X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/dcb79bae22bd3e4739db39e56d00b4d65ff42269..54debba5d21783160e78706f6c21b274ca4b805b:/apt-pkg/deb/deblistparser.cc?ds=inline diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc index 4c37eb775..6e78ed42b 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 1.3 1998/07/05 05:34:00 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. @@ -10,52 +10,31 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#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(File &File) : Tags(File) +debListParser::debListParser(FileFd *File) : Tags(File) { -} - /*}}}*/ -// ListParser::FindTag - Find the tag and return a string /*{{{*/ -// --------------------------------------------------------------------- -/* */ -string debListParser::FindTag(const char *Tag) -{ - const char *Start; - const char *Stop; - if (Section.Find(Tag,Start,Stop) == false) - return string(); - return string(Start,Stop - Start); -} - /*}}}*/ -// ListParser::FindTagI - Find the tag and return an int /*{{{*/ -// --------------------------------------------------------------------- -/* */ -signed long debListParser::FindTagI(const char *Tag,signed long Default) -{ - const char *Start; - const char *Stop; - if (Section.Find(Tag,Start,Stop) == false) - return Default; - - // Copy it into a temp buffer so we can use strtol - char S[300]; - if ((unsigned)(Stop - Start) >= sizeof(S)) - return Default; - strncpy(S,Start,Stop-Start); - S[Stop - Start] = 0; - - char *End; - signed long Result = strtol(S,&End,10); - if (S == End) - return Default; - return Result; + Arch = _config->Find("APT::architecture"); } /*}}}*/ // ListParser::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/ @@ -70,47 +49,14 @@ 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; } /*}}}*/ @@ -121,7 +67,7 @@ string debListParser::Package() entry is assumed to only describe package properties */ string debListParser::Version() { - return FindTag("Version"); + return Section.FindS("Version"); } /*}}}*/ // ListParser::NewVersion - Fill in the version structure /*{{{*/ @@ -130,52 +76,88 @@ string debListParser::Version() bool debListParser::NewVersion(pkgCache::VerIterator Ver) { // Parse the section - if ((Ver->Section = UniqFindTagWrite("Section")) == 0) - return _error->Warning("Missing Section tag"); + Ver->Section = UniqFindTagWrite("Section"); + Ver->Arch = UniqFindTagWrite("Architecture"); // Archive Size - if ((Ver->Size = (unsigned)FindTagI("Size")) == 0) - return _error->Error("Unparsable Size field"); + Ver->Size = (unsigned)Section.FindI("Size"); // Unpacked Size (in K) - if ((Ver->InstalledSize = (unsigned)FindTagI("Installed-Size")) == 0) - return _error->Error("Unparsable Installed-Size field"); + 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::Important}, - {"required",pkgCache::Required}, - {"standard",pkgCache::Standard}, - {"optional",pkgCache::Optional}, - {"extra",pkgCache::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::Depends) == false) + if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false) return false; - if (ParseDepends(Ver,"PreDepends",pkgCache::PreDepends) == false) + if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false) return false; - if (ParseDepends(Ver,"Suggests",pkgCache::Suggests) == false) + if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false) return false; - if (ParseDepends(Ver,"Recommends",pkgCache::Recommends) == false) + if (ParseDepends(Ver,"Recommends",pkgCache::Dep::Recommends) == false) return false; - if (ParseDepends(Ver,"Conflicts",pkgCache::Conflicts) == false) + if (ParseDepends(Ver,"Conflicts",pkgCache::Dep::Conflicts) == false) return false; - if (ParseDepends(Ver,"Replaces",pkgCache::Depends) == false) + if (ParseDepends(Ver,"Replaces",pkgCache::Dep::Replaces) == 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() +{ + if (DescriptionLanguage().empty()) + return Section.FindS("Description"); + else + return Section.FindS(("Description-" + pkgIndexFile::LanguageCode()).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() +{ + return Section.FindS("Description").empty() ? pkgIndexFile::LanguageCode() : ""; +} + /*}}}*/ +// ListParser::Description - Return the description_md5 MD5SumValue /*{{{*/ +// --------------------------------------------------------------------- +/* This is to return the md5 string to allow the check if is the right + description. If thisreturns a blank string then calculate the md5 + value. */ +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 @@ -184,24 +166,68 @@ 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::VersionHash - Compute a unique hash for this version /*{{{*/ +// --------------------------------------------------------------------- +/* */ +unsigned short debListParser::VersionHash() +{ + const char *Sections[] ={"Installed-Size", + "Depends", + "Pre-Depends", +// "Suggests", +// "Recommends", + "Conflicts", + "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(*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 @@ -223,13 +249,13 @@ 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}}; - if (GrabWord(string(Start,I-Start),WantList, - _count(WantList),Pkg->SelectedState) == false) + 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 @@ -240,12 +266,12 @@ 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}}; - if (GrabWord(string(Start,I-Start),FlagList, - _count(FlagList),Pkg->InstState) == false) + 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 @@ -256,25 +282,24 @@ 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}}; - if (GrabWord(string(Start,I-Start),StatusList, - _count(StatusList),Pkg->CurrentState) == false) + 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}, + {"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::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"); @@ -284,6 +309,65 @@ 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 /*{{{*/ // --------------------------------------------------------------------- @@ -291,7 +375,7 @@ 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 ParseArchFlags) { // Strip off leading space for (;Start != Stop && isspace(*Start) != 0; Start++); @@ -321,60 +405,7 @@ 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::LessEq; - break; - } - - if (*I == '<') - { - I++; - Op = pkgCache::Less; - break; - } - - // < is the same as <= and << is really Cs < for some reason - Op = pkgCache::LessEq; - break; - - case '>': - I++; - if (*I == '=') - { - I++; - Op = pkgCache::GreaterEq; - break; - } - - if (*I == '>') - { - I++; - Op = pkgCache::Greater; - break; - } - - // > is the same as >= and >> is really Cs > for some reason - Op = pkgCache::GreaterEq; - break; - - case '=': - Op = pkgCache::Equals; - I++; - break; - - // HACK around bad package definitions - default: - Op = pkgCache::Equals; - break; - } + I = ConvertRelation(I,Op); // Skip whitespace for (;I != Stop && isspace(*I) != 0; I++); @@ -383,19 +414,77 @@ 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 = string(Start,End-Start); I++; } else { Ver = string(); - Op = pkgCache::NoOp; + 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::Or; + Op |= pkgCache::Dep::Or; if (I == Stop || *I == ',' || *I == '|') { @@ -423,13 +512,16 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver, string Version; unsigned int Op; - while ((Start = ParseDepends(Start,Stop,Package,Version,Op)) != Stop) + 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; } @@ -453,7 +545,7 @@ 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::NoOp) + if (Op != pkgCache::Dep::NoOp) return _error->Error("Malformed provides line"); if (NewProvides(Ver,Package,Version) == false) @@ -469,10 +561,9 @@ 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) { @@ -490,20 +581,19 @@ bool debListParser::Step() { iOffset = Tags.Offset(); 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 (strncmp(Start,"i386",Stop - Start) == 0 && - strlen("i386") == (unsigned)(Stop - Start)) + + if (stringcmp(Arch,Start,Stop) == 0) return true; - if (strncmp(Start,"all",Stop - Start) == 0 && - 3 == (unsigned)(Stop - Start)) + if (stringcmp(Start,Stop,"all") == 0) return true; iOffset = Tags.Offset(); @@ -511,3 +601,48 @@ bool debListParser::Step() return false; } /*}}}*/ +// ListParser::LoadReleaseInfo - Load the release information /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI, + FileFd &File) +{ + pkgTagFile Tags(&File, File.Size() + 256); // XXX + pkgTagSection Section; + if (Tags.Step(Section) == false) + return false; + + const char *Start; + const char *Stop; + 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); + 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(); +} + /*}}}*/ +// 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; +} + /*}}}*/