##################################################################### */
/*}}}*/
// Include Files /*{{{*/
+#include<config.h>
+
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/policy.h>
#include <apt-pkg/version.h>
#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;
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 /*{{{*/
/* */
pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map)
{
- MultiArchEnabled = APT::Configuration::getArchitectures().size() > 1;
+ // call getArchitectures() with cached=false to ensure that the
+ // architectures cache is re-evaulated. this is needed in cases
+ // when the APT::Architecture field changes between two cache creations
+ MultiArchEnabled = APT::Configuration::getArchitectures(false).size() > 1;
if (DoMap == true)
ReMap();
}
// Cache::ReMap - Reopen the cache file /*{{{*/
// ---------------------------------------------------------------------
/* If the file is already closed then this will open it open it. */
-bool pkgCache::ReMap()
+bool pkgCache::ReMap(bool const &Errorchecks)
{
// Apply the typecasts.
HeaderP = (Header *)Map.Data();
StringItemP = (StringItem *)Map.Data();
StrP = (char *)Map.Data();
+ if (Errorchecks == false)
+ return true;
+
if (Map.Size() == 0 || HeaderP == 0)
return _error->Error(_("Empty package cache"));
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)
unsigned long pkgCache::sHash(const string &Str) const
{
unsigned long Hash = 0;
- for (string::const_iterator I = Str.begin(); I != Str.end(); I++)
+ for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)
Hash = 5*Hash + tolower_ascii(*I);
return Hash % _count(HeaderP->PkgHashTable);
}
unsigned long pkgCache::sHash(const char *Str) const
{
unsigned long Hash = 0;
- for (const char *I = Str; *I != 0; I++)
+ for (const char *I = Str; *I != 0; ++I)
Hash = 5*Hash + tolower_ascii(*I);
return Hash % _count(HeaderP->PkgHashTable);
}
// ---------------------------------------------------------------------
/* Returns 0 on error, pointer to the package otherwise */
pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) {
- if (MultiArchCache() == false)
- return SingleArchFindPkg(Name);
size_t const found = Name.find(':');
if (found == string::npos)
- return FindPkg(Name, "native");
+ {
+ if (MultiArchCache() == false)
+ return SingleArchFindPkg(Name);
+ else
+ return FindPkg(Name, "native");
+ }
string const Arch = Name.substr(found+1);
+ /* Beware: This is specialcased to handle pkg:any in dependencies as
+ these are linked to virtual pkg:any named packages with all archs.
+ If you want any arch from a given pkg, use FindPkg(pkg,arch) */
if (Arch == "any")
return FindPkg(Name, "any");
return FindPkg(Name.substr(0, found), Arch);
pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) {
if (MultiArchCache() == false) {
if (Arch == "native" || Arch == "all" || Arch == "any" ||
- Arch == _config->Find("APT::Architecture"))
+ Arch == NativeArch())
return SingleArchFindPkg(Name);
else
return PkgIterator(*this,0);
// GrpIterator::FindPkg - Locate a package by arch /*{{{*/
// ---------------------------------------------------------------------
/* Returns an End-Pointer on error, pointer to the package otherwise */
-pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) {
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
if (unlikely(IsGood() == false || S->FirstPackage == 0))
return PkgIterator(*Owner, 0);
- static string const myArch = _config->Find("APT::Architecture");
+ /* If we accept any package we simply return the "first"
+ package in this group (the last one added). */
+ if (Arch == "any")
+ return PkgIterator(*Owner, Owner->PkgP + S->FirstPackage);
+
+ char const* const myArch = Owner->NativeArch();
/* Most of the time the package for our native architecture is
the one we add at first to the cache, but this would be the
last one we check, so we do it now. */
- if (Arch == "native" || Arch == myArch) {
- Arch = myArch;
+ if (Arch == "native" || Arch == myArch || Arch == "all") {
pkgCache::Package *Pkg = Owner->PkgP + S->LastPackage;
- if (stringcasecmp(Arch, Owner->StrP + Pkg->Arch) == 0)
+ if (strcasecmp(myArch, Owner->StrP + Pkg->Arch) == 0)
return PkgIterator(*Owner, Pkg);
+ Arch = myArch;
}
- /* If we accept any package we simply return the "first"
- package in this group (the last one added). */
- if (Arch == "any")
- return PkgIterator(*Owner, Owner->PkgP + S->FirstPackage);
-
/* Iterate over the list to find the matching arch
unfortunately this list includes "package noise"
(= different packages with same calculated hash),
return PkgIterator(*Owner, 0);
}
/*}}}*/
+// GrpIterator::FindPreferredPkg - Locate the "best" package /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns an End-Pointer on error, pointer to the package otherwise */
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg(bool const &PreferNonVirtual) const {
+ pkgCache::PkgIterator Pkg = FindPkg("native");
+ if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0))
+ return Pkg;
+
+ std::vector<std::string> const archs = APT::Configuration::getArchitectures();
+ for (std::vector<std::string>::const_iterator a = archs.begin();
+ a != archs.end(); ++a) {
+ Pkg = FindPkg(*a);
+ if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0))
+ return Pkg;
+ }
+
+ if (PreferNonVirtual == true)
+ return FindPreferredPkg(false);
+ return PkgIterator(*Owner, 0);
+}
+ /*}}}*/
// GrpIterator::NextPkg - Locate the next package in the group /*{{{*/
// ---------------------------------------------------------------------
/* Returns an End-Pointer on error, pointer to the package otherwise.
We can't simply ++ to the next as the next package of the last will
be from a different group (with the same hash value) */
-pkgCache::PkgIterator pkgCache::GrpIterator::NextPkg(pkgCache::PkgIterator const &LastPkg) {
+pkgCache::PkgIterator pkgCache::GrpIterator::NextPkg(pkgCache::PkgIterator const &LastPkg) const {
if (unlikely(IsGood() == false || S->FirstPackage == 0 ||
LastPkg.end() == true))
return PkgIterator(*Owner, 0);
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";
{
string fullname = Name();
if (Pretty == false ||
- (strcmp(Arch(), "all") != 0 && _config->Find("APT::Architecture") != Arch()))
+ (strcmp(Arch(), "all") != 0 &&
+ strcmp(Owner->NativeArch(), Arch()) != 0))
return fullname.append(":").append(Arch());
return fullname;
}
// ---------------------------------------------------------------------
/* Currently critical deps are defined as depends, predepends and
conflicts (including dpkg's Breaks fields). */
-bool pkgCache::DepIterator::IsCritical()
+bool pkgCache::DepIterator::IsCritical() const
{
- if (S->Type == pkgCache::Dep::Conflicts ||
- S->Type == pkgCache::Dep::DpkgBreaks ||
- S->Type == pkgCache::Dep::Obsoletes ||
+ if (IsNegative() == true ||
S->Type == pkgCache::Dep::Depends ||
S->Type == pkgCache::Dep::PreDepends)
return true;
return false;
}
/*}}}*/
+// DepIterator::IsNegative - Returns true if the dep is a negative one /*{{{*/
+// ---------------------------------------------------------------------
+/* Some dependencies are positive like Depends and Recommends, others
+ are negative like Conflicts which can and should be handled differently */
+bool pkgCache::DepIterator::IsNegative() const
+{
+ return S->Type == Dep::DpkgBreaks ||
+ S->Type == Dep::Conflicts ||
+ S->Type == Dep::Obsoletes;
+}
+ /*}}}*/
// DepIterator::SmartTargetPkg - Resolve dep target pointers w/provides /*{{{*/
// ---------------------------------------------------------------------
/* This intellegently looks at dep target packages and tries to figure
In Conjunction with the DepCache the value of Result may not be
super-good since the policy may have made it uninstallable. Using
AllTargets is better in this case. */
-bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result)
+bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result) const
{
Result = TargetPkg();
virtual package libc-dev which is provided by libc5-dev and libc6-dev
we must ignore libc5-dev when considering the provides list. */
PrvIterator PStart = Result.ProvidesList();
- for (; PStart.end() != true && PStart.OwnerPkg() == ParentPkg(); PStart++);
+ for (; PStart.end() != true && PStart.OwnerPkg() == ParentPkg(); ++PStart);
// Nothing but indirect self provides
if (PStart.end() == true)
// Check for single packages in the provides list
PrvIterator P = PStart;
- for (; P.end() != true; P++)
+ for (; P.end() != true; ++P)
{
// Skip over self provides
if (P.OwnerPkg() == ParentPkg())
provides. It includes every possible package-version that could satisfy
the dependency. The last item in the list has a 0. The resulting pointer
must be delete [] 'd */
-pkgCache::Version **pkgCache::DepIterator::AllTargets()
+pkgCache::Version **pkgCache::DepIterator::AllTargets() const
{
Version **Res = 0;
unsigned long Size =0;
PkgIterator DPkg = TargetPkg();
// Walk along the actual package providing versions
- for (VerIterator I = DPkg.VersionList(); I.end() == false; I++)
+ for (VerIterator I = DPkg.VersionList(); I.end() == false; ++I)
{
if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false)
continue;
- if ((S->Type == pkgCache::Dep::Conflicts ||
- S->Type == pkgCache::Dep::DpkgBreaks ||
- S->Type == pkgCache::Dep::Obsoletes) &&
+ if (IsNegative() == true &&
ParentPkg() == I.ParentPkg())
continue;
}
// Follow all provides
- for (PrvIterator I = DPkg.ProvidesList(); I.end() == false; I++)
+ for (PrvIterator I = DPkg.ProvidesList(); I.end() == false; ++I)
{
if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
continue;
- if ((S->Type == pkgCache::Dep::Conflicts ||
- S->Type == pkgCache::Dep::DpkgBreaks ||
- S->Type == pkgCache::Dep::Obsoletes) &&
- ParentPkg() == I.OwnerPkg())
+ if (IsNegative() == true &&
+ ParentPkg()->Group == I.OwnerPkg()->Group)
continue;
Size++;
}
}
/*}}}*/
+// ostream operator to handle string representation of a dependecy /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::ostream& operator<<(std::ostream& out, pkgCache::DepIterator D)
+{
+ if (D.end() == true)
+ return out << "invalid dependency";
+
+ pkgCache::PkgIterator P = D.ParentPkg();
+ pkgCache::PkgIterator T = D.TargetPkg();
+
+ out << (P.end() ? "invalid pkg" : P.FullName(false)) << " " << D.DepType()
+ << " on ";
+ if (T.end() == true)
+ out << "invalid pkg";
+ else
+ out << T;
+
+ if (D->Version != 0)
+ out << " (" << D.CompType() << " " << D.TargetVer() << ")";
+
+ return out;
+}
+ /*}}}*/
// VerIterator::CompareVer - Fast version compare for same pkgs /*{{{*/
// ---------------------------------------------------------------------
/* This just looks over the version list to see if B is listed before A. In
/* Start at A and look for B. If B is found then A > B otherwise
B was before A so A < B */
VerIterator I = *this;
- for (;I.end() == false; I++)
+ for (;I.end() == false; ++I)
if (I == B)
return 1;
return -1;
bool pkgCache::VerIterator::Downloadable() const
{
VerFileIterator Files = FileList();
- for (; Files.end() == false; Files++)
+ for (; Files.end() == false; ++Files)
if ((Files.File()->Flags & pkgCache::Flag::NotSource) != pkgCache::Flag::NotSource)
return true;
return false;
bool pkgCache::VerIterator::Automatic() const
{
VerFileIterator Files = FileList();
- for (; Files.end() == false; Files++)
+ for (; Files.end() == false; ++Files)
+ // Do not check ButAutomaticUpgrades here as it is kind of automatic…
if ((Files.File()->Flags & pkgCache::Flag::NotAutomatic) != pkgCache::Flag::NotAutomatic)
return true;
return false;
}
/*}}}*/
-// VerIterator::Pseudo - Check if this version is a pseudo one /*{{{*/
-// ---------------------------------------------------------------------
-/* Sometimes you have the need to express dependencies with versions
- which doesn't really exist or exist multiply times for "different"
- packages. We need these versions for dependency resolution but they
- are a problem everytime we need to download/install something. */
-bool pkgCache::VerIterator::Pseudo() const
-{
- if (S->MultiArch == pkgCache::Version::All &&
- strcmp(Arch(true),"all") != 0)
- {
- GrpIterator const Grp = ParentPkg().Group();
- return (Grp->LastPackage != Grp->FirstPackage);
- }
- return false;
-}
- /*}}}*/
// VerIterator::NewestFile - Return the newest file version relation /*{{{*/
// ---------------------------------------------------------------------
/* This looks at the version numbers associated with all of the sources
{
VerFileIterator Files = FileList();
VerFileIterator Highest = Files;
- for (; Files.end() == false; Files++)
+ for (; Files.end() == false; ++Files)
{
if (Owner->VS->CmpReleaseVer(Files.File().Version(),Highest.File().Version()) > 0)
Highest = Files;
// ---------------------------------------------------------------------
/* This describes the version from a release-centric manner. The output is a
list of Label:Version/Archive */
-string pkgCache::VerIterator::RelStr()
+string pkgCache::VerIterator::RelStr() const
{
bool First = true;
string Res;
- for (pkgCache::VerFileIterator I = this->FileList(); I.end() == false; I++)
+ for (pkgCache::VerFileIterator I = this->FileList(); I.end() == false; ++I)
{
// Do not print 'not source' entries'
pkgCache::PkgFileIterator File = I.File();
// See if we have already printed this out..
bool Seen = false;
- for (pkgCache::VerFileIterator J = this->FileList(); I != J; J++)
+ for (pkgCache::VerFileIterator J = this->FileList(); I != J; ++J)
{
pkgCache::PkgFileIterator File2 = J.File();
if (File2->Label == 0 || File->Label == 0)
{
std::vector<string> const lang = APT::Configuration::getLanguages();
for (std::vector<string>::const_iterator l = lang.begin();
- l != lang.end(); l++)
+ l != lang.end(); ++l)
{
- pkgCache::DescIterator DescDefault = DescriptionList();
- pkgCache::DescIterator Desc = DescDefault;
-
- for (; Desc.end() == false; Desc++)
- if (*l == Desc.LanguageCode())
+ pkgCache::DescIterator Desc = DescriptionList();
+ for (; Desc.end() == false; ++Desc)
+ if (*l == Desc.LanguageCode() ||
+ (*l == "en" && strcmp(Desc.LanguageCode(),"") == 0))
break;
- if (Desc.end() == true)
- Desc = DescDefault;
+ if (Desc.end() == true)
+ continue;
return Desc;
}
-
+ for (pkgCache::DescIterator Desc = DescriptionList();
+ Desc.end() == false; ++Desc)
+ if (strcmp(Desc.LanguageCode(), "") == 0)
+ return Desc;
return DescriptionList();
};
projects / apt.git / blobdiff