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- // -*- mode: cpp; mode: fold -*-
- // Description /*{{{*/
- // $Id: deblistparser.cc,v 1.29.2.5 2004/01/06 01:43:44 mdz Exp $
- /* ######################################################################
-
- Package Cache Generator - Generator for the cache structure.
-
- This builds the cache structure from the abstract package list parser.
-
- ##################################################################### */
- /*}}}*/
- // Include Files /*{{{*/
- #include <config.h>
- #include <apt-pkg/deblistparser.h>
- #include <apt-pkg/error.h>
- #include <apt-pkg/configuration.h>
- #include <apt-pkg/cachefilter.h>
- #include <apt-pkg/aptconfiguration.h>
- #include <apt-pkg/strutl.h>
- #include <apt-pkg/fileutl.h>
- #include <apt-pkg/crc-16.h>
- #include <apt-pkg/md5.h>
- #include <apt-pkg/macros.h>
- #include <ctype.h>
- /*}}}*/
- using std::string;
- static debListParser::WordList PrioList[] = {
- {"required",pkgCache::State::Required},
- {"important",pkgCache::State::Important},
- {"standard",pkgCache::State::Standard},
- {"optional",pkgCache::State::Optional},
- {"extra",pkgCache::State::Extra},
- {}};
- // ListParser::debListParser - Constructor /*{{{*/
- // ---------------------------------------------------------------------
- /* 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 /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- unsigned long debListParser::UniqFindTagWrite(const char *Tag)
- {
- const char *Start;
- const char *Stop;
- if (Section.Find(Tag,Start,Stop) == false)
- return 0;
- return WriteUniqString(Start,Stop - Start);
- }
- /*}}}*/
- // ListParser::Package - Return the package name /*{{{*/
- // ---------------------------------------------------------------------
- /* This is to return the name of the package this section describes */
- 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 */
- string debListParser::Architecture() {
- return Section.FindS("Architecture");
- }
- /*}}}*/
- // 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,
- epoch:upstream-release. If this returns the blank string then the
- entry is assumed to only describe package properties */
- string debListParser::Version()
- {
- return Section.FindS("Version");
- }
- /*}}}*/
- // ListParser::NewVersion - Fill in the version structure /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
- {
- // Parse the section
- Ver->Section = UniqFindTagWrite("Section");
- // Parse multi-arch
- string const MultiArch = Section.FindS("Multi-Arch");
- if (MultiArch.empty() == true)
- Ver->MultiArch = pkgCache::Version::None;
- else if (MultiArch == "same") {
- // Parse multi-arch
- if (ArchitectureAll() == true)
- {
- /* Arch all packages can't be Multi-Arch: same */
- _error->Warning("Architecture: all package '%s' can't be Multi-Arch: same",
- Section.FindS("Package").c_str());
- Ver->MultiArch = pkgCache::Version::None;
- }
- else
- 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;
- }
- if (ArchitectureAll() == true)
- Ver->MultiArch |= pkgCache::Version::All;
- // Archive Size
- Ver->Size = Section.FindULL("Size");
- // Unpacked Size (in K)
- Ver->InstalledSize = Section.FindULL("Installed-Size");
- Ver->InstalledSize *= 1024;
- // Priority
- const char *Start;
- const char *Stop;
- if (Section.Find("Priority",Start,Stop) == true)
- {
- if (GrabWord(string(Start,Stop-Start),PrioList,Ver->Priority) == false)
- Ver->Priority = pkgCache::State::Extra;
- }
- if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
- return false;
- if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)
- return false;
- if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false)
- return false;
- if (ParseDepends(Ver,"Recommends",pkgCache::Dep::Recommends) == false)
- return false;
- if (ParseDepends(Ver,"Conflicts",pkgCache::Dep::Conflicts) == false)
- return false;
- if (ParseDepends(Ver,"Breaks",pkgCache::Dep::DpkgBreaks) == false)
- return false;
- if (ParseDepends(Ver,"Replaces",pkgCache::Dep::Replaces) == false)
- return false;
- if (ParseDepends(Ver,"Enhances",pkgCache::Dep::Enhances) == false)
- return false;
- // Obsolete.
- if (ParseDepends(Ver,"Optional",pkgCache::Dep::Suggests) == false)
- return false;
-
- if (ParseProvides(Ver) == false)
- return false;
-
- return true;
- }
- /*}}}*/
- // ListParser::Description - Return the description string /*{{{*/
- // ---------------------------------------------------------------------
- /* This is to return the string describing the package in debian
- form. If this returns the blank string then the entry is assumed to
- only describe package properties */
- string debListParser::Description()
- {
- string const lang = DescriptionLanguage();
- if (lang.empty())
- return Section.FindS("Description");
- else
- return Section.FindS(string("Description-").append(lang).c_str());
- }
- /*}}}*/
- // ListParser::DescriptionLanguage - Return the description lang string /*{{{*/
- // ---------------------------------------------------------------------
- /* This is to return the string describing the language of
- description. If this returns the blank string then the entry is
- assumed to describe original description. */
- string debListParser::DescriptionLanguage()
- {
- if (Section.FindS("Description").empty() == false)
- return "";
- std::vector<string> const lang = APT::Configuration::getLanguages(true);
- for (std::vector<string>::const_iterator l = lang.begin();
- l != lang.end(); ++l)
- if (Section.FindS(string("Description-").append(*l).c_str()).empty() == false)
- return *l;
- return "";
- }
- /*}}}*/
- // ListParser::Description - Return the description_md5 MD5SumValue /*{{{*/
- // ---------------------------------------------------------------------
- /* This is to return the md5 string to allow the check if it is the right
- description. If no Description-md5 is found in the section it will be
- calculated.
- */
- MD5SumValue debListParser::Description_md5()
- {
- string const value = Section.FindS("Description-md5");
- if (value.empty() == true)
- {
- std::string const desc = Description() + "\n";
- if (desc == "\n")
- return MD5SumValue();
- MD5Summation md5;
- md5.Add(desc.c_str());
- return md5.Result();
- }
- else if (likely(value.size() == 32))
- {
- if (likely(value.find_first_not_of("0123456789abcdefABCDEF") == string::npos))
- return MD5SumValue(value);
- _error->Error("Malformed Description-md5 line; includes invalid character '%s'", value.c_str());
- return MD5SumValue();
- }
- _error->Error("Malformed Description-md5 line; doesn't have the required length (32 != %d) '%s'", (int)value.size(), value.c_str());
- return MD5SumValue();
- }
- /*}}}*/
- // ListParser::UsePackage - Update a package structure /*{{{*/
- // ---------------------------------------------------------------------
- /* 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)
- {
- if (Pkg->Section == 0)
- Pkg->Section = UniqFindTagWrite("Section");
- string const static myArch = _config->Find("APT::Architecture");
- // Possible values are: "all", "native", "installed" and "none"
- // The "installed" mode is handled by ParseStatus(), See #544481 and friends.
- string const static essential = _config->Find("pkgCacheGen::Essential", "all");
- if (essential == "all" ||
- (essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()))
- if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
- return false;
- if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
- return false;
- if (strcmp(Pkg.Name(),"apt") == 0)
- {
- if ((essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()) ||
- essential == "all")
- Pkg->Flags |= pkgCache::Flag::Essential | pkgCache::Flag::Important;
- else
- Pkg->Flags |= pkgCache::Flag::Important;
- }
- if (ParseStatus(Pkg,Ver) == false)
- return false;
- return true;
- }
- /*}}}*/
- // ListParser::VersionHash - Compute a unique hash for this version /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- unsigned short debListParser::VersionHash()
- {
- const char *Sections[] ={"Installed-Size",
- "Depends",
- "Pre-Depends",
- // "Suggests",
- // "Recommends",
- "Conflicts",
- "Breaks",
- "Replaces",0};
- unsigned long Result = INIT_FCS;
- char S[1024];
- for (const char * const *I = Sections; *I != 0; ++I)
- {
- const char *Start;
- const char *End;
- if (Section.Find(*I,Start,End) == false || End - Start >= (signed)sizeof(S))
- continue;
-
- /* Strip out any spaces from the text, this undoes dpkgs reformatting
- of certain fields. dpkg also has the rather interesting notion of
- reformatting depends operators < -> <= */
- char *J = S;
- for (; Start != End; ++Start)
- {
- if (isspace(*Start) != 0)
- continue;
- *J++ = tolower_ascii(*Start);
- if ((*Start == '<' || *Start == '>') && Start[1] != *Start && Start[1] != '=')
- *J++ = '=';
- }
- Result = AddCRC16(Result,S,J - S);
- }
-
- return Result;
- }
- /*}}}*/
- // ListParser::ParseStatus - Parse the status field /*{{{*/
- // ---------------------------------------------------------------------
- /* Status lines are of the form,
- Status: want flag status
- want = unknown, install, hold, deinstall, purge
- flag = ok, reinstreq, hold, hold-reinstreq
- status = not-installed, unpacked, half-configured,
- half-installed, config-files, post-inst-failed,
- removal-failed, installed
-
- 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)
- {
- 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++);
- if (I >= Stop || *I != ' ')
- return _error->Error("Malformed Status line");
- // Process the want field
- WordList WantList[] = {{"unknown",pkgCache::State::Unknown},
- {"install",pkgCache::State::Install},
- {"hold",pkgCache::State::Hold},
- {"deinstall",pkgCache::State::DeInstall},
- {"purge",pkgCache::State::Purge},
- {}};
- if (GrabWord(string(Start,I-Start),WantList,Pkg->SelectedState) == false)
- return _error->Error("Malformed 1st word in the Status line");
- // Isloate the next word
- I++;
- Start = I;
- for(; I < Stop && *I != ' '; I++);
- if (I >= Stop || *I != ' ')
- return _error->Error("Malformed status line, no 2nd word");
- // Process the flag field
- WordList FlagList[] = {{"ok",pkgCache::State::Ok},
- {"reinstreq",pkgCache::State::ReInstReq},
- {"hold",pkgCache::State::HoldInst},
- {"hold-reinstreq",pkgCache::State::HoldReInstReq},
- {}};
- if (GrabWord(string(Start,I-Start),FlagList,Pkg->InstState) == false)
- return _error->Error("Malformed 2nd word in the Status line");
- // Isloate the last word
- I++;
- Start = I;
- for(; I < Stop && *I != ' '; I++);
- if (I != Stop)
- return _error->Error("Malformed Status line, no 3rd word");
- // Process the flag field
- WordList StatusList[] = {{"not-installed",pkgCache::State::NotInstalled},
- {"unpacked",pkgCache::State::UnPacked},
- {"half-configured",pkgCache::State::HalfConfigured},
- {"installed",pkgCache::State::Installed},
- {"half-installed",pkgCache::State::HalfInstalled},
- {"config-files",pkgCache::State::ConfigFiles},
- {"triggers-awaited",pkgCache::State::TriggersAwaited},
- {"triggers-pending",pkgCache::State::TriggersPending},
- {"post-inst-failed",pkgCache::State::HalfConfigured},
- {"removal-failed",pkgCache::State::HalfInstalled},
- {}};
- if (GrabWord(string(Start,I-Start),StatusList,Pkg->CurrentState) == false)
- return _error->Error("Malformed 3rd word in the Status line");
- /* A Status line marks the package as indicating the current
- version as well. Only if it is actually installed.. Otherwise
- the interesting dpkg handling of the status file creates bogus
- entries. */
- if (!(Pkg->CurrentState == pkgCache::State::NotInstalled ||
- Pkg->CurrentState == pkgCache::State::ConfigFiles))
- {
- if (Ver.end() == true)
- _error->Warning("Encountered status field in a non-version description");
- else
- Pkg->CurrentVer = Ver.Index();
- }
-
- return true;
- }
- const char *debListParser::ConvertRelation(const char *I,unsigned int &Op)
- {
- // Determine the operator
- switch (*I)
- {
- case '<':
- I++;
- if (*I == '=')
- {
- I++;
- Op = pkgCache::Dep::LessEq;
- break;
- }
-
- if (*I == '<')
- {
- I++;
- Op = pkgCache::Dep::Less;
- break;
- }
-
- // < is the same as <= and << is really Cs < for some reason
- Op = pkgCache::Dep::LessEq;
- break;
-
- case '>':
- I++;
- if (*I == '=')
- {
- I++;
- Op = pkgCache::Dep::GreaterEq;
- break;
- }
-
- if (*I == '>')
- {
- I++;
- Op = pkgCache::Dep::Greater;
- break;
- }
-
- // > is the same as >= and >> is really Cs > for some reason
- Op = pkgCache::Dep::GreaterEq;
- break;
-
- case '=':
- Op = pkgCache::Dep::Equals;
- I++;
- break;
-
- // HACK around bad package definitions
- default:
- Op = pkgCache::Dep::Equals;
- break;
- }
- return I;
- }
- /*}}}*/
- // ListParser::ParseDepends - Parse a dependency element /*{{{*/
- // ---------------------------------------------------------------------
- /* This parses the dependency elements out of a standard string in place,
- bit by bit. */
- const char *debListParser::ParseDepends(const char *Start,const char *Stop,
- string &Package,string &Ver,
- unsigned int &Op, bool const &ParseArchFlags,
- bool const &StripMultiArch)
- {
- // Strip off leading space
- for (;Start != Stop && isspace(*Start) != 0; Start++);
-
- // Parse off the package name
- const char *I = Start;
- for (;I != Stop && isspace(*I) == 0 && *I != '(' && *I != ')' &&
- *I != ',' && *I != '|' && *I != '[' && *I != ']'; I++);
-
- // Malformed, no '('
- if (I != Stop && *I == ')')
- return 0;
- if (I == Start)
- return 0;
-
- // Stash the package name
- Package.assign(Start,I - Start);
- // We don't want to confuse library users which can't handle MultiArch
- string const arch = _config->Find("APT::Architecture");
- if (StripMultiArch == true) {
- size_t const found = Package.rfind(':');
- if (found != string::npos &&
- (strcmp(Package.c_str() + found, ":any") == 0 ||
- strcmp(Package.c_str() + found, ":native") == 0 ||
- strcmp(Package.c_str() + found + 1, arch.c_str()) == 0))
- Package = Package.substr(0,found);
- }
- // Skip white space to the '('
- for (;I != Stop && isspace(*I) != 0 ; I++);
-
- // Parse a version
- if (I != Stop && *I == '(')
- {
- // Skip the '('
- for (I++; I != Stop && isspace(*I) != 0 ; I++);
- if (I + 3 >= Stop)
- return 0;
- I = ConvertRelation(I,Op);
-
- // Skip whitespace
- for (;I != Stop && isspace(*I) != 0; I++);
- Start = I;
- I = (const char*) memchr(I, ')', Stop - I);
- if (I == NULL || Start == I)
- return 0;
-
- // Skip trailing whitespace
- const char *End = I;
- for (; End > Start && isspace(End[-1]); End--);
-
- Ver.assign(Start,End-Start);
- I++;
- }
- else
- {
- Ver.clear();
- Op = pkgCache::Dep::NoOp;
- }
-
- // Skip whitespace
- for (;I != Stop && isspace(*I) != 0; I++);
- if (ParseArchFlags == true)
- {
- APT::CacheFilter::PackageArchitectureMatchesSpecification matchesArch(arch, false);
- // Parse an architecture
- if (I != Stop && *I == '[')
- {
- ++I;
- // malformed
- if (unlikely(I == Stop))
- return 0;
- const char *End = I;
- bool Found = false;
- bool NegArch = false;
- while (I != Stop)
- {
- // look for whitespace or ending ']'
- for (;End != Stop && !isspace(*End) && *End != ']'; ++End);
- if (unlikely(End == Stop))
- return 0;
- if (*I == '!')
- {
- NegArch = true;
- ++I;
- }
- std::string arch(I, End);
- if (arch.empty() == false && matchesArch(arch.c_str()) == true)
- {
- Found = true;
- if (I[-1] != '!')
- NegArch = false;
- // we found a match, so fast-forward to the end of the wildcards
- for (; End != Stop && *End != ']'; ++End);
- }
- if (*End++ == ']') {
- I = End;
- break;
- }
- I = End;
- for (;I != Stop && isspace(*I) != 0; I++);
- }
- if (NegArch == true)
- Found = !Found;
- if (Found == false)
- Package = ""; /* not for this arch */
- }
- // Skip whitespace
- for (;I != Stop && isspace(*I) != 0; I++);
- }
- if (I != Stop && *I == '|')
- Op |= pkgCache::Dep::Or;
-
- if (I == Stop || *I == ',' || *I == '|')
- {
- if (I != Stop)
- for (I++; I != Stop && isspace(*I) != 0; I++);
- return I;
- }
-
- return 0;
- }
- /*}}}*/
- // ListParser::ParseDepends - Parse a dependency list /*{{{*/
- // ---------------------------------------------------------------------
- /* 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,
- const char *Tag,unsigned int Type)
- {
- const char *Start;
- const char *Stop;
- if (Section.Find(Tag,Start,Stop) == false)
- return true;
- string const pkgArch = Ver.Arch();
- while (1)
- {
- string Package;
- string Version;
- unsigned int Op;
- Start = ParseDepends(Start, Stop, Package, Version, Op, false, false);
- if (Start == 0)
- return _error->Error("Problem parsing dependency %s",Tag);
- size_t const found = Package.rfind(':');
- // If negative is unspecific it needs to apply on all architectures
- if (MultiArchEnabled == true && found == string::npos &&
- (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;
- if (NewDepends(Ver,Package,"none",Version,Op,Type) == false)
- return false;
- }
- else if (MultiArchEnabled == true && found != string::npos &&
- strcmp(Package.c_str() + found, ":any") != 0)
- {
- string Arch = Package.substr(found+1, string::npos);
- Package = Package.substr(0, found);
- // Such dependencies are not supposed to be accepted …
- // … but this is probably the best thing to do.
- if (Arch == "native")
- Arch = _config->Find("APT::Architecture");
- if (NewDepends(Ver,Package,Arch,Version,Op,Type) == false)
- return false;
- }
- else
- {
- if (NewDepends(Ver,Package,pkgArch,Version,Op,Type) == false)
- return false;
- if ((Type == pkgCache::Dep::Conflicts ||
- Type == pkgCache::Dep::DpkgBreaks ||
- Type == pkgCache::Dep::Replaces) &&
- NewDepends(Ver, Package,
- (pkgArch != "none") ? "none" : _config->Find("APT::Architecture"),
- Version,Op,Type) == false)
- return false;
- }
- if (Start == Stop)
- break;
- }
- return true;
- }
- /*}}}*/
- // ListParser::ParseProvides - Parse the provides list /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
- {
- const char *Start;
- const char *Stop;
- if (Section.Find("Provides",Start,Stop) == true)
- {
- string Package;
- string Version;
- string const Arch = Ver.Arch();
- 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 ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign) {
- if (NewProvidesAllArch(Ver, Package, Version) == false)
- return false;
- } else {
- if (NewProvides(Ver, Package, Arch, Version) == false)
- return false;
- }
- if (Start == Stop)
- break;
- }
- }
- if ((Ver->MultiArch & pkgCache::Version::Allowed) == pkgCache::Version::Allowed)
- {
- string const Package = string(Ver.ParentPkg().Name()).append(":").append("any");
- return NewProvidesAllArch(Ver, Package, Ver.VerStr());
- }
- else if ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign)
- return NewProvidesAllArch(Ver, Ver.ParentPkg().Name(), Ver.VerStr());
- return true;
- }
- /*}}}*/
- // ListParser::NewProvides - add provides for all architectures /*{{{*/
- bool debListParser::NewProvidesAllArch(pkgCache::VerIterator &Ver, string const &Package,
- string const &Version) {
- for (std::vector<string>::const_iterator a = Architectures.begin();
- a != Architectures.end(); ++a)
- {
- if (NewProvides(Ver, Package, *a, Version) == false)
- return false;
- }
- return true;
- }
- /*}}}*/
- // ListParser::GrabWord - Matches a word and returns /*{{{*/
- // ---------------------------------------------------------------------
- /* Looks for a word in a list of words - for ParseStatus */
- bool debListParser::GrabWord(string Word,WordList *List,unsigned char &Out)
- {
- for (unsigned int C = 0; List[C].Str != 0; C++)
- {
- if (strcasecmp(Word.c_str(),List[C].Str) == 0)
- {
- Out = List[C].Val;
- return true;
- }
- }
- return false;
- }
- /*}}}*/
- // ListParser::Step - Move to the next section in the file /*{{{*/
- // ---------------------------------------------------------------------
- /* This has to be careful to only process the correct architecture */
- bool debListParser::Step()
- {
- iOffset = Tags.Offset();
- while (Tags.Step(Section) == true)
- {
- /* 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 */
- string const Architecture = Section.FindS("Architecture");
- if (Arch.empty() == true || Arch == "any" || MultiArchEnabled == false)
- {
- if (APT::Configuration::checkArchitecture(Architecture) == true)
- return true;
- /* parse version stanzas without an architecture only in the status file
- (and as misfortune bycatch flat-archives) */
- if ((Arch.empty() == true || Arch == "any") && Architecture.empty() == true)
- return true;
- }
- else
- {
- if (Architecture == Arch)
- return true;
- if (Architecture == "all" && Arch == _config->Find("APT::Architecture"))
- return true;
- }
- iOffset = Tags.Offset();
- }
- return false;
- }
- /*}}}*/
- // ListParser::LoadReleaseInfo - Load the release information /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,
- FileFd &File, string component)
- {
- // apt-secure does no longer download individual (per-section) Release
- // file. to provide Component pinning we use the section name now
- map_ptrloc const storage = WriteUniqString(component);
- FileI->Component = storage;
- pkgTagFile TagFile(&File, File.Size());
- pkgTagSection Section;
- if (_error->PendingError() == true || TagFile.Step(Section) == false)
- return false;
- std::string data;
- #define APT_INRELEASE(TAG, STORE) \
- data = Section.FindS(TAG); \
- if (data.empty() == false) \
- { \
- map_ptrloc const storage = WriteUniqString(data); \
- STORE = storage; \
- }
- APT_INRELEASE("Suite", FileI->Archive)
- APT_INRELEASE("Component", FileI->Component)
- APT_INRELEASE("Version", FileI->Version)
- APT_INRELEASE("Origin", FileI->Origin)
- APT_INRELEASE("Codename", FileI->Codename)
- APT_INRELEASE("Label", FileI->Label)
- #undef APT_INRELEASE
- Section.FindFlag("NotAutomatic", FileI->Flags, pkgCache::Flag::NotAutomatic);
- Section.FindFlag("ButAutomaticUpgrades", FileI->Flags, pkgCache::Flag::ButAutomaticUpgrades);
- return !_error->PendingError();
- }
- /*}}}*/
- // ListParser::GetPrio - Convert the priority from a string /*{{{*/
- // ---------------------------------------------------------------------
- /* */
- unsigned char debListParser::GetPrio(string Str)
- {
- unsigned char Out;
- if (GrabWord(Str,PrioList,Out) == false)
- Out = pkgCache::State::Extra;
-
- return Out;
- }
- /*}}}*/
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