diff options
Diffstat (limited to 'apt-pkg/pkgcache.cc')
| -rw-r--r-- | apt-pkg/pkgcache.cc | 80 |
1 files changed, 60 insertions, 20 deletions
diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc index 6db025bd0..997c70768 100644 --- a/apt-pkg/pkgcache.cc +++ b/apt-pkg/pkgcache.cc @@ -20,6 +20,8 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ +#include<config.h> + #include <apt-pkg/pkgcache.h> #include <apt-pkg/policy.h> #include <apt-pkg/version.h> @@ -29,13 +31,12 @@ #include <apt-pkg/aptconfiguration.h> #include <apt-pkg/macros.h> -#include <apti18n.h> - #include <string> #include <sys/stat.h> #include <unistd.h> - #include <ctype.h> + +#include <apti18n.h> /*}}}*/ using std::string; @@ -84,6 +85,8 @@ pkgCache::Header::Header() memset(PkgHashTable,0,sizeof(PkgHashTable)); memset(GrpHashTable,0,sizeof(GrpHashTable)); memset(Pools,0,sizeof(Pools)); + + CacheFileSize = 0; } /*}}}*/ // Cache::Header::CheckSizes - Check if the two headers have same *sz /*{{{*/ @@ -155,6 +158,9 @@ bool pkgCache::ReMap(bool const &Errorchecks) HeaderP->CheckSizes(DefHeader) == false) return _error->Error(_("The package cache file is an incompatible version")); + if (Map.Size() < HeaderP->CacheFileSize) + return _error->Error(_("The package cache file is corrupted, it is too small")); + // Locate our VS.. if (HeaderP->VerSysName == 0 || (VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0) @@ -484,7 +490,7 @@ pkgCache::PkgIterator::CurVersion() const if they provide no new information (e.g. there is no newer version than candidate) If no version and/or section can be found "none" is used. */ std::ostream& -operator<<(ostream& out, pkgCache::PkgIterator Pkg) +operator<<(std::ostream& out, pkgCache::PkgIterator Pkg) { if (Pkg.end() == true) return out << "invalid package"; @@ -613,13 +619,12 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const // Walk along the actual package providing versions for (VerIterator I = DPkg.VersionList(); I.end() == false; ++I) { - if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false) + if (IsIgnorable(I.ParentPkg()) == true) continue; - if (IsNegative() == true && - ParentPkg() == I.ParentPkg()) + if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false) continue; - + Size++; if (Res != 0) *End++ = I; @@ -628,13 +633,12 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const // Follow all provides for (PrvIterator I = DPkg.ProvidesList(); I.end() == false; ++I) { - if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false) + if (IsIgnorable(I) == true) continue; - - if (IsNegative() == true && - ParentPkg()->Group == I.OwnerPkg()->Group) + + if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false) continue; - + Size++; if (Res != 0) *End++ = I.OwnerVer(); @@ -676,10 +680,38 @@ void pkgCache::DepIterator::GlobOr(DepIterator &Start,DepIterator &End) } } /*}}}*/ +// DepIterator::IsIgnorable - should this packag/providr be ignored? /*{{{*/ +// --------------------------------------------------------------------- +/* Deps like self-conflicts should be ignored as well as implicit conflicts + on virtual packages. */ +bool pkgCache::DepIterator::IsIgnorable(PkgIterator const &Pkg) const +{ + if (ParentPkg() == TargetPkg()) + return IsNegative(); + + return false; +} +bool pkgCache::DepIterator::IsIgnorable(PrvIterator const &Prv) const +{ + if (IsNegative() == false) + return false; + + PkgIterator const Pkg = ParentPkg(); + /* Provides may never be applied against the same package (or group) + if it is a conflicts. See the comment above. */ + if (Prv.OwnerPkg()->Group == Pkg->Group) + return true; + // Implicit group-conflicts should not be applied on providers of other groups + if (Pkg->Group == TargetPkg()->Group && Prv.OwnerPkg()->Group != Pkg->Group) + return true; + + return false; +} + /*}}}*/ // ostream operator to handle string representation of a dependecy /*{{{*/ // --------------------------------------------------------------------- /* */ -std::ostream& operator<<(ostream& out, pkgCache::DepIterator D) +std::ostream& operator<<(std::ostream& out, pkgCache::DepIterator D) { if (D.end() == true) return out << "invalid dependency"; @@ -749,9 +781,6 @@ bool pkgCache::VerIterator::Automatic() const return false; } /*}}}*/ -// VerIterator::Pseudo - deprecated no-op method /*{{{*/ -bool pkgCache::VerIterator::Pseudo() const { return false; } - /*}}}*/ // VerIterator::NewestFile - Return the newest file version relation /*{{{*/ // --------------------------------------------------------------------- /* This looks at the version numbers associated with all of the sources @@ -891,11 +920,22 @@ pkgCache::DescIterator pkgCache::VerIterator::TranslatedDescription() const { pkgCache::DescIterator Desc = DescriptionList(); for (; Desc.end() == false; ++Desc) - if (*l == Desc.LanguageCode() || - (*l == "en" && strcmp(Desc.LanguageCode(),"") == 0)) + if (*l == Desc.LanguageCode()) break; if (Desc.end() == true) - continue; + { + if (*l == "en") + { + Desc = DescriptionList(); + for (; Desc.end() == false; ++Desc) + if (strcmp(Desc.LanguageCode(), "") == 0) + break; + if (Desc.end() == true) + continue; + } + else + continue; + } return Desc; } for (pkgCache::DescIterator Desc = DescriptionList(); |