lzip/tarlz
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Merging upstream version 0.9.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-17 21:10:53 +01:00
parent 2ab7382c1c
commit f787962ed2
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
25 changed files with 1761 additions and 353 deletions
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68
tarlz.h
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@ -1,5 +1,5 @@
/* Tarlz - Archiver with multimember lzip compression
Copyright (C) 2013-2018 Antonio Diaz Diaz.
Copyright (C) 2013-2019 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
@ -16,7 +16,7 @@
*/
enum { header_size = 512 };
typedef char Tar_header[header_size];
typedef uint8_t Tar_header[header_size];
enum Offsets {
name_o = 0, mode_o = 100, uid_o = 108, gid_o = 116, size_o = 124,
@ -33,13 +33,13 @@ enum Lengths {
enum Typeflag {
tf_regular = '0', tf_link = '1', tf_symlink = '2', tf_chardev = '3',
tf_blockdev = '4', tf_directory = '5', tf_fifo = '6', tf_hiperf = '7',
tf_extended = 'x' };
tf_global = 'g', tf_extended = 'x' };
const uint8_t ustar_magic[magic_l] =
{ 0x75, 0x73, 0x74, 0x61, 0x72, 0 }; // "ustar\0"
inline bool verify_ustar_magic( const uint8_t * const buf )
{ return std::memcmp( buf + magic_o, ustar_magic, magic_l ) == 0; }
inline bool verify_ustar_magic( const uint8_t * const header )
{ return std::memcmp( header + magic_o, ustar_magic, magic_l ) == 0; }
class CRC32C // Uses CRC32-C (Castagnoli) polynomial.
@ -101,15 +101,44 @@ struct Extended // stores metadata from/for extended records
void reset()
{ linkpath.clear(); path.clear(); size = 0; crc_present = false; }
bool empty() { return linkpath.empty() && path.empty() && size == 0; }
bool parse( const int infd, const Tar_header header, const bool permissive );
bool parse( const char * const buf, const unsigned long long edsize,
const bool permissive );
};
enum { initial_line_length = 1000 }; // must be >= 77
class Resizable_buffer
{
char * p;
unsigned size_;
public:
explicit Resizable_buffer( const unsigned initial_size )
: p( (char *)std::malloc( initial_size ) ), size_( p ? initial_size : 0 ) {}
~Resizable_buffer() { if( p ) std::free( p ); p = 0; size_ = 0; }
bool resize( const unsigned new_size )
{
if( size_ < new_size )
{
char * const tmp = (char *)std::realloc( p, new_size );
if( !tmp ) return false;
p = tmp; size_ = new_size;
}
return true;
}
char * operator()() const { return p; }
unsigned size() const { return size_; }
};
// defined in create.cc
enum Solidity { no_solid, dsolid, asolid, solid };
extern int cl_owner;
extern int cl_group;
extern int cl_solid;
unsigned ustar_chksum( const uint8_t * const buf );
bool verify_ustar_chksum( const uint8_t * const buf );
extern Solidity solidity;
unsigned ustar_chksum( const uint8_t * const header );
bool verify_ustar_chksum( const uint8_t * const header );
class Arg_parser;
int concatenate( const std::string & archive_name, const Arg_parser & parser,
const int filenames );
@ -117,16 +146,29 @@ int encode( const std::string & archive_name, const Arg_parser & parser,
const int filenames, const int level, const bool append );
// defined in extract.cc
bool block_is_zero( const uint8_t * const buf, const int size );
void format_member_name( const Extended & extended, const Tar_header header,
Resizable_buffer & rbuf, const bool long_format );
const char * remove_leading_slash( const char * const filename );
bool compare_prefix_dir( const char * const dir, const char * const name );
bool compare_tslash( const char * const name1, const char * const name2 );
unsigned long long parse_octal( const uint8_t * const ptr, const int size );
int decode( const std::string & archive_name, const Arg_parser & parser,
const int filenames, const bool keep_damaged, const bool listing,
const bool missing_crc, const bool permissive );
const int filenames, const int num_workers, const int debug_level,
const bool keep_damaged, const bool listing, const bool missing_crc,
const bool permissive );
// defined in list_lz.cc
class Lzip_index;
int list_lz( const Arg_parser & parser, std::vector< char > & name_pending,
const Lzip_index & lzip_index, const int filenames,
const int debug_level, const int infd, const int num_workers,
const bool missing_crc, const bool permissive );
// defined in main.cc
extern int verbosity;
int open_instream( const std::string & name );
int open_outstream( const std::string & name, const bool create = true );
int readblock( const int fd, uint8_t * const buf, const int size );
int writeblock( const int fd, const uint8_t * const buf, const int size );
void show_error( const char * const msg, const int errcode = 0,
const bool help = false );
void show_file_error( const char * const filename, const char * const msg,