st_mtime > buf.st_atime)
- return;
- // check if the existing report is the same version
- report = fopen(reportfile.c_str(),"r");
- while(fgets(strbuf, sizeof(strbuf), report) != NULL)
- {
- if(strstr(strbuf,"Package:") == strbuf)
- {
- char pkgname[255], version[255];
- if(sscanf(strbuf, "Package: %254s %254s", pkgname, version) == 2)
- if(strcmp(pkgver.c_str(), version) == 0)
- {
- fclose(report);
- return;
- }
- }
- }
- fclose(report);
- }
- // now write the report
- arch = _config->Find("APT::Architecture");
- report = fopen(reportfile.c_str(),"w");
- if(report == NULL)
- return;
- if(_config->FindB("DPkgPM::InitialReportOnly",false) == true)
- chmod(reportfile.c_str(), 0);
- else
- chmod(reportfile.c_str(), 0600);
- fprintf(report, "ProblemType: Package\n");
- fprintf(report, "Architecture: %s\n", arch.c_str());
- time_t now = time(NULL);
- fprintf(report, "Date: %s" , ctime(&now));
- fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str());
- fprintf(report, "SourcePackage: %s\n", Ver.SourcePkgName());
- fprintf(report, "ErrorMessage:\n %s\n", errormsg);
- // ensure that the log is flushed
- if(d->term_out)
- fflush(d->term_out);
- // attach terminal log it if we have it
- string logfile_name = _config->FindFile("Dir::Log::Terminal");
- if (!logfile_name.empty())
- {
- FILE *log = NULL;
- fprintf(report, "DpkgTerminalLog:\n");
- log = fopen(logfile_name.c_str(),"r");
- if(log != NULL)
- {
- char buf[1024];
- while( fgets(buf, sizeof(buf), log) != NULL)
- fprintf(report, " %s", buf);
- fprintf(report, " \n");
- fclose(log);
- }
- }
- // attach history log it if we have it
- string histfile_name = _config->FindFile("Dir::Log::History");
- if (!histfile_name.empty())
- {
- fprintf(report, "DpkgHistoryLog:\n");
- FILE* log = fopen(histfile_name.c_str(),"r");
- if(log != NULL)
- {
- char buf[1024];
- while( fgets(buf, sizeof(buf), log) != NULL)
- fprintf(report, " %s", buf);
- fclose(log);
- }
- }
- // log the ordering, see dpkgpm.h and the "Ops" enum there
- const char *ops_str[] = {
- "Install",
- "Configure",
- "Remove",
- "Purge",
- "ConfigurePending",
- "TriggersPending",
- };
- fprintf(report, "AptOrdering:\n");
- for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
- if ((*I).Pkg != NULL)
- fprintf(report, " %s: %s\n", (*I).Pkg.Name(), ops_str[(*I).Op]);
- else
- fprintf(report, " %s: %s\n", "NULL", ops_str[(*I).Op]);
- // attach dmesg log (to learn about segfaults)
- if (FileExists("/bin/dmesg"))
- {
- fprintf(report, "Dmesg:\n");
- FILE *log = popen("/bin/dmesg","r");
- if(log != NULL)
- {
- char buf[1024];
- while( fgets(buf, sizeof(buf), log) != NULL)
- fprintf(report, " %s", buf);
- pclose(log);
- }
- }
- // attach df -l log (to learn about filesystem status)
- if (FileExists("/bin/df"))
- {
- fprintf(report, "Df:\n");
- FILE *log = popen("/bin/df -l","r");
- if(log != NULL)
- {
- char buf[1024];
- while( fgets(buf, sizeof(buf), log) != NULL)
- fprintf(report, " %s", buf);
- pclose(log);
- }
- }
- fclose(report);
- }
- /*}}}*/
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