Fixed segfault in re-install/upgrade condition

[ntk/apt.git] / apt-pkg / algorithms.cc

diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc
index 967aba1..991a612 100644 (file)
--- a/apt-pkg/algorithms.cc
+++ b/apt-pkg/algorithms.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: algorithms.cc,v 1.16 1999/02/05 02:26:00 jgg Exp $
+// $Id: algorithms.cc,v 1.17 1999/04/28 22:48:45 jgg Exp $
 /* ######################################################################
 
    Algorithms - A set of misc algorithms
@@ -169,16 +169,37 @@ bool pkgApplyStatus(pkgDepCache &Cache)
       if (I->InstState == pkgCache::State::ReInstReq ||
          I->InstState == pkgCache::State::HoldReInstReq)
       {
-        Cache.MarkKeep(I);
+        if (I.CurrentVer().Downloadable() == true)
+           Cache.MarkKeep(I);
+        else
+        {
+           // Is this right? Will dpkg choke on an upgrade?
+           if (Cache[I].CandidateVerIter(Cache).Downloadable() == true)
+              Cache.MarkInstall(I);
+           else
+              return _error->Error("The package %s needs to be reinstalled, "
+                                   "but I can't find an archive for it.",I.Name());
+        }
+        
         continue;
       }
       
       switch (I->CurrentState)
       {
-        // This means installation failed somehow
+        /* This means installation failed somehow - it does not need to be
+           re-unpacked (probably) */
         case pkgCache::State::UnPacked:
         case pkgCache::State::HalfConfigured:
-        Cache.MarkKeep(I);
+        if (I.CurrentVer().Downloadable() == true || 
+            I.State() != pkgCache::PkgIterator::NeedsUnpack)
+           Cache.MarkKeep(I);
+        else
+        {
+           if (Cache[I].CandidateVerIter(Cache).Downloadable() == true)
+              Cache.MarkInstall(I);
+           else
+              Cache.MarkDelete(I);
+        }
         break;
 
         // This means removal failed