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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 09:59:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 09:59:37 +0000
commit76e2632459410dec81337edb6a9fee33c9a660f3 (patch)
treea73345df208eede4a4daad340515c9328f34625c /apt-private/private-show.cc
parentInitial commit. (diff)
downloadapt-76e2632459410dec81337edb6a9fee33c9a660f3.tar.xz
apt-76e2632459410dec81337edb6a9fee33c9a660f3.zip
Adding upstream version 2.7.12.upstream/2.7.12
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'apt-private/private-show.cc')
-rw-r--r--apt-private/private-show.cc591
1 files changed, 591 insertions, 0 deletions
diff --git a/apt-private/private-show.cc b/apt-private/private-show.cc
new file mode 100644
index 0000000..cefbd9b
--- /dev/null
+++ b/apt-private/private-show.cc
@@ -0,0 +1,591 @@
+// 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/hashes.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-keys.h>
+#include <apt-pkg/tagfile.h>
+
+#include <apt-private/private-cacheset.h>
+#include <apt-private/private-output.h>
+#include <apt-private/private-install.h>
+#include <apt-private/private-show.h>
+
+#include <cstdio>
+#include <ostream>
+#include <string>
+#include <unistd.h>
+
+#include <apti18n.h>
+ /*}}}*/
+
+pkgRecords::Parser &LookupParser(pkgRecords &Recs, pkgCache::VerIterator const &V, pkgCache::VerFileIterator &Vf) /*{{{*/
+{
+ Vf = V.FileList();
+ for (; Vf.end() == false; ++Vf)
+ if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0)
+ break;
+ if (Vf.end() == true)
+ Vf = V.FileList();
+ return Recs.Lookup(Vf);
+}
+ /*}}}*/
+static APT_PURE char const *skipDescription(char const *DescP, size_t const Length, bool fields) /*{{{*/
+{
+ auto const backup = DescP;
+ char const * const TagName = "\nDescription";
+ size_t const TagLen = strlen(TagName);
+ while ((DescP = static_cast<char const *>(memchr(DescP, '\n', Length - (DescP - backup)))) != nullptr)
+ {
+ if (DescP[1] == ' ')
+ DescP += 2;
+ else if (fields && strncmp((char *)DescP, TagName, TagLen) == 0)
+ DescP += TagLen;
+ else
+ break;
+ }
+ if (DescP != NULL)
+ ++DescP;
+ return DescP;
+}
+ /*}}}*/
+static APT_PURE char const *findDescriptionField(char const *DescP, size_t const Length) /*{{{*/
+{
+ auto const backup = DescP;
+ char const * const TagName = "\nDescription";
+ size_t const TagLen = strlen(TagName);
+ while ((DescP = static_cast<char const *>(memchr(DescP, '\n', Length - (DescP - backup)))) != nullptr)
+ {
+ if (strncmp(DescP, TagName, TagLen) == 0)
+ break;
+ else
+ ++DescP;
+ }
+ if (DescP != nullptr)
+ ++DescP;
+ return DescP;
+}
+ /*}}}*/
+static APT_PURE char const *skipColonSpaces(char const *Buffer, size_t const Length) /*{{{*/
+{
+ // skipping withspace before and after the field-value separating colon
+ char const *const Start = Buffer;
+ for (; isspace(*Buffer) != 0 && Length - (Buffer - Start) > 0; ++Buffer)
+ ;
+ if (*Buffer != ':')
+ return nullptr;
+ ++Buffer;
+ for (; isspace(*Buffer) != 0 && Length - (Buffer - Start) > 0; ++Buffer)
+ ;
+ if (Length < static_cast<size_t>(Buffer - Start))
+ return nullptr;
+ return Buffer;
+}
+ /*}}}*/
+
+bool DisplayRecordV1(pkgCacheFile &, pkgRecords &Recs, /*{{{*/
+ pkgCache::VerIterator const &V, pkgCache::VerFileIterator const &Vf,
+ char const *Buffer, size_t Length, std::ostream &out)
+{
+ if (unlikely(Length < 4))
+ return false;
+
+ auto const Desc = V.TranslatedDescription();
+ if (Desc.end())
+ {
+ /* This handles the unusual case that we have no description whatsoever.
+ The slightly more common case of only having a short-description embedded
+ in the record could be handled here, but apt supports also having multiple
+ descriptions embedded in the record, so we deal with that case later */
+ if (FileFd::Write(STDOUT_FILENO, Buffer, Length) == false)
+ return false;
+ if (strncmp((Buffer + Length - 4), "\r\n\r\n", 4) != 0 &&
+ strncmp((Buffer + Length - 2), "\n\n", 2) != 0)
+ out << std::endl;
+ return true;
+ }
+
+ // Get a pointer to start of Description field
+ char const *DescP = findDescriptionField(Buffer, Length);
+ if (DescP == nullptr)
+ DescP = Buffer + Length;
+
+ // Write all but Description
+ size_t const untilDesc = DescP - Buffer;
+ if (untilDesc != 0 && FileFd::Write(STDOUT_FILENO, Buffer, untilDesc) == false)
+ return false;
+
+ // Show the right description
+ char desctag[50];
+ auto const langcode = Desc.LanguageCode();
+ if (strcmp(langcode, "") == 0)
+ strcpy(desctag, "\nDescription");
+ else
+ snprintf(desctag, sizeof(desctag), "\nDescription-%s", langcode);
+
+ out << desctag + 1 << ": " << std::flush;
+ auto const Df = Desc.FileList();
+ if (Df.end() == false)
+ {
+ if (Desc.FileList()->File == Vf->File)
+ {
+ /* If we have the file already open look in the buffer for the
+ description we want to display. Note that this might not be the
+ only one we can encounter in this record */
+ char const *Start = DescP;
+ do
+ {
+ if (strncmp(Start, desctag + 1, strlen(desctag) - 1) != 0)
+ continue;
+ Start += strlen(desctag) - 1;
+ Start = skipColonSpaces(Start, Length - (Start - Buffer));
+ if (Start == nullptr)
+ continue;
+ char const *End = skipDescription(Start, Length - (Start - Buffer), false);
+ if (likely(End != nullptr))
+ FileFd::Write(STDOUT_FILENO, Start, End - (Start + 1));
+ break;
+ } while ((Start = findDescriptionField(Start, Length - (Start - Buffer))) != nullptr);
+ }
+ else
+ {
+ pkgRecords::Parser &P = Recs.Lookup(Df);
+ out << P.LongDesc();
+ }
+ }
+
+ out << std::endl << "Description-md5: " << Desc.md5() << std::endl;
+
+ // Find the first field after the description (if there is any)
+ DescP = skipDescription(DescP, Length - (DescP - Buffer), true);
+
+ // write the rest of the buffer, but skip mixed in Descriptions* fields
+ while (DescP != nullptr)
+ {
+ char const *const Start = DescP;
+ char const *End = findDescriptionField(DescP, Length - (DescP - Buffer));
+ if (End == nullptr)
+ {
+ DescP = nullptr;
+ End = Buffer + Length - 1;
+ size_t endings = 0;
+ while (*End == '\n')
+ {
+ --End;
+ if (*End == '\r')
+ --End;
+ ++endings;
+ }
+ if (endings >= 1)
+ {
+ ++End;
+ if (*End == '\r')
+ ++End;
+ }
+ ++End;
+ }
+ else
+ DescP = skipDescription(End + strlen("Description"), Length - (End - Buffer), true);
+
+ size_t const length = End - Start;
+ if (length != 0 && FileFd::Write(STDOUT_FILENO, Start, length) == false)
+ return false;
+ }
+ // write a final newline after the last field
+ out << std::endl;
+
+ return true;
+}
+ /*}}}*/
+static bool DisplayRecordV2(pkgCacheFile &CacheFile, pkgRecords &Recs, /*{{{*/
+ pkgCache::VerIterator const &V, pkgCache::VerFileIterator const &Vf,
+ char const *Buffer, size_t const Length, std::ostream &out)
+{
+ // Check and load the package list file
+ pkgCache::PkgFileIterator I = Vf.File();
+
+ // 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;
+ if (Tags.Scan(Buffer, Length, true) == false)
+ return _error->Error("Internal Error, Unable to parse a package record");
+
+ // make size nice
+ std::string installed_size;
+ auto const installed_size_field = Tags.FindULL(pkgTagSection::Key::Installed_Size);
+ if (installed_size_field > 0)
+ installed_size = SizeToStr(installed_size_field * 1024).append("B");
+ else
+ installed_size = _("unknown");
+ std::string package_size;
+ auto const package_size_field = Tags.FindULL(pkgTagSection::Key::Size);
+ if (package_size_field > 0)
+ package_size = SizeToStr(package_size_field).append("B");
+ 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";
+ }
+
+ std::vector<pkgTagSection::Tag> RW;
+ // delete, apt-cache show has this info and most users do not care
+ if (not _config->FindB("APT::Cache::ShowFull", false))
+ {
+ for (char const * const * type = HashString::SupportedHashes(); *type != nullptr; ++type)
+ RW.push_back(pkgTagSection::Tag::Remove(*type));
+ RW.push_back(pkgTagSection::Tag::Remove("Filename"));
+ RW.push_back(pkgTagSection::Tag::Remove("Multi-Arch"));
+ RW.push_back(pkgTagSection::Tag::Remove("Conffiles"));
+ }
+ RW.push_back(pkgTagSection::Tag::Remove("Architecture"));
+ // 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
+ // 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;
+ CacheFile.InhibitActionGroups(true);
+ auto VolatileCmdL = GetAllPackagesAsPseudo(CacheFile.GetSourceList(), CmdL, AddVolatileBinaryFile, "");
+
+ if (unlikely(CacheFile.GetPkgCache() == nullptr))
+ return false;
+ 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 verset;
+ size_t normalPackages = 0;
+ for (auto const &I: VolatileCmdL)
+ {
+ if (I.index == -1)
+ {
+ APT::VersionContainerInterface::FromString(&verset, CacheFile, I.name, select, helper);
+ ++normalPackages;
+ }
+ else
+ {
+ if (select != APT::CacheSetHelper::CANDIDATE && unlikely(CacheFile.GetDepCache() == nullptr))
+ return false;
+ pkgCache::PkgIterator const P = CacheFile->FindPkg(I.name);
+ if (unlikely(P.end()))
+ continue;
+
+ // Set any version providing the .deb as the candidate.
+ for (auto Prv = P.ProvidesList(); Prv.end() == false; ++Prv)
+ {
+ if (I.release.empty())
+ CacheFile->SetCandidateVersion(Prv.OwnerVer());
+ else
+ CacheFile->SetCandidateRelease(Prv.OwnerVer(), I.release);
+
+ // via cacheset to have our usual handling
+ APT::VersionContainerInterface::FromPackage(&verset, CacheFile, Prv.OwnerPkg(), APT::CacheSetHelper::CANDIDATE, helper);
+ }
+ }
+ }
+
+ int const ShowVersion = _config->FindI("APT::Cache::Show::Version", 1);
+ pkgRecords Recs(CacheFile);
+ for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
+ {
+ pkgCache::VerFileIterator Vf;
+ auto &Parser = LookupParser(Recs, Ver, Vf);
+ char const *Start, *Stop;
+ Parser.GetRec(Start, Stop);
+ size_t const Length = Stop - Start;
+
+ if (ShowVersion <= 1)
+ {
+ if (DisplayRecordV1(CacheFile, Recs, Ver, Vf, Start, Length, std::cout) == false)
+ return false;
+ }
+ else if (DisplayRecordV2(CacheFile, Recs, Ver, Vf, Start, Length + 1, c1out) == false)
+ return false;
+ }
+
+ if (select == APT::CacheSetHelper::CANDIDATE && normalPackages != 0)
+ {
+ APT::VersionList verset_all;
+ for (auto const &I: VolatileCmdL)
+ {
+ if (I.index == -1)
+ APT::VersionContainerInterface::FromString(&verset_all, CacheFile, I.name, APT::CacheSetHelper::ALL, helper);
+ else
+ {
+ pkgCache::PkgIterator const P = CacheFile->FindPkg(I.name);
+ if (unlikely(P.end()))
+ continue;
+
+ // Set any version providing the .deb as the candidate.
+ for (auto Prv = P.ProvidesList(); Prv.end() == false; ++Prv)
+ {
+ if (I.release.empty())
+ CacheFile->SetCandidateVersion(Prv.OwnerVer());
+ else
+ CacheFile->SetCandidateRelease(Prv.OwnerVer(), I.release);
+
+ // via cacheset to have our usual virtual handling
+ APT::VersionContainerInterface::FromPackage(&verset_all, CacheFile, Prv.OwnerPkg(), APT::CacheSetHelper::CANDIDATE, 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() ?
+ Hashes sha1(Hashes::SHA1SUM);
+ sha1.Add(input.c_str(), input.length());
+ return sha1.GetHashString(Hashes::SHA1SUM).HashValue();
+}
+ /*}}}*/
+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);
+
+ if (V.PhasedUpdatePercentage() != 100)
+ std::cout << " "
+ << "(" << _("phased") << " " << V.PhasedUpdatePercentage() << "%)";
+
+ std::cout << 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;
+}
+ /*}}}*/