fix resource leak (thanks coverity)

[apt.git] / apt-pkg / acquire-worker.cc

diff --git a/apt-pkg/acquire-worker.cc b/apt-pkg/acquire-worker.cc
index ddd8e31018c5bcc028d4fe0c2183fc558876704d..44a84216ab2ade98467a0aee23254787fdc4fd86 100644 (file)
--- a/apt-pkg/acquire-worker.cc
+++ b/apt-pkg/acquire-worker.cc
@@ -12,6 +12,8 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
+#include <config.h>
+
 #include <apt-pkg/acquire-worker.h>
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>
@@ -19,18 +21,18 @@
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/strutl.h>
 
-#include <apti18n.h>
-
 #include <iostream>
 #include <sstream>
 #include <fstream>
-    
+
 #include <sys/stat.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <stdio.h>
 #include <errno.h>
+
+#include <apti18n.h>
                                                                        /*}}}*/
 
 using namespace std;
@@ -242,6 +244,21 @@ bool pkgAcquire::Worker::RunMessages()
  
             string NewURI = LookupTag(Message,"New-URI",URI.c_str());
             Itm->URI = NewURI;
+
+           ItemDone();
+
+           pkgAcquire::Item *Owner = Itm->Owner;
+           pkgAcquire::ItemDesc Desc = *Itm;
+
+           // Change the status so that it can be dequeued
+           Owner->Status = pkgAcquire::Item::StatIdle;
+           // Mark the item as done (taking care of all queues)
+           // and then put it in the main queue again
+           OwnerQ->ItemDone(Itm);
+           OwnerQ->Owner->Enqueue(Desc);
+
+           if (Log != 0)
+              Log->Done(Desc);
             break;
          }
    
@@ -256,9 +273,9 @@ bool pkgAcquire::Worker::RunMessages()
            
            CurrentItem = Itm;
            CurrentSize = 0;
-           TotalSize = atoi(LookupTag(Message,"Size","0").c_str());
-           ResumePoint = atoi(LookupTag(Message,"Resume-Point","0").c_str());
-           Itm->Owner->Start(Message,atoi(LookupTag(Message,"Size","0").c_str()));
+           TotalSize = strtoull(LookupTag(Message,"Size","0").c_str(), NULL, 10);
+           ResumePoint = strtoull(LookupTag(Message,"Resume-Point","0").c_str(), NULL, 10);
+           Itm->Owner->Start(Message,strtoull(LookupTag(Message,"Size","0").c_str(), NULL, 10));
 
            // Display update before completion
            if (Log != 0 && Log->MorePulses == true)
@@ -287,10 +304,18 @@ bool pkgAcquire::Worker::RunMessages()
               Log->Pulse(Owner->GetOwner());
            
            OwnerQ->ItemDone(Itm);
-           if (TotalSize != 0 &&
-               (unsigned)atoi(LookupTag(Message,"Size","0").c_str()) != TotalSize)
-              _error->Warning("Bizarre Error - File size is not what the server reported %s %lu",
-                              LookupTag(Message,"Size","0").c_str(),TotalSize);
+           unsigned long long const ServerSize = strtoull(LookupTag(Message,"Size","0").c_str(), NULL, 10);
+            bool isHit = StringToBool(LookupTag(Message,"IMS-Hit"),false) ||
+                         StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false);
+            // Using the https method the server might return 200, but the
+            // If-Modified-Since condition is not satsified, libcurl will
+            // discard the download. In this case, however, TotalSize will be
+            // set to the actual size of the file, while ServerSize will be set
+            // to 0. Therefore, if the item is marked as a hit and the
+            // downloaded size (ServerSize) is 0, we ignore TotalSize.
+           if (TotalSize != 0 && (!isHit || ServerSize != 0) && ServerSize != TotalSize)
+              _error->Warning("Size of file %s is not what the server reported %s %llu",
+                              Owner->DestFile.c_str(), LookupTag(Message,"Size","0").c_str(),TotalSize);
 
            // see if there is a hash to verify
            string RecivedHash;
@@ -309,15 +334,13 @@ bool pkgAcquire::Worker::RunMessages()
                       << endl << endl;
               }
            }
-           Owner->Done(Message,atoi(LookupTag(Message,"Size","0").c_str()),
-                       RecivedHash.c_str(), Config);
+           Owner->Done(Message, ServerSize, RecivedHash.c_str(), Config);
            ItemDone();
            
            // Log that we are done
            if (Log != 0)
            {
-              if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true ||
-                  StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true)
+              if (isHit)
               {
                  /* Hide 'hits' for local only sources - we also manage to
                     hide gets */
@@ -430,7 +453,9 @@ bool pkgAcquire::Worker::MediaChange(string Message)
             << Drive  << ":"     // drive
             << msg.str()         // l10n message
             << endl;
-      write(status_fd, status.str().c_str(), status.str().size());
+
+      std::string const dlstatus = status.str();
+      FileFd::Write(status_fd, dlstatus.c_str(), dlstatus.size());
    }
 
    if (Log == 0 || Log->MediaChange(LookupTag(Message,"Media"),
@@ -464,40 +489,19 @@ bool pkgAcquire::Worker::SendConfiguration()
 
    if (OutFd == -1)
       return false;
-   
-   string Message = "601 Configuration\n";
-   Message.reserve(2000);
 
-   /* Write out all of the configuration directives by walking the 
+   /* Write out all of the configuration directives by walking the
       configuration tree */
-   const Configuration::Item *Top = _config->Tree(0);
-   for (; Top != 0;)
-   {
-      if (Top->Value.empty() == false)
-      {
-        string Line = "Config-Item: " + QuoteString(Top->FullTag(),"=\"\n") + "=";
-        Line += QuoteString(Top->Value,"\n") + '\n';
-        Message += Line;
-      }
-      
-      if (Top->Child != 0)
-      {
-        Top = Top->Child;
-        continue;
-      }
-      
-      while (Top != 0 && Top->Next == 0)
-        Top = Top->Parent;
-      if (Top != 0)
-        Top = Top->Next;
-   }   
-   Message += '\n';
+   std::ostringstream Message;
+   Message << "601 Configuration\n";
+   _config->Dump(Message, NULL, "Config-Item: %F=%V\n", false);
+   Message << '\n';
 
    if (Debug == true)
-      clog << " -> " << Access << ':' << QuoteString(Message,"\n") << endl;
-   OutQueue += Message;
-   OutReady = true; 
-   
+      clog << " -> " << Access << ':' << QuoteString(Message.str(),"\n") << endl;
+   OutQueue += Message.str();
+   OutReady = true;
+
    return true;
 }
                                                                        /*}}}*/
@@ -535,10 +539,10 @@ bool pkgAcquire::Worker::OutFdReady()
       Res = write(OutFd,OutQueue.c_str(),OutQueue.length());
    }
    while (Res < 0 && errno == EINTR);
-   
+
    if (Res <= 0)
       return MethodFailure();
-   
+
    OutQueue.erase(0,Res);
    if (OutQueue.empty() == true)
       OutReady = false;