merged from lp:~donkult/apt/experimental

[apt.git] / apt-pkg / pkgcache.cc

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 6db025bd06fc312ab58739d288c5edeadc9e86f2..c854249e444d437fcc2341ba6c5849d40c022047 100644 (file)
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -20,6 +20,8 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
+#include<config.h>
+
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/policy.h>
 #include <apt-pkg/version.h>
@@ -29,13 +31,12 @@
 #include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/macros.h>
 
-#include <apti18n.h>
-    
 #include <string>
 #include <sys/stat.h>
 #include <unistd.h>
-
 #include <ctype.h>
+
+#include <apti18n.h>
                                                                        /*}}}*/
 
 using std::string;
@@ -84,6 +85,8 @@ pkgCache::Header::Header()
    memset(PkgHashTable,0,sizeof(PkgHashTable));
    memset(GrpHashTable,0,sizeof(GrpHashTable));
    memset(Pools,0,sizeof(Pools));
+
+   CacheFileSize = 0;
 }
                                                                        /*}}}*/
 // Cache::Header::CheckSizes - Check if the two headers have same *sz  /*{{{*/
@@ -155,6 +158,9 @@ bool pkgCache::ReMap(bool const &Errorchecks)
        HeaderP->CheckSizes(DefHeader) == false)
       return _error->Error(_("The package cache file is an incompatible version"));
 
+   if (Map.Size() < HeaderP->CacheFileSize)
+      return _error->Error(_("The package cache file is corrupted, it is too small"));
+
    // Locate our VS..
    if (HeaderP->VerSysName == 0 ||
        (VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0)
@@ -484,7 +490,7 @@ pkgCache::PkgIterator::CurVersion() const
    if they provide no new information (e.g. there is no newer version than candidate)
    If no version and/or section can be found "none" is used. */
 std::ostream& 
-operator<<(ostream& out, pkgCache::PkgIterator Pkg) 
+operator<<(std::ostream& out, pkgCache::PkgIterator Pkg) 
 {
    if (Pkg.end() == true)
       return out << "invalid package";
@@ -679,7 +685,7 @@ void pkgCache::DepIterator::GlobOr(DepIterator &Start,DepIterator &End)
 // ostream operator to handle string representation of a dependecy     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-std::ostream& operator<<(ostream& out, pkgCache::DepIterator D)
+std::ostream& operator<<(std::ostream& out, pkgCache::DepIterator D)
 {
    if (D.end() == true)
       return out << "invalid dependency";
@@ -749,9 +755,6 @@ bool pkgCache::VerIterator::Automatic() const
    return false;
 }
                                                                        /*}}}*/
-// VerIterator::Pseudo - deprecated no-op method                       /*{{{*/
-bool pkgCache::VerIterator::Pseudo() const { return false; }
-                                                                       /*}}}*/
 // VerIterator::NewestFile - Return the newest file version relation   /*{{{*/
 // ---------------------------------------------------------------------
 /* This looks at the version numbers associated with all of the sources
@@ -891,11 +894,22 @@ pkgCache::DescIterator pkgCache::VerIterator::TranslatedDescription() const
    {
       pkgCache::DescIterator Desc = DescriptionList();
       for (; Desc.end() == false; ++Desc)
-        if (*l == Desc.LanguageCode() ||
-            (*l == "en" && strcmp(Desc.LanguageCode(),"") == 0))
+        if (*l == Desc.LanguageCode())
            break;
       if (Desc.end() == true)
-        continue;
+      {
+        if (*l == "en")
+        {
+           Desc = DescriptionList();
+           for (; Desc.end() == false; ++Desc)
+              if (strcmp(Desc.LanguageCode(), "") == 0)
+                 break;
+           if (Desc.end() == true)
+              continue;
+        }
+        else
+           continue;
+      }
       return Desc;
    }
    for (pkgCache::DescIterator Desc = DescriptionList();