From 41b4dee4acaadda869840f7a94c58fd5b7d42017 Mon Sep 17 00:00:00 2001
From: David Kalnischkies <kalnischkies@gmail.com>
Date: Thu, 30 Jun 2011 14:05:03 +0200
Subject: * apt-pkg/pkgcachegen.cc:   - fallback to memory if file is not
 writeable even if access()     told us the opposite before (e.g. in fakeroot
 1.16) (Closes: #630591)

---
 apt-pkg/pkgcachegen.cc | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

(limited to 'apt-pkg')

diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc
index 9820fde81..8f9737e26 100644
--- a/apt-pkg/pkgcachegen.cc
+++ b/apt-pkg/pkgcachegen.cc
@@ -1169,16 +1169,32 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress
    SPtr<DynamicMMap> Map;
    if (Writeable == true && CacheFile.empty() == false)
    {
+      _error->PushToStack();
       unlink(CacheFile.c_str());
       CacheF = new FileFd(CacheFile,FileFd::WriteAtomic);
       fchmod(CacheF->Fd(),0644);
       Map = CreateDynamicMMap(CacheF, MMap::Public);
       if (_error->PendingError() == true)
-	 return false;
-      if (Debug == true)
+      {
+	 delete CacheF.UnGuard();
+	 delete Map.UnGuard();
+	 if (Debug == true)
+	    std::clog << "Open filebased MMap FAILED" << std::endl;
+	 Writeable = false;
+	 if (AllowMem == false)
+	 {
+	    _error->MergeWithStack();
+	    return false;
+	 }
+	 _error->RevertToStack();
+      }
+      else if (Debug == true)
+      {
+	 _error->MergeWithStack();
 	 std::clog << "Open filebased MMap" << std::endl;
+      }
    }
-   else
+   if (Writeable == false || CacheFile.empty() == true)
    {
       // Just build it in memory..
       Map = CreateDynamicMMap(NULL);
-- 
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