diff options
Diffstat (limited to 'apt-pkg/deb/deblistparser.cc')
| -rw-r--r-- | apt-pkg/deb/deblistparser.cc | 260 |
1 files changed, 204 insertions, 56 deletions
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc index 66108d822..5fb737970 100644 --- a/apt-pkg/deb/deblistparser.cc +++ b/apt-pkg/deb/deblistparser.cc @@ -19,6 +19,7 @@ #include <apt-pkg/md5.h> #include <apt-pkg/macros.h> +#include <fnmatch.h> #include <ctype.h> /*}}}*/ @@ -31,10 +32,15 @@ static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Impor // ListParser::debListParser - Constructor /*{{{*/ // --------------------------------------------------------------------- -/* */ -debListParser::debListParser(FileFd *File) : Tags(File) -{ - Arch = _config->Find("APT::architecture"); +/* Provide an architecture and only this one and "all" will be accepted + in Step(), if no Architecture is given we will accept every arch + we would accept in general with checkArchitecture() */ +debListParser::debListParser(FileFd *File, string const &Arch) : Tags(File), + Arch(Arch) { + if (Arch == "native") + this->Arch = _config->Find("APT::Architecture"); + Architectures = APT::Configuration::getArchitectures(); + MultiArchEnabled = Architectures.size() > 1; } /*}}}*/ // ListParser::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/ @@ -52,14 +58,41 @@ unsigned long debListParser::UniqFindTagWrite(const char *Tag) // ListParser::Package - Return the package name /*{{{*/ // --------------------------------------------------------------------- /* This is to return the name of the package this section describes */ -string debListParser::Package() -{ - string Result = Section.FindS("Package"); - if (Result.empty() == true) +string debListParser::Package() { + string const Result = Section.FindS("Package"); + if(unlikely(Result.empty() == true)) _error->Error("Encountered a section with no Package: header"); return Result; } /*}}}*/ +// ListParser::Architecture - Return the package arch /*{{{*/ +// --------------------------------------------------------------------- +/* This will return the Architecture of the package this section describes + Note that architecture "all" packages will get the architecture of the + Packages file parsed here. */ +string debListParser::Architecture() { + string const Result = Section.FindS("Architecture"); + if (Result.empty() == true || Result == "all") + { + if (Arch.empty() == true) + /* FIXME: this is a problem for installed arch all + packages as we don't know from which arch this + package was installed - and therefore which + dependency this package resolves. */ + return _config->Find("APT::Architecture"); + else + return Arch; + } + return Result; +} + /*}}}*/ +// ListParser::ArchitectureAll /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool debListParser::ArchitectureAll() { + return Section.FindS("Architecture") == "all"; +} + /*}}}*/ // ListParser::Version - Return the version string /*{{{*/ // --------------------------------------------------------------------- /* This is to return the string describing the version in debian form, @@ -73,17 +106,39 @@ string debListParser::Version() // ListParser::NewVersion - Fill in the version structure /*{{{*/ // --------------------------------------------------------------------- /* */ -bool debListParser::NewVersion(pkgCache::VerIterator Ver) +bool debListParser::NewVersion(pkgCache::VerIterator &Ver) { // Parse the section Ver->Section = UniqFindTagWrite("Section"); - Ver->Arch = UniqFindTagWrite("Architecture"); - + + // Parse multi-arch + if (Section.FindS("Architecture") == "all") + /* Arch all packages can't have a Multi-Arch field, + but we need a special treatment for them nonetheless */ + Ver->MultiArch = pkgCache::Version::All; + else + { + string const MultiArch = Section.FindS("Multi-Arch"); + if (MultiArch.empty() == true) + Ver->MultiArch = pkgCache::Version::None; + else if (MultiArch == "same") + Ver->MultiArch = pkgCache::Version::Same; + else if (MultiArch == "foreign") + Ver->MultiArch = pkgCache::Version::Foreign; + else if (MultiArch == "allowed") + Ver->MultiArch = pkgCache::Version::Allowed; + else + { + _error->Warning("Unknown Multi-Arch type »%s« for package »%s«", + MultiArch.c_str(), Section.FindS("Package").c_str()); + Ver->MultiArch = pkgCache::Version::None; + } + } + // Archive Size - Ver->Size = (unsigned)Section.FindI("Size"); - + Ver->Size = Section.FindULL("Size"); // Unpacked Size (in K) - Ver->InstalledSize = (unsigned)Section.FindI("Installed-Size"); + Ver->InstalledSize = Section.FindULL("Installed-Size"); Ver->InstalledSize *= 1024; // Priority @@ -95,6 +150,24 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver) Ver->Priority = pkgCache::State::Extra; } + if (Ver->MultiArch == pkgCache::Version::All) + { + /* We maintain a "pseudo" arch=all package for architecture all versions + on which these versions can depend on. This pseudo package is many used + for downloading/installing: The other pseudo-packages will degenerate + to a NOP in the download/install step - this package will ensure that + it is downloaded only one time and installed only one time -- even if + the architecture bound versions coming in and out on regular basis. */ + if (strcmp(Ver.Arch(true),"all") == 0) + return true; + else if (MultiArchEnabled == true) + { + // our pseudo packages have no size to not confuse the fetcher + Ver->Size = 0; + Ver->InstalledSize = 0; + } + } + if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false) return false; if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false) @@ -178,13 +251,21 @@ MD5SumValue debListParser::Description_md5() // --------------------------------------------------------------------- /* This is called to update the package with any new information that might be found in the section */ -bool debListParser::UsePackage(pkgCache::PkgIterator Pkg, - pkgCache::VerIterator Ver) +bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg, + pkgCache::VerIterator &Ver) { if (Pkg->Section == 0) Pkg->Section = UniqFindTagWrite("Section"); - if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false) - return false; + + // Packages which are not from the "native" arch doesn't get the essential flag + // in the default "native" mode - it is also possible to mark "all" or "none". + // The "installed" mode is handled by ParseStatus(), See #544481 and friends. + string const static myArch = _config->Find("APT::Architecture"); + string const static essential = _config->Find("pkgCacheGen::Essential", "native"); + if ((essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()) || + essential == "all") + if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false) + return false; if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false) return false; @@ -251,14 +332,20 @@ unsigned short debListParser::VersionHash() Some of the above are obsolete (I think?) flag = hold-* and status = post-inst-failed, removal-failed at least. */ -bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, - pkgCache::VerIterator Ver) +bool debListParser::ParseStatus(pkgCache::PkgIterator &Pkg, + pkgCache::VerIterator &Ver) { const char *Start; const char *Stop; if (Section.Find("Status",Start,Stop) == false) return true; - + + // UsePackage() is responsible for setting the flag in the default case + bool const static essential = _config->Find("pkgCacheGen::Essential", "") == "installed"; + if (essential == true && + Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false) + return false; + // Isolate the first word const char *I = Start; for(; I < Stop && *I != ' '; I++); @@ -387,6 +474,20 @@ const char *debListParser::ConvertRelation(const char *I,unsigned int &Op) return I; } +/* + * CompleteArch: + * + * The complete architecture, consisting of <kernel>-<cpu>. + */ +static string CompleteArch(std::string& arch) { + if (arch == "armel") return "linux-arm"; + if (arch == "lpia") return "linux-i386"; + if (arch == "powerpcspe") return "linux-powerpc"; + if (arch == "uclibc-linux-armel") return "linux-arm"; + if (arch == "uclinux-armel") return "uclinux-arm"; + + return (arch.find("-") != string::npos) ? arch : "linux-" + arch; +} /*}}}*/ // ListParser::ParseDepends - Parse a dependency element /*{{{*/ // --------------------------------------------------------------------- @@ -460,6 +561,7 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop, if (ParseArchFlags == true) { string arch = _config->Find("APT::Architecture"); + string completeArch = CompleteArch(arch); // Parse an architecture if (I != Stop && *I == '[') @@ -487,8 +589,13 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop, I++; } - if (stringcmp(arch,I,End) == 0) + if (stringcmp(arch,I,End) == 0) { Found = true; + } else { + std::string wildcard = SubstVar(string(I, End), "any", "*"); + if (fnmatch(wildcard.c_str(), completeArch.c_str(), 0) == 0) + Found = true; + } if (*End++ == ']') { I = End; @@ -527,15 +634,16 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop, // --------------------------------------------------------------------- /* This is the higher level depends parser. It takes a tag and generates a complete depends tree for the given version. */ -bool debListParser::ParseDepends(pkgCache::VerIterator Ver, +bool debListParser::ParseDepends(pkgCache::VerIterator &Ver, const char *Tag,unsigned int Type) { const char *Start; const char *Stop; if (Section.Find(Tag,Start,Stop) == false) return true; - + string Package; + string const pkgArch = Ver.Arch(true); string Version; unsigned int Op; @@ -544,8 +652,18 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver, Start = ParseDepends(Start,Stop,Package,Version,Op); if (Start == 0) return _error->Error("Problem parsing dependency %s",Tag); - - if (NewDepends(Ver,Package,Version,Op,Type) == false) + + if (MultiArchEnabled == true && + (Type == pkgCache::Dep::Conflicts || + Type == pkgCache::Dep::DpkgBreaks || + Type == pkgCache::Dep::Replaces)) + { + for (std::vector<std::string>::const_iterator a = Architectures.begin(); + a != Architectures.end(); ++a) + if (NewDepends(Ver,Package,*a,Version,Op,Type) == false) + return false; + } + else if (NewDepends(Ver,Package,pkgArch,Version,Op,Type) == false) return false; if (Start == Stop) break; @@ -556,33 +674,55 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver, // ListParser::ParseProvides - Parse the provides list /*{{{*/ // --------------------------------------------------------------------- /* */ -bool debListParser::ParseProvides(pkgCache::VerIterator Ver) +bool debListParser::ParseProvides(pkgCache::VerIterator &Ver) { const char *Start; const char *Stop; - if (Section.Find("Provides",Start,Stop) == false) - return true; - - string Package; - string Version; - unsigned int Op; - - while (1) + if (Section.Find("Provides",Start,Stop) == true) { - Start = ParseDepends(Start,Stop,Package,Version,Op); - if (Start == 0) - return _error->Error("Problem parsing Provides line"); - if (Op != pkgCache::Dep::NoOp) { - _error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str()); - } else { - if (NewProvides(Ver,Package,Version) == false) - return false; + string Package; + string Version; + string const Arch = Ver.Arch(true); + unsigned int Op; + + while (1) + { + Start = ParseDepends(Start,Stop,Package,Version,Op); + if (Start == 0) + return _error->Error("Problem parsing Provides line"); + if (Op != pkgCache::Dep::NoOp) { + _error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str()); + } else { + if (NewProvides(Ver, Package, Arch, Version) == false) + return false; + } + + if (Start == Stop) + break; } + } - if (Start == Stop) - break; + if (Ver->MultiArch == pkgCache::Version::Allowed) + { + string const Package = string(Ver.ParentPkg().Name()).append(":").append("any"); + NewProvides(Ver, Package, "any", Ver.VerStr()); } - + + if (Ver->MultiArch != pkgCache::Version::Foreign) + return true; + + if (MultiArchEnabled == false) + return true; + + string const Package = Ver.ParentPkg().Name(); + string const Version = Ver.VerStr(); + for (std::vector<string>::const_iterator a = Architectures.begin(); + a != Architectures.end(); ++a) + { + if (NewProvides(Ver, Package, *a, Version) == false) + return false; + } + return true; } /*}}}*/ @@ -613,16 +753,23 @@ bool debListParser::Step() /* See if this is the correct Architecture, if it isn't then we drop the whole section. A missing arch tag only happens (in theory) inside the Status file, so that is a positive return */ - const char *Start; - const char *Stop; - if (Section.Find("Architecture",Start,Stop) == false) + string const Architecture = Section.FindS("Architecture"); + if (Architecture.empty() == true) return true; - if (stringcmp(Arch,Start,Stop) == 0) - return true; + if (Arch.empty() == true || Arch == "any" || MultiArchEnabled == false) + { + if (APT::Configuration::checkArchitecture(Architecture) == true) + return true; + } + else + { + if (Architecture == Arch) + return true; - if (stringcmp(Start,Stop,"all") == 0) - return true; + if (Architecture == "all") + return true; + } iOffset = Tags.Offset(); } @@ -632,7 +779,7 @@ bool debListParser::Step() // ListParser::LoadReleaseInfo - Load the release information /*{{{*/ // --------------------------------------------------------------------- /* */ -bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, +bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI, FileFd &File, string component) { pkgTagFile Tags(&File, File.Size() + 256); // XXX @@ -640,8 +787,9 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, if (Tags.Step(Section) == false) return false; - //mvo: I don't think we need to fill that in (it's unused since apt-0.6) - //FileI->Architecture = WriteUniqString(Arch); + // FIXME: Do we need it now for multi-arch? + // mvo: I don't think we need to fill that in (it's unused since apt-0.6) +// FileI->Architecture = WriteUniqString(Arch); // apt-secure does no longer download individual (per-section) Release // file. to provide Component pinning we use the section name now |