lzip/lunzip
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Merging upstream version 1.9.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-17 22:23:44 +01:00
parent e5be76c890
commit 07fbebf95d
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
18 changed files with 1019 additions and 397 deletions
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33
lzip.h
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@ -1,5 +1,5 @@
/* Lunzip - Decompressor for the lzip format
Copyright (C) 2010-2016 Antonio Diaz Diaz.
Copyright (C) 2010-2017 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
@ -49,6 +49,7 @@ enum {
min_dictionary_size = 1 << min_dictionary_bits, /* >= modeled_distances */
max_dictionary_bits = 29,
max_dictionary_size = 1 << max_dictionary_bits,
min_member_size = 36,
literal_context_bits = 3,
literal_pos_state_bits = 0, /* not used */
pos_state_bits = 2,
@ -131,9 +132,9 @@ static inline void Pp_init( struct Pretty_print * const pp,
pp->stdin_name = "(stdin)";
pp->longest_name = 0;
pp->first_post = false;
stdin_name_len = strlen( pp->stdin_name );
if( verbosity <= 0 ) return;
stdin_name_len = strlen( pp->stdin_name );
for( i = 0; i < num_filenames; ++i )
{
const char * const s = filenames[i];
@ -179,11 +180,18 @@ static inline void CRC32_update_buf( uint32_t * const crc,
const int size )
{
int i;
uint32_t c = *crc;
for( i = 0; i < size; ++i )
*crc = crc32[(*crc^buffer[i])&0xFF] ^ ( *crc >> 8 );
c = crc32[(c^buffer[i])&0xFF] ^ ( c >> 8 );
*crc = c;
}
static inline bool isvalid_ds( const unsigned dictionary_size )
{ return ( dictionary_size >= min_dictionary_size &&
dictionary_size <= max_dictionary_size ); }
static const uint8_t magic_string[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */
typedef uint8_t File_header[6]; /* 0-3 magic bytes */
@ -246,7 +254,26 @@ static inline unsigned long long Ft_get_member_size( const File_trailer data )
}
static const char * const bad_magic_msg = "Bad magic number (file not in lzip format).";
static const char * const bad_dict_msg = "Invalid dictionary size in member header.";
static const char * const trailing_msg = "Trailing data not allowed.";
/* defined in decoder.c */
int readblock( const int fd, uint8_t * const buf, const int size );
/* defined in list.c */
int list_files( const char * const filenames[], const int num_filenames,
const bool ignore_trailing );
/* defined in main.c */
extern int verbosity;
struct stat;
const char * bad_version( const unsigned version );
const char * format_ds( const unsigned dictionary_size );
int open_instream( const char * const name, struct stat * const in_statsp,
const bool no_ofile, const bool reg_only );
void * resize_buffer( void * buf, const unsigned min_size );
void cleanup_and_fail( const int retval );
void show_error( const char * const msg, const int errcode, const bool help );
void show_file_error( const char * const filename, const char * const msg,
const int errcode );