// Includes /*{{{*/ #include <config.h> #include <apt-pkg/cachefile.h> #include <apt-pkg/cacheset.h> #include <apt-pkg/cmndline.h> #include <apt-pkg/configuration.h> #include <apt-pkg/depcache.h> #include <apt-pkg/error.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/indexfile.h> #include <apt-pkg/macros.h> #include <apt-pkg/pkgcache.h> #include <apt-pkg/pkgrecords.h> #include <apt-pkg/pkgsystem.h> #include <apt-pkg/policy.h> #include <apt-pkg/sourcelist.h> #include <apt-pkg/strutl.h> #include <apt-pkg/tagfile.h> #include <apt-private/private-cacheset.h> #include <apt-private/private-output.h> #include <apt-private/private-show.h> #include <ostream> #include <string> #include <stdio.h> #include <unistd.h> #include <apti18n.h> /*}}}*/ static bool OpenPackagesFile(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/ FileFd &PkgF, pkgCache::VerFileIterator &Vf) { pkgCache const * const Cache = CacheFile.GetPkgCache(); if (unlikely(Cache == NULL)) return false; // Find an appropriate file Vf = V.FileList(); for (; Vf.end() == false; ++Vf) if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0) break; if (Vf.end() == true) Vf = V.FileList(); // Check and load the package list file pkgCache::PkgFileIterator I = Vf.File(); if (I.IsOk() == false) return _error->Error(_("Package file %s is out of sync."),I.FileName()); // Read the record return PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension); } /*}}}*/ static APT_PURE unsigned char const* skipDescriptionFields(unsigned char const * DescP)/*{{{*/ { char const * const TagName = "\nDescription"; size_t const TagLen = strlen(TagName); while ((DescP = (unsigned char*)strchr((char*)DescP, '\n')) != NULL) { if (DescP[1] == ' ') DescP += 2; else if (strncmp((char*)DescP, TagName, TagLen) == 0) DescP += TagLen; else break; } if (DescP != NULL) ++DescP; return DescP; } /*}}}*/ bool DisplayRecordV1(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/ std::ostream &out) { FileFd PkgF; pkgCache::VerFileIterator Vf; if (OpenPackagesFile(CacheFile, V, PkgF, Vf) == false) return false; pkgCache * const Cache = CacheFile.GetPkgCache(); if (unlikely(Cache == NULL)) return false; // Read the record (and ensure that it ends with a newline and NUL) unsigned char *Buffer = new unsigned char[Cache->HeaderP->MaxVerFileSize+2]; Buffer[Vf->Size] = '\n'; Buffer[Vf->Size+1] = '\0'; if (PkgF.Seek(Vf->Offset) == false || PkgF.Read(Buffer,Vf->Size) == false) { delete [] Buffer; return false; } // Get a pointer to start of Description field const unsigned char *DescP = (unsigned char*)strstr((char*)Buffer, "\nDescription"); if (DescP != NULL) ++DescP; else DescP = Buffer + Vf->Size; // Write all but Description size_t const length = DescP - Buffer; if (length != 0 && FileFd::Write(STDOUT_FILENO, Buffer, length) == false) { delete [] Buffer; return false; } // Show the right description pkgRecords Recs(*Cache); pkgCache::DescIterator Desc = V.TranslatedDescription(); if (Desc.end() == false) { pkgRecords::Parser &P = Recs.Lookup(Desc.FileList()); out << "Description" << ( (strcmp(Desc.LanguageCode(),"") != 0) ? "-" : "" ) << Desc.LanguageCode() << ": " << P.LongDesc(); out << std::endl << "Description-md5: " << Desc.md5() << std::endl; // Find the first field after the description (if there is any) DescP = skipDescriptionFields(DescP); } // else we have no translation, so we found a lonely Description-md5 -> don't skip it // write the rest of the buffer, but skip mixed in Descriptions* fields while (DescP != NULL) { const unsigned char * const Start = DescP; const unsigned char *End = (unsigned char*)strstr((char*)DescP, "\nDescription"); if (End == NULL) { End = &Buffer[Vf->Size]; DescP = NULL; } else { ++End; // get the newline into the output DescP = skipDescriptionFields(End + strlen("Description")); } size_t const length = End - Start; if (length != 0 && FileFd::Write(STDOUT_FILENO, Start, length) == false) { delete [] Buffer; return false; } } // write a final newline after the last field out << std::endl; delete [] Buffer; return true; } /*}}}*/ static bool DisplayRecordV2(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/ std::ostream &out) { FileFd PkgF; pkgCache::VerFileIterator Vf; if (OpenPackagesFile(CacheFile, V, PkgF, Vf) == false) return false; // Check and load the package list file pkgCache::PkgFileIterator I = Vf.File(); if (I.IsOk() == false) return _error->Error(_("Package file %s is out of sync."),I.FileName()); // find matching sources.list metaindex pkgSourceList *SrcList = CacheFile.GetSourceList(); pkgIndexFile *Index; if (SrcList->FindIndex(I, Index) == false && _system->FindIndex(I, Index) == false) return _error->Error("Can not find indexfile for Package %s (%s)", V.ParentPkg().Name(), V.VerStr()); std::string source_index_file = Index->Describe(true); // Read the record pkgTagSection Tags; pkgTagFile TagF(&PkgF, Vf->Size); if (TagF.Jump(Tags, Vf->Offset) == false) return _error->Error("Internal Error, Unable to parse a package record"); // make size nice std::string installed_size; if (Tags.FindULL("Installed-Size") > 0) strprintf(installed_size, "%sB", SizeToStr(Tags.FindULL("Installed-Size") * 1024).c_str()); else installed_size = _("unknown"); std::string package_size; if (Tags.FindULL("Size") > 0) strprintf(package_size, "%sB", SizeToStr(Tags.FindULL("Size")).c_str()); else package_size = _("unknown"); const char *manual_installed = nullptr; if (V.ParentPkg().CurrentVer() == V) { pkgDepCache *depCache = CacheFile.GetDepCache(); if (unlikely(depCache == nullptr)) return false; pkgDepCache::StateCache &state = (*depCache)[V.ParentPkg()]; manual_installed = !(state.Flags & pkgCache::Flag::Auto) ? "yes" : "no"; } // FIXME: add verbose that does not do the removal of the tags? std::vector<pkgTagSection::Tag> RW; // delete, apt-cache show has this info and most users do not care RW.push_back(pkgTagSection::Tag::Remove("MD5sum")); RW.push_back(pkgTagSection::Tag::Remove("SHA1")); RW.push_back(pkgTagSection::Tag::Remove("SHA256")); RW.push_back(pkgTagSection::Tag::Remove("SHA512")); RW.push_back(pkgTagSection::Tag::Remove("Filename")); RW.push_back(pkgTagSection::Tag::Remove("Multi-Arch")); RW.push_back(pkgTagSection::Tag::Remove("Architecture")); RW.push_back(pkgTagSection::Tag::Remove("Conffiles")); // we use the translated description RW.push_back(pkgTagSection::Tag::Remove("Description")); RW.push_back(pkgTagSection::Tag::Remove("Description-md5")); // improve RW.push_back(pkgTagSection::Tag::Rewrite("Package", V.ParentPkg().FullName(true))); RW.push_back(pkgTagSection::Tag::Rewrite("Installed-Size", installed_size)); RW.push_back(pkgTagSection::Tag::Remove("Size")); RW.push_back(pkgTagSection::Tag::Rewrite("Download-Size", package_size)); // add if (manual_installed != nullptr) RW.push_back(pkgTagSection::Tag::Rewrite("APT-Manual-Installed", manual_installed)); RW.push_back(pkgTagSection::Tag::Rewrite("APT-Sources", source_index_file)); FileFd stdoutfd; if (stdoutfd.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly, false) == false || Tags.Write(stdoutfd, TFRewritePackageOrder, RW) == false || stdoutfd.Close() == false) return _error->Error("Internal Error, Unable to parse a package record"); // write the description pkgCache * const Cache = CacheFile.GetPkgCache(); if (unlikely(Cache == NULL)) return false; pkgRecords Recs(*Cache); // FIXME: show (optionally) all available translations(?) pkgCache::DescIterator Desc = V.TranslatedDescription(); if (Desc.end() == false) { pkgRecords::Parser &P = Recs.Lookup(Desc.FileList()); out << "Description: " << P.LongDesc(); } // write a final newline (after the description) out << std::endl << std::endl; return true; } /*}}}*/ bool ShowPackage(CommandLine &CmdL) /*{{{*/ { pkgCacheFile CacheFile; CacheSetHelperVirtuals helper(true, GlobalError::NOTICE); APT::CacheSetHelper::VerSelector const select = _config->FindB("APT::Cache::AllVersions", true) ? APT::CacheSetHelper::ALL : APT::CacheSetHelper::CANDIDATE; if (select == APT::CacheSetHelper::CANDIDATE && CacheFile.GetDepCache() == nullptr) return false; APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper); int const ShowVersion = _config->FindI("APT::Cache::Show::Version", 1); for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver) if (ShowVersion <= 1) { if (DisplayRecordV1(CacheFile, Ver, std::cout) == false) return false; } else if (DisplayRecordV2(CacheFile, Ver, c1out) == false) return false; if (select == APT::CacheSetHelper::CANDIDATE) { APT::VersionList const verset_all = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::CacheSetHelper::ALL, helper); int const records = verset_all.size() - verset.size(); if (records > 0) _error->Notice(P_("There is %i additional record. Please use the '-a' switch to see it", "There are %i additional records. Please use the '-a' switch to see them.", records), records); } if (_config->FindB("APT::Cache::ShowVirtuals", false) == true) for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin(); Pkg != helper.virtualPkgs.end(); ++Pkg) { c1out << "Package: " << Pkg.FullName(true) << std::endl; c1out << "State: " << _("not a real package (virtual)") << std::endl; // FIXME: show providers, see private-cacheset.h // CacheSetHelperAPTGet::showVirtualPackageErrors() } if (verset.empty() == true) { if (helper.virtualPkgs.empty() == true) return _error->Error(_("No packages found")); else _error->Notice(_("No packages found")); } return true; } /*}}}*/ static std::string Sha1FromString(std::string const &input) /*{{{*/ { // XXX: move to hashes.h: HashString::FromString() ? SHA1Summation sha1; sha1.Add(input.c_str(), input.length()); return sha1.Result().Value(); } /*}}}*/ bool ShowSrcPackage(CommandLine &CmdL) /*{{{*/ { pkgCacheFile CacheFile; pkgSourceList *List = CacheFile.GetSourceList(); if (unlikely(List == NULL)) return false; // Create the text record parsers pkgSrcRecords SrcRecs(*List); if (_error->PendingError() == true) return false; bool found = false; // avoid showing identical records std::set<std::string> seen; for (const char **I = CmdL.FileList + 1; *I != 0; I++) { SrcRecs.Restart(); pkgSrcRecords::Parser *Parse; bool found_this = false; while ((Parse = SrcRecs.Find(*I,false)) != 0) { // SrcRecs.Find() will find both binary and source names if (_config->FindB("APT::Cache::Only-Source", false) == true) if (Parse->Package() != *I) continue; std::string sha1str = Sha1FromString(Parse->AsStr()); if (std::find(seen.begin(), seen.end(), sha1str) == seen.end()) { std::cout << Parse->AsStr() << std::endl;; found = true; found_this = true; seen.insert(sha1str); } } if (found_this == false) { _error->Warning(_("Unable to locate package %s"),*I); continue; } } if (found == false) _error->Notice(_("No packages found")); return true; } /*}}}*/ // Policy - Show the results of the preferences file /*{{{*/ bool Policy(CommandLine &CmdL) { pkgCacheFile CacheFile; pkgSourceList const * const SrcList = CacheFile.GetSourceList(); if (unlikely(SrcList == nullptr)) return false; pkgCache * const Cache = CacheFile.GetPkgCache(); if (unlikely(Cache == nullptr)) return false; pkgPolicy * const Plcy = CacheFile.GetPolicy(); if (unlikely(Plcy == nullptr)) return false; // Print out all of the package files if (CmdL.FileList[1] == 0) { std::cout << _("Package files:") << std::endl; for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F.end() == false; ++F) { if (F.Flagged(pkgCache::Flag::NoPackages)) continue; // Locate the associated index files so we can derive a description pkgIndexFile *Indx; if (SrcList->FindIndex(F,Indx) == false && _system->FindIndex(F,Indx) == false) return _error->Error(_("Cache is out of sync, can't x-ref a package file")); printf("%4i %s\n", Plcy->GetPriority(F),Indx->Describe(true).c_str()); // Print the reference information for the package std::string Str = F.RelStr(); if (Str.empty() == false) printf(" release %s\n",F.RelStr().c_str()); if (F.Site() != 0 && F.Site()[0] != 0) printf(" origin %s\n",F.Site()); } // Show any packages have explicit pins std::cout << _("Pinned packages:") << std::endl; pkgCache::PkgIterator I = Cache->PkgBegin(); for (;I.end() != true; ++I) { for (pkgCache::VerIterator V = I.VersionList(); !V.end(); ++V) { auto Prio = Plcy->GetPriority(V, false); if (Prio == 0) continue; std::cout << " "; // Print the package name and the version we are forcing to ioprintf(std::cout, _("%s -> %s with priority %d\n"), I.FullName(true).c_str(), V.VerStr(), Prio); } } return true; } char const * const msgInstalled = _(" Installed: "); char const * const msgCandidate = _(" Candidate: "); short const InstalledLessCandidate = mbstowcs(NULL, msgInstalled, 0) - mbstowcs(NULL, msgCandidate, 0); short const deepInstalled = (InstalledLessCandidate < 0 ? (InstalledLessCandidate*-1) : 0) - 1; short const deepCandidate = (InstalledLessCandidate > 0 ? (InstalledLessCandidate) : 0) - 1; // Print out detailed information for each package APT::CacheSetHelper helper(true, GlobalError::NOTICE); APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1, helper); for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg) { std::cout << Pkg.FullName(true) << ":" << std::endl; // Installed version std::cout << msgInstalled << OutputInDepth(deepInstalled, " "); if (Pkg->CurrentVer == 0) std::cout << _("(none)") << std::endl; else std::cout << Pkg.CurrentVer().VerStr() << std::endl; // Candidate Version std::cout << msgCandidate << OutputInDepth(deepCandidate, " "); pkgCache::VerIterator V = Plcy->GetCandidateVer(Pkg); if (V.end() == true) std::cout << _("(none)") << std::endl; else std::cout << V.VerStr() << std::endl; // Show the priority tables std::cout << _(" Version table:") << std::endl; for (V = Pkg.VersionList(); V.end() == false; ++V) { if (Pkg.CurrentVer() == V) std::cout << " *** " << V.VerStr(); else std::cout << " " << V.VerStr(); std::cout << " " << Plcy->GetPriority(V) << std::endl; for (pkgCache::VerFileIterator VF = V.FileList(); VF.end() == false; ++VF) { // Locate the associated index files so we can derive a description pkgIndexFile *Indx; if (SrcList->FindIndex(VF.File(),Indx) == false && _system->FindIndex(VF.File(),Indx) == false) return _error->Error(_("Cache is out of sync, can't x-ref a package file")); printf(" %4i %s\n",Plcy->GetPriority(VF.File()), Indx->Describe(true).c_str()); } } } return true; } /*}}}*/