lzip/lzlib
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Merging upstream version 1.12.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-20 21:31:06 +01:00
parent 4f55f2a35b
commit e62d82c53f
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
40 changed files with 3224 additions and 1857 deletions
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64
lzlib.c
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@ -1,20 +1,20 @@
/* Lzlib - Compression library for the lzip format
Copyright (C) 2009-2019 Antonio Diaz Diaz.
/* Lzlib - Compression library for the lzip format
Copyright (C) 2009-2021 Antonio Diaz Diaz.
This library is free software. Redistribution and use in source and
binary forms, with or without modification, are permitted provided
that the following conditions are met:
This library is free software. Redistribution and use in source and
binary forms, with or without modification, are permitted provided
that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
1. Redistributions of source code must retain the above copyright
notice, this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions, and the following disclaimer in the
documentation and/or other materials provided with the distribution.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <stdbool.h>
@ -105,11 +105,12 @@ static bool verify_decoder( struct LZ_Decoder * const d )
}
/*------------------------- Misc Functions -------------------------*/
/* ------------------------- Misc Functions ------------------------- */
int LZ_api_version( void ) { return LZ_API_VERSION; }
const char * LZ_version( void ) { return LZ_version_string; }
const char * LZ_strerror( const enum LZ_Errno lz_errno )
{
switch( lz_errno )
@ -135,7 +136,7 @@ int LZ_min_match_len_limit( void ) { return min_match_len_limit; }
int LZ_max_match_len_limit( void ) { return max_match_len; }
/*---------------------- Compression Functions ----------------------*/
/* --------------------- Compression Functions --------------------- */
struct LZ_Encoder * LZ_compress_open( const int dictionary_size,
const int match_len_limit,
@ -226,8 +227,8 @@ int LZ_compress_restart_member( struct LZ_Encoder * const e,
int LZ_compress_sync_flush( struct LZ_Encoder * const e )
{
if( !verify_encoder( e ) || e->fatal ) return -1;
if( !Mb_flushing_or_end( &e->lz_encoder_base->mb ) )
e->lz_encoder_base->mb.flushing = true;
if( !e->lz_encoder_base->mb.at_stream_end )
e->lz_encoder_base->mb.sync_flush_pending = true;
return 0;
}
@ -235,24 +236,22 @@ int LZ_compress_sync_flush( struct LZ_Encoder * const e )
int LZ_compress_read( struct LZ_Encoder * const e,
uint8_t * const buffer, const int size )
{
int out_size = 0;
if( !verify_encoder( e ) || e->fatal ) return -1;
if( size < 0 ) return 0;
do {
{ struct LZ_encoder_base * const eb = e->lz_encoder_base;
int out_size = Re_read_data( &eb->renc, buffer, size );
/* minimize number of calls to encode_member */
if( out_size < size || size == 0 )
{
if( ( e->flz_encoder && !FLZe_encode_member( e->flz_encoder ) ) ||
( e->lz_encoder && !LZe_encode_member( e->lz_encoder ) ) )
{ e->lz_errno = LZ_library_error; e->fatal = true; return -1; }
if( e->lz_encoder_base->mb.flushing &&
Mb_available_bytes( &e->lz_encoder_base->mb ) <= 0 &&
LZeb_sync_flush( e->lz_encoder_base ) )
e->lz_encoder_base->mb.flushing = false;
out_size += Re_read_data( &e->lz_encoder_base->renc,
buffer + out_size, size - out_size );
if( eb->mb.sync_flush_pending && Mb_available_bytes( &eb->mb ) <= 0 )
LZeb_try_sync_flush( eb );
out_size += Re_read_data( &eb->renc, buffer + out_size, size - out_size );
}
while( e->lz_encoder_base->mb.flushing && out_size < size &&
Mb_enough_available_bytes( &e->lz_encoder_base->mb ) &&
Re_enough_free_bytes( &e->lz_encoder_base->renc ) );
return out_size;
return out_size; }
}
@ -321,7 +320,7 @@ unsigned long long LZ_compress_total_out_size( struct LZ_Encoder * const e )
}
/*--------------------- Decompression Functions ---------------------*/
/* -------------------- Decompression Functions -------------------- */
struct LZ_Decoder * LZ_decompress_open( void )
{
@ -401,10 +400,11 @@ int LZ_decompress_read( struct LZ_Decoder * const d,
{
int result;
if( !verify_decoder( d ) ) return -1;
if( size < 0 ) return 0;
if( d->fatal ) /* don't return error until pending bytes are read */
{ if( d->lz_decoder && !Cb_empty( &d->lz_decoder->cb ) ) goto get_data;
return -1; }
if( d->seeking || size < 0 ) return 0;
if( d->seeking ) return 0;
if( d->lz_decoder && LZd_member_finished( d->lz_decoder ) )
{