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Adding upstream version 0.7.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-20 16:16:10 +01:00
parent 3b7a859d05
commit 37258e3901
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
12 changed files with 113 additions and 102 deletions
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62
lzcheck.cc
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@ -29,6 +29,11 @@
#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
#endif
const int buffer_size = 65536;
uint8_t in_buffer[buffer_size];
uint8_t mid_buffer[buffer_size];
uint8_t out_buffer[buffer_size];
int main( const int argc, const char * argv[] )
{
@ -38,28 +43,15 @@ int main( const int argc, const char * argv[] )
return 1;
}
FILE *f = std::fopen( argv[1], "rb" );
if( !f )
FILE *file = std::fopen( argv[1], "rb" );
if( !file )
{
std::fprintf( stderr, "Can't open file `%s' for reading\n", argv[1] );
return 1;
}
// std::fprintf( stderr, "lzcheck: testing file `%s'\n", argv[1] );
const int in_buffer_size = 1 << 20;
const int mid_buffer_size = 65536;
const int out_buffer_size = in_buffer_size;
uint8_t in_buffer[in_buffer_size];
uint8_t mid_buffer[mid_buffer_size];
uint8_t out_buffer[out_buffer_size];
const int in_size = std::fread( in_buffer, 1, in_buffer_size, f );
if( in_size >= in_buffer_size )
{
std::fprintf( stderr, "input file `%s' too big.\n", argv[1] );
return 1;
}
std::fclose( f );
const int dictionary_size = in_buffer_size;
const int dictionary_size = 1 << 20;
const int match_len_limit = 80;
const long long member_size = LLONG_MAX;
void * encoder = LZ_compress_open( dictionary_size, match_len_limit,
@ -85,27 +77,35 @@ int main( const int argc, const char * argv[] )
return 1;
}
for( int l = 0, r = 0; r < in_size; l = r )
while( true )
{
while( ++r < in_size && in_buffer[r-1] != '\n' ) ;
LZ_compress_write( encoder, in_buffer + l, r - l );
LZ_compress_sync_flush( encoder );
int mid_size = LZ_compress_read( encoder, mid_buffer, mid_buffer_size );
LZ_decompress_write( decoder, mid_buffer, mid_size );
int out_size = LZ_decompress_read( decoder, out_buffer, out_buffer_size );
const int read_size = std::fread( in_buffer, 1, buffer_size, file );
if( read_size <= 0 ) break;
if( out_size != r - l || std::memcmp( in_buffer + l, out_buffer, out_size ) )
for( int l = 0, r = 1; r <= read_size; l = r, ++r )
{
std::printf( "sync error at pos %d. in_size = %d, out_size = %d\n",
l, r - l, out_size );
for( int i = l; i < r; ++i ) std::putchar( in_buffer[i] );
if( in_buffer[r-1] != '\n' ) std::putchar( '\n' );
for( int i = 0; i < out_size; ++i ) std::putchar( out_buffer[i] );
std::putchar( '\n' );
while( r < read_size && in_buffer[r-1] != '\n' ) ++r;
const int in_size = LZ_compress_write( encoder, in_buffer + l, r - l );
if( in_size < r - l ) r = l + in_size;
LZ_compress_sync_flush( encoder );
const int mid_size = LZ_compress_read( encoder, mid_buffer, buffer_size );
LZ_decompress_write( decoder, mid_buffer, mid_size );
const int out_size = LZ_decompress_read( decoder, out_buffer, buffer_size );
if( out_size != in_size || std::memcmp( in_buffer + l, out_buffer, out_size ) )
{
std::printf( "sync error at pos %d. in_size = %d, out_size = %d\n",
l, in_size, out_size );
for( int i = 0; i < in_size; ++i ) std::putchar( in_buffer[l+i] );
if( in_buffer[l+in_size-1] != '\n' ) std::putchar( '\n' );
for( int i = 0; i < out_size; ++i ) std::putchar( out_buffer[i] );
std::putchar( '\n' );
}
}
}
LZ_decompress_close( decoder );
LZ_compress_close( encoder );
std::fclose( file );
return 0;
}