XZ Utils 5.2.10
Data Structures | Macros | Functions | Variables
check.h File Reference

Internal API to different integrity check functions. More...

#include "common.h"

Data Structures

struct  lzma_sha256_state
 State for the internal SHA-256 implementation. More...
 
struct  lzma_check_state
 Structure to hold internal state of the check being calculated. More...
 

Macros

#define HAVE_INTERNAL_SHA256   1
 
#define LZMA_CHECK_BEST   LZMA_CHECK_CRC32
 

Functions

void lzma_check_init (lzma_check_state *check, lzma_check type)
 Initialize *check depending on type. More...
 
void lzma_check_update (lzma_check_state *check, lzma_check type, const uint8_t *buf, size_t size)
 Update the check state. More...
 
void lzma_check_finish (lzma_check_state *check, lzma_check type)
 Finish the check calculation and store the result to check->buffer.u8. More...
 
void lzma_sha256_init (lzma_check_state *check)
 Prepare SHA-256 state for new input. More...
 
void lzma_sha256_update (const uint8_t *buf, size_t size, lzma_check_state *check)
 Update the SHA-256 hash state. More...
 
void lzma_sha256_finish (lzma_check_state *check)
 Finish the SHA-256 calculation and store the result to check->buffer.u8. More...
 

Variables

const uint32_t lzma_crc32_table [8][256]
 
const uint64_t lzma_crc64_table [4][256]
 

Detailed Description

Internal API to different integrity check functions.

Function Documentation

◆ lzma_check_init()

void lzma_check_init ( lzma_check_state check,
lzma_check  type 
)

Initialize *check depending on type.

Returns
LZMA_OK on success. LZMA_UNSUPPORTED_CHECK if the type is not supported by the current version or build of liblzma. LZMA_PROG_ERROR if type > LZMA_CHECK_ID_MAX.

References check, LZMA_CHECK_CRC32, LZMA_CHECK_CRC64, LZMA_CHECK_NONE, LZMA_CHECK_SHA256, and lzma_sha256_init().

◆ lzma_check_update()

void lzma_check_update ( lzma_check_state check,
lzma_check  type,
const uint8_t *  buf,
size_t  size 
)

◆ lzma_check_finish()

void lzma_check_finish ( lzma_check_state check,
lzma_check  type 
)

Finish the check calculation and store the result to check->buffer.u8.

References check, and LZMA_CHECK_CRC32.

Referenced by lzma_index_hash_decode().

◆ lzma_sha256_init()

void lzma_sha256_init ( lzma_check_state check)

Prepare SHA-256 state for new input.

References check.

Referenced by lzma_check_init().

◆ lzma_sha256_update()

void lzma_sha256_update ( const uint8_t *  buf,
size_t  size,
lzma_check_state check 
)

Update the SHA-256 hash state.

References check.

Referenced by lzma_check_update().

◆ lzma_sha256_finish()

void lzma_sha256_finish ( lzma_check_state check)

Finish the SHA-256 calculation and store the result to check->buffer.u8.

References check.

Variable Documentation

◆ lzma_crc32_table

const uint32_t lzma_crc32_table[8][256]
extern

lzma_crc32_table[0] is needed by LZ encoder so we need to keep the array two-dimensional.