* apt-pkg/cdrom.{cc,h}:

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

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 38e4e904ed41133ae2feb07b9bdd94fad8584354..2b8cb6b86814f7ec3328ac31a28c3fbd586edab3 100644 (file)
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -84,6 +84,8 @@ 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 +157,9 @@ 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)
@@ -749,9 +754,6 @@ 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