lzip/lziprecover
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Adding upstream version 1.18~pre1.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-21 11:25:32 +01:00
parent f06ff1621d
commit cf6c2d1d59
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
17 changed files with 452 additions and 200 deletions
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39
mtester.h
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@ -37,16 +37,16 @@ public:
at_stream_end( false )
{}
void load()
{
for( int i = 0; i < 5; ++i ) code = (code << 8) | get_byte();
code &= range; // make sure that first byte is discarded
}
bool code_is_zero() const { return ( code == 0 ); }
bool finished() { return pos >= buffer_size; }
long member_position() const { return pos; }
uint8_t get_byte()
{
if( finished() ) return 0xAA; // make code != 0
return buffer[pos++];
}
const File_trailer * get_trailer()
{
if( buffer_size - pos < File_trailer::size ) return 0;
@ -55,10 +55,10 @@ public:
return p;
}
uint8_t get_byte()
void load()
{
if( finished() ) return 0xAA; // make code != 0
return buffer[pos++];
for( int i = 0; i < 5; ++i ) code = (code << 8) | get_byte();
code &= range; // make sure that first byte is discarded
}
void normalize()
@ -195,13 +195,13 @@ class LZ_mtester
Range_mtester rdec;
const unsigned dictionary_size;
const int buffer_size;
uint8_t * buffer; // output buffer
int pos; // current pos in buffer
int stream_pos; // first byte not yet written to file
uint8_t * buffer; /* output buffer */
int pos; /* current pos in buffer */
int stream_pos; /* first byte not yet written to file */
uint32_t crc_;
unsigned rep0; // rep[0-3] latest four distances
unsigned rep1; // used for efficient coding of
unsigned rep2; // repeated distances
unsigned rep0; /* rep[0-3] latest four distances */
unsigned rep1; /* used for efficient coding of */
unsigned rep2; /* repeated distances */
unsigned rep3;
State state;
@ -219,18 +219,17 @@ class LZ_mtester
Len_model match_len_model;
Len_model rep_len_model;
unsigned long long stream_position() const
{ return partial_data_pos + stream_pos; }
void flush_data();
bool verify_trailer();
void print_block( const int len );
uint8_t get_prev_byte() const
uint8_t peek_prev() const
{
const int i = ( ( pos > 0 ) ? pos : buffer_size ) - 1;
return buffer[i];
}
uint8_t get_byte( const int distance ) const
uint8_t peek( const int distance ) const
{
int i = pos - distance - 1;
if( i < 0 ) i += buffer_size;
@ -289,6 +288,8 @@ public:
void duplicate_buffer();
int test_member( const long pos_limit = LONG_MAX );
int debug_decode_member( const long long dpos, const long long mpos,
const bool show_packets );
};