Adding upstream version 1.13.upstream/1.13

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 30 insertions, 15 deletions

diff --git a/decoder.h b/decoder.h
index f1a48cb..92da2b3 100644
--- a/decoder.h
+++ b/decoder.h
@@ -1,5 +1,5 @@
 /*  Lziprecover - Data recovery tool for lzipped files
-    Copyright (C) 2009, 2010, 2011 Antonio Diaz Diaz.
+    Copyright (C) 2009, 2010, 2011, 2012 Antonio Diaz Diaz.
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -29,8 +29,11 @@ class Range_decoder
 
   bool read_block();
 
+  Range_decoder( const Range_decoder & );	// declared as private
+  void operator=( const Range_decoder & );	// declared as private
+
 public:
-  Range_decoder( const int ifd )
+  explicit Range_decoder( const int ifd )
     :
     partial_member_pos( 0 ),
     buffer( new uint8_t[buffer_size] ),
@@ -43,12 +46,10 @@ public:
 
   ~Range_decoder() { delete[] buffer; }
 
-  bool code_is_zero() const throw() { return ( code == 0 ); }
+  bool code_is_zero() const { return ( code == 0 ); }
   bool finished() { return pos >= stream_pos && !read_block(); }
-  long long member_position() const throw()
-    { return partial_member_pos + pos; }
-  void reset_member_position() throw()
-    { partial_member_pos = -pos; }
+  long long member_position() const { return partial_member_pos + pos; }
+  void reset_member_position() { partial_member_pos = -pos; }
 
   uint8_t get_byte()
     {
@@ -56,6 +57,19 @@ public:
     return buffer[pos++];
     }
 
+  int read( uint8_t * const outbuf, const int size )
+    {
+    int rest = size;
+    while( rest > 0 && !finished() )
+      {
+      const int rd = std::min( rest, stream_pos - pos );
+      std::memcpy( outbuf + size - rest, buffer + pos, rd );
+      pos += rd;
+      rest -= rd;
+      }
+    return ( rest > 0 ) ? size - rest : size;
+    }
+
   void load()
     {
     code = 0;
@@ -176,7 +190,7 @@ class Literal_decoder
   {
   Bit_model bm_literal[1<<literal_context_bits][0x300];
 
-  int lstate( const int prev_byte ) const throw()
+  int lstate( const uint8_t prev_byte ) const
     { return ( prev_byte >> ( 8 - literal_context_bits ) ); }
 
 public:
@@ -205,18 +219,17 @@ class LZ_decoder
   const int member_version;
   Range_decoder & range_decoder;
 
-  long long stream_position() const throw()
-    { return partial_data_pos + stream_pos; }
+  long long stream_position() const { return partial_data_pos + stream_pos; }
   void flush_data();
   bool verify_trailer( const Pretty_print & pp ) const;
 
-  uint8_t get_prev_byte() const throw()
+  uint8_t get_prev_byte() const
     {
     const int i = ( ( pos > 0 ) ? pos : buffer_size ) - 1;
     return buffer[i];
     }
 
-  uint8_t get_byte( const int distance ) const throw()
+  uint8_t get_byte( const int distance ) const
     {
     int i = pos - distance - 1;
     if( i < 0 ) i += buffer_size;
@@ -246,6 +259,9 @@ class LZ_decoder
       }
     }
 
+  LZ_decoder( const LZ_decoder & );		// declared as private
+  void operator=( const LZ_decoder & );		// declared as private
+
 public:
   LZ_decoder( const File_header & header, Range_decoder & rdec, const int ofd,
               const long long oskip = 0, const long long oend = LLONG_MAX )
@@ -266,10 +282,9 @@ public:
 
   ~LZ_decoder() { delete[] buffer; }
 
-  uint32_t crc() const throw() { return crc_ ^ 0xFFFFFFFFU; }
+  uint32_t crc() const { return crc_ ^ 0xFFFFFFFFU; }
 
-  long long data_position() const throw()
-    { return partial_data_pos + pos; }
+  long long data_position() const { return partial_data_pos + pos; }
 
   int decode_member( const Pretty_print & pp );
   };