Merging upstream version 0.21.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tarlz.h

@@ -15,6 +15,11 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include <climits>
+#include <cstring>
+#include <string>
+#include <vector>
+#include <stdint.h>
 #include <sys/types.h>
 
 #define max_file_size ( LLONG_MAX - header_size )
@@ -41,7 +46,7 @@ enum Typeflag {
 const uint8_t ustar_magic[magic_l] =
   { 0x75, 0x73, 0x74, 0x61, 0x72, 0 };			// "ustar\0"
 
-inline bool verify_ustar_magic( const uint8_t * const header )
+inline bool verify_ustar_magic( const Tar_header header )
   { return std::memcmp( header + magic_o, ustar_magic, magic_l ) == 0; }
 
 inline void init_tar_header( Tar_header header )    // set magic and version
@@ -106,7 +111,10 @@ public:
       }
     return true;
     }
-  char * operator()() const { return p; }
+  char * operator()() { return p; }
+  const char * operator()() const { return p; }
+  uint8_t * u8() { return (uint8_t *)p; }
+  const uint8_t * u8() const { return (const uint8_t *)p; }
   unsigned long size() const { return size_; }
   };
 
@@ -222,6 +230,25 @@ public:
   };
 
 
+struct Lzma_options
+  {
+  int dictionary_size;		// 4 KiB .. 512 MiB
+  int match_len_limit;		// 5 .. 273
+  };
+const Lzma_options option_mapping[] =
+  {
+  {   65535,  16 },		// -0
+  { 1 << 20,   5 },		// -1
+  { 3 << 19,   6 },		// -2
+  { 1 << 21,   8 },		// -3
+  { 3 << 20,  12 },		// -4
+  { 1 << 22,  20 },		// -5
+  { 1 << 23,  36 },		// -6
+  { 1 << 24,  68 },		// -7
+  { 3 << 23, 132 },		// -8
+  { 1 << 25, 273 } };		// -9
+
+
 enum {
   min_dictionary_bits = 12,
   min_dictionary_size = 1 << min_dictionary_bits,
@@ -324,39 +351,44 @@ struct Lzip_trailer
   };
 
 
-enum Program_mode { m_none, m_append, m_concatenate, m_create, m_delete,
-                    m_diff, m_extract, m_list };
+enum Program_mode { m_none, m_append, m_compress, m_concatenate, m_create,
+                    m_delete, m_diff, m_extract, m_list };
 enum Solidity { no_solid, bsolid, dsolid, asolid, solid };
 class Arg_parser;
 struct Cl_options		// command line options
   {
   const Arg_parser & parser;
   std::string archive_name;
+  std::string output_filename;
   long long mtime;
   Program_mode program_mode;
   Solidity solidity;
   int data_size;
   int debug_level;
-  int filenames;
   int level;			// compression level, < 0 means uncompressed
+  int num_files;
   int num_workers;		// start this many worker threads
   int out_slots;
   int owner;
   int group;
   bool dereference;
+  bool filenames_given;
   bool ignore_ids;
   bool keep_damaged;
   bool missing_crc;
   bool permissive;
   bool preserve_permissions;
+  bool warn_newer;
 
   Cl_options( const Arg_parser & ap )
     : parser( ap ), mtime( -1 ), program_mode( m_none ), solidity( bsolid ),
-      data_size( 0 ), debug_level( 0 ), filenames( 0 ), level( 6 ),
+      data_size( 0 ), debug_level( 0 ), level( 6 ), num_files( 0 ),
       num_workers( -1 ), out_slots( 64 ), owner( -1 ), group( -1 ),
-      dereference( false ), ignore_ids( false ), keep_damaged( false ),
-      missing_crc( false ), permissive( false ), preserve_permissions( false )
-      {}
+      dereference( false ), filenames_given( false ), ignore_ids( false ),
+      keep_damaged( false ), missing_crc( false ), permissive( false ),
+      preserve_permissions( false ), warn_newer( false ) {}
+
+  bool to_stdout() const { return output_filename == "-"; }
   };
 
 
@@ -404,6 +436,9 @@ bool check_skip_filename( const Cl_options & cl_opts,
 mode_t get_umask();
 bool make_path( const std::string & name );
 
+// defined in compress.cc
+int compress( Cl_options & cl_opts );
+
 // defined in create.cc
 bool copy_file( const int infd, const int outfd, const long long max_size = -1 );
 bool writeblock_wrapper( const int outfd, const uint8_t * const buffer,
@@ -413,13 +448,14 @@ const char * remove_leading_dotslash( const char * const filename,
                                       const bool dotdot = false );
 bool fill_headers( const char * const filename, Extended & extended,
                    Tar_header header, long long & file_size, const int flag );
-bool block_is_full( const Extended & extended,
+bool block_is_full( const long long extended_size,
                     const unsigned long long file_size,
+                    const unsigned long long target_size,
                     unsigned long long & partial_data_size );
 void set_error_status( const int retval );
 int final_exit_status( int retval, const bool show_msg = true );
-unsigned ustar_chksum( const uint8_t * const header );
-bool verify_ustar_chksum( const uint8_t * const header );
+unsigned ustar_chksum( const Tar_header header );
+bool verify_ustar_chksum( const Tar_header header );
 bool has_lz_ext( const std::string & name );
 int concatenate( const Cl_options & cl_opts );
 int encode( Cl_options & cl_opts );
@@ -472,13 +508,14 @@ int seek_read( const int fd, uint8_t * const buf, const int size,
 
 // defined in main.cc
 extern int verbosity;
+extern const char * const program_name;
 struct stat;
 int hstat( const char * const filename, struct stat * const st,
            const bool dereference );
 int open_instream( const std::string & name );
 int open_outstream( const std::string & name, const bool create = true,
-                    Resizable_buffer * const rbufp = 0 );
-void cleanup_and_fail( const int retval = 1 );	// terminate the program
+                    Resizable_buffer * const rbufp = 0, const bool force = true );
+void exit_fail_mt( const int retval = 1 );	// terminate the program
 void show_error( const char * const msg, const int errcode = 0,
                  const bool help = false );
 void format_file_error( std::string & estr, const char * const filename,