// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: deblistparser.cc,v 1.2 1998/07/04 22:32:17 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.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
-#include <pkglib/deblistparser.h>
-#include <pkglib/error.h>
-#include <system.h>
+#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/mmap.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/tagfile.h>
+#include <apt-pkg/macros.h>
+
+#include <stddef.h>
+#include <string.h>
+#include <algorithm>
+#include <string>
+#include <vector>
+#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},
+ {NULL, 0}};
+
// ListParser::debListParser - Constructor /*{{{*/
// ---------------------------------------------------------------------
-/* */
-debListParser::debListParser(File &File) : Tags(File)
-{
+/* 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::FindTag - Find the tag and return a string /*{{{*/
+// ListParser::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/
// ---------------------------------------------------------------------
/* */
-string debListParser::FindTag(const char *Tag)
+map_stringitem_t debListParser::UniqFindTagWrite(const char *Tag)
{
const char *Start;
const char *Stop;
if (Section.Find(Tag,Start,Stop) == false)
- return string();
- return string(Start,Stop - Start);
+ return 0;
+ return WriteUniqString(Start,Stop - Start);
}
/*}}}*/
-// ListParser::FindTagI - Find the tag and return an int /*{{{*/
+// ListParser::Package - Return the package name /*{{{*/
// ---------------------------------------------------------------------
-/* */
-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;
+/* 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::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/
+// ListParser::Architecture - Return the package arch /*{{{*/
// ---------------------------------------------------------------------
-/* */
-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);
+/* This will return the Architecture of the package this section describes */
+string debListParser::Architecture() {
+ return Section.FindS("Architecture");
}
/*}}}*/
-// ListParser::HandleFlag - Sets a flag variable based on a tag /*{{{*/
+// ListParser::ArchitectureAll /*{{{*/
// ---------------------------------------------------------------------
-/* 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");
- if (Result.empty() == true)
- _error->Error("Encoutered a section with no Package: header");
- return Result;
+/* */
+bool debListParser::ArchitectureAll() {
+ return Section.FindS("Architecture") == "all";
}
/*}}}*/
// ListParser::Version - Return the version string /*{{{*/
entry is assumed to only describe package properties */
string debListParser::Version()
{
- return FindTag("Version");
+ return Section.FindS("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)
+unsigned char debListParser::ParseMultiArch(bool const showErrors) /*{{{*/
{
- // Debian doesnt have anything, everything is condionally megered
- return true;
+ unsigned char MA;
+ string const MultiArch = Section.FindS("Multi-Arch");
+ if (MultiArch.empty() == true)
+ MA = pkgCache::Version::None;
+ else if (MultiArch == "same") {
+ if (ArchitectureAll() == true)
+ {
+ if (showErrors == true)
+ _error->Warning("Architecture: all package '%s' can't be Multi-Arch: same",
+ Section.FindS("Package").c_str());
+ MA = pkgCache::Version::None;
+ }
+ else
+ MA = pkgCache::Version::Same;
+ }
+ else if (MultiArch == "foreign")
+ MA = pkgCache::Version::Foreign;
+ else if (MultiArch == "allowed")
+ MA = pkgCache::Version::Allowed;
+ else
+ {
+ if (showErrors == true)
+ _error->Warning("Unknown Multi-Arch type '%s' for package '%s'",
+ MultiArch.c_str(), Section.FindS("Package").c_str());
+ MA = pkgCache::Version::None;
+ }
+
+ if (ArchitectureAll() == true)
+ MA |= pkgCache::Version::All;
+
+ return MA;
}
/*}}}*/
// ListParser::NewVersion - Fill in the version structure /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool debListParser::NewVersion(pkgCache::VerIterator Ver)
+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->MultiArch = ParseMultiArch(true);
// Archive Size
- if ((Ver->Size = (unsigned)FindTagI("Size")) == 0)
- return _error->Error("Unparsable Size field");
-
+ Ver->Size = Section.FindULL("Size");
// Unpacked Size (in K)
- if ((Ver->InstalledSize = (unsigned)FindTagI("Installed-Size")) == 0)
- return _error->Error("Unparsable Installed-Size field");
+ Ver->InstalledSize = Section.FindULL("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::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(std::string const &lang)
+{
+ if (lang.empty())
+ return Section.FindS("Description");
+ else
+ return Section.FindS(string("Description-").append(lang).c_str());
+}
+ /*}}}*/
+// ListParser::AvailableDescriptionLanguages /*{{{*/
+std::vector<std::string> debListParser::AvailableDescriptionLanguages()
+{
+ std::vector<std::string> const understood = APT::Configuration::getLanguages();
+ std::vector<std::string> avail;
+ if (Section.Exists("Description") == true)
+ avail.push_back("");
+ for (std::vector<std::string>::const_iterator lang = understood.begin(); lang != understood.end(); ++lang)
+ {
+ std::string const tagname = "Description-" + *lang;
+ if (Section.Exists(tagname.c_str()) == true)
+ avail.push_back(*lang);
+ }
+ return avail;
+}
+ /*}}}*/
+// ListParser::Description_md5 - 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)
+bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
+ pkgCache::VerIterator &Ver)
{
- if (Pkg->Section == 0)
- if ((Pkg->Section = UniqFindTagWrite("Section")) == 0)
+ 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 (HandleFlag("Essential",Pkg->Flags,pkgCache::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)
+ {
+ 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::ParseStatus - Parse the status feild /*{{{*/
+// 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, uninstalled,
+ 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)
+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++);
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},
+ {NULL, 0}};
+ if (GrabWord(string(Start,I-Start),WantList,Pkg->SelectedState) == false)
return _error->Error("Malformed 1st word in the Status line");
// Isloate the next word
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},
+ {NULL, 0}};
+ if (GrabWord(string(Start,I-Start),FlagList,Pkg->InstState) == false)
return _error->Error("Malformed 2nd word in the Status line");
// Isloate the last word
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},
+ {"triggers-awaited",pkgCache::State::TriggersAwaited},
+ {"triggers-pending",pkgCache::State::TriggersPending},
+ {"post-inst-failed",pkgCache::State::HalfConfigured},
+ {"removal-failed",pkgCache::State::HalfInstalled},
+ {NULL, 0}};
+ 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");
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,
+ std::string &Package,std::string &Ver,unsigned int &Op)
+ { return ParseDepends(Start, Stop, Package, Ver, Op, false, true, false); }
+const char *debListParser::ParseDepends(const char *Start,const char *Stop,
+ std::string &Package,std::string &Ver,unsigned int &Op,
+ bool const &ParseArchFlags)
+ { return ParseDepends(Start, Stop, Package, Ver, Op, ParseArchFlags, true, false); }
+const char *debListParser::ParseDepends(const char *Start,const char *Stop,
+ std::string &Package,std::string &Ver,unsigned int &Op,
+ bool const &ParseArchFlags, bool const &StripMultiArch)
+ { return ParseDepends(Start, Stop, Package, Ver, Op, ParseArchFlags, StripMultiArch, false); }
+const char *debListParser::ParseDepends(const char *Start,const char *Stop,
+ string &Package,string &Ver,
+ unsigned int &Op, bool const &ParseArchFlags,
+ bool const &StripMultiArch,
+ bool const &ParseRestrictionsList)
+{
+ // 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 != '<' && *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 (ParseRestrictionsList == true)
+ {
+ // Parse a restrictions list
+ if (I != Stop && *I == '<')
+ {
+ ++I;
+ // malformed
+ if (unlikely(I == Stop))
+ return 0;
+
+ std::vector<string> const profiles = APT::Configuration::getBuildProfiles();
+
+ const char *End = I;
+ bool Found = false;
+ bool NegRestriction = false;
+ while (I != Stop)
+ {
+ // look for whitespace or ending '>'
+ for (;End != Stop && !isspace(*End) && *End != '>'; ++End);
+
+ if (unlikely(End == Stop))
+ return 0;
+
+ if (*I == '!')
+ {
+ NegRestriction = true;
+ ++I;
+ }
+
+ std::string restriction(I, End);
+
+ std::string prefix = "profile.";
+ // only support for "profile" prefix, ignore others
+ if (restriction.size() > prefix.size() &&
+ restriction.substr(0, prefix.size()) == prefix)
+ {
+ // get the name of the profile
+ restriction = restriction.substr(prefix.size());
+
+ if (restriction.empty() == false && profiles.empty() == false &&
+ std::find(profiles.begin(), profiles.end(), restriction) != profiles.end())
+ {
+ Found = true;
+ if (I[-1] != '!')
+ NegRestriction = 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 (NegRestriction == true)
+ Found = !Found;
+
+ if (Found == false)
+ Package = ""; /* not for this restriction */
+ }
+
+ // 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, 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,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)
{
/*}}}*/
// ListParser::Step - Move to the next section in the file /*{{{*/
// ---------------------------------------------------------------------
-/* This has to be carefull to only process the correct architecture */
+/* 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 isnt then we
- drop the whole section */
- 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))
- return 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 (strncmp(Start,"all",Stop - Start) == 0 &&
- 3 == (unsigned)(Stop - Start))
- return true;
+ 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_stringitem_t 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_stringitem_t 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;
+}
+ /*}}}*/
+#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
+bool debListParser::SameVersion(unsigned short const Hash, /*{{{*/
+ pkgCache::VerIterator const &Ver)
+{
+ if (pkgCacheGenerator::ListParser::SameVersion(Hash, Ver) == false)
+ return false;
+ // status file has no (Download)Size, but all others are fair game
+ // status file is parsed last, so the first version we encounter is
+ // probably also the version we have downloaded
+ unsigned long long const Size = Section.FindULL("Size");
+ if (Size != 0 && Size != Ver->Size)
+ return false;
+ // available everywhere, but easier to check here than to include in VersionHash
+ unsigned char MultiArch = ParseMultiArch(false);
+ if (MultiArch != Ver->MultiArch)
+ return false;
+ // for all practical proposes (we can check): same version
+ return true;
+}
+ /*}}}*/
+#endif
+
+
+debDebFileParser::debDebFileParser(FileFd *File, std::string const &DebFile)
+ : debListParser(File, ""), DebFile(DebFile)
+{
+}
+
+bool debDebFileParser::UsePackage(pkgCache::PkgIterator &Pkg,
+ pkgCache::VerIterator &Ver)
+{
+ bool res = debListParser::UsePackage(Pkg, Ver);
+ // we use the full file path as a provides so that the file is found
+ // by its name
+ if(NewProvidesAllArch(Ver, DebFile, Ver.VerStr()) == false)
+ return false;
+ return res;
+}
+
+
+
projects / apt.git / blobdiff