X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/f55a958ff2251f0061ab907157c99a350e56025f..f44344b3075e2a93e3c17a09e7774e8391b42206:/apt-pkg/deb/deblistparser.cc diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc index 28298aa36..157a465f4 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 1.1 1998/07/04 05:58:08 jgg Exp $ +// $Id: deblistparser.cc,v 1.17 1999/02/21 08:38:53 jgg Exp $ /* ###################################################################### Package Cache Generator - Generator for the cache structure. @@ -10,29 +10,19 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#include -#include +#include +#include +#include +#include + #include /*}}}*/ // ListParser::debListParser - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -debListParser::debListParser(File &File) : Tags(File) -{ - Step(); -} - /*}}}*/ -// ListParser::FindTag - Find the tag and return a string /*{{{*/ -// --------------------------------------------------------------------- -/* */ -string debListParser::FindTag(const char *Tag) +debListParser::debListParser(FileFd &File) : Tags(File) { - const char *Start; - const char *Stop; - if (Section.Find(Tag,Start,Stop) == false) - return string(); - return string(Start,Stop - Start); } /*}}}*/ // ListParser::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/ @@ -47,47 +37,14 @@ unsigned long debListParser::UniqFindTagWrite(const char *Tag) return WriteUniqString(Start,Stop - Start); } /*}}}*/ -// ListParser::HandleFlag - Sets a flag variable based on a tag /*{{{*/ -// --------------------------------------------------------------------- -/* This checks the tag for true/false yes/no etc */ -bool debListParser::HandleFlag(const char *Tag,unsigned long &Flags, - unsigned long Flag) -{ - const char *Start; - const char *Stop; - if (Section.Find(Tag,Start,Stop) == false) - return true; - - int Set = 2; - if (strncasecmp(Start,"yes",Stop - Start) == 0) - Set = 1; - if (strncasecmp(Start,"true",Stop - Start) == 0) - Set = 1; - if (strncasecmp(Start,"no",Stop - Start) == 0) - Set = 0; - if (strncasecmp(Start,"false",Stop - Start) == 0) - Set = 0; - if (Set == 2) - { - _error->Warning("Unknown flag value"); - return true; - } - - if (Set == 0) - Flags &= ~Flag; - if (Set == 1) - Flags |= Flag; - return true; -} - /*}}}*/ // ListParser::Package - Return the package name /*{{{*/ // --------------------------------------------------------------------- /* This is to return the name of the package this section describes */ string debListParser::Package() { - string Result = FindTag("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; } /*}}}*/ @@ -98,24 +55,56 @@ string debListParser::Package() entry is assumed to only describe package properties */ string debListParser::Version() { - return FindTag("Version"); -} - /*}}}*/ -// ListParser::NewPackage - Fill in the package structure /*{{{*/ -// --------------------------------------------------------------------- -/* This is called when a new package structure is created. It must fill - in the static package information. */ -bool debListParser::NewPackage(pkgCache::PkgIterator Pkg) -{ - // Debian doesnt have anything, everything is condionally megered - return true; + return Section.FindS("Version"); } /*}}}*/ // ListParser::NewVersion - Fill in the version structure /*{{{*/ // --------------------------------------------------------------------- /* */ 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"); + + // Unpacked Size (in K) + Ver->InstalledSize = (unsigned)Section.FindI("Installed-Size"); + Ver->InstalledSize *= 1024; + + // Priority + 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 (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,"Replaces",pkgCache::Dep::Replaces) == false) + return false; + + if (ParseProvides(Ver) == false) + return false; + return true; } /*}}}*/ @@ -127,18 +116,21 @@ bool debListParser::UsePackage(pkgCache::PkgIterator Pkg, pkgCache::VerIterator Ver) { if (Pkg->Section == 0) - if ((Pkg->Section = UniqFindTagWrite("Section")) == 0) - return false; - if (HandleFlag("Essential",Pkg->Flags,pkgCache::Essential) == false) + Pkg->Section = UniqFindTagWrite("Section"); + if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false) return false; - if (HandleFlag("Immediate-Configure",Pkg->Flags,pkgCache::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::ParseStatus - Parse the status feild /*{{{*/ +// ListParser::ParseStatus - Parse the status field /*{{{*/ // --------------------------------------------------------------------- /* Status lines are of the form, Status: want flag status @@ -166,11 +158,11 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, return _error->Error("Malformed Status line"); // Process the want field - WordList WantList[] = {{"unknown",pkgCache::Unknown}, - {"install",pkgCache::Install}, - {"hold",pkgCache::Hold}, - {"deinstall",pkgCache::DeInstall}, - {"purge",pkgCache::Purge}}; + 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, _count(WantList),Pkg->SelectedState) == false) return _error->Error("Malformed 1st word in the Status line"); @@ -183,10 +175,10 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, return _error->Error("Malformed status line, no 2nd word"); // Process the flag field - WordList FlagList[] = {{"ok",pkgCache::Ok}, - {"reinstreq",pkgCache::ReInstReq}, - {"hold",pkgCache::HoldInst}, - {"hold-reinstreq",pkgCache::HoldReInstReq}}; + 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) return _error->Error("Malformed 2nd word in the Status line"); @@ -199,15 +191,15 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, return _error->Error("Malformed Status line, no 3rd word"); // Process the flag field - WordList StatusList[] = {{"not-installed",pkgCache::NotInstalled}, - {"unpacked",pkgCache::UnPacked}, - {"half-configured",pkgCache::HalfConfigured}, - {"installed",pkgCache::Installed}, - {"uninstalled",pkgCache::UnInstalled}, - {"half-installed",pkgCache::HalfInstalled}, - {"config-files",pkgCache::ConfigFiles}, - {"post-inst-failed",pkgCache::HalfConfigured}, - {"removal-failed",pkgCache::HalfInstalled}}; + WordList StatusList[] = {{"not-installed",pkgCache::State::NotInstalled}, + {"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}, + {"post-inst-failed",pkgCache::State::HalfConfigured}, + {"removal-failed",pkgCache::State::HalfInstalled}}; if (GrabWord(string(Start,I-Start),StatusList, _count(StatusList),Pkg->CurrentState) == false) return _error->Error("Malformed 3rd word in the Status line"); @@ -216,8 +208,8 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, 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::NotInstalled || - Pkg->CurrentState == pkgCache::ConfigFiles)) + 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"); @@ -225,6 +217,190 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg, Pkg->CurrentVer = Ver.Index(); } + return true; +} + /*}}}*/ +// 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) +{ + // 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++); + + // Malformed, no '(' + if (I != Stop && *I == ')') + return 0; + + if (I == Start) + return 0; + + // Stash the package name + Package.assign(Start,I - Start); + + // 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; + + // 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; + } + + // Skip whitespace + for (;I != Stop && isspace(*I) != 0; I++); + Start = I; + for (;I != Stop && *I != ')'; I++); + if (I == Stop || Start == I) + return 0; + + Ver = string(Start,I-Start); + I++; + } + else + { + Ver = string(); + Op = pkgCache::Dep::NoOp; + } + + // 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 Package; + string Version; + unsigned int Op; + + while (1) + { + 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) + 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) == false) + return true; + + string Package; + string Version; + 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) + return _error->Error("Malformed provides line"); + + if (NewProvides(Ver,Package,Version) == false) + return false; + + if (Start == Stop) + break; + } + return true; } /*}}}*/ @@ -247,9 +423,61 @@ bool debListParser::GrabWord(string Word,WordList *List,int Count, /*}}}*/ // ListParser::Step - Move to the next section in the file /*{{{*/ // --------------------------------------------------------------------- -/* */ +/* This has to be carefull to only process the correct architecture */ bool debListParser::Step() { - return Tags.Step(Section); + 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 */ + const char *Start; + const char *Stop; + if (Section.Find("Architecture",Start,Stop) == false) + return true; + + if (stringcmp(Start,Stop,Arch.begin(),Arch.end()) == 0) + return true; + + if (stringcmp(Start,Stop,"all") == 0) + return true; + + iOffset = Tags.Offset(); + } + return false; +} + /*}}}*/ +// ListParser::LoadReleaseInfo - Load the release information /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, + FileFd &File) +{ + pkgTagFile Tags(File); + pkgTagSection Section; + if (Tags.Step(Section) == false) + return false; + + const char *Start; + const char *Stop; + if (Section.Find("Archive",Start,Stop) == true) + FileI->Archive = WriteUniqString(Start,Stop - Start); + if (Section.Find("Component",Start,Stop) == true) + FileI->Component = WriteUniqString(Start,Stop - Start); + if (Section.Find("Version",Start,Stop) == true) + FileI->Version = WriteUniqString(Start,Stop - Start); + if (Section.Find("Origin",Start,Stop) == true) + FileI->Origin = WriteUniqString(Start,Stop - Start); + if (Section.Find("Label",Start,Stop) == true) + FileI->Label = WriteUniqString(Start,Stop - Start); + if (Section.Find("Architecture",Start,Stop) == true) + FileI->Architecture = WriteUniqString(Start,Stop - Start); + + if (Section.FindFlag("NotAutomatic",FileI->Flags, + pkgCache::Flag::NotAutomatic) == false) + _error->Warning("Bad NotAutomatic flag"); + + return !_error->PendingError(); } /*}}}*/