Merge branch 'debian/sid' into debian/experimental

[apt.git] / apt-pkg / deb / deblistparser.cc

diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 5fbb43a9f357e06c6e2ba2d91b7a368d34438882..192a281db9d46f5d75e9fd0e70d22ad4b3783751 100644 (file)
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: deblistparser.cc,v 1.4 1998/07/07 04:17:16 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.
 /* ######################################################################
    
    Package Cache Generator - Generator for the cache structure.


@@ -10,108 +10,88 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // 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                             /*{{{*/
 // ---------------------------------------------------------------------
 // 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)
 {
    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;
 }
                                                                        /*}}}*/
    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);
-}
-                                                                       /*}}}*/
-// 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;
+/* This will return the Architecture of the package this section describes */
+string debListParser::Architecture() {
+   return Section.FindS("Architecture");

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-// ListParser::Package - Return the package name                       /*{{{*/
+// ListParser::ArchitectureAll                                         /*{{{*/

 // ---------------------------------------------------------------------
 // ---------------------------------------------------------------------

-/* 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                     /*{{{*/
 }
                                                                        /*}}}*/
 // ListParser::Version - Return the version string                     /*{{{*/


@@ -121,45 +101,70 @@ string debListParser::Package()
    entry is assumed to only describe package properties */
 string debListParser::Version()
 {
    entry is assumed to only describe package properties */
 string debListParser::Version()
 {

-   return FindTag("Version");
+   return Section.FindS("Version");
+}
+                                                                       /*}}}*/
+unsigned char debListParser::ParseMultiArch(bool const showErrors)     /*{{{*/
+{
+   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              /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // ListParser::NewVersion - Fill in the version structure              /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool debListParser::NewVersion(pkgCache::VerIterator Ver)
+bool debListParser::NewVersion(pkgCache::VerIterator &Ver)

 {
    // Parse the section
 {
    // 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
    // Archive Size

-   if ((Ver->Size = (unsigned)FindTagI("Size")) == 0)
-      return _error->Error("Unparsable Size field");
-   
+   Ver->Size = Section.FindULL("Size");

    // Unpacked Size (in K)
    // 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)
    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 (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,"Depends",pkgCache::Dep::Depends) == false)
       return false;

-   if (ParseDepends(Ver,"PreDepends",pkgCache::Dep::PreDepends) == false)
+   if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)

       return false;
    if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false)
       return false;
       return false;
    if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false)
       return false;


@@ -167,55 +172,183 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
       return false;
    if (ParseDepends(Ver,"Conflicts",pkgCache::Dep::Conflicts) == false)
       return false;
       return false;
    if (ParseDepends(Ver,"Conflicts",pkgCache::Dep::Conflicts) == false)
       return false;

-   if (ParseDepends(Ver,"Replaces",pkgCache::Dep::Depends) == 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;
 
       return false;
 

+   // Obsolete.
+   if (ParseDepends(Ver,"Optional",pkgCache::Dep::Suggests) == false)
+      return false;
+   

    if (ParseProvides(Ver) == false)
       return false;
    
    return true;
 }
                                                                        /*}}}*/
    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 */
 // 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;
         return false;

-   if (HandleFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
-      return false;
-   if (HandleFlag("Immediate-Configure",Pkg->Flags,pkgCache::Flag::ImmediateConf) == false)
+   if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)

       return 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;
 }
                                                                        /*}}}*/
    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
 // 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.
  */
             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;
 {
    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++);
    // Isolate the first word
    const char *I = Start;
    for(; I < Stop && *I != ' '; I++);


@@ -227,9 +360,9 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
                           {"install",pkgCache::State::Install},
                           {"hold",pkgCache::State::Hold},
                           {"deinstall",pkgCache::State::DeInstall},
                           {"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},
+                          {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 1st word in the Status line");
 
    // Isloate the next word


@@ -243,9 +376,9 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
    WordList FlagList[] = {{"ok",pkgCache::State::Ok},
                           {"reinstreq",pkgCache::State::ReInstReq},
                           {"hold",pkgCache::State::HoldInst},
    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},
+                          {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 2nd word in the Status line");
 
    // Isloate the last word


@@ -260,13 +393,14 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
                             {"unpacked",pkgCache::State::UnPacked},
                             {"half-configured",pkgCache::State::HalfConfigured},
                             {"installed",pkgCache::State::Installed},
                             {"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},
                             {"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},
                             {"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},
+                            {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
       return _error->Error("Malformed 3rd word in the Status line");
 
    /* A Status line marks the package as indicating the current


@@ -284,22 +418,94 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
    
    return true;
 }
    
    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. */
                                                                        /*}}}*/
 // 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,
 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,
+                                       bool const &ParseRestrictionsList)

 {
    // Strip off leading space
 {
    // Strip off leading space

-   for (;Start != Stop && isspace(*Start) != 0; Start++);
+   for (;Start != Stop && isspace(*Start) != 0; ++Start);

    
    // Parse off the package name
    const char *I = Start;
    for (;I != Stop && isspace(*I) == 0 && *I != '(' && *I != ')' &&
    
    // Parse off the package name
    const char *I = Start;
    for (;I != Stop && isspace(*I) == 0 && *I != '(' && *I != ')' &&

-       *I != ',' && *I != '|'; I++);
+       *I != ',' && *I != '|' && *I != '[' && *I != ']' &&
+       *I != '<' && *I != '>'; ++I);

    
    // Malformed, no '('
    if (I != Stop && *I == ')')
    
    // Malformed, no '('
    if (I != Stop && *I == ')')


@@ -310,7 +516,18 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
    
    // Stash the package name
    Package.assign(Start,I - Start);
    
    // 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++);
    
    // Skip white space to the '('
    for (;I != Stop && isspace(*I) != 0 ; I++);
    


@@ -321,79 +538,160 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
       for (I++; I != Stop && isspace(*I) != 0 ; I++);
       if (I + 3 >= Stop)
         return 0;
       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++);
       Start = I;
       
       // Skip whitespace
       for (;I != Stop && isspace(*I) != 0; I++);
       Start = I;

-      for (;I != Stop && *I != ')'; I++);
-      if (I == Stop || Start == I)
-        return 0;     
+      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 = string(Start,I-Start);
+      Ver.assign(Start,End-Start);

       I++;
    }
    else
    {
       I++;
    }
    else
    {

-      Ver = string();
+      Ver.clear();

       Op = pkgCache::Dep::NoOp;
    }
    
    // Skip whitespace
    for (;I != Stop && isspace(*I) != 0; I++);
       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 == '|')
       Op |= pkgCache::Dep::Or;
    


@@ -411,25 +709,66 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
 // ---------------------------------------------------------------------
 /* This is the higher level depends parser. It takes a tag and generates
    a complete depends tree for the given version. */
 // ---------------------------------------------------------------------
 /* 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,
+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;
                                 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 ((Start = ParseDepends(Start,Stop,Package,Version,Op)) != Stop)
+   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);
       if (Start == 0)
         return _error->Error("Problem parsing dependency %s",Tag);

+      size_t const found = Package.rfind(':');

 
 

-      if (NewDepends(Ver,Package,Version,Op,Type) == false)
-        return false;
+      // 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;
 }
    }
    return true;
 }


@@ -437,42 +776,66 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver,
 // ListParser::ParseProvides - Parse the provides list                 /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // ListParser::ParseProvides - Parse the provides list                 /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool debListParser::ParseProvides(pkgCache::VerIterator Ver)
+bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)

 {
    const char *Start;
    const char *Stop;
 {
    const char *Start;
    const char *Stop;

-   if (Section.Find("Provides",Start,Stop) == false)
-      return true;
-   
-   string Package;
-   string Version;
-   unsigned int Op;
+   if (Section.Find("Provides",Start,Stop) == true)
+   {
+      string Package;
+      string Version;
+      string const Arch = Ver.Arch();
+      unsigned int Op;

 
 

-   while (1)
+      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)

    {
    {

-      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");
+      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());

 
 

-      if (NewProvides(Ver,Package,Version) == false)
+   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 false;

-
-      if (Start == Stop)
-        break;

    }
    }

-   

    return true;
 }
                                                                        /*}}}*/
 // ListParser::GrabWord - Matches a word and returns                   /*{{{*/
 // ---------------------------------------------------------------------
 /* Looks for a word in a list of words - for ParseStatus */
    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)
       {
    {
       if (strcasecmp(Word.c_str(),List[C].Str) == 0)
       {


@@ -485,29 +848,127 @@ bool debListParser::GrabWord(string Word,WordList *List,int Count,
                                                                        /*}}}*/
 // ListParser::Step - Move to the next section in the file             /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // 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)
 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;
 }
                                                                        /*}}}*/
 
       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;
+}
+
+
+