stream_flags_common.c File Reference

Common stuff for Stream flags coders. More...

#include "stream_flags_common.h"

Go to the source code of this file.

Functions
	LZMA_API (lzma_ret)

Variables
const uint8_t	lzma_header_magic [6] = { 0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00 }
const uint8_t	lzma_footer_magic [2] = { 0x59, 0x5A }

Detailed Description

Common stuff for Stream flags coders.

Definition in file stream_flags_common.c.

Function Documentation

LZMA_API()

LZMA_API

(

lzma_ret

)

Definition at line 20 of file stream_flags_common.c.

{
    // We can compare only version 0 structures.
    if (a->version != 0 || b->version != 0)
        return LZMA_OPTIONS_ERROR;
 
    // Check type
    if ((unsigned int)(a->check) > LZMA_CHECK_ID_MAX
            || (unsigned int)(b->check) > LZMA_CHECK_ID_MAX)
        return LZMA_PROG_ERROR;
 
    if (a->check != b->check)
        return LZMA_DATA_ERROR;
 
    // Backward Sizes are compared only if they are known in both.
    if (a->backward_size != LZMA_VLI_UNKNOWN
            && b->backward_size != LZMA_VLI_UNKNOWN) {
        if (!is_backward_size_valid(a) || !is_backward_size_valid(b))
            return LZMA_PROG_ERROR;
 
        if (a->backward_size != b->backward_size)
            return LZMA_DATA_ERROR;
    }
 
    return LZMA_OK;
}

References a, b, is_backward_size_valid(), LZMA_CHECK_ID_MAX, LZMA_DATA_ERROR, LZMA_OK, LZMA_OPTIONS_ERROR, LZMA_PROG_ERROR, and LZMA_VLI_UNKNOWN.

Variable Documentation

lzma_footer_magic

const uint8_t lzma_footer_magic[2] = { 0x59, 0x5A }

Definition at line 17 of file stream_flags_common.c.

lzma_header_magic

const uint8_t lzma_header_magic[6] = { 0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00 }

Definition at line 16 of file stream_flags_common.c.

Referenced by LZMA_API().