From c11caab8aa7f1e296694e2eaa4477d299adcd1e6 Mon Sep 17 00:00:00 2001
From: Jochen Dolze <vdr@dolze.de>
Date: Tue, 6 Oct 2009 00:36:26 +0200
Subject: Fixed TS packet processing (buffer overflows) Added packet injection

---
 tools.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'tools.cpp')

diff --git a/tools.cpp b/tools.cpp
index 6828216..6c4edc5 100644
--- a/tools.cpp
+++ b/tools.cpp
@@ -26,6 +26,36 @@ cMarkAdPaketQueue::~cMarkAdPaketQueue()
     if (buffer) free(buffer);
 }
 
+bool cMarkAdPaketQueue::Inject(uchar *Data, int Size)
+{
+    if (!buffer) return false;
+    if (outptr>Size)
+    {
+        uchar temp[Size+1];
+        memcpy(temp,Data,Size);
+        outptr-=Size;
+        memcpy(&buffer[outptr],temp,Size);
+        pktinfo.pkthdr=-1;
+    }
+    else
+    {
+        int oldSize=Length();
+        uchar tempold[oldSize+1];
+        memcpy(tempold,&buffer[outptr],oldSize);
+
+        uchar temp[Size+1];
+        memcpy(temp,Data,Size);
+
+        memcpy(buffer,temp,Size);
+        memcpy(buffer+Size,tempold,oldSize);
+
+        inptr=Size+oldSize;
+        outptr=0;
+        pktinfo.pkthdr=-1;
+    }
+    return true;
+}
+
 bool cMarkAdPaketQueue::Put(uchar *Data, int Size)
 {
     if (!buffer) return false;
-- 
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