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 074abea6d0ae76f5ccc4ff37ae0ede852cad91ba..192a281db9d46f5d75e9fd0e70d22ad4b3783751 100644 (file)
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -10,37 +10,58 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include <config.h>
+

 #include <apt-pkg/deblistparser.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.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/strutl.h>

+#include <apt-pkg/fileutl.h>

 #include <apt-pkg/crc-16.h>
 #include <apt-pkg/md5.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>
 #include <ctype.h>

-
-#include <system.h>

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

-static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Important},
-                       {"required",pkgCache::State::Required},
-                       {"standard",pkgCache::State::Standard},
-                       {"optional",pkgCache::State::Optional},
-                      {"extra",pkgCache::State::Extra},
-                       {}};
+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(FileFd *File) : Tags(File)
-{
-   Arch = _config->Find("APT::architecture");
+/* 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::UniqFindTagWrite - Find the tag and write a unq string  /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // ListParser::UniqFindTagWrite - Find the tag and write a unq string  /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-unsigned long debListParser::UniqFindTagWrite(const char *Tag)
+map_stringitem_t debListParser::UniqFindTagWrite(const char *Tag)

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


@@ -52,14 +73,27 @@ unsigned long debListParser::UniqFindTagWrite(const char *Tag)
 // ListParser::Package - Return the package name                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the name of the package this section describes */
 // ListParser::Package - Return the package name                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the name of the package this section describes */

-string debListParser::Package()
-{
-   string Result = Section.FindS("Package");
-   if (Result.empty() == true)
+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;
 }
                                                                        /*}}}*/
       _error->Error("Encountered a section with no Package: header");
    return Result;
 }
                                                                        /*}}}*/

+// ListParser::Architecture - Return the package arch                  /*{{{*/
+// ---------------------------------------------------------------------
+/* This will return the Architecture of the package this section describes */
+string debListParser::Architecture() {
+   return Section.FindS("Architecture");
+}
+                                                                       /*}}}*/
+// ListParser::ArchitectureAll                                         /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool debListParser::ArchitectureAll() {
+   return Section.FindS("Architecture") == "all";
+}
+                                                                       /*}}}*/

 // ListParser::Version - Return the version string                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the string describing the version in debian form,
 // ListParser::Version - Return the version string                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the string describing the version in debian form,


@@ -70,20 +104,53 @@ string debListParser::Version()
    return Section.FindS("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
    Ver->Section = UniqFindTagWrite("Section");
 {
    // Parse the section
    Ver->Section = UniqFindTagWrite("Section");

-   Ver->Arch = UniqFindTagWrite("Architecture");
-   
+   Ver->MultiArch = ParseMultiArch(true);

    // Archive Size
    // Archive Size

-   Ver->Size = (unsigned)Section.FindI("Size");
-   
+   Ver->Size = Section.FindULL("Size");

    // Unpacked Size (in K)
    // Unpacked Size (in K)

-   Ver->InstalledSize = (unsigned)Section.FindI("Installed-Size");
+   Ver->InstalledSize = Section.FindULL("Installed-Size");

    Ver->InstalledSize *= 1024;
 
    // Priority
    Ver->InstalledSize *= 1024;
 
    // Priority


@@ -109,6 +176,8 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
       return false;
    if (ParseDepends(Ver,"Replaces",pkgCache::Dep::Replaces) == false)
       return 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)
 
    // Obsolete.
    if (ParseDepends(Ver,"Optional",pkgCache::Dep::Suggests) == false)


@@ -125,25 +194,31 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
 /* 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 */
 /* This is to return the string describing the package in debian
    form. If this returns the blank string then the entry is assumed to
    only describe package properties */

-string debListParser::Description()
+string debListParser::Description(std::string const &lang)

 {
 {

-   if (DescriptionLanguage().empty())
+   if (lang.empty())

       return Section.FindS("Description");
    else
       return Section.FindS("Description");
    else

-      return Section.FindS(("Description-" + pkgIndexFile::LanguageCode()).c_str());
+      return Section.FindS(string("Description-").append(lang).c_str());

 }
 }

-                                                                        /*}}}*/
-// ListParser::DescriptionLanguage - Return the description lang string        /*{{{*/
-// ---------------------------------------------------------------------
-/* This is to return the string describing the language of
-   description. If this returns the blank string then the entry is
-   assumed to describe original description. */
-string debListParser::DescriptionLanguage()
+                                                                       /*}}}*/
+// ListParser::AvailableDescriptionLanguages                           /*{{{*/
+std::vector<std::string> debListParser::AvailableDescriptionLanguages()

 {
 {

-   return Section.FindS("Description").empty() ? pkgIndexFile::LanguageCode() : "";
+   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 - Return the description_md5 MD5SumValue    /*{{{*/
+                                                                       /*}}}*/
+// 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
 // ---------------------------------------------------------------------
 /* 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


@@ -151,34 +226,55 @@ string debListParser::DescriptionLanguage()
  */
 MD5SumValue debListParser::Description_md5()
 {
  */
 MD5SumValue debListParser::Description_md5()
 {

-   string value = Section.FindS("Description-md5");
-
-   if (value.empty()) 
+   string const value = Section.FindS("Description-md5");
+   if (value.empty() == true)

    {
    {

+      std::string const desc = Description("") + "\n";
+      if (desc == "\n")
+        return MD5SumValue();
+

       MD5Summation md5;
       MD5Summation md5;

-      md5.Add((Description() + "\n").c_str());
+      md5.Add(desc.c_str());

       return md5.Result();
       return md5.Result();

-   } else
-      return MD5SumValue(value);
+   }
+   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)
-      Pkg->Section = UniqFindTagWrite("Section");
-   if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
-      return false;
+   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 (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
       return false;
 
    if (strcmp(Pkg.Name(),"apt") == 0)
    if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
       return false;
 
    if (strcmp(Pkg.Name(),"apt") == 0)

-      Pkg->Flags |= pkgCache::Flag::Important;
-   
+   {
+      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;


@@ -199,7 +295,7 @@ unsigned short debListParser::VersionHash()
                             "Replaces",0};
    unsigned long Result = INIT_FCS;
    char S[1024];
                             "Replaces",0};
    unsigned long Result = INIT_FCS;
    char S[1024];

-   for (const char **I = Sections; *I != 0; I++)
+   for (const char * const *I = Sections; *I != 0; ++I)

    {
       const char *Start;
       const char *End;
    {
       const char *Start;
       const char *End;


@@ -209,18 +305,18 @@ unsigned short debListParser::VersionHash()
       /* 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 < -> <= */
       /* 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++)
+      char *J = 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++ = '=';
+        if (isspace(*Start) != 0)
+           continue;
+        *J++ = tolower_ascii(*Start);
+
+        if ((*Start == '<' || *Start == '>') && Start[1] != *Start && Start[1] != '=')
+           *J++ = '=';

       }
 
       }
 

-      Result = AddCRC16(Result,S,I - S);
+      Result = AddCRC16(Result,S,J - S);

    }
    
    return Result;
    }
    
    return Result;


@@ -239,14 +335,20 @@ unsigned short debListParser::VersionHash()
    Some of the above are obsolete (I think?) flag = hold-* and 
    status = post-inst-failed, removal-failed at least.
  */
    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++);


@@ -259,7 +361,7 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
                           {"hold",pkgCache::State::Hold},
                           {"deinstall",pkgCache::State::DeInstall},
                           {"purge",pkgCache::State::Purge},
                           {"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");
 
    if (GrabWord(string(Start,I-Start),WantList,Pkg->SelectedState) == false)
       return _error->Error("Malformed 1st word in the Status line");
 


@@ -275,7 +377,7 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
                           {"reinstreq",pkgCache::State::ReInstReq},
                           {"hold",pkgCache::State::HoldInst},
                           {"hold-reinstreq",pkgCache::State::HoldReInstReq},
                           {"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");
 
    if (GrabWord(string(Start,I-Start),FlagList,Pkg->InstState) == false)
       return _error->Error("Malformed 2nd word in the Status line");
 


@@ -293,9 +395,11 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
                             {"installed",pkgCache::State::Installed},
                             {"half-installed",pkgCache::State::HalfInstalled},
                             {"config-files",pkgCache::State::ConfigFiles},
                             {"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},
                             {"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");
 
    if (GrabWord(string(Start,I-Start),StatusList,Pkg->CurrentState) == false)
       return _error->Error("Malformed 3rd word in the Status line");
 


@@ -372,23 +476,36 @@ const char *debListParser::ConvertRelation(const char *I,unsigned int &Op)
    }
    return I;
 }
    }
    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, bool ParseArchFlags)
+                                       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 == ')')


@@ -399,7 +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++);
    


@@ -415,9 +543,9 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
       // 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;
       
       // Skip trailing whitespace
       const char *End = I;


@@ -437,53 +565,129 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
 
    if (ParseArchFlags == true)
    {
 
    if (ParseArchFlags == true)
    {

-      string arch = _config->Find("APT::Architecture");
+      APT::CacheFilter::PackageArchitectureMatchesSpecification matchesArch(arch, false);

 
       // Parse an architecture
       if (I != Stop && *I == '[')
       {
 
       // Parse an architecture
       if (I != Stop && *I == '[')
       {

+        ++I;

         // malformed
         // malformed

-         I++;
-         if (I == Stop)
-           return 0; 
-        
-         const char *End = I;
-         bool Found = false;
-        bool NegArch = false;
-         while (I != Stop) 
+        if (unlikely(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) 
+           // look for whitespace or ending ']'
+           for (;End != Stop && !isspace(*End) && *End != ']'; ++End);
+
+           if (unlikely(End == Stop))

               return 0;
 
            if (*I == '!')
               return 0;
 
            if (*I == '!')

-            {
+           {

               NegArch = true;
               NegArch = true;

-              I++;
-            }
+              ++I;
+           }

 
 

-           if (stringcmp(arch,I,End) == 0)
+           std::string arch(I, End);
+           if (arch.empty() == false && matchesArch(arch.c_str()) == true)
+           {

               Found = 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;
            }
            if (*End++ == ']') {
               I = End;
               break;
            }

-           
+

            I = End;
            for (;I != Stop && isspace(*I) != 0; I++);
            I = End;
            for (;I != Stop && isspace(*I) != 0; I++);

-         }
+        }

 
 

-        if (NegArch)
+        if (NegArch == true)

            Found = !Found;
            Found = !Found;

-        
-         if (Found == false)
+
+        if (Found == false)

            Package = ""; /* not for this arch */
       }
            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++);
    }
       // Skip whitespace
       for (;I != Stop && isspace(*I) != 0; I++);
    }


@@ -505,26 +709,64 @@ 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;
+
+   string const pkgArch = Ver.Arch();

 
    while (1)
    {
 
    while (1)
    {

-      Start = ParseDepends(Start,Stop,Package,Version,Op);
+      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);

-      
-      if (NewDepends(Ver,Package,Version,Op,Type) == false)
-        return false;
+      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;
    }
       if (Start == Stop)
         break;
    }


@@ -534,33 +776,57 @@ 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;
-
-   while (1)
+   if (Section.Find("Provides",Start,Stop) == true)

    {
    {

-      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 (NewProvides(Ver,Package,Version) == false)
-           return false;
+      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 (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;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/


@@ -582,7 +848,7 @@ bool debListParser::GrabWord(string Word,WordList *List,unsigned char &Out)
                                                                        /*}}}*/
 // 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();
 bool debListParser::Step()
 {
    iOffset = Tags.Offset();


@@ -591,16 +857,25 @@ bool debListParser::Step()
       /* 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 */
       /* 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;
+      string const Architecture = Section.FindS("Architecture");

 
 

-      if (stringcmp(Arch,Start,Stop) == 0)
-        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 (stringcmp(Start,Stop,"all") == 0)
-        return true;
+        if (Architecture == "all" && Arch == _config->Find("APT::Architecture"))
+           return true;
+      }

 
       iOffset = Tags.Offset();
    }   
 
       iOffset = Tags.Offset();
    }   


@@ -610,39 +885,36 @@ bool debListParser::Step()
 // ListParser::LoadReleaseInfo - Load the release information          /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // ListParser::LoadReleaseInfo - Load the release information          /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI,
+bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,

                                    FileFd &File, string component)
 {
                                    FileFd &File, string component)
 {

-   pkgTagFile Tags(&File, File.Size() + 256); // XXX
-   pkgTagSection Section;
-   if (Tags.Step(Section) == false)
-      return false;
-
-   //mvo: I don't think we need to fill that in (it's unused since apt-0.6)
-   //FileI->Architecture = WriteUniqString(Arch);
-   

    // apt-secure does no longer download individual (per-section) Release
    // file. to provide Component pinning we use the section name now
    // apt-secure does no longer download individual (per-section) Release
    // file. to provide Component pinning we use the section name now

-   FileI->Component = WriteUniqString(component);
+   map_stringitem_t const storage = WriteUniqString(component);
+   FileI->Component = storage;

 
 

-   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");
+   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();
 }
 
    return !_error->PendingError();
 }


@@ -659,3 +931,44 @@ unsigned char debListParser::GetPrio(string Str)
    return Out;
 }
                                                                        /*}}}*/
    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;
+}
+
+
+