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-rw-r--r--clzip.h (renamed from pdlzip.h)99
1 files changed, 66 insertions, 33 deletions
diff --git a/pdlzip.h b/clzip.h
index 6229d7c..0ec2756 100644
--- a/pdlzip.h
+++ b/clzip.h
@@ -1,5 +1,5 @@
/* Pdlzip - Data compressor based on the LZMA algorithm
- Copyright (C) 2010, 2011, 2012 Antonio Diaz Diaz.
+ Copyright (C) 2010, 2011, 2012, 2013 Antonio Diaz Diaz.
This program is free software: you have unlimited permission
to copy, distribute and modify it.
@@ -21,10 +21,12 @@ typedef enum Bool bool;
#define min(x,y) ((x) <= (y) ? (x) : (y))
#endif
+typedef int State;
+
enum {
min_dictionary_bits = 12,
min_dictionary_size = 1 << min_dictionary_bits,
- max_dictionary_bits = 26,
+ max_dictionary_bits = 29,
max_dictionary_size = 1 << max_dictionary_bits,
literal_context_bits = 3,
pos_state_bits = 2,
@@ -41,16 +43,43 @@ enum {
max_match_len = min_match_len + max_len_symbols - 1, /* 273 */
min_match_len_limit = 5 };
+
+struct Pretty_print
+ {
+ const char * name;
+ const char * stdin_name;
+ int longest_name;
+ int verbosity;
+ bool first_post;
+ };
+
+void Pp_init( struct Pretty_print * const pp, const char * const filenames[],
+ const int num_filenames, const int v );
+
+static inline void Pp_set_name( struct Pretty_print * const pp,
+ const char * const filename )
+ {
+ if( filename && filename[0] && strcmp( filename, "-" ) != 0 )
+ pp->name = filename;
+ else pp->name = pp->stdin_name;
+ pp->first_post = true;
+ }
+
+static inline void Pp_reset( struct Pretty_print * const pp )
+ { if( pp->name && pp->name[0] ) pp->first_post = true; }
+void Pp_show_msg( struct Pretty_print * const pp, const char * const msg );
+
+
typedef uint32_t CRC32[256]; /* Table of CRCs of all 8-bit messages. */
extern CRC32 crc32;
-static inline void CRC32_init()
+static inline void CRC32_init( void )
{
- unsigned int n;
+ unsigned n;
for( n = 0; n < 256; ++n )
{
- unsigned int c = n;
+ unsigned c = n;
int k;
for( k = 0; k < 8; ++k )
{ if( c & 1 ) c = 0xEDB88320U ^ ( c >> 1 ); else c >>= 1; }
@@ -58,10 +87,11 @@ static inline void CRC32_init()
}
}
-static inline void CRC32_update_byte( uint32_t * crc, const uint8_t byte )
+static inline void CRC32_update_byte( uint32_t * const crc, const uint8_t byte )
{ *crc = crc32[(*crc^byte)&0xFF] ^ ( *crc >> 8 ); }
-static inline void CRC32_update_buf( uint32_t * crc, const uint8_t * const buffer,
- const int size )
+
+static inline void CRC32_update_buf( uint32_t * const crc,
+ const uint8_t * const buffer, const int size )
{
int i;
for( i = 0; i < size; ++i )
@@ -69,16 +99,15 @@ static inline void CRC32_update_buf( uint32_t * crc, const uint8_t * const buffe
}
-static inline int real_bits( const int value )
+static inline int real_bits( unsigned value )
{
- int bits = 0, i, mask;
- for( i = 1, mask = 1; mask > 0; ++i, mask <<= 1 )
- if( value & mask ) bits = i;
+ int bits = 0;
+ while( value > 0 ) { value >>= 1; ++bits; }
return bits;
}
-static const uint8_t magic_string[4] = { 'L', 'Z', 'I', 'P' };
+static const uint8_t magic_string[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */
typedef uint8_t File_header[6]; /* 0-3 magic bytes */
/* 4 version */
@@ -86,15 +115,10 @@ typedef uint8_t File_header[6]; /* 0-3 magic bytes */
enum { Fh_size = 6 };
static inline void Fh_set_magic( File_header data )
- {
- memcpy( data, magic_string, 4 );
- data[4] = 1;
- }
+ { memcpy( data, magic_string, 4 ); data[4] = 1; }
static inline bool Fh_verify_magic( const File_header data )
- {
- return ( memcmp( data, magic_string, 4 ) == 0 );
- }
+ { return ( memcmp( data, magic_string, 4 ) == 0 ); }
static inline uint8_t Fh_version( const File_header data )
{ return data[4]; }
@@ -102,11 +126,11 @@ static inline uint8_t Fh_version( const File_header data )
static inline bool Fh_verify_version( const File_header data )
{ return ( data[4] <= 1 ); }
-static inline int Fh_get_dictionary_size( const File_header data )
+static inline unsigned Fh_get_dictionary_size( const File_header data )
{
- int sz = ( 1 << ( data[5] & 0x1F ) );
- if( sz > min_dictionary_size && sz <= max_dictionary_size )
- sz -= ( sz / 16 ) * ( ( data[5] >> 5 ) & 0x07 );
+ unsigned sz = ( 1 << ( data[5] & 0x1F ) );
+ if( sz > min_dictionary_size )
+ sz -= ( sz / 16 ) * ( ( data[5] >> 5 ) & 7 );
return sz;
}
@@ -140,51 +164,60 @@ enum { Ft_size = 20 };
static inline int Ft_versioned_size( const int version )
{ return ( ( version >= 1 ) ? 20 : 12 ); }
-static inline uint32_t Ft_get_data_crc( const File_trailer data )
+static inline unsigned Ft_get_data_crc( const File_trailer data )
{
- uint32_t tmp = 0;
+ unsigned tmp = 0;
int i;
for( i = 3; i >= 0; --i ) { tmp <<= 8; tmp += data[i]; }
return tmp;
}
-static inline void Ft_set_data_crc( File_trailer data, uint32_t crc )
+static inline void Ft_set_data_crc( File_trailer data, unsigned crc )
{
int i;
for( i = 0; i <= 3; ++i ) { data[i] = (uint8_t)crc; crc >>= 8; }
}
-static inline long long Ft_get_data_size( const File_trailer data )
+static inline unsigned long long Ft_get_data_size( const File_trailer data )
{
- long long tmp = 0;
+ unsigned long long tmp = 0;
int i;
for( i = 11; i >= 4; --i ) { tmp <<= 8; tmp += data[i]; }
return tmp;
}
-static inline void Ft_set_data_size( File_trailer data, long long sz )
+static inline void Ft_set_data_size( File_trailer data, unsigned long long sz )
{
int i;
for( i = 4; i <= 11; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; }
}
-static inline long long Ft_get_member_size( const File_trailer data )
+static inline unsigned long long Ft_get_member_size( const File_trailer data )
{
- long long tmp = 0;
+ unsigned long long tmp = 0;
int i;
for( i = 19; i >= 12; --i ) { tmp <<= 8; tmp += data[i]; }
return tmp;
}
-static inline void Ft_set_member_size( File_trailer data, long long sz )
+static inline void Ft_set_member_size( File_trailer data, unsigned long long sz )
{
int i;
for( i = 12; i <= 19; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; }
}
+/* defined in LzmaDec.c */
+int readblock( const int fd, uint8_t * const buf, const int size );
+int writeblock( const int fd, const uint8_t * const buf, const int size );
+
/* defined in main.c */
extern int verbosity;
void show_error( const char * const msg, const int errcode, const bool help );
void internal_error( const char * const msg );
+
+#define SZ_OK 0
+
+#define SZ_ERROR_READ 8
+#define SZ_ERROR_WRITE 9
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 01:55:13 +0000