test if TMPDIR is accessible before using

[apt.git] / methods / http.cc

diff --git a/methods/http.cc b/methods/http.cc
index f2a4a4db631add976bcbf36d329a57d45d3304a5..a5de13511bf3ced8f7920474ab2fd5f45393602e 100644 (file)
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -64,7 +64,8 @@ const unsigned int CircleBuf::BW_HZ=10;
 // CircleBuf::CircleBuf - Circular input buffer                                /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-CircleBuf::CircleBuf(unsigned long long Size) : Size(Size), Hash(0)
+CircleBuf::CircleBuf(unsigned long long Size) 
+   : Size(Size), Hash(0), TotalWriten(0)
 {
    Buf = new unsigned char[Size];
    Reset();
@@ -80,6 +81,7 @@ void CircleBuf::Reset()
    InP = 0;
    OutP = 0;
    StrPos = 0;
+   TotalWriten = 0;
    MaxGet = (unsigned long long)-1;
    OutQueue = string();
    if (Hash != 0)
@@ -217,6 +219,8 @@ bool CircleBuf::Write(int Fd)
         
         return false;
       }
+
+      TotalWriten += Res;
       
       if (Hash != 0)
         Hash->Add(Buf + (OutP%Size),Res);
@@ -651,6 +655,13 @@ bool HttpServerState::Go(bool ToFile, FileFd * const File)
         return _error->Errno("write",_("Error writing to output file"));
    }
 
+   if (MaximumSize > 0 && File && File->Tell() > MaximumSize)
+   {
+      Owner->SetFailReason("MaximumSizeExceeded");
+      return _error->Error("Writing more data than expected (%llu > %llu)",
+                           File->Tell(), MaximumSize);
+   }
+
    // Handle commands from APT
    if (FD_ISSET(STDIN_FILENO,&rfds))
    {
@@ -759,6 +770,8 @@ bool HttpMethod::Configuration(string Message)
    if (ServerMethod::Configuration(Message) == false)
       return false;
 
+   DropPrivsOrDie();
+
    AllowRedirect = _config->FindB("Acquire::http::AllowRedirect",true);
    PipelineDepth = _config->FindI("Acquire::http::Pipeline-Depth",
                                  PipelineDepth);