1 files changed, 8 insertions, 1 deletions
diff --git a/decoder.h b/decoder.h
index 3b5dc7d..f1a48cb 100644
--- a/decoder.h
+++ b/decoder.h
@@ -192,6 +192,8 @@ public:
 
 class LZ_decoder
   {
+  const long long outskip;
+  const long long outend;
   long long partial_data_pos;
   const int dictionary_size;
   const int buffer_size;
@@ -203,6 +205,8 @@ class LZ_decoder
   const int member_version;
   Range_decoder & range_decoder;
 
+  long long stream_position() const throw()
+    { return partial_data_pos + stream_pos; }
   void flush_data();
   bool verify_trailer( const Pretty_print & pp ) const;
 
@@ -243,8 +247,11 @@ class LZ_decoder
     }
 
 public:
-  LZ_decoder( const File_header & header, Range_decoder & rdec, const int ofd )
+  LZ_decoder( const File_header & header, Range_decoder & rdec, const int ofd,
+              const long long oskip = 0, const long long oend = LLONG_MAX )
     :
+    outskip( oskip ),
+    outend( oend ),
     partial_data_pos( 0 ),
     dictionary_size( header.dictionary_size() ),
     buffer_size( std::max( 65536, dictionary_size ) ),