fix two memory leaks reported by gcc

[apt.git] / methods / server.cc

diff --git a/methods/server.cc b/methods/server.cc
index bd01c3e980e2195a3403b1d5a0dbbcf56f5aeb84..934ec2abe6361c04192a31b0f26b7011d19b610f 100644 (file)
--- a/methods/server.cc
+++ b/methods/server.cc
@@ -54,7 +54,7 @@ ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File,
    Major = 0; 
    Minor = 0; 
    Result = 0; 
-   Size = 0; 
+   TotalFileSize = 0;
    JunkSize = 0;
    StartPos = 0;
    Encoding = Closes;
@@ -164,15 +164,22 @@ bool ServerState::HeaderLine(string Line)
         Encoding = Stream;
       HaveContent = true;
 
-      unsigned long long * SizePtr = &Size;
+      unsigned long long * DownloadSizePtr = &DownloadSize;
       if (Result == 416)
-        SizePtr = &JunkSize;
+        DownloadSizePtr = &JunkSize;
 
-      *SizePtr = strtoull(Val.c_str(), NULL, 10);
-      if (*SizePtr >= std::numeric_limits<unsigned long long>::max())
+      *DownloadSizePtr = strtoull(Val.c_str(), NULL, 10);
+      if (*DownloadSizePtr >= std::numeric_limits<unsigned long long>::max())
         return _error->Errno("HeaderLine", _("The HTTP server sent an invalid Content-Length header"));
-      else if (*SizePtr == 0)
+      else if (*DownloadSizePtr == 0)
         HaveContent = false;
+
+      // On partial content (206) the Content-Length less than the real
+      // size, so do not set it here but leave that to the Content-Range
+      // header instead
+      if(Result != 206 && TotalFileSize == 0)
+         TotalFileSize = DownloadSize;
+
       return true;
    }
 
@@ -187,12 +194,15 @@ bool ServerState::HeaderLine(string Line)
       HaveContent = true;
 
       // §14.16 says 'byte-range-resp-spec' should be a '*' in case of 416
-      if (Result == 416 && sscanf(Val.c_str(), "bytes */%llu",&Size) == 1)
+      if (Result == 416 && sscanf(Val.c_str(), "bytes */%llu",&TotalFileSize) == 1)
         ; // we got the expected filesize which is all we wanted
-      else if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&Size) != 2)
+      else if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&TotalFileSize) != 2)
         return _error->Error(_("The HTTP server sent an invalid Content-Range header"));
-      if ((unsigned long long)StartPos > Size)
+      if ((unsigned long long)StartPos > TotalFileSize)
         return _error->Error(_("This HTTP server has broken range support"));
+
+      // figure out what we will download
+      DownloadSize = TotalFileSize - StartPos;
       return true;
    }
 
@@ -319,13 +329,13 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
         {
            Hashes resultHashes(Queue->ExpectedHashes);
            FileFd file(Queue->DestFile, FileFd::ReadOnly);
-           Server->Size = file.FileSize();
+           Server->TotalFileSize = file.FileSize();
            Server->Date = file.ModificationTime();
            resultHashes.AddFD(file);
            HashStringList const hashList = resultHashes.GetHashStringList();
            partialHit = (Queue->ExpectedHashes == hashList);
         }
-        else if ((unsigned long long)SBuf.st_size == Server->Size)
+        else if ((unsigned long long)SBuf.st_size == Server->TotalFileSize)
            partialHit = true;
         if (partialHit == true)
         {
@@ -337,7 +347,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
               Server->RunData(&DevNull);
            }
            Server->HaveContent = false;
-           Server->StartPos = Server->Size;
+           Server->StartPos = Server->TotalFileSize;
            Server->Result = 200;
         }
         else if (unlink(Queue->DestFile.c_str()) == 0)
@@ -348,7 +358,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
       }
    }
 
-   /* We have a reply we dont handle. This should indicate a perm server
+   /* We have a reply we don't handle. This should indicate a perm server
       failure */
    if (Server->Result < 200 || Server->Result >= 300)
    {
@@ -363,8 +373,8 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
 
    // This is some sort of 2xx 'data follows' reply
    Res.LastModified = Server->Date;
-   Res.Size = Server->Size;
-
+   Res.Size = Server->TotalFileSize;
+   
    // Open the file
    delete File;
    File = new FileFd(Queue->DestFile,FileFd::WriteAny);
@@ -372,7 +382,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
       return ERROR_NOT_FROM_SERVER;
 
    FailFile = Queue->DestFile;
-   FailFile.c_str();   // Make sure we dont do a malloc in the signal handler
+   FailFile.c_str();   // Make sure we don't do a malloc in the signal handler
    FailFd = File->Fd();
    FailTime = Server->Date;
 
@@ -485,10 +495,8 @@ int ServerMethod::Loop()
       
       // Connect to the server
       if (Server == 0 || Server->Comp(Queue->Uri) == false)
-      {
-        delete Server;
         Server = CreateServerState(Queue->Uri);
-      }
+
       /* If the server has explicitly said this is the last connection
          then we pre-emptively shut down the pipeline and tear down 
         the connection. This will speed up HTTP/1.0 servers a tad
@@ -505,8 +513,7 @@ int ServerMethod::Loop()
       if (Server->Open() == false)
       {
         Fail(true);
-        delete Server;
-        Server = 0;
+        Server = nullptr;
         continue;
       }
 
@@ -738,9 +745,7 @@ int ServerMethod::Loop()
    return 0;
 }
                                                                        /*}}}*/
-                                                                       /*{{{*/
-unsigned long long
-ServerMethod::FindMaximumObjectSizeInQueue() const 
+unsigned long long ServerMethod::FindMaximumObjectSizeInQueue() const  /*{{{*/
 {
    unsigned long long MaxSizeInQueue = 0;
    for (FetchItem *I = Queue; I != 0 && I != QueueBack; I = I->Next)
@@ -748,3 +753,9 @@ ServerMethod::FindMaximumObjectSizeInQueue() const
    return MaxSizeInQueue;
 }
                                                                        /*}}}*/
+ServerMethod::ServerMethod(const char *Ver,unsigned long Flags) :      /*{{{*/
+   pkgAcqMethod(Ver, Flags), Server(nullptr), File(NULL), PipelineDepth(10),
+   AllowRedirect(false), Debug(false)
+{
+}
+                                                                       /*}}}*/