lzip/lzd
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Adding upstream version 0.4.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-20 14:27:26 +01:00
parent aa21ef5801
commit de2a929d0f
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
5 changed files with 18 additions and 14 deletions
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19
lzd.cc
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@ -110,7 +110,8 @@ public:
}
}
void update( uint32_t & crc, const uint8_t * const buffer, const int size ) const
void update_buf( uint32_t & crc, const uint8_t * const buffer,
const int size ) const
{
for( int i = 0; i < size; ++i )
crc = data[(crc^buffer[i])&0xFF] ^ ( crc >> 8 );
@ -278,7 +279,7 @@ void LZ_decoder::flush_data()
if( pos > stream_pos )
{
const unsigned size = pos - stream_pos;
crc32.update( crc_, buffer + stream_pos, size );
crc32.update_buf( crc_, buffer + stream_pos, size );
errno = 0;
if( std::fwrite( buffer + stream_pos, 1, size, stdout ) != size )
{ std::fprintf( stderr, "Write error: %s\n", std::strerror( errno ) );
@ -328,12 +329,7 @@ bool LZ_decoder::decode_member() // Returns false if error
int len;
if( rdec.decode_bit( bm_rep[state()] ) == 1 ) // 2nd bit
{
if( rdec.decode_bit( bm_rep0[state()] ) == 0 ) // 3rd bit
{
if( rdec.decode_bit( bm_len[state()][pos_state] ) == 0 ) // 4th bit
{ state.set_short_rep(); put_byte( get_byte( rep0 ) ); continue; }
}
else
if( rdec.decode_bit( bm_rep0[state()] ) == 1 ) // 3rd bit
{
unsigned distance;
if( rdec.decode_bit( bm_rep1[state()] ) == 0 ) // 4th bit
@ -349,6 +345,11 @@ bool LZ_decoder::decode_member() // Returns false if error
rep1 = rep0;
rep0 = distance;
}
else
{
if( rdec.decode_bit( bm_len[state()][pos_state] ) == 0 ) // 4th bit
{ state.set_short_rep(); put_byte( get_byte( rep0 ) ); continue; }
}
len = min_match_len + rdec.decode_len( rep_len_model, pos_state );
state.set_rep();
}
@ -405,7 +406,7 @@ int main( const int argc, const char * const argv[] )
"This is free software: you are free to change and redistribute it.\n"
"There is NO WARRANTY, to the extent permitted by law.\n"
"Report bugs to lzip-bug@nongnu.org\n"
"Lzip home page: http://www.nongnu.org/lzip/lzip.html\n" );
"Lzd home page: http://www.nongnu.org/lzip/lzd.html\n" );
return 0;
}