X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/3c124dde9567dd8c45d271bf2eaadffa5754f7d9..e426a5ff1cd02797b29f5781be4d6fc8bdf44610:/apt-pkg/deb/deblistparser.cc?ds=sidebyside diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc index 669c5cd50..66108d822 100644 --- a/apt-pkg/deb/deblistparser.cc +++ b/apt-pkg/deb/deblistparser.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: deblistparser.cc,v 1.13 1998/12/14 08:07:29 jgg Exp $ +// $Id: deblistparser.cc,v 1.29.2.5 2004/01/06 01:43:44 mdz Exp $ /* ###################################################################### Package Cache Generator - Generator for the cache structure. @@ -13,16 +13,28 @@ #include #include #include -#include +#include +#include +#include +#include +#include -#include +#include /*}}}*/ +static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Important}, + {"required",pkgCache::State::Required}, + {"standard",pkgCache::State::Standard}, + {"optional",pkgCache::State::Optional}, + {"extra",pkgCache::State::Extra}, + {}}; + // ListParser::debListParser - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -debListParser::debListParser(FileFd &File) : Tags(File) +debListParser::debListParser(FileFd *File) : Tags(File) { + Arch = _config->Find("APT::architecture"); } /*}}}*/ // ListParser::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/ @@ -44,7 +56,7 @@ string debListParser::Package() { string Result = Section.FindS("Package"); if (Result.empty() == true) - _error->Error("Encoutered a section with no Package: header"); + _error->Error("Encountered a section with no Package: header"); return Result; } /*}}}*/ @@ -65,6 +77,7 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver) { // Parse the section Ver->Section = UniqFindTagWrite("Section"); + Ver->Arch = UniqFindTagWrite("Architecture"); // Archive Size Ver->Size = (unsigned)Section.FindI("Size"); @@ -77,15 +90,9 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver) const char *Start; const char *Stop; if (Section.Find("Priority",Start,Stop) == true) - { - WordList PrioList[] = {{"important",pkgCache::State::Important}, - {"required",pkgCache::State::Required}, - {"standard",pkgCache::State::Standard}, - {"optional",pkgCache::State::Optional}, - {"extra",pkgCache::State::Extra}}; - if (GrabWord(string(Start,Stop-Start),PrioList, - _count(PrioList),Ver->Priority) == false) - return _error->Error("Malformed Priority line"); + { + if (GrabWord(string(Start,Stop-Start),PrioList,Ver->Priority) == false) + Ver->Priority = pkgCache::State::Extra; } if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false) @@ -98,15 +105,75 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver) 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 const lang = APT::Configuration::getLanguages(); + for (std::vector::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 value = Section.FindS("Description-md5"); + + if (value.empty()) + { + MD5Summation md5; + md5.Add((Description() + "\n").c_str()); + return md5.Result(); + } else + return MD5SumValue(value); +} + /*}}}*/ // ListParser::UsePackage - Update a package structure /*{{{*/ // --------------------------------------------------------------------- /* This is called to update the package with any new information @@ -118,20 +185,66 @@ bool debListParser::UsePackage(pkgCache::PkgIterator Pkg, Pkg->Section = UniqFindTagWrite("Section"); if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false) return false; - if (Section.FindFlag("Immediate-Configure",Pkg->Flags,pkgCache::Flag::ImmediateConf) == false) + if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false) return false; + + if (strcmp(Pkg.Name(),"apt") == 0) + 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 **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 *I = S; + for (; Start != End; Start++) + { + if (isspace(*Start) == 0) + *I++ = tolower_ascii(*Start); + if (*Start == '<' && Start[1] != '<' && Start[1] != '=') + *I++ = '='; + if (*Start == '>' && Start[1] != '>' && Start[1] != '=') + *I++ = '='; + } + + Result = AddCRC16(Result,S,I - 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, uninstalled, + status = not-installed, unpacked, half-configured, half-installed, config-files, post-inst-failed, removal-failed, installed @@ -157,9 +270,9 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, {"install",pkgCache::State::Install}, {"hold",pkgCache::State::Hold}, {"deinstall",pkgCache::State::DeInstall}, - {"purge",pkgCache::State::Purge}}; - if (GrabWord(string(Start,I-Start),WantList, - _count(WantList),Pkg->SelectedState) == false) + {"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 @@ -173,9 +286,9 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, 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, - _count(FlagList),Pkg->InstState) == false) + {"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 @@ -190,13 +303,14 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, {"unpacked",pkgCache::State::UnPacked}, {"half-configured",pkgCache::State::HalfConfigured}, {"installed",pkgCache::State::Installed}, - {"uninstalled",pkgCache::State::UnInstalled}, {"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, - _count(StatusList),Pkg->CurrentState) == false) + {"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 @@ -214,6 +328,65 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, 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 /*{{{*/ // --------------------------------------------------------------------- @@ -221,7 +394,8 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, bit by bit. */ const char *debListParser::ParseDepends(const char *Start,const char *Stop, string &Package,string &Ver, - unsigned int &Op) + unsigned int &Op, bool const &ParseArchFlags, + bool const &StripMultiArch) { // Strip off leading space for (;Start != Stop && isspace(*Start) != 0; Start++); @@ -240,7 +414,14 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop, // Stash the package name Package.assign(Start,I - Start); - + + // We don't want to confuse library users which can't handle MultiArch + if (StripMultiArch == true) { + size_t const found = Package.rfind(':'); + if (found != string::npos) + Package = Package.substr(0,found); + } + // Skip white space to the '(' for (;I != Stop && isspace(*I) != 0 ; I++); @@ -251,60 +432,7 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop, for (I++; I != Stop && isspace(*I) != 0 ; I++); if (I + 3 >= Stop) return 0; - - // 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; - } + I = ConvertRelation(I,Op); // Skip whitespace for (;I != Stop && isspace(*I) != 0; I++); @@ -313,17 +441,75 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop, if (I == Stop || Start == I) return 0; - Ver = string(Start,I-Start); + // Skip trailing whitespace + const char *End = I; + for (; End > Start && isspace(End[-1]); End--); + + Ver.assign(Start,End-Start); I++; } else { - Ver = string(); + Ver.clear(); Op = pkgCache::Dep::NoOp; } // Skip whitespace for (;I != Stop && isspace(*I) != 0; I++); + + if (ParseArchFlags == true) + { + string arch = _config->Find("APT::Architecture"); + + // Parse an architecture + if (I != Stop && *I == '[') + { + // malformed + I++; + if (I == Stop) + return 0; + + const char *End = I; + bool Found = false; + bool NegArch = false; + while (I != Stop) + { + // look for whitespace or ending ']' + while (End != Stop && !isspace(*End) && *End != ']') + End++; + + if (End == Stop) + return 0; + + if (*I == '!') + { + NegArch = true; + I++; + } + + if (stringcmp(arch,I,End) == 0) + Found = true; + + if (*End++ == ']') { + I = End; + break; + } + + I = End; + for (;I != Stop && isspace(*I) != 0; I++); + } + + if (NegArch) + 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; @@ -386,11 +572,12 @@ bool debListParser::ParseProvides(pkgCache::VerIterator Ver) Start = ParseDepends(Start,Stop,Package,Version,Op); if (Start == 0) return _error->Error("Problem parsing Provides line"); - if (Op != pkgCache::Dep::NoOp) - return _error->Error("Malformed provides line"); - - if (NewProvides(Ver,Package,Version) == false) - return false; + 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; + } if (Start == Stop) break; @@ -402,10 +589,9 @@ bool debListParser::ParseProvides(pkgCache::VerIterator Ver) // 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,int Count, - unsigned char &Out) +bool debListParser::GrabWord(string Word,WordList *List,unsigned char &Out) { - for (int C = 0; C != Count; C++) + for (unsigned int C = 0; List[C].Str != 0; C++) { if (strcasecmp(Word.c_str(),List[C].Str) == 0) { @@ -422,17 +608,17 @@ bool debListParser::GrabWord(string Word,WordList *List,int Count, bool debListParser::Step() { iOffset = Tags.Offset(); - string Arch = _config->Find("APT::architecture"); while (Tags.Step(Section) == true) - { - /* See if this is the correct Architecture, if it isnt then we - drop the whole section */ + { + /* 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) return true; - if (stringcmp(Start,Stop,Arch.begin(),Arch.end()) == 0) + if (stringcmp(Arch,Start,Stop) == 0) return true; if (stringcmp(Start,Stop,"all") == 0) @@ -447,16 +633,23 @@ bool debListParser::Step() // --------------------------------------------------------------------- /* */ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, - FileFd &File) + FileFd &File, string component) { - pkgTagFile Tags(File); + pkgTagFile Tags(&File, File.Size() + 256); // XXX pkgTagSection Section; 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); + + // apt-secure does no longer download individual (per-section) Release + // file. to provide Component pinning we use the section name now + FileI->Component = WriteUniqString(component); + const char *Start; const char *Stop; - if (Section.Find("Archive",Start,Stop) == true) + if (Section.Find("Suite",Start,Stop) == true) FileI->Archive = WriteUniqString(Start,Stop - Start); if (Section.Find("Component",Start,Stop) == true) FileI->Component = WriteUniqString(Start,Stop - Start); @@ -464,6 +657,8 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, FileI->Version = WriteUniqString(Start,Stop - Start); if (Section.Find("Origin",Start,Stop) == true) FileI->Origin = WriteUniqString(Start,Stop - Start); + if (Section.Find("Codename",Start,Stop) == true) + FileI->Codename = WriteUniqString(Start,Stop - Start); if (Section.Find("Label",Start,Stop) == true) FileI->Label = WriteUniqString(Start,Stop - Start); if (Section.Find("Architecture",Start,Stop) == true) @@ -472,7 +667,19 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, if (Section.FindFlag("NotAutomatic",FileI->Flags, pkgCache::Flag::NotAutomatic) == false) _error->Warning("Bad NotAutomatic flag"); - + 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; +} + /*}}}*/